Multiquip Oxygen Equipment C 30HD User Manual
PARTS AND OPERATION MANUAL  
Concrete Pump  
Model C-30HD  
Revision #4 (03/06/01)  
MULTIQUIPINC.  
PARTS DEPARTMENT:  
18910 WILMINGTON AVE.  
800-427-1244  
CARSON, CALIFORNIA 90746 FAX: 800-672-7877  
310-537-3700  
800-421-1244  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:  
800-478-1244  
FAX:310-537-3927  
FAX:310-631-5032  
E-mail:mq@multiquip.com • www:multiquip.com  
Atlanta • Boise • Dallas • Houston • Newark  
Montreal, Canada • Manchester, UK  
Rio De Janiero, Brazil • Guadalajara, Mexico  
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HERE'S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL NUMBER  
ON-HANDWHEN CALLING  
PARTS DEPARTMENT  
800-427-1244 or 310-537-3700  
FAX: 800-672-7877 or 310-637-3284  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE  
800-478-1244 or 310-537-3700  
FAX: 310- 537-4259  
WARRANTY DEPARTMENT  
888-661-4279, or 310-661-4279  
FAX: 310- 537-1173  
MAIN  
800-421-1244 or 310-537-3700  
FAX: 310-537-3927  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 3  
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TABLE OF CONTENTS  
Here's how to get help ............................................ 3  
Table of contents..................................................... 4  
Parts ordering procedures ...................................... 5  
Hopper and Hood ............................................60-61  
Optional Features  
C-30MG Scaled Down Manifold/Cylinder Kit ........ 62  
C-30MG Manifold Assembly ............................64-65  
C-30MG Piston Head Components.................66-67  
C-30SP Optional Screw Conveyor  
and Torque Limiter ...........................................68-69  
Recommended Shotcrete System ..................70-71  
Shotcrete Accessories .....................................72-73  
C-30HD  
Specifications.......................................................... 6  
Pump Warranty ....................................................... 7  
Safety Instructions .................................................. 8  
Important Hand Signals.......................................... 9  
General Information .............................................. 10  
How it Works ....................................................12-13  
Operating Information/Clean-Up Procedures ..14-18  
Concrete Mix Information ................................19-22  
Slump Test Procedure ........................................... 23  
Explanation Of Codes In Remarks Column .......... 24  
Suggested Spare Parts ......................................... 25  
Service Information  
Service Procedures .........................................74-75  
Manufacturing Changes................................... 76-78  
Remote Controls, Engine RPM ............................ 79  
Wiring Schematic............................................. 80-81  
Linkage Adjustment (Old Style Solenoid) ............ 82  
Torque Limiter Model (C30SP Option) ................. 83  
Bearing Installation ............................................... 84  
Connecting Rod Assembly ................................... 85  
Piston Head Lubrication System .......................... 86  
Return Spring Adjustment Procedure .................. 87  
Belt and Chain Adjustment ................................... 88  
Roller Chain — Application Information .......... 89-90  
Component Illustrations  
Control Panel......................................................... 25  
Frame ...............................................................26-27  
Gasoline Engine Control .................................28-29  
Diesel Engine Control ......................................30-31  
Manifold Assembly (Exploded View) .................... 33  
Concrete Delivery ............................................34-35  
Clutch Assembly ................................................... 36  
Crankshaft Assembly (Exploded View) ...........38-39  
Crankshaft Assembly.......................................40-41  
Countershaft Assembly ...................................42-43  
Compensator Piston Rod ................................44-45  
Connnecting Rod Assembly (Old Style)..........46-47  
Connnecting Rod Assembly (New Style) ........48-49  
Rocker Assembly.............................................50-51  
Compensating Spring Assembly .......................... 52  
Return Spring Assembly....................................... 53  
Oil System and Fuel System ...........................54-55  
Central Grease Lubrication Panel ......................... 56  
Axle Installation ................................................58-59  
Terms and Conditions of Sale — Parts .................91  
NOTE: Specification and part number  
are subject to change without notice.  
PAGE 4 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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PARTS ORDERING PROCEDURES  
Dealer account number  
Dealer name and address  
Shipping address (if different than billing address)  
Return fax number  
Applicable model number  
Quantity, part number and description of each part  
Specify preferred method of shipment:  
UPS Ground  
•
UPS Second Day or Third Day*  
•
UPS Next Day*  
•
Federal Express Priority One (please provide us with your Federal  
Express account number)*  
•
Airborne Express*  
•
Truck or parcel post  
•
*Normally shipped the same day the order is received, if prior to 2PM west coast time.  
Earn Extra Discounts when  
you order by FAX!  
All parts orders which include complete part numbers  
and are received by fax qualify for the following extra  
discounts:  
Number of  
line items ordered  
Additional Discount  
1-9 items  
3%  
10+ items**  
5%  
Get special freight allowances  
when you order 10 or more  
line items via FAX!**  
Now! Direct TOLL-FREE access  
to our Parts Department!  
UPS Ground Service at no charge for freight  
PS Third Day Service at one-half of actual freight cost  
No other allowances on freight shipped by any other carrier.  
Toll-free nationwide:  
800-421-1244  
**Common nuts, bolts and washers (all items under $1.00 list price)  
do not count towards the 10+ line items.  
Toll-free FAX:  
*DISCOUNTS ARE SUBJECT TO CHANGE*  
800/6-PARTS-7 • 800-672-7877  
Fax order discount and UPS special programs revised June 1, 1995  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 5  
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C-30HD SPECIFICATIONS  
PERFORMANCE  
Pumping Rate .................................................................................................................. 25 cu. yds. per hour  
Maximum Aggregate Size ................................................................................................1/2" minus (35mm)  
Verticle Pumping Height ...................................................................................................Excess of 100 ft. (60 m)  
Horizontal Pumping Distance ...........................................................................................400 to 500 ft. (300 m)  
Engine — Gas..................................................................................................................30 HP Wisconsin VH4D  
Engine — Diesel ..............................................................................................................30 HP Hatz Z790  
Pump................................................................................................................................Reciprocating piston  
Remote Control ................................................................................................................Standard  
Hopper Capacity ..............................................................................................................6 cu. ft.  
Material Hose ...................................................................................................................2" or 2 1/2"  
DIMENSIONS  
L x W x H ..........................................................................................................................10 ft. x 4 1/2 ft. x 4 1/2 ft.  
Weight ..............................................................................................................................2,200 lbs.  
Tire Size ...........................................................................................................................7.35 - 14  
PAGE 6 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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MAYCO PUMPWARRANTY  
Mechanical Drive Models  
Hydraulic Drive Models  
MAYCO PUMP, hereinafter referred to as “Manufacturer’,  
warrants each new Mayco Pump sold by the manufacturer to  
be free from defects in material and workmanship, under  
normal use and service, for a period of one year after the date  
of delivery to the original retail purchaser.Manufacturer will, at  
its option, replace or repair at a point designated by the  
Manufacturer any part or parts which shall appear to the  
satisfaction of the Manufacturer upon inspection at such point  
to have been defective in material or workmanship. This  
warranty does not obligate the Manufacturer to bear any  
transportation charges or labor charges in connection with  
the replacement or repair the of the defective parts.  
MAYCO PUMP, hereinafter referred to as “Manufacturer”,  
warrants each new Mayco Pump sold by the manufacturer to  
be free from defects in material and workmanship, under  
normal use and service, for a period of one year or 2000 hours  
after the date of delivery to the original retail purchaser. The  
Manufacturer will, at its option, replace or repair at a point  
designated by Manufacturer any part or parts which shall  
appear to the satisfaction of Manufacturer upon inspection at  
such point to have been defective in material or workmanship.  
This warranty does not obligate Manufacturer to bear any  
transportation charges or labor charges in connection with  
the replacement or repair of the defective parts.  
This warranty does not apply to any pump if attempts have  
been made to pump concrete materials which have  
separated, to any pump which has been repaired with other  
than Genuine Mayco Parts, nor to any pump which has been  
altered, repaired or used in such manner as to adversely affect  
its performance, nor to normal service or maintenance or where  
blockages have developed within the pump manifold or  
placing line or which has been operated in any other manner  
not recommended by the Manufacturer. Due to the abrasive  
nature of concrete, Mayco does not cover natural component  
wear.  
This warranty does not apply to any pump if attempts have  
been made to pump concrete materials which have  
separated, to any pump which has been repaired with other  
than Genuine Mayco Parts, nor to any pump which has been  
altered, repaired or used in such manner as to adversely affect  
it’s performance, nor to normal service or maintenance or  
where blockages have developed within the pump manifold  
or placing line or which has been operated in any other manner  
not recommended by the Manufacturer. Due to the abrasive  
nature of concrete, Mayco does not cover natural component  
wear.  
THIS WARRANTY AND MANUFACTURER’S OBLIGATION  
HEREUNDER, IS IN LIEU OF ALL OTHER WARRANTIES,  
EXPRESS, IMPLIED OR STATUTORY AND ALL OTHER  
OBLIGATIONS OR LIABILITIES INCLUDING SPECIAL OR  
CONSEQUENTIAL DAMAGES OR CONTINGENT LIABILITIES  
ARISING OUT OF THE FAILURE OF ANY PUMP OR PART  
TO OPERATE PROPERLY, INCLUDING ANY WARRANTIES  
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR  
PURPOSE.  
THIS WARRANTY AND MANUFACTURER’S OBLIGATION  
HEREUNDER, IS IN LIEU OF ALL OTHER WARRANTIES,  
EXPRESS, IMPLIED OR STATUTORY AND ALL OTHER  
OBLIGATIONS OR LIABILITIES INCLUDING SPECIAL OR  
CONSEQUENTIAL DAMAGES OR CONTINGENT LIABILITIES  
ARISING OUT OF THE FAILURE OF ANY PUMP OR PART  
TO OPERATE PROPERLY, INCLUDING ANY WARRANTIES  
OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR  
PURPOSE.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 7  
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SAFETY INSTRUCTIONS  
17. Do not use worn out hoses or couplings; inspect daily.  
1. Read the Mayco Owners Manual before  
moving or operating the unit.  
18. Do not disconnect the hose couplings or nozzle while they  
are under pressure. Relieve the pressure by manually  
swinging the clamp arm latch handle to the first open position  
at the exhaust cone outlet.  
2. Do not attempt to operate this pump without  
a thorough understanding of this technical  
manual.  
19. Never fill the fuel tank while the engine is running or hot;  
avoid the possibility of spilled fuel causing a fire.  
3. To prevent damage to equipment or injury to personnel,  
these instructions must be followed carefully.  
20. Always carry a fire extinguisher of adequate size and a  
first aid kit.  
4. A copy of this manual shall accompany the pump at all times.  
5. This equipment shall be operated only by experienced  
operators or students under the direct supervision of an  
experienced operator.  
21. Always wear safety glasses when spraying material.  
22.The unit should not be towed in excess of 45 MPH (or less  
depending on road conditions).  
6. No unauthorized persons shall be permitted to assist or  
remain in the vicinity of the unit while it is in operation, or during  
the performance, inspection, cleaning, or repair or make-ready  
operation.  
23. Pull the tail light switch “ON” for night towing.  
24. Do not tow the pump with the hopper full of material.  
25. Do not tow the pump with the hoses attached.  
CAUTION  
7.This equipment shall not be towed or operated by individuals  
who cannot read and understand the signs, decals, or  
operating instructions.  
If hoses or lines are blocked for any reason,  
or if the lines are kinked when starting up or  
during the pumping cycle, the pump pressure  
8. This equipment shall not be operated by individuals under  
the influence of alcohol or drugs.  
could straighten out the kink or force out the  
9. Before towing, check the hitch and secure the safety chain  
to the towing vehicle. Also check for proper tire pressure.  
blockage.This rapid surge of material could cause the lines to  
whip or move in a manner that could cause injury to personnel.  
10. Tow only with a vehicle and hitch rated to pull a 2200 lb.  
load.  
Inspect the lines at all times to prevent the above  
conditions.  
11.If pump is equipped with ball hitch coupler, use only a 2”all  
steel ball rated for a minimum of 5000 lbs. Use a 1” hardened  
steel pull pin, if the pump is equipped with a pin hitch.  
12. Before start-up, check the hopper and remove all  
obstructions.  
13. Keep all hands out of the hopper when the engine is  
running.  
14. The engine must be turned off before performing any  
service operations.  
15. Do not operate the pump with the hood open.  
16. Replace any worn or damaged pump components  
immediately.  
PAGE 8 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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IMPORTANT HAND SIGNALS  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 9  
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GENERAL INFORMATION  
The following operating principles and operating suggestions  
should prove helpful in the successful operation of your  
concrete pump.Your new“small line”concrete pump has been  
designed to give you many years of service when operated  
properly. A study of the following paragraphs is important to  
the successful operation of your new Direct-flo Concrete  
Placer.  
2. As a general rule, the use of approximately six sacks of  
cement, 70% washed concrete sand and 30% #4 pea gravel  
per yard of concrete will result in a pumpable mix. The ideal  
nature of sand and rock in certain areas may permit you to  
increase the percentage of rock or adjust the mix considerably  
to meet the job requirements. When possible, you may  
experiment with various mixes in your area to determine the  
degree of versatility of the Direct-flo Pump.  
All concrete pumps require a high level of operator skill and  
more frequent service than most of the other construction  
equipment. The highly abrasive nature of concrete under  
pressure makes it extremely important that expendable wear  
components be inspected at regular intervals between jobs  
to prevent having to replace these items during a pour.  
Experience has proved that inconsistency of batched concrete  
mixes and frequent moving of the line requires the operator to  
be readily available at all times during pumping to stop the  
pump and prevent abuse to the unit which may occur if  
unexpected blockages develop.  
3. Uniform gradition of the washed concrete sand and the 1/2”  
minus aggregate along with sufficient cement content and  
water are important to a successful pump operation.  
4. A recommended pumpable mix design would be 70% sand  
and 30% aggregate-cement content to be a minimum of 6  
sacks. (564 lbs.)  
NOTE; Your local sand and rock engineers will give you the  
s.s.d. weights of sand and rock required in your local area  
which will yield one cubic yard per the above recommendation.  
SAMPLE DESIGN MIX  
6 1/2 sacks cement (611 lbs.)  
1800 lbs. washed concrete sand  
1000 lbs. pea gravel  
PUMP MIX GUIDELINES  
When ordering concrete, be certain to advise the concrete  
supplier that you require a “pump mix”.The Direct-flo manifold  
will pump a wide variety of materials, but certain basic  
principles must be followed to assure successful pumping, as  
follows:  
230 lbs. water  
5. Test laboratory data has proven in many areas that the  
above mix guidelines have produced concrete rated at 3000  
psi (28 day test) and upwards of 5000 psi with an increase in  
cement.  
1. Generally speaking, the washed concrete sand and #4  
aggregate (pea gravel) should conform to A.S.T.M. standards  
in regard to sieve analysis. Sands in some areas are washed  
clean of the #100 and #200 mesh fines, which results in  
separation and jamming in the manifold while pumping under  
pressure. If this condition develops, check with your concrete  
suppliers engineers and get their recommendations for  
supplementing the lack of the fines.The use of locally accepted  
ad-mixs may be required. (For example, Pozzolith, Bentonite  
Clay, Plastiments, etc.) When properly prescribed, additives  
form the plastic paste sometimes necessary to hold the  
cement and aggregate together.NOTE:If jamming conditions  
in the pump or hose occur for any reason at all, do not attempt  
to use more power to correct the condition. Determine the  
cause of jamming, correct it and resume pumping. Trying to  
force material through under jammed conditions may result in  
damage to the drive system, thus voiding any warranty  
services.  
6. In some areas where the gradation of sand and rock is  
ideal and sufficient cement is used along with admixtures, the  
Mayco small line concrete pump will handle up to a 50-50  
ratio of sand and rock.  
7.When the mix is designed for wet gunning applications, it is  
normal to increase the cement (up to 7.5 or 8 sacks) and  
change the sand to rock ratio to 85% sand and 15% rock.  
8. The Mayco concrete pump will valve efficiently when using  
cellular-foam concrete mixes upwards of 70 lbs. per cubic foot  
wet density. (Below 70 lbs. materials (roof decks) the valving  
becomes inefficient.)  
PAGE 10 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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NOTE PAGE  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 11  
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C-30HD — HOW IT WORKS  
The return spring which is installed on the rocker arm, is  
installed to eliminate shock and stress between the cam roller  
and the cam weldment when the pump is in operation. If the  
return spring is removed or replaced for any reason, maintain  
the backing plate dimension of 3” as shown on Figure 3, to  
produce the proper pre-loading of the spring for a smooth  
performance.  
The Mayco concrete pump has one main pumping piston  
which is valved by means of two ball checks. (A inlet, and B  
outlet.)  
The secondary piston is used as a compensator piston to  
smooth out the pulsations of a single piston action. Note:The  
compensator will not start operating until material is pumped  
into the line and back pressure develops.  
Figure 1- The pumping cylinder retracts drawing the material  
past the ball (A) and filling the cylinder.The compensator piston  
is pumping the material out to the nozzle and causing ball (B)  
to seat preventing the material from returning to the pumping  
cylinder intake.  
The compensator spring, which is installed on the  
compensator piston rod, deflects with each piston stroke.This  
“spring cushion”, in conjunction with the cam profile, produces  
and uninterrupted smooth flow of material under average  
pumping conditions.  
Figure 2- The pumping piston is forcing the material past ball  
(B) and out to the nozzle, also seating ball A so that the material  
will not flow back to the hopper. This action also fills the  
compensating piston for the next stroke.  
An automatic, centrifugal clutch is installed to engage and  
disengage the pumping action without stopping or starting the  
engine. The centrifugal clutch is set at 1100 R.P.M. release.  
The engine idle speed is approximately 750 R.P.M.; therefore,  
the clutch is completely disengaged at idle.The throttle settings  
while pumping should always maintain an engine R.P.M. high  
enough to prevent the clutch from slipping and burning the  
clutch lining.  
Figure 3- Shows the relationship between the return spring,  
the compensator spring and the rocker arm to maintain a  
smooth performance. Do not tighten the bolt (Item 1)  
completely, the rod end must be able to move.  
PAGE 12 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — HOW IT WORKS  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 13  
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C-30HD OPERATING INFORMATION  
OPERATING SUGGESTIONS  
E. When the pumping job requires a stiffer mix, the following  
method is suggested for starting: Take a water hose with a  
nozzle on it and apply water with a fine spray to the concrete  
as it comes down the redi-mix chute into the pump hopper  
after the slurry procedure is completed and you are ready to  
start pumping.Using this procedure will make it easier to pump  
through the clean hose. Note: Once the concrete has reached  
the end of the hose, do not apply any more water in this manner  
as this procedure is used on the start only.  
1. A well-planned location of the pump and routing of the hose  
before starting a pour may save subsequent moves  
throughout the job.  
2. Before concrete is discharged into the hopper, it is  
suggested that 3 to 4 gallons of water be sprayed into the  
hopper, followed by approximately 5 gallons of a creamy  
cement and water slurry (1/2 bag of cement to 5 gallons of  
water). This procedure lubricates the hose and prevents  
separation and blockages in the hose. Note: Getting the  
concrete to flow through the hose at the start of the pumping  
cycle can be one of the most critical operations of the pour.  
(Manually operate the throttle - when starting. NOT  
REMOTELY)  
F. Hose sizing is very important: We strongly recommend on  
harsh mixes, vertical pushes, stiff concrete, shotcrete, long  
pushes, that a 2 1/2” line be used as far as possible. The  
advantages of using the 2 1/2” line are improved pumpability,  
less pumping pressure and less wear on the pump.  
5. Following the pump operation, proper wash out of all  
materials or “build-up” within the pump manifold and hoses  
will prevent problems when starting the next job.  
3. It is important that once the slurry procedure is completed,  
and you have started concrete flowing through the hose, do  
not stop the pour until all the slurry is pumped out and the  
concrete has reached the end of the hose. The only time to  
stop the pump at the start is if a blockage occurs.  
6. A thorough inspection of the drive components and greasing  
of all bearings after each job will ensure adequate lubrication  
and service to the pump which is normally operating in wet,  
gritty conditions. Note: Over-greasing any bearing on your  
Mayco pump will not damage the bearing.  
4. When the pump is stopped for any reason during a pour;  
e.g., moving hose, waiting for redi-mix truck, the following  
suggestions are offered:  
7. Warning: Common sense tells us that if  
you drive a truck into a brick wall, something  
is going to be damaged.The same holds true  
with your concrete pump. If you repeatedly  
pull the throttle all the way out and try to force  
A. Leave the hopper full of concrete at the time of shutdown. It  
is important not to let the redi-mix driver wash too much water  
into the hopper, as this could cause separation of the  
concrete in the hopper.  
B. If the shutdown period exceeds 2 to 3 minutes, turn off the  
engine so the vibration does not separate the mix in the hopper  
which can cause a blockage in the manifold when the pump  
is started.  
your pump to push through blockages due to separation of  
material in the hose or manifold, you will soon have  
breakdowns and costly repairs which are not covered under  
warranty.If a blockage occurs, find where it is and clear it before  
further pumping. Do not use horse-power; it will only make it  
worse.  
C. If it is necessary to wait 10 minutes or more for another load  
of concrete, it is wise to start the pump and pump 6 or 8 strokes  
every 5 minutes to prevent setting of the mix in the system. If  
waiting time is excessive, it would be wise to wash out the  
pump and hoses and start over when the new truck arrives.  
8. Warning: It will be necessary at times to  
move your pump from one job site location  
to another. Before moving the pump, make  
D.When pumping stiff mixes and there is waiting time between  
redi-mix trucks, it is advisable to add some water to the last  
hopper of material and “hand mix” to ensure an easier start  
with the following load.  
sure to pump the remaining concrete out of  
the hopper. Moving the pump with a full  
hopper of concrete can cause severe damage or breakage  
of the axle and axle springs, excess strain and pressure on  
the hub and bearing assembly.  
PAGE 14 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD OPERATING INFORMATION  
PUMPINGTIPS ANDTROUBLE SHOOTING  
5. Damaged hoses with internal restrictions can cause  
blockages.  
1. The effects of heat and excessive time on concrete: Hot  
concrete, commonly referred to as a hot load, is concrete that  
has been in the redi-mix truck in excess of 2 to 3 hours. On a hot  
day, this amount of time is even less.A brief explanation of why  
heat and time affect concrete:Concrete starts setting by drying  
up through a chemical reaction.The catalyst to this reaction is  
heat.When pumping a hot load, it is important to remember that  
when you have to stop pumping for any reason, add water to  
the concrete in the hopper and hand mix and move concrete in  
the hose every 5 minutes. If the shut down time becomes too  
long, wash out immediately.  
6. If a blockage occurs in a hose, “walk the hose” until you find  
the point of trouble.The hose will be soft immediately past the  
blockage. If this happens at the start, disconnect the hose at  
the first coupling past the blockage. Elevate the hose at that  
point with the blockage area hanging down. Note: Use  
extreme care! The hose line is under pressure and can  
cause serious injury. Using a hammer, you can pound the  
down-stream edge of the packed area until it is free to flow.  
Shake all of the sand and gravel out to the end of the hose.  
Before reconnecting the hose, start the pump and run a small  
amount of concrete out to the end of the hose.This will assure  
that all of the separation is out of the hose.  
2. ADMIXTURES: A remixtures that are designed into the  
concrete mix by the redi-mix company or an architectural  
engineering company. This section lists common admixtures  
and a brief explanation of their function.  
7. The manifold is plugged if the volume at the discharge end  
of the hose stops, and the hose is soft. The drive belts will  
start to slip and the engine will lugdown.  
A. POZZOLITH 300 R or the equivalent acts as a water  
retarder and a lubricant. On a lean mix, long pushes, stiff  
mixes, and vertical pushes, Pozzolith 300 R helps  
pumpability.  
To clear a plugged manifold, great care must be taken as a  
dangerous condition will exist due to pressure build-up inside  
the manifold.  
B. MBVR, air entraining, acts as a lubricant.  
Follow these instructions carefully:  
C. CALCIUM CHLORIDE, commonly referred to as C.C., is  
used as an accelerator. When pumping a load with calcium  
chloride, it is recommended that you wash out if the waiting  
time between delivery trucks becomes too long.  
7.1 Stop the pump. Switch off the engine.  
7.2 DO NOT open any of the delivery system joint clamps.  
7.3 The senior experienced operator must warn all others to  
stand at least 20 feet away from the machine and turn their  
heads away from the manifold.  
D. SUPER PLASTICIZERS, acts as an accelerator.The  
concrete will look very wet after the super plasticizer is  
added, but will begin to set up very fast. Wash out  
immediately if you do not have a truck waiting. Super  
plasticizers are used mainly on commercial jobs.  
7.4 The operator must position himself/herself away from the  
hinged side of the manifold.  
7.5 Wearing safety glasses, grasp the clamp arm weldment  
and carefully pull it open to the primary (safety) position.STOP  
count to 20.This will allow the pressure to release.  
E. RED LABEL, acts as a water retarder and an accelerator.  
Red label will be used mainly on commercial jobs.  
7.6 After the pressure has been released, open the clamp  
arm weldment and swing the hinged discharge cone open.  
F. FLY ASH, is used to help increase the strength of the  
concrete and decrease the cement content per yard. This  
is one of the most common admixtures used.  
7.7 Remove blockage with around a 2-foot length of reinforcing  
steel rod. Flush the manifolds with water. Make sure the (3” x  
2”) reducer is clear of any blockage before closing the  
discharge cone.  
NOTE: All admixtures will be shown on the redi-mix concrete  
ticket. Before starting the pumping job, ask the driver of the  
redi-mix truck to see the concrete ticket and note the  
admixtures that exist and take the proper action.  
7.8 After the blockage has been cleared and the pump  
manifold has been thoroughly flushed with water, close the  
hinged discharged cone and lock into place.  
3. When pumping long distance or pumping stiff mixes, you  
can expect a drop in volume compared to shorter lines and  
wetter mixes due to the change in valve efficiency or cavitation.  
7.9 Before reconnecting hose to the reducer, start the engine  
and pump two or three shovels of concrete through the  
reducer.This will insure that all the blockage has been cleared.  
4. Leaking manifold seals or hose coupling gaskets which leak  
water can cause separation and subsequent jamming at that  
point.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 15  
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C-30HD OPERATING INFORMATION  
7.10 Shake out around 2 feet of concrete before reconnecting  
hose to pump. After this is done, connect hose to pump and  
resume the pumping operation.  
10. When pumping vertically:  
A. When pumping vertically up the side of a building, above  
40 feet, we would recommend the installation of steel pipe  
securely fastened at intervals as necessary to support the  
pipe. Ninety degree, long radius pipe sweeps should be  
installed at the top and bottom of the steel line. Use a 25 ft.  
hose, or short section, off the pump; and for the balance of  
the horizontal distance to the vertical line, use steal pipe.This  
type of installation has been satisfactory on many jobs being  
pumped in excess of 100 feet high. Line pressures are always  
less using steel pipe as compared to hose.  
8. If it is necessary to wait 1/2 hour or more for another load of  
concrete, it is advisable to consider the factors affecting the  
concrete that is already in the pump and system. To prevent  
setting of the mix in the system: 1) how old is the concrete ? 2)  
is there an accelerator, calcium chloride, red label, etc., in the  
concrete ? 3) the temperature of the day, 80, 90, degrees? 4)  
how much system you have out and how stiff was the mix you  
were pumping? If, for any reason, the mix should set up in the  
system, the following procedure is suggested:  
B.When pumping vertically, using all hose, it is recommended  
not to go higher than 50 feet with hose. The hose should be  
tied off at intervals of 10 feet, if possible. Special attention  
should be given when tieing the hose off at the top as the  
hose will have a tendency to stretch when filled with concrete.  
This will increase the possibility of a blockage at the point where  
the hose is tied off. To avoid this, a long radius of 90 degree  
elbow is recommended. The suggested place to tie off is on  
the hose, under the clamp. Note: It is strongly recommended  
that pipe be used on all vertical pumping for safety and  
convenience.  
Note: Use extreme care! The hose is under pressure!  
Disconnect the hose from the pump and wash the pump out  
immediately.Reconnect the hose and fill the hopper with water.  
DO NOT try to push all the concrete out of all of the hose line  
at one time. For example: If you had 200 ft. of system out, you  
would disconnect each hose. Clean it out by pushing water  
through the first hose off the pump, then continue progressing  
through all the hoses, until all the system is clean. If waiting  
time is excessive, it would be wise to wash out the pump and  
hoses and start over when the new truck arrives.This can be  
avoided by being attentative to the pump and system, also  
taking into consideration the above 4 factors affecting the mix.  
If it is absolutely necessary to use hose, then use this section  
as a guide.  
9.“Down-hill pumping”can be difficult on some jobs.The slurry  
procedure would be the same as explained on the pages titled  
Operating Suggestions. It is suggested that a sponge 2”x 4”x  
6” be placed in the hose before the start of pumping. Wet the  
sponge before placing it in the hose.The reason for using the  
wet sponge is to keep the slurry from running too far ahead of  
the concrete and so reducing the possibility of separation.  
When the pump is stopped, the material can flow slowly down,  
due to gravity, and cause the hose to collapse.When pumping  
is resumed, you can expect a blockage at the point of hose  
collapse. To prevent this from happening, the hose can be  
“kinked off” at the discharge end when the pump is stopped  
to prevent the gravity flow of the material in the hose.The use  
of stiffer mixes when pumping down-hill will decrease gravity  
flow of the material in the hose and will assure a smoother  
operation between the cam roller bearing and cam plate. As  
with any job, make sure that the hose and the couplings are in  
good workable shape.  
11.If the volume at the end of hose starts to decrease gradually  
and eventually almost stops, it is quite likely that the valve  
seats have had excessive wear and need replacement. Once  
they have reached a certain wear point, they may “channel  
out” rapidly and material will reciprocate past the ball on each  
stroke.The hollow steel ball should be replaced when it starts  
to show dents or appears to be badly worn. Sand and  
aggregate materials in some areas are extremely sharp and  
hard and therefore highly abrasive. Under these conditions  
when pumping stiff mixes, or to high elevations which cause  
line pressures, it will be noted that valve components may  
have short wear life. If this condition exists, it is advisable to  
remove the manifold only, and inspect the lower seat at the  
end of each day. If it appears that the seat is beginning to  
“channel out, replace before starting the next day’s pour. The  
upper valve seat can be inspected after each washout by  
running your finger around lower edge of seat where the ball  
makes contact.You can reach this from the inside of the hopper.  
Be sure that the engine is turned off.  
PAGE 16 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD OPERATING INFORMATION  
CLEAN UP PROCEDURE  
PART A  
12. Slight pulsation of the hose will always be noticeable near  
the pump. Excessive pulsation of the hose near the pump is  
normally due to higher than average line pressures caused  
by stiff, harsh mixes, or extremely long pumping distances.  
The use of 2 1/2” I.D. hose in these extreme cases reduces  
line pressures or the addition of slight amounts of water to the  
mix, if permissible, will permit easier pumping. The use of  
certain pumping admixtures may help.  
1. Ensure that there is no blockage in the hose and line (See  
Page 15, Para.6) or in the manifold (See Page 15, Para.7).If a  
blockage exists, clear it as it dictates how the machine will  
pump the next time it is used. At the end of every pour, or  
because of long delays during a pour, the pump and delivery  
system must be thoroughly cleaned by removing all concrete  
material.  
If excessive pulsation exists in the hose, it is advisable to use  
burlap or some means of wear protection under the hose at  
points where the hose may wear through the outer cover; e.g.  
over forms, steel or sharp curbs.  
2. Proper wash out of all materials or build up within the pump  
manifold and hoses following the pumping operation will  
prevent problems when starting the next job. After completion  
of the pour, pump the remaining concrete in the hopper  
through the discharge line.  
13. If the cam roller does not ride on the cam profile smoothly,  
it may be caused by insufficient line back-pressure; e.g., a  
wet mix with only 50 feet of hose.Add more hose as necessary.  
It can also be caused by cavitation or the passing of over-  
sized aggregates through the valving, causing it to skip.  
3. Note:To avoid the possibility of separation during clean-up,  
do not pump the concrete below the inlet ball in the hopper. It  
is best to leave approximately 3 to 4 inches of concrete above  
the inlet ball.  
14.When using Snap-Joint couplings with gaskets to join hose,  
see that they are washed clean after each job. Keeping the  
hose ends clean (heavy duty) is very important for the best  
job setup.A thin coat of grease on the rubber gasket or dipping  
both coupling and gasket in water before coupling the hose  
will make for easier installation.  
4.Turn the pump engine off before filling the hopper with water.  
Engine vibration at idle may “separate” material in the hopper,  
causing jamming in manifold when pumping is resumed.  
5. Fill hopper with water and resume pumping. The water will  
push the concrete through the line.When the water runs clear  
at the end of the hose, disconnect lines and shake out all the  
sand and sediment so the lines will be clean for the next pour.  
15. All new pumps are “water pressure tested” at the factory  
before shipment.This procedure permits a thorough inspection  
of entire drive system and valving under simulated full load  
conditions. The pump owner can do the same by attaching  
an adaptor to couple to the end of the discharge cone; e.g.,  
the use of a standard 2” pipe cap with a 3/8” hole drilled in the  
center , screwed on to the end of the hinged cone or reducer  
at the pump. Fill the hopper with water after making sure that  
all sand and rock have been removed from the manifold.  
Operate the pump at full throttle and the 3/8” diameter hole  
restriction will create sufficient back-pressure to make a  
thorough inspection of all moving parts.  
6. It is important that the hinged discharge cone on the pump  
manifold be opened and all remaining concrete (rock and  
sand) be thoroughly washed out.This must be done after each  
job to prevent concrete build up in the discharge manifolds  
and 3” discharge elbow.  
16.Before starting the pumping operation, the following check  
list procedure should be followed:  
1. Check the engine oil.  
2. Check the oil reservoir of the lubrication system to make  
sure that it is full.  
3. Inspect the chain and belt adjustment.  
4. Check the cam oiler.  
5. Start and run the engine a minimum of five minutes before  
starting the pumping operation.  
Note:When the redi-mix truck arrives, it is always a good idea  
to check the concrete ticket and make sure you have the  
proper mix design.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 17  
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C-30HD OPERATING INFORMATION  
PART B  
This section will explain the recommended procedure for using  
a sponge to clean out the lines. After completion of the pour,  
pump the remaining concrete in the hopper through the  
discharge line. Using a shovel, clean the sides of the hopper.  
(Note:The pump engine should be turned off, as explained in  
Part A of the Clean Up Procedure.) After the sides of the hopper  
have been cleaned, add a small amount of water to the  
remaining concrete in the hopper and hand mix.  
Start the pump engine and pump the hopper all the way down.  
Disconnect the hose from the pump.Fill the hopper with water  
and pump the remaining concrete out of the pump. Open the  
hinged discharge cone and thoroughly wash out all remaining  
concrete (sand-sediment) from the cone and pump manifolds.  
Close the discharge cone and lock in place. Take a sponge  
(2”x 4”x 6”) and soak it with water. Take the hose that is  
disconnected from the pump and shake out the concrete so  
that about 2 feet of it is clear. Insert the sponge into the hose.  
Reconnect the hose to the pump. Fill the hopper with water  
and resume pumping. Run the pump approximately half  
throttle. The sponge will be discharged at the end of the line  
followed by clear water. At this point, the pump and lines will  
be completely clean and ready for the next job.  
WARNINGS  
1. Never put your hands, or any other parts  
of your body, in the hopper when the engine  
is running.  
2. Never use muriatic acid to clear the pump.  
Acid will dissolve the chrome finish on the  
pumping cylinder.  
3. When using a clean-out hook to clean out back into the  
redi-mix truck, use a safety chain to secure the clean-out hook  
to some solid part of the redi-mix truck to prevent the hook  
from jumping off the redi-mix truck’s hopper. Run the pump at  
half throttle.  
4. Never use air to clean out the lines.  
Always think safety first!  
PAGE 18 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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CONCRETE MIX INFORMATION  
CONCRETE MIX DESIGNS-SCREEN ANALYSIS-  
TERMINOLOGY  
DEFINITIONS  
ONE SACK CEMENT (U.S.)-94lbs.(42.58 KG)  
The following information has been prepared to assist in the  
selection of concrete mix designs in certain areas where the  
use of concrete pumps is a new industry.  
S.S.D.-Saturated Surface Dry: Meaning sand particles may  
be saturated with moisture but there is no free water on the  
surface.  
The result of years of experience by many concrete pump  
users and aggregate suppliers has proven the importance of  
certain requirements necessary to successful concrete  
pumping. The strength and quality of the concrete is relative  
to the cement/water ratio and the type of gradation of the  
aggregates used.  
OVEN DRY-meaning all the moisture is removed from the sand  
particle.  
SLUMP-a measure of moisture consistency.  
W/C SAND-washed concrete sand.  
#4 GRAVEL or ROCK-3/8”PEA GRAVEL (1/2” MINUS)  
#3 GRAVEL or ROCK-3/4” rock (1” minus)  
Special emphasis is given to the gradation of the fine  
aggregates, coarse aggregates sand and used in all pump  
mixes. Generally speaking, if the screen analysis of the local  
sand and rock conform to the A.S.T.M. specifications shown  
on Pages and 13 and the proper ratio of sand and rock are  
used in the mix, you can expect a pumpable mix.  
POZZOLITH-Master Builders Admixture -(Pozz)  
P.S.I.-compressive strength (Pounds per Square Inch)  
DEFICIENCIES IN SIEVE ANALYSIS of AGGREGATES  
The uniform gradation of sand and aggregate in the concrete  
mix is extremely important in all pumping operations.It is highly  
possible that the lack of certain sieve sizes may prevent  
pumpability. In some areas it may be necessary to make up  
these deficiencies by the addition of “blending sands” to the  
local sand.  
If difficulty is experienced in pumping the mixes shown on  
Pages 11 and 12, consult your local aggregate supplier with  
this information and make the necessary adjustments.  
GENERAL RULE-supplement to improve pumpability.  
FLY ASH-use up to 15% of cement weight.  
POZZOLIN-use up to 13% of cement weight.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 19  
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CONCRETE MIX INFORMATION  
The following information has been extracted from actual testing laboratory reports. The purpose of this printing is only to help  
create a better understanding of the importance of uniform gradation and proportioning of materials which affect pumpability of  
concrete mixes.These weights and proportions illustrate that when the sieve analysis is ideal, the sand/rock ratio can be adjusted  
(65% sand 35% rock) and pumpability should be excellent.  
EXAMPLE #1 (A CaliforniaTest Lab. Report)  
JOB: Building Foundations (Water Project)  
Sacks per cu./yd.  
6.5 designed for 2,500 lbs. in 28 days  
Gallons per sack  
7.1  
1.3  
Washed Sand-#200 wash  
Organic matter-OK  
Specific gravity (SSD)  
Sand-2.58; Pea Gravel-2.60  
Sieve analysis-percent passing  
Material  
1.5” 1”  
3/4”  
3/8”  
100  
100  
100  
#4  
#8  
#16  
#30  
#50  
#100  
4.0  
#200  
1.1  
W.C. Sand  
Pea Gravel  
% Comb.  
99.7  
3.0  
66  
79.1  
60.4  
36.5  
14.3  
51  
39  
23  
9
3
1.0  
DESIGN FOR ONEYARD OF CONCRETE (SATURATED & SURFACE DRY):  
Absolute volume of aggregate in one cu. yard:  
Specific gravity of aggregates in one cu. yard:  
Weight of aggregates in one cu. yard batch:  
17.78 cu. ft.  
2.58  
2850 lbs.  
%
BATCH  
SPEC.GRAVITY  
ABS.VOL.  
11.56  
W.C. Sand  
PEA GRAVEL  
WATER 46 gal.  
CEMENT 6.5 sk.  
TOTAL  
65  
35  
1800  
1000  
1
2.58  
2.60  
6.22  
611  
27.00  
ADMIXTURE:  
SLUMP  
None  
4”  
REMARKS  
NOTE:  
This mix designed for pumping  
Due to the availability of well-graded sand as shown in the above sieve analysis,  
this mix pumped very successfully.  
PAGE 20 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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A.S.T.M.STANDARD SPECIFICATION FOR GRADING AGGREGATE  
Screen  
Size of Operating  
U.S.  
Percentage Passing  
(by weight)  
Metric  
FINE AGGREGATE: Referred to as washed concrete sand.  
3/8”  
#4  
3/8”  
9.51mm  
4.76 mm  
2.38 mm  
1.19 mm  
1.19 mm  
297 µ  
100%  
4760 micron  
2380 micron  
1190 micron  
590 micron  
297 micron  
149 micron  
95 to 100%  
80 to 100%  
50 to 85%  
50 to 85%  
10 to 30%  
2 to 10%  
#8  
#16  
#30  
#50  
#100  
149 µ  
3/8”(9.51 mm) PEA GRAVEL AGGREGATE: Referenced to as #4 Rock or Gravel or 1/2”minus (12.7 mm) size.  
1/2”  
3/8”  
#4  
1/2”  
12.7 mm  
9.51 mm  
4.76 mm  
2.38 mm  
1.19 mm  
100%  
3/8”  
85 to 100%  
10 to 30%  
0 to 10%  
0 to 5%  
4760 micron  
2380 micron  
1190 micron  
#8  
#16  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 21  
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CONCRETE MIX INFORMATION  
Consolidated Rock Products Co., Division of Tests  
3/8” Pea Gravel STANDARD PUMP MIXES (one-half inch minus)  
NOTE: All weights shown are one cubic yard with S.S.D. aggregates.  
CRP Mix Number  
Design Slump (in.)  
Cement, SACK.  
6004 .......................... 6005  
6” (15 cm) ............. 6”  
7.0 ................................ 7.0 ......................................7.0................................ 7.0  
.............................6006 .......................... 6007  
(15 cm) .................6” (15 cm) ............. 6”  
(15 cm)  
Cement, Lbs.  
658 (298 kg) ............ 658  
2031 (920 kg) ............ 2982  
677 (307 kg) ............ 693  
2708 (1227 kg) .......... 2775  
(298 kg) ................658 (298 kg) ............ 658 (298 kg)  
(943 kg) ................1879 (851 kg) ............ 1943 (880 kg)  
(314 kg) ................806 (365 kg) ............ 832 (377 kg)  
(1257 kg) .............2685 (1216 kg).......... 2775 (1257 kg)  
w/Con Sand (1 lb.)  
Gravel #4(9.51 mm)  
TOTAL AGGREGATE  
ADMIXTURE  
Pozzolight 311-1 lb.  
Water, Design (gals.)  
Mater, Max. (gals.)  
1.4  
(.63 kg)............. 1.4  
(.63 kg) .................1.4  
(.63 kg) ............. —  
50.0 (189 liters) ......... 53.0  
50.0 (189 liters) ......... 53.0  
(200 liters) ............50.0 (189 liters) ......... 53.9 (200 liters)  
(200 liters) ............53.0 (200 liters) ......... 53.0 (200 liters)  
NOTE: Multiply above kilograms and liters by 1.308 to obtain the proportions for one cubic meter of concrete.  
Consolidated Rock Products Co., Division of Tests  
3/8” Pea Gravel STANDARD PUMP MIXES (one-half inch minus)  
NOTE: All weights shown are one cubic yard with S.S.D. aggregates.  
CRP Mix Number  
Design Slump (in.)  
Cement, SACK.  
6000 .......................... 6001  
6” (15 cm) ............. 6”  
6.5 ................................ 6.5 ......................................6.5................................ 6.5  
.............................6002 .......................... 6003  
(15 cm) .................6” (15 cm) ............. 6”  
(15 cm)  
Cement. Lbs.  
611  
2062 (934 kg) ........... 2112  
687 (311 kg) ........... 704  
2749 (1245 kg) .......... 2816  
(276 kg) ........... 611  
(276 kg) ................611 (276 kg) ............ 611 (276 kg)  
(957 kg) ................1924 (872 kg) ............ 1971 (893 kg)  
(319 kg) ................825 (374 kg) ............ 845 (383 kg)  
(1276 kg) .............2749 (1245 kg).......... 2816 (1276 kg)  
w/Con Sand (1.1 lb.)  
Gravel #4 (9.51mm)  
TOTAL AGGREGATE  
ADMIXTURE  
Pozzolight 311-1.3lb.  
Water, Design (gals.)  
Mater, Max. (gals.)  
1.3  
(.59 kg) ............. 1.3  
(.59) ......................—  
50.0 (189 liters) ......... 53.0  
50.0 (189 liters) ......... 53.0  
(200 liters) ............50.0 (189 liters) ......... 53.9 (200 liters)  
(200 liters) ............53.0 (200 liters) ......... 53.0 (200 liters)  
NOTE: Multiply above kilograms and liters by 1.308 to obtain the proportions for one cubic meter of concrete.  
PAGE 22 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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SLUMPTEST PROCEDURE  
1.To obtain a representative sample, take samples at three or  
more regular intervals throughout the discharge of the mixer  
or truck. DO NOT take samples at the beginning or end of the  
discharge.  
2. Dampen the inside of the cone and place it on a smooth,  
moist, nonabsorbent, level surface large enough to  
accommodate both the slumped concrete and the slump cone.  
Stand on the “foot pieces” throughout the test procedure to  
hold the cone firmly in place.  
3. Fill the cone 1/3 full by volume and rod 25 times with a 1/2”  
dia x 24” lg. bullet-pointed steel rod. (This is a specific  
requirement which will produce non-standard results unless  
followed exactly.) Distribute rodding evenly over the entire cross  
section of the sample. (See figure A.)  
4. Fill cone another 1/3 which will make the cone 2/3 full by  
volume. Rod this second layer 25 times with the rod penetrating  
into, but not through, the first layer. Distribute rodding evenly  
over the entire cross section of the layer. (See figure B.)  
5. Fill cone to overflowing. Rod this layer 25 times with rod  
penetrating into but not through, the second layer. Distribute  
rodding evenly over the entire cross section of this layer. (See  
figure C.)  
6. Remove the excess concrete from the top of the cone, using  
the tamping rod as a screed. (See figure D.)  
7. Lift the cone vertically with a slow even motion. Do not jar  
the concrete or tilt the cone during this process. (See figure  
E.) Invert the withdrawn cone, and place it next to, but not  
touching the slumped concrete.  
8. Lay a straight edge across the top of the slumped cone.  
Measure the amount of slump in inches from the bottom of  
the straight edge to the top of the slumped concrete at a point  
over the original center of the base (See Figure F).The slump  
operation must be complete in a maximum elapsed time of 1-  
1/2 minutes.Discard the concrete.DO NOT use it in any other  
tests.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 23  
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EXPLANATION OF CODE IN REMARKS COLUMN  
How to read the marks and remarks used in this parts  
book.  
Items Found In the “Remarks” Column  
Serial Numbers-Where indicated, this indicates a serial  
number range (inclusive) where a particular part is used.  
Model Number-Where indicated, this shows that the  
corresponding part is utilized only with this specific model  
number or model number variant.  
Items Found In the “Items Number”Column  
All parts with same symbol in the number column, , #,  
, belong to the same assembly or kit  
+, %, or  
*
I
NOTE  
If more than one of the same reference number is  
listed, the last one listed indicates newest (or latest)  
part available.  
NOTE  
The contents of this catalog are  
subject to change without notice.  
PAGE 24 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD SUGGESTED SPARE PARTS  
C-30HD Concrete Pump  
C-30HD Concrete Pump  
1 Units  
3 Units  
Qty.  
P/N  
Description  
Qty.  
P/N  
Description  
6 ...... EM14904 ..................... PISTON CUP KITS  
4 ...... EM18804 ..................... 4 1/2" STEEL BALL  
4 ...... EM14818 ..................... 4" STEEL BALL  
6 ...... EM14903 ..................... BALL STOP PIN KIT  
10 ...... EM18801 ..................... 0-RING MANIFOLD  
1 ...... EM14308 ..................... CHAIN  
2 ...... EM26313 ..................... HALF LINK  
2 ...... EM26314 ..................... MASTER LINK  
1 ...... EM14334 ..................... COMPENSATOR SPRING  
2 ...... EM14408 ..................... BRONZE RING  
2 ...... EM903092 ................... CAM ROLLER BEARING  
2 ...... EM14315 ..................... V-BELT  
10 ...... EM14904 ..................... PISTON CUP KITS  
10 ...... EM18804 ..................... 4 1/2" STEEL  
10 ...... EM14818 ..................... 4" STEEL BALL  
12 ...... EM14903 ..................... BALL STOP PIN KITS  
25 ...... EM18801 ..................... MANIFOLD O-RINGS  
3 ...... EM14308 ..................... CHAINS  
10 ...... EM26313 ..................... HALF LINK  
10 ...... EM26314 ..................... MASTER LINK  
2 ...... EM14334 ..................... COMPENSATOR SPRING  
4 ...... EM14408 ..................... BRONZE RING  
2 ...... EM903092 ................... CAM ROLLER BEARING  
4 ...... EM14315 ..................... V-BELT  
2 ...... EM14842 ..................... LOWER SEAT  
2 ...... EM14843 ..................... UPPER SEAT  
2 ...... EM26310 ..................... CLUTCH LINING  
10 ...... EM18409 ..................... O-RING  
6 ...... EM14842 ..................... LOWER SEAT  
6 ...... EM14843 ..................... UPPER SEAT  
3 ...... EM26310 ..................... CLUTCH LINING  
20 ...... EM18409 ..................... O-RING  
3 ...... EM207063 ................... FUEL FILTER  
3 ...... EM26746 ..................... OIL FILTER  
2 ...... EM20328TKIT ............. BEARING KIT  
2 ...... EM28004DD ................ REDUCER 3" x 2"  
2 ...... EM23946 ..................... 3" ELBOW  
2 ...... EM20763 ..................... FUEL FILTER  
2 ...... EM26746 ..................... OIL FILTER  
2 ...... EM20328TKIT ............. BEARING KIT  
1 ...... EM28004DD ................ REDUCER 3" X 2"  
1 ...... EM23946 ..................... 3" ELBOW  
2 ...... EM28904 ..................... 3" CLAMP  
4 ...... EM28904 ..................... 3" CLAMP  
4 ...... EM28904-1 .................. 3" GASKETS  
1 ...... EM14159 ..................... HOPPER SCREEN  
1 ...... EM14401 ..................... OIL PUMP  
1 ...... EM20709 ..................... SOLENOID  
2 ...... EM2074........................ THROTTLE LINKAGE  
10 ...... EM28904-1 .................. 3" GASKET  
2 ...... EM14159 ..................... HOPPER SCREEN  
2 ...... EM14401 ..................... OIL PUMP  
2 ...... EM20709 ..................... SOLENOID  
4 ...... EM20714 ..................... THROTTLE LINKAGE  
1 ...... EM14300 ..................... CAM  
1 ...... EM14801 ..................... T-MANIFOLD  
1 ...... EM14819 ..................... Y-MANIFOLD  
2 ...... EM14335 ..................... PISTON ROD  
1 ...... EM14205P ................... PLASTIC FUEL TANK  
1 ...... EM26788 ..................... REMOTE SWITCH  
1 ...... EM903176 ................... CONN. ROD BEARING  
1 ...... EM14305 ..................... CRANKSHAFT  
2 ...... EM14807 ..................... PUMP CYLINDER  
2 ...... EM18800 ..................... COMPENSATOR CYLINDER  
1 ...... EM14320A ................... CLUTCH  
NOTE  
Part number on this Suggested  
Spare Parts List may super cede/  
replace the P/N shown in the text  
pages of this book.  
2 ...... EM60HB ....................... CLUTCH DISK  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 25  
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C-30HD — CONTROL PANEL  
EM26733  
EM26739  
EM26735  
EM26753  
EM26736  
EM14730  
EM26789  
EM26732  
EM20708  
EM40711  
Before starting the engine, refer to the HATZ diesel or  
WISCONSIN air cooled engine manual for break-in  
instructions.  
4. THROTTLE-is a variable speed type control. Turning the  
throttle to the left unlocks it allowing the control to be pulled  
out to the desired speed. Once the desired speed has been  
reached, turning the throttle control to the right locks it in place.  
Note-always unlock the throttle control before it is pushed in  
because if this is not done first, possible damage could result  
to the locking mechanism.  
1. IGNITION-is a push/pull type control, to start the pump  
engine, the ignition control must be pulled out.  
2. CHOKE-when starting the cold engine, close choke by  
pulling choke control to extreme out position. Once engine is  
running, push choke control all the way in.  
5.TAIL LIGHT-pull turns on tail light and push turns it off.  
Before starting the concrete pumping procedure, let the engine  
warm up a minimum of five minutes. Also thoroughly read and  
understand the service manual for the C-30-HD concrete  
pump and become totally familiar with its operation before  
pumping.  
3. STARTER-push in to start engine.  
PAGE 26 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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NOTE PAGE  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 27  
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C-30HD — FRAME  
PAGE 28 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — FRAME  
C-30HD CONCRETE PUMP  
FRAME  
NO.  
1
2
3
4
5
6
6
PART NO.  
EM117  
EM923346  
EM406  
EM130  
EM20349  
EM14137  
EM25610  
EM508530  
EM20135  
EM14138  
EM14100  
EM14116  
EM963180  
EM923350  
EM104  
PART NAME  
BOLT, HEX 1/2-13X2  
WASHER, LOCK 1/2" ........................................ 4 ........................ REPLACES EM606  
NUT, HEX 1/2-13  
BOLT, SQ. HEAD 1/2-13X2 1/2"  
OILER PLUG  
FRONT STAND ASSY (OLD STYLE) ............... 1 ........................ PRIOR TO: 12-31-96  
SWIVEL JACK STAND....................................... 1 ........................ S/N 970101 & ABOVE  
SUPPORT SWIVEL JACK ................................. 1 ........................ S/N 970101 & ABOVE  
QTY.  
4
REMARKS  
4
5
1
6A  
7
SAFETY CHAIN  
1
2
1
4
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
32  
TEE HANDLE ASSY  
PUMP BOX ASSY  
JOURNAL BLOCK  
BOLT, HEX 3/4-10X5 ......................................... 4 ........................ REPLACES EM131  
WASHER, LOCK 3/4"  
BOLT, HEX 5/8-11X2  
WASHER, LOCK 5/8  
WASHER, WILLIAM 5/8  
TAIL LIGHT  
BOLT, HEX 3/4-10X3  
FRAME ASSEMBLY  
REAR STAND ASSY  
BATTERY HOLD DOWN  
WILLIAMS RE9B, 3/4X4  
WASHER, WILLIAM 3/4"  
NUT, HEX 3/4-10  
4
3
3
3
1
2
1
1
1
2
2
4
2
1
EM602  
EM620  
EM26536  
EM963614  
EM14142  
EM14136  
EM14711  
EM14165  
EM619  
EM968446  
EM145  
EM14119  
EM929028  
EM14120  
EM26117  
BOLT, HEX 1/4-20X11  
CHAIN GUARD  
HOOD LATCH.................................................... 2 ........................ REPLACES EM20107-1  
HOOD REST ASSY  
LUBE PLATE KIT ............................................... 1 ........................ NOTE: THIS KIT IS USED TO  
ENCLOSE THE FRAME TO CREATE A  
1
SPLASH TYPE LUBRICATION SYSTEM.  
(CONTACT FACTORY FOR DETAILS)  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 29  
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C-30HD — GASOLINE ENGINE CONTROL  
3#  
6A  
35  
PAGE 30 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — GASOLINE ENGINE CONTROL  
C-30HD CONCRETE PUMP  
GASOLINE ENGINE  
NO.  
1
2
3
4
5
6
6A  
7
PART NO.  
EM147  
EM923346  
EM406  
EM14705  
EM20720  
EM14710  
EM509755  
EM140  
EM20705  
EM968435  
EM600  
PART NAME  
BOLT, 1/2-13X2.1/2"  
WASHER, LOCK 1/2" ................................ 4 ............. REPLACES EM606  
QTY.  
4
REMARKS  
NUT, HEX 1/2-13"  
POSITIVE CABLE  
NEGATIVE CABLE  
BATTERY 12V  
BATTERY BOX  
BOLT, 1/4-20X5/8"  
RELAY  
4
1
1
1
1
2
1
S/N ABOVE 980401  
8
9
HEX NUT, 1/4-20"...................................... 2 ............. REPLACES EM400  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
WASHER, LOCK 1/4"  
BOLT, 3/8-16X1.1/4"  
WASHER, LOCK 3/8"  
NUT, HEX 3/8-16  
LINKAGE  
2
1
1
1
1
EM123  
EM612  
EM968009  
EM20714  
EM924028  
EM979  
EM26792  
EM977  
EM40711  
EM946  
EM26736  
EM978  
EM980  
EM976  
EM20701  
EM26788  
EM26793  
EM20713  
PIN, COTTER 3/32X7/8" ........................... 2 ............. REPLACES EM707  
DECAL, STARTER  
100 FT. EXTENSION  
DECAL, CHOKE  
3 WAY SWITCH  
DECAL, REMOTE CONTROL  
STARTER  
DECAL,TAIL LIGHT  
DECAL, THROTTLE  
DECAL, IGNITION  
ENGINE 30 HP WISE VH4D  
REMOTE CORD ASSY  
ADAPTER  
1
1
1
1
1
1
1
1
1
1
1
1
1
EXTENSION  
29  
30  
EM20709  
EM20704  
EM14728  
SOLENOID  
CLAMP BRACKET ASSY  
SOLENOID ASSY COMLETE ................... 1 ............. INCLS. ITEMS W/  
1
1
*
*
31  
32  
33  
EM20711  
EM20710  
EM20709-2  
SOLENOID SPRING  
SOLENOID PLUNGER  
RUBBER BOOT  
1
1
1
*
*
*
*
34  
35  
EM456  
EM16754  
NUT, NYLOCK 5-40  
SWITCH  
1
1
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 31  
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C-30HD — DIESEL ENGINE CONTROL  
PAGE 32 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — DIESEL ENGINE CONTROL  
C-30HD CONCRETE PUMP  
DIESEL ENGINE CONTROL-C-30HD  
NO.  
1
2
3
4
5
6
7
PART NO.  
PART NAME  
QTY.  
REMARKS  
EM968011  
EM923035  
EM963692  
EM621  
EM20733  
EM620  
EM176  
EM138  
EM612  
EM14602  
EM20791  
EM175  
EM20719  
EM16707  
EM20721  
EM20735  
EM20734  
EM20790  
EM20790-5  
EM601  
NUT, LOCK 1/2-13 .................................... 4 ............. REPLACES EM404  
WASHER, FLAT 1/2” .................................. 4 ............. REPLACES EM609  
BOLT, 1/2-13X1.1/2” .................................. 4 ............. REPLACES EM110  
WASHER, WILLIAM 1/2”  
DIESEL ENGINE, HATZ Z790  
2
1
WASHER, PLAIN 5/8 ................................. 4 ............. REPLACES EM14347  
BOLT SOCKET HD, 3/8-16X1.1/4”  
BOLT, HEX 3/8-16X1  
WASHER, LOCK 3/8”  
BRACKET ASSY  
CONTROL BOX  
BOLT SOCKET HD, 3/8-16X1.1/4  
BATTERY 12V  
GROUND CABLE  
POSITIVE CABLE  
EXHAUST CLAMP  
EXHAUST ELBOW  
LINKAGE ASSY  
SPRING  
LOCK WASHER  
2
3
2
1
1
2
1
1
1
1
1
1
1
2
1
1
2
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
REPLACES EM176847  
EM20761  
EM20758-1  
EM272  
YOKE BAR  
YOKE SUPPORT  
BOLT, ALLEN HEAD 8X30MM  
CONTROL CHAIN  
ENGINE CONTROL .................................. 1 ............. REPLACES EM20730  
INLINE FILTER  
WASHER, FLAT 1/2” .................................. 2 ............. REPLACES EM609  
REMOTE CONTROL  
NUT, LOCK 1/2-14 .................................... 1 ............. REPLACES EM26789-3  
CONTROL BRKT.  
RECEPTAGLE  
BOLT, ALLEN HEAD 12X25MM S.H.  
SOLENOID  
BOLT, 1/4-20X3/4 ...................................... 4 ............. REPLACES EM112  
RETURN SPRING ..................................... 1 ............. REPLACES EM20728  
WASHER, LOCK 1/4  
CORD ASSY, 100 FT.  
ADAPTER FOR CORD  
ROD  
EM20731  
EM26732  
EM20763  
EM923035  
EM26788  
EM940062  
EM20727  
EM26789  
EM146  
EM20709  
EM963550  
EM16730  
EM600  
1
1
1
1
2
1
4
1
1
1
EM26792  
EM26793  
EM20760  
NOTE: EffectiveS/N971001  
The throttle control has been updated  
— Consult factory for part numbers.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 33  
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NOTE PAGE  
PAGE 34 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — MANIFOLD ASSEMBLY  
Note: EXPLODEDVIEW OF  
PAGES 34 & 35  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 35  
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C-30HD — CONCRETE DELIVERY  
PAGE 36 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — CONCRETE DELIVERY  
C-30HD CONCRETE PUMP  
CONCRETE DELIVERY  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
281  
281  
282  
283  
283  
284  
285  
286  
287  
288  
289  
290  
291  
292  
293  
294  
295  
296  
297  
297  
298  
298  
299  
299  
300  
301  
302  
303  
304  
305  
306  
307  
EM23837  
EM28004-DD  
EM963180  
EM14809  
EM14850  
EM968446  
REDUCER, 3X2 .......................................................... 1 ....................PRIOR TO JULY 1, 1990  
REDUCER, 3X2 .......................................................... 1 ....................AFTER JULY 1, 1990  
BOLT, 3/4-10X5 .......................................................... 2 ....................REPLACES EM131  
EXHAUST GATE ......................................................... 1 ....................PRIOR TO JULY 1, 1990  
EXHAUST GATE ......................................................... 1 ....................AFTER JULY 1, 1990  
NUT, HEX 3/4-10 ........................................................ 2 ....................REPLACES EM407  
BALL INSERT ............................................................. 1 ....................SEE NOTE  
EM18801  
EM14818  
EM968266  
EM618  
EM18409  
EM14801  
EM136  
“O” RING  
5
1
STEEL BALL, 4”  
NUT, JAM 3/4-16 ........................................................ 6 ..................... REPLACES EM421  
WASHER, SPECIAL 3/4  
“O” RING  
PRIMARY VALVE  
STUD, 3/4-16X8  
T-BOLT, 3/4-10X14  
VALVE SEAT  
6
6
1
3
2
1
1
1
EM137  
EM14817  
EM14810  
EM14845  
EM23839  
EM28904  
EM23840  
EM28904  
EM23838  
EM23946  
EM135  
JOLTER SPRING  
CLAMP ARM  
3” COUPLING “B” VIC ................................................ 1 ....................PRIOR TO JULY 1, 1990  
3" COUPLING "B" HD ................................................ 1 ....................AFTER JULY 1, 1990  
3” COUPLING S/J VIC ................................................ 1 ....................PRIOR TO JULY 1, 1990  
3" COUPLING "B" HD ................................................ 1 ..................... AFTER JULY 1, 1990  
ELBOW, 3”-90° ........................................................... 1 ....................PRIOR TO JULY 1, 1990  
ELBOW. 3"-90° ........................................................... 1 ....................AFTER JULY 1, 1990  
BOLT, 1-1/4-12X6  
MANIFOLD ASSY  
1
1
EM14819A  
EM968446  
EM619  
NUT, HEX 3/4-10 ........................................................ 2 ....................REPLACES EM407  
WASHER, WILLIAM 3/4  
STEEL BALL, 4 1/2”  
2
1
EM18804  
BALL INSERT ............................................................. 1 ....................SEE NOTES  
EM160  
EM451  
BOLT, 3/8-16X3/4  
NUT, LOCK 1-1/4-12  
1
1
Not Shown in diagram: 4" Urethane Ball (P/N EM26817); 4" Seat (P/N EM26816)  
Notes on item #285 — Machines prior to July 1, 1990  
use P/N 18803 Ball Insert; On machines after July 1,  
1990, P/N 18803 was replaced by the Duraseat P/N  
14843.This new seat is more durable and can be used  
on older units.  
Notes on item #305 — Machines prior to July 1, 1990  
use P/N 18806 insert (used in conjunction with 14817  
seat); On machines after July 1, 1990, these parts are  
replaced by 14842 Duraseat.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 37  
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C-30HD — CLUTCH ASSEMBLY — ALL MACHINES PRIORTO S/N 960801 (August 1996)  
203  
199  
200  
201  
202  
C-30HD CONCRETE
CLUTCH ASSEMBLY  
ALL MACHINES UP T
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
196  
197  
198  
199  
200  
201  
202  
203  
204  
205  
206  
EM14320  
EM918050  
EM923346  
EM963564  
EM628  
CLUTCH ASSEMBLY (8" DIA) ................................... 1 ....................INCLS. ALL ITEMS W/  
CLUTCH SPRING ...................................................... 2 ....................REPLACES EM26309  
1/2 LOCK WASHER .................................................... 1 ....................REPLACES EM606  
1/2-13X1 1/4 HEX BOLT ............................................ 1 ....................REPLACES EM139  
*
*
*
*
*
*
*
*
*
*
*
SPECIAL WASHER  
ROTOR ASSEMBLY  
CLUTCH LINING  
1
1
1
1
EM26321  
EM26310  
EM26322  
EM902204  
EM926066  
EM926053  
CLUTCH HOUSING  
CLUTCH BEARING .................................................... 2 ....................REPLACES EM26311  
RETAINING RING....................................................... 2 ....................REPLACES EM801  
RETAINING RING....................................................... 1 ....................REPLACES EM800  
C-30HD — CLUTCH ASSEMBLY — ALL MACHINES S/N 960801THRU 980400 (August 1996)  
Note: CLUTCH ASSY (BLM 6") P/N  
EM14320A HAS BEEN REPLACED  
BY CLUTCH ASSY P/N EM14320  
(8"  
CLUTCH)  
THE CLUTCH PACK FOR 6"  
CLUTCH IS STILL AVAILABLE  
UNDER P/N EM60HB  
PAGE 38 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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NOTE PAGE  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 39  
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C-30HD — CRANKSHAFT ASSEMBLY  
PAGE 40 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — CRANKSHAFT ASSEMBLY  
C-30HD CONCRETE PUMP  
CRANKSHAFT ASSEMBLY  
NO.  
1
2
3
4
5
6
7
PART NO.  
PART NAME  
CRANKSHAFT  
SPACER  
QTY.  
1
1
2
2
1
1
1
REMARKS  
EM14305  
EM14322  
EM14326  
EM14325  
EM14323  
EM14324  
EM14303  
EM14302  
EM14306  
“O” RING  
BEARING CONE  
BEARING CONE SPACER  
BEARING CUP  
BEARING BLOCK  
CAM BUSHING SPACER  
CRANKSHAFT KEY  
8
9
1
2
10  
11  
12  
13  
14  
15  
16  
KEY ............................................................ 1 ............. INCLUDED W/ ITEMS 12 +16  
EM14300  
EM14301  
EM14304  
EM30190  
EM14307  
EM14309  
CAM WELDMENT  
CAM BUSHING  
CAM BEARING  
SET COLLAR  
1
1
1
1
1
1
SPROCKET, 60 TOOTH  
BUSHING  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 41  
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C-30HD — CRANKSHAFT ASSEMBLY  
156  
PAGE 42 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — CRANKSHAFT ASSEMBLY  
C-30HD CONCRETE PUMP  
CRANKSHAFT ASSEMBLY  
NO.  
PART NO.  
EM14322  
EM14326  
EM923350  
EM968446  
EM702  
EM916001  
EM14300  
EM968013  
EM923348  
EM620  
PART NAME  
SPACER  
“O” RING  
QTY.  
1
2
REMARKS  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
143  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
154  
155  
156  
LOCK WASHER .......................................................... 2 ....................REPLACES EM610  
NUT, HEX 3/4-10 ........................................................ 4 ....................REPLACES EM407  
SCREW, SET HALF DOG POINT 3/8-16X3/4  
LUBE FITTING, 1/8-27 NPT ...................................... 2 ....................REPLACES EM16179  
CAM WELDMENT  
NUT, HEX 5/8-11 ........................................................ 4 ....................REPLACES EM419  
WASHER, LOCK 5/8 .................................................. 3 ....................REPLACES EM602  
WASHER, WILLIAMS 5/8  
BOLT, HEX 5/8-11X4  
CAM BEARING  
BOLT, SOC HD 3/8-16X1 1/4  
CAM BUSHING  
CAM BUSHING SPACER  
BEARING CONE  
BEARING BLOCK  
BOLT, HEX 3/4-10X8 1/2  
BEARING CUP  
2
1
4
2
1
1
1
1
2
1
2
1
1
1
2
1
2
1
EM128  
EM14304  
EM175  
EM14301  
EM14302  
EM14325  
EM14303  
EM129  
EM14324  
EM14323  
EM104  
BEARING CONE SPACER  
BOLT, HEX 5/8-11X2  
CRANKSHAFT KEY  
CRANKSHAFT  
SCREW, SET 3/8-16X3/8  
SET COLLAR  
EM14306  
EM14305  
EM703  
EM30139  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 43  
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C-30HD — COUNTER SHAFT ASSEMBLY  
PAGE 44 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — COUNTER SHAFT ASSEMBLY  
C-30HD CONCRETE PUMP  
COUNTER SHAFT ASSEMBLY  
NO.  
PART NO.  
PART NAME  
SPROCKET, 60 TOOTH  
CHAIN  
BUSHING  
OFFSET LINK  
SCREW, SET 3/8-16X3/4  
SCREW, SET 3/8-16X3/8  
SPROCKET, 13 TOOTH  
BUSHING  
QTY.  
1
1
1
1
1
1
1
REMARKS  
155  
156  
157  
158  
159  
160  
161  
161  
163  
164  
165  
166  
167  
168  
169  
170  
171  
172  
173  
174  
175  
176  
177  
178  
179  
EM14307  
EM14308  
EM14309  
EM26313  
EM702  
EM703  
EM14318  
EM14319  
EM14312  
EM968011  
EM923346  
EM14315  
EM900127  
EM14314  
EM14313  
EM14316  
EM14311  
EM124  
1
1
COUNTER SHAFT  
NUT, HEX 1/2-13 ........................................................ 4 ....................REPLACES EM404  
WASHER, LOCK 1/2 .................................................. 4 ....................REPLACES EM606  
BELT, BP90 (GASOLINE)  
BELT, B87 (DIESEL) ................................................... 2 ....................REPLACES EM14321  
BUSHING  
PULLEY  
KEY  
CAM BEARING  
BOLT, HEX 1/2-13X4  
WASHER, WILLIAM 1/2  
1
1
1
1
2
4
4
EM621  
EM916001  
EM14317  
EM161  
EM492378  
EM123  
EM26314  
LUBE FITTING ........................................................... 2 ....................REPLACES EM16179  
KEY  
1
3
BOLT, HEX 5/16-18X1  
BOLT, HEX 3/8-16X1 3/4 ............................................ 3 ....................REPLACES EM177  
BOLT, HEX 3/8-16X1 1/4  
CONNECTING LINK  
3
1
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 45  
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C-30HD — COMPENSATOR PISTON ROD  
PAGE 46 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — COMPENSATOR PISTON ROD  
C-30HD CONCRETE PUMP  
COMPENSATOR PISTON ROD  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
126  
127  
128  
129  
130  
131  
132  
EM18800  
EM968446  
EM14413  
EM18409  
EM14412  
EM14411  
EM14408  
EM14410  
EM16493  
EM20816  
EM903162  
EM916001  
EM14806  
EM903163  
EM20814  
EM20813  
EM14805  
EM14331  
EM14333  
EM14332  
EM14105  
EM20412  
EM14409  
EM14407  
EM916001  
EM14336  
EM14334  
EM704  
PUMPING CYLINDER  
NUT, HEX 3/4-10 ........................................................ 4 ....................REPLACES EM407  
FACE PLATE  
“O” RING  
BUSHING  
1
2
4
2
2
2
2
2
2
PISTON CUP  
BRONZE RING  
RING & FELT HOLDER  
FELT RING  
“O” RING  
BEARING CONE ........................................................ 4 ....................REPLACES EM20815  
LUBE FITTING ........................................................... 2 ....................REPLACES EM16179  
PISTON GUIDE  
BEARING CUP ........................................................... 2 ....................REPLACES EM20812  
BUSHING  
SPACER  
1
2
2
1
1
1
1
1
2
2
2
ROD END  
BACKING PLATE  
RETURN SPRING  
GUIDE ROD  
ANCHOR PLATE  
OILER FITTING MINI-BARB  
OILER PLATE  
“O” RING  
LUBE FITTING ........................................................... 3 ....................REPLACES EM16179  
PISTON GUIDE  
COMPENSATOR SPRING  
PIN, LG SPIRAL 1/2X2  
PISTON ROD  
1
1
1
1
EM14335  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 47  
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C-30HD — CONNECTING ROD ASSEMBLY 20328 (OLD STYLE)  
A
PAGE 48 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — CONNECTING ROD ASSEMBLY 20328 (OLD STYLE)  
C-30HD CONCRETE PUMP  
CONNECTING ROD ASSEMBLY EM20328 (OLD STYLE)  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
A
EM20328  
EM14808  
EM968446  
EM14807  
EM402150  
EM2330  
CONNECTING ROD ASSY ........................................ 1 ....................INCLS. ALL ITEMS W/  
*
87  
88  
89  
PISTON ROD WELDMENT  
3/4-10 HEX NUT ........................................................ 1 ....................REPLACES EM407  
PUMPING CYLINDER  
SPACER ...................................................................... 2 ....................REPLACES EM20329  
O-RING  
1
1
90  
*
91  
92  
93  
94  
95  
96  
97  
98  
99  
2
*
*
*
*
*
*
*
*
*
EM402999  
EM916004  
EM903175  
EM402149  
EM402996  
EM20336  
EM903176  
EM916001  
SPACER ...................................................................... 2 ....................REPLACES EM20331  
LUBE FITTING ........................................................... 1 ....................REPLACES EM16153  
BEARING .................................................................... 1 ....................REPLACES EM20333  
BUSHING .................................................................... 1 ....................REPLACES EM20332  
SPACER ...................................................................... 1 ....................REPLACES EM20335  
“O” RING  
2
BEARING .................................................................... 1 ....................REPLACES EM20337  
LUBE FITTING ........................................................... 1 ....................REPLACES EM16179  
100  
101  
103  
EM20328-1  
EM703  
EM20338  
CONNECTING ROD  
SCREW, SET LG CUP 3/8-16X3/8  
SPACER  
1
2
1
*
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 49  
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C-30HD — CONNECTING ROD ASSEMBLY 20328T (NEW STYLE)  
A
PAGE 50 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — CONNECTING ROD ASSEMBLY 20328T (NEW STYLE)  
C-30HD CONCRETE PUMP  
CONNECTING ROD ASSEMBLY EM20328T (NEW STYLE)  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
A
EM20328T  
EM14808  
EM968446  
EM14807  
CONNECTING ROD ASSY ........................................ 1 ....................INCLS. ALL ITEMS W/  
*
87  
88  
89  
PISTON ROD WELDMENT  
1
NUT, HEX 3/4-10 ........................................................ 1 ....................REPLACES EM407  
PUMPING CYLINDER  
O-RING  
1
2
90  
EM20816  
EM903162  
EM20813  
EM916004  
EM903175  
EM20814  
EM402996  
EM20336  
EM903176  
EM916001  
*
91  
92  
93  
94  
95  
96  
97  
98  
99  
BEARING CONE ........................................................ 2 ....................REPLACES EM20815  
SPACER  
*
*
*
*
*
*
*
*
*
1
LUBE FITTING ........................................................... 1 ....................REPLACES EM16153  
BEARING CUP ........................................................... 1 ....................REPLACES EM20333  
BUSHING  
SPACER ...................................................................... 1 ....................REPLACES EM20335  
“O” RING  
1
2
BEARING .................................................................... 1 ....................REPLACES EM20337  
LUBE FITTING ........................................................... 1 ....................REPLACES EM16179  
100  
101  
102  
103  
EM20364  
EM703  
EM702  
CONNECTING ROD  
1
1
1
1
*
SCREW, SET, LG CUP 3/8-16X3/8  
SCREW, SET, POG POINT 3/8-16X3/8  
SPACER  
EM20338  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 51  
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C-30HD — ROCKER ASSEMBLY  
PAGE 52 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — ROCKER ASSEMBLY  
C-30HD CONCRETE PUMP  
ROCKER ASSEMBLIES  
NO.  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
84  
86  
87  
PART NO.  
EM202  
EM133  
PART NAME  
QTY.  
REMARKS  
BOLT, HEX 1-8X6 LG  
BOLT, HEX 1-14X2 LG  
WASHER, STAR 1”  
ROCKER ARM SHAFT  
LUBE FITTING, 1/8-27 NPT ...................................... 3 ....................REPLACES EM16179  
BUSHING  
BOLT, HEX 1-14X6 LG  
WASHER, LOCK 1”  
ROCKER ARM ASSEMBLY  
NUT, LOCK 1-14  
BUSHING .................................................................... 1 ....................REPLACES EM20346  
SPACER  
CAM ROLLER ............................................................ 1 ....................REPLACES EM20345  
1
2
3
1
EM627  
EM14329  
EM916001  
EM20326-2  
EM105  
4
2
3
1
3
EM603  
EM14328  
EM417  
EM402434  
EM20347  
EM903092  
EM23044  
EM14846  
EM405  
EM402456  
EM963180  
EM923157  
3
GREASE BOLT  
1
1
1
1
CAM ROCKER ARM  
NUT, LOCK 3/4-10  
OILER PLUG  
BOLT, HEX 3/4-10X5 LG ............................................ 1 ....................REPLACES EM131  
CAM OILER SEAL SPACER ....................................... 1 ....................REPLACES EM607  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 53  
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C-30HD — COMPENSATING SPRING ASSEMBLY  
EM14409  
EM20412  
EM20415  
EM18409  
NOTE:If it is necessary to replace the spring, remove the piston  
head assembly which allows the guide weldment to be  
removed from the piston rod.  
EM14335  
EM16179  
EM16179  
EM14334  
EM14806  
EM704  
NOTE:Grease the compensator piston rod  
daily at both fittings. Failure to grease  
regularly may cause the piston rod to  
“seize” in the guide tube resulting in  
severe pulsations of material in the hose.  
EM20812  
EM16179  
PAGE 54 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — RETURN SPRING ASSEMBLY  
EM14846  
EM903092  
EM14805  
EM14332  
EM14105  
(PART OF PUMP BOX ASSEMBLY)  
EM14333  
EM14331  
EM14334  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 55  
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C-30HD — OIL SYSTEM AND FUEL SYSTEM  
PAGE 56 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — OIL SYSTEM AND FUEL SYSTEM  
C-30HD CONCRETE PUMP  
OIL SYSTEM AND FUEL SYSTEM  
NO.  
PART NO.  
EM20426  
EM20427  
PART NAME  
MINI BARB ELBOW  
FUEL LINE  
FUEL TANK .......................................... 1 ........................... SEE NOTE  
NUT, HEX 5/16-18  
WASHER, LOCK 5/16 ......................... 6 ........................... REPLACES EM601  
WASHER, FLAT 5/16 ........................... 10 ......................... REPLACES EM614  
BOLT, HEX 5/16-18X1 1/2  
FUEL TANK STRAP ............................. 2 ........................... SEE NOTE  
FUEL TANK CAP ................................. 1 ........................... SEE NOTE FOR PLASTIC FUEL TANK  
OIL PLUG  
MINI BARB FITTING  
CLEAR PLASTIC TUBE  
NIPPLE  
QTY.  
2
A/R  
REMARKS  
176  
177  
178  
179  
180  
181  
182  
183  
184  
185  
186  
187  
188  
189  
190  
191  
192  
193  
194  
195  
196  
EM401  
6
EM968354  
EM923023  
EM101  
4
EM20787  
EM20349  
EM20412  
EM20415  
EM20417  
EM20418  
EM911004  
EM20421  
EM14401  
EM963030  
EM923027  
EM14198  
EM1440  
1
3
A/R  
1
1
TEE FITTING  
STREET ELBOW ................................. 1 ........................... REPLACES EM20416  
METERING VALVE  
ELECTRIC OIL PUMP  
BOLT, HEX 5/16-18X1 ......................... 2 ........................... REPLACES EM163  
WASHER, FLAT 3/8 ............................. 2 ........................... REPLACES EM611  
OIL RESERVOIR  
INSERT FITTING  
2
1
1
1
Notes: Item #178 and 183 (A) — Machines prior to 1993  
use P/N 14701 FuelTank (8 gal. capacity) and #14703  
FuelTank Straps (two required). (B) — Machines after  
1993 use P/N 14205 Fuel Tank (18 gal. capacity) and  
#16185 Fuel Tank Straps (two required). (C) —  
Machines after 2/1/95 use P/N 14205P Plastic Fuel  
Tank (18 gal. capacity); P/N 2108 Gas Cap. Fuel tank  
straps not required. Note: interchangeable with P/N  
14205.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 57  
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C-30HD — CENTRAL GREASE LUBRICATION PANEL EFFECTIVE S/N 970101  
FITTING LOCATION AND PLASTIC HOSE LENGTH  
EM509306 PANEL ASSY COMPLETE  
NOTE: P/N  
EM16495  
GREASE LINE  
(sold per foot)  
EM505489 HOSE GREASE ZERK-12 REQUIRED  
EM505490 45° GREASE ZERK-1 REQUIRED  
POSITION  
LOCATION  
LENGTH OF LINES  
1 ....................................................FLANGE BEARING (CRANKSHAFT)................................................... 28"  
2 ....................................................CONNECTING ROD ............................................................................ 31"  
3 ....................................................CAM BEARING .................................................................................... 28"  
4 ....................................................STEEL BEARING BLOCK (SQUARE) .................................................. 34"  
5 ....................................................ROCKER ARM UPPER (CRANKSHAFT SIDE) .................................... 10"  
6 ....................................................PILLOW BLOCK BEARINGS (COUNTERSHAFT) ............................... 15"  
7 ....................................................LOWER ROCKER ARM ....................................................................... 28"  
8 ....................................................ROCKER ARM LOWER (CHAIN SIDE) ................................................ 26"  
9 ....................................................PILLOW BLOCK BEARINGS (COUNTERSHAFT) ............................... 20"  
10 ..................................................ROCKER ARM UPPER (PULLEY SIDE) .............................................. 20"  
11 ..................................................CONNECTING ROD LOWER .............................................................. 40"  
12 ..................................................PISTON GUIDE .................................................................................... 42"  
13 ..................................................PISTON ROD ....................................................................................... 42"  
TOTAL LENGTH OF LINES REQUIRED .............................................. 364"  
PAGE 58 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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NOTE PAGE  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 59  
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C-30HD — AXLE INSTALLATION  
A
PAGE 60 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — AXLE INSTALLATION  
C-30HD CONCRETE PUMP  
AXLE INSTALLATION  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
A
209  
210  
EM26615A  
EM26518  
EM20603  
TIRE ASSY ................................................................. 2 ....................INCLS. ALL ITEMS W/  
*
HUB CAP  
TIRE  
2
2
2
*
*
211  
EM20602  
WHEEL  
212  
213  
214  
EM20601  
EM14600  
EM705  
HUB ASSEMBLY......................................................... 2 ....................INCLS. ALL ITEMS W/#  
AXLE  
1
2
PIN, COTTER 3/16X1 1/2  
215#  
216#  
217#  
218#  
219#  
220#  
221#  
222#  
223#  
224#  
225#  
EM26305  
EM903168  
EM903169  
EM26300  
EM903012  
EM903113  
EM26329  
EM968481  
EM26306  
EM26519  
EM20612  
GREASE SEAL  
2
INNER BEARING ........................................................ 2 ....................REPLACES EM26301  
INNER CUP ................................................................ 2 ....................REPLACES EM26303  
HUB  
2
OUTER CUP ............................................................... 2 ....................REPLACES EM26304  
OUTER BEARING ...................................................... 2 ....................REPLACES EM26302  
WASHER  
2
CASTLE NUT ............................................................. 2 ....................REPLACES EM420  
DUST COVER  
NUT  
2
12  
12  
STUD  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 61  
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C-30HD — HOPPER AND HOOD  
69  
PAGE 62 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — HOPPER AND HOOD  
C-30HD CONCRETE PUMP  
HOPPER AND HOOD  
NO.  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
PART NO.  
PART NAME  
QTY.  
REMARKS  
DURASEAT ................................................ 1 ............. SEE NOTE BELOW  
“O” RING  
5/8” LOCK WASHER .................................. 3 ............. REPLACES EM602  
5/8-11X2 LG HEX BOLT  
HOOD  
HOPPER  
HOPPER SCREEN  
DOOR HINGE  
EM18801  
EM923348  
EM104  
1
3
1
1
1
1
1
2
2
2
2
1
EM14140  
EM14141  
EM14159  
EM14140-17  
EM14140-16  
EM14140-4  
EM14140-5  
EM406  
HOOD DOOR  
HOOD DOOR SUPPORT  
HOOD SUPPORT BRKT  
1/2-13 HEX NUT  
1/2-13X4 LG HEX BOLT  
LATCH  
EM124  
508659  
EM14164  
KIT, DECAL SAFETY ................................. 1 ............. COMPONENTS NOT SHOWN  
Note on item 56: A — Machines, built after July 1, 1990  
use Duraseat P/N 14843 — This new seat is more  
durable and can be used on older units.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 63  
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C-30MG — SCALED DOWN MANIFOLD/CYLINDER KIT MODEL C-30MG  
The above manifold/cylinder and piston assembly can be  
ordered as a kit to be installed on model C-30K, C-30SP or  
model C-30D pumps. This unit has a volume delivery of 4 to  
13 cu. yds. per hour. When installed on a standard pump, the  
unit will pump brick mortar as well as 1/2” minus aggregate  
mixes in excess of 200 ft. vertical. It is a high pressure-low  
volume pump for numerous applications such as high-rise  
grouting-spancrete-mud jacking-capping wells-tunnel  
grouting-pumping pilings and shotcrete.  
Note: If the above assembly is installed on model C-30D pumps  
it will be necessary to replace the compensator piston rod  
assembly with the new style used on the model C-30K, and  
model C-30 HD.  
PAGE 64 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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NOTE PAGE  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 65  
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C-30MG — MANIFOLD ASSEMBLY C-30MG  
PAGE 66 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30MG — MANIFOLD ASSEMBLY C-30MG  
C-30MG CONCRETE PUMP  
MANIFOLD ASSEMBLY-C30-MG  
NO.  
1
2
3
4
5
6
7
PART NO.  
EM14832  
EM14827  
EM14824  
EM14422  
EM14823  
EM14822  
EM803  
PART NAME  
PUMPING CYLINDER  
MANIFOLD  
STEEL BALL, 3-1/4  
SQ. SEAL  
VALVE SEAT  
VALVE HOUSING  
BALL STOP STUD  
WASHER, 3/4  
QTY.  
1
1
1
1
1
1
3
REMARKS  
8
EM618  
6
9
EM968266  
EM14833  
EM802  
NUT, JAM 3/4-16 ....................................... 6 ............. REPLACES EM421  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
ADAPTOR  
1
1
1
1
1
1
1
1
1
RETAINING RING  
O-RING  
EM14829  
EM18801  
EM14824  
EM14826  
EM18801  
EM14823  
EM14836  
EM963180  
EM968446  
EM14832  
EM14828  
EM135  
EM14845  
EM14810  
EM14830  
EM160  
EM14829  
EM802  
O-RING  
STEEL BALL, 3-1/4  
INSERT  
O-RING  
VALVE SEAT  
VALVE SEAT ADAPT.  
BOLT, 3/4-10X5 ......................................... 1 ............. REPLACES EM131  
NUT, HEX 3/4-10 ....................................... 1 ............. REPLACES EM407  
COMP CYLINDER  
REDUCER  
BOLT, 1/4-20X6  
CLAMP ARM  
SPRING  
O-RING  
BOLT, 3/8-16X3/4  
O-RING  
1
1
1
1
1
1
1
1
1
1
6
6
RETAINING RING  
ADAPTOR  
O-RING  
EM14833  
EM18409  
EM618  
EM968266  
EM451  
WASHER, 3/4  
NUT, JAM 3/4X16 ...................................... 6 ............. REPLACES EM421  
NUT, HEX 1-1/4-12  
1
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 67  
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C-30MG — PISTON HEAD COMPONENTS  
PAGE 68 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30MG — PISTON HEAD COMPONENTS  
C-30MG CONCRETE PUMP  
PISTON HEAD COMPONENTS C30-MG  
NO.  
1
2
3
4
5
6
7
8
9
10  
11  
PART NO.  
PART NAME  
QTY.  
REMARKS  
EM968446  
EM14420  
EM18409  
EM14418  
EM14419  
EM14417  
EM14416  
EM14423  
EM14421  
EM18409  
EM14808  
NUT, HEX 3/4-10 ....................................... 2 ............. REPLACES EM407  
FACE PLATE  
O-RING  
SLEEVE  
PISTON CUP  
BACK PLATE  
FELT SPACER  
FELT RING  
OILER PLATE  
O-RING  
2
2
2
2
2
2
2
2
2
2
PISTON ROD  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 69  
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C-30SP — OPTIONAL SCREW CONVEYOR ANDTORQUE LIMITER MODEL C30-SP  
PAGE 70 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30SP — OPTIONAL SCREW CONVEYOR ANDTORQUE LIMITER MODEL C30-SP  
C-30SP CONCRETE PUMP  
OPTIONAL SCREW CONVEYOR AND TORQUE LIMITER C30-SP  
NO.  
1
2
3
4
5
6
7
PART NO.  
PART NAME  
HOPPER  
QTY.  
1
REMARKS  
EM14175  
EM968011  
EM923346  
EM26108  
EM147  
EM26108-4  
EM721  
EM14170  
EM14340  
EM14338  
EM14341  
EM14716  
EM14339  
EM26359  
EM720  
EM916001  
EM26109  
EM147  
EM923346  
EM621  
EM18138  
EM18135  
EM18138  
EM18136  
EM18137  
EM18136  
EM18137  
NUT, HEX 1/2-13 ....................................... 2 ............. REPLACES EM404  
WASHER, LOCK 1/2 ................................. 2 ............. REPLACES EM606  
SCREW FEEDER  
BOLT, HEX 1/2-13X2.1/2  
PLUG  
1
2
1
1
1
1
1
1
1
1
1
1
KEY  
8
9
EXTENSION  
SPROCKET CHAIN  
TORQUE LIMITER  
SPROCKET  
BUSHING  
SPROCKET  
DRIVE SHAFT  
KEY  
OILER ........................................................ 1 ............. REPLACES EM16179  
CHAIN GUARD  
BOLT, HEX 1/2-13X2.1/2  
WASHER, LOCK 1/2 ................................. 8 ............. REPLACES EM606  
WASHER, WILLIAM  
SEAL SPACER  
FLANGE BEARING  
SEAL SPACER  
SPACER PLATE  
SHAFT SEAL  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
1
8
4
8
2
8
2
2
2
2
SPACER PLATE  
SHAFT SEAL  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 71  
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RECOMMEMDED SHOTCRETE SYSTEM  
For swimming pool construction, ditch lining, tunnel lining, slope stabilization, etc.  
PAGE 72 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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RECOMMEMDED SHOTCRETE SYSTEM  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
EM28904........... 3" “B” COUPLING  
EM23946........... 3"-90° ELBOW  
EM28903........... 2 1/2" S/J COUPLING  
EM28005DD ..... 3"X 2 1/2 REDUCER  
EM28061........... 2 1/2"X 10FT. PIPE  
EM24849........... 2 1/2"X 50FT. HOSE  
EM28001DD ..... 2 1/2"X 2" REDUCER  
EM23815D ........2 1/2"X 2" REDUCER  
W/AIRVIBRATOR  
2
3
4
5
6
7
8
9
EM28902........... 2" S/J COUPLING  
EM23101........... AIRVIBRATOR  
EM28131........... 2"X 2 ELBOW  
10  
11  
12  
13  
14  
15  
EM24841........... 2"X 25 FT. HOSE  
EM23808D ........NOZZLE ASSEMBLY  
EM23806........... 1 3/8" NOZZLE TIP  
EM23807........... 1 1/4" NOZZLE TIP  
General recommendations  
I
If the site will permit, use steel pipe from the pump  
to the pool perimeter. It will reduce line pressures  
which is highly recommended.  
I
I
The vibrator on the reducer by the pool improves  
pumpability.  
Turn both air vibrators off whenever the pump is  
stopped to prevent separation of mix.  
I
I
The air vibrators are low consumption (4.2 scfm).  
Leave the air on at the nozzle when the pump is  
stopped to prevent clogging of air the hoses in the  
air insert.  
I
Use item #11 (steel elbow) at the edge of the pool  
to prevent collapse of the rubber hose, which can  
cause blockage.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 73  
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C-30HD SHOTCRETE ACCESSORIES  
PAGE 74 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD SHOTCRETE ACCESSORIES  
C-30HD CONCRETE PUMP  
SHOTCRETE ACCESSORIES  
NO.  
PART NO.  
PART NAME  
QTY.  
1
1
2
1
1
1
2
REMARKS  
302  
303  
304  
305  
306  
307  
308  
309  
310  
311  
312  
EM26107  
EM23101-1  
EM132  
EM23407  
EM23408  
EM23411  
EM912073  
EM23409  
EM923346  
EM406  
EM23818  
EM24841  
EM23845  
EM23802  
EM23803  
EM20816  
EM23804  
EM23805  
EM23806  
EM23807  
EM911076  
HOPPER SCREEN  
AIR VIBRATOR  
BOLT, 1/2-13X2  
AIR HOSE  
BUSHING  
VALVE  
NIPPLE  
COUPLING  
1
WASHER, 1/2 LOCK ................................. 2 ............. REPLACES EM606  
NUT, HEX 1/2-13  
2"X25' GROOVED HOSE  
2"X25' RAISED HOSE  
2"X50' GROOVED HOSE  
ADAPTER  
GUN BODY  
“O” RING  
2
313  
314  
315  
316  
317  
318  
319  
320  
321  
1
1
1
1
1
1
1
*
*
*
*
*
*
*
*
AIR INSERT  
NOZZLE CLAMP  
NOZZLE TIP, 1 3/8"  
NOZZLE TIP, 1 1/4"  
STREET ELBOW ....................................... 1 ............. REPLACES EM23412  
AIR HOSE NOT SUPPLIED BY MAYCO  
NOZZLE ASSEMBLY................................. 1 ............. INCLS. ITEMS W/  
322  
EM23808  
*
NOTE: Use a 1 3/8" rubber nozzle tip for a wide spray  
pattern. Use a 1 1/4" rubber nozzle tip for a narrow spray  
pattern. DO NOT INSTALLTHE NOZZLE ATTHE END OF  
THE HOSE UNTIL THE FIRST MATERIAL HAS PASSED  
THROUGHTHE ENTIRE HOSE LENGTH.  
Disassemble and clean the nozzle assembly  
thoroughly after each job. Grease all threads before re-  
assembly. Do not close the air valve when pumping is  
stopped as a continued air flow keeps the air passages  
clean.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 75  
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C-30HD — SERVICE PROCEDURES  
1. CRANKSHAFT AND CAM ASSEMBLY PROCEDURE  
2. BALL AND SEAT REPLACEMENT PROCEDURE  
A. Set bearing block (part #EM14303) into hydraulic press.  
Place bearing cup into bearing block and press in evenly.  
Bearing cup should be aligned equally on both sides of bearing  
block.  
A. Remove 3”x 2” reducer and 3” elbow from the pump outlet.  
Remove exhaust gate and Y-manifold (secondary manifold).  
Check ball seat and ball stop pin for wear. If any wear is  
detected, the part should be replaced. Remove T-manifold  
(primary manifold). Check all parts for wear. Remove hopper  
and hopper seat and inspect.  
B. Set crankshaft into hydraulic press with the long end  
towards the top. Install spacer (part #EM14322), O-ring (part  
#EM14326) and bearing cone (part #EM14325) onto  
crankshaft. Place bearing block on crankshaft until the bearing  
cone is riding in the bearing cup. Insert bearing cone spacer  
(part #EM14323) onto crankshaft and inside bearing block.  
Install second bearing cone until it is seated inside bearing  
cup. Place O-ring and spacer (part #EM14302) on crankshaft.  
Set cam weldment on top of spacer.Install crankshaft key and  
cam key on cam bushing (part #EM14301).Slide cam bushing  
down crankshaft and align the bushing, cam and crankshaft.  
Install sleeve over crankshaft and align with hydraulic press.  
Install cam bushing bolts loosely. Press bushing down onto  
bearing assembly. Leaving pressure on the bushing, tighten  
cam bolts evenly to 40-50 foot pounds. Release pressure on  
the bushing, re-apply pressure to bushing and tighten bolts  
evenly to 40-50 foot pounds. Repeat procedure 3 to 4 times.  
After bushing is tight into cam, remove from hydraulic press.  
Remove one bolt at a time, using Loctite, install bolts and  
torque to 65-70 foot pounds. Counter sink set screw hole and  
install dog point set screw and second set screw both with  
Loctite.  
B. Loosen the piston nuts and remove the piston cup assembly  
and cylinders.Inspect all parts for wear and replace parts with  
excessive wear. Check oiler pump for proper operation.  
C.Clean all parts thoroughly, removing all foreign material and  
concrete slurry.Once parts are clean, install concrete cylinders.  
Place oiler plate O-ring in place and coat with oil. Install small  
O-ring on piston rod. Run oiler line through the cylinders and  
connect in the oiler fitting on the oiler plate. Push oiler plate  
into cylinder. Install ring and felt holder, soak felt ring in oil,  
then install around felt holder in cylinder.Make sure the bronze  
ring is flat, then push it up flush with the ring and felt holder.  
Coat piston cup with oil and push it inton the cylinder. Install  
bushing into center of piston cup.Put small O-ring on rod, place  
face plate on rod and tighten down securely. Repeat these  
procedure on the opposite cylinder.  
D.Thoroughly check T-manifold, ball stoppings and both steel  
balls for wear. Insert an O-ring in the top flange and in the  
leading edge of the manifold. Put the manifold onto the primary  
side of the pump and install bolts leaving them loose.  
E. Check Y-manifold for wear, install all O-rings, ball stop pin,  
ball and seat. Align and install Y-manifold to T-manifold and  
cylinder assembly. Tighten Y-manifold bolts first before  
tightening T-manifold bolts. After manifolds are tight, check O-  
rings for slippage.  
C. Place cam bearing onto crankshaft keeping bearing loose.  
*Note: Make sure the eccentric lock is facing toward the outside  
of the pumping unit.  
D. Set crankshaft assembly into the pump box and align both  
bearing assemblies with the pump box mountings.  
F. Insert seat into frame hole directly above the T-manifold.  
The seat orifice should fit inside the frame itself, then the seat  
sits on top of the orifice. On the dura-seat, set the big end of  
the seat in the frame. The seat, or the small part of the dura-  
seat, fits into the bottom of the hopper.  
E. After crankshaft assembly is securely fastened to the pump  
box, place sprocket (part #EM14307) onto the cam side of  
the crankshaft assembly.Install bushing (part #EM14309) into  
sprocket. Align sprocket with sprocket on countershafts and  
tighten bolts.  
G. After tightening the manifold bolts and inserting the seats  
in place, set the hopper over the seat and align the bolt holes.  
Tighten bolts, check O-ring and seat for alignment.  
F. Install chain part #EM14308. To adjust, loosen locknuts on  
pusher bolts and tighten chain to approximately 1/2” slack in  
the chain. Once chain is adjusted properly, tighten down  
locknuts.  
H. Check exhaust gate for wear, install and align gate onto Y-  
manifold.Insert O-ring into exhaust gate flange and close gate.  
Lock down lever and adjust clamp arm.  
I. Install 3” elbow and 3”x 2” reducer. Fill hopper half full and  
check for leaks.  
PAGE 76 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — SERVICE PROCEDURES  
3. CLUTCH LINING REPLACEMENT (FOR EM14320  
CLUTCH ASSEMBLY ONLY)  
A. Remove worn out lining and rivets. Check clutch springs  
and flyweights for wear.  
B. Cut 1/8” off of each end of clutch lining. Slide lining into place.  
Insert one rivet into clutch lining hole. (Make sure rivet goes  
from inside out.) Wedge a flathead screwdriver between clutch  
flyweight and rivet head. Adjust screwdriver so that the rivet  
sticks out from the clutch housing approximately 1/8 of an inch.  
With a flat punch, pen the ends on the rivet so that it locks in  
place with the clutch housing. Repeat this procedure for all  
remaining clutch rivets.  
PREVENTIVE MAINTENANCE  
It is extremely important to maintain this pump due to  
the highly abrasive nature of concrete material.  
Mayco recommends checking after every 8 hours of operation.  
1. Engine; Refer to engine owner’s manual.  
2. Inspect all drive components for loose or worn bolts.  
3. Drive belt/chain should be checked to remove all slack. Refer  
to adjustment procedure.  
4. Always carry extra “O” rings.  
5. Keep entire pump clean of concrete to prevent build-up.  
6. Always grease all fittings daily. Use only premium grade  
grease. *Note: Over greasing will not damage machine.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 77  
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C-30HD — SERVICE INFORMATION MANUFACTURING CHANGES  
EM14845  
When ordering the new Manifold  
EM135  
P/N EM14819, the following items  
are necessary to complete the new  
Clamp Arm Assembly:  
EM451...................Nut, Hex 1-1/4-12  
EM14810...............Jolter Spring  
EM14845...............Clamp Arm  
EM135...................Bolt  
EM14810  
EM451  
EM14841-1  
EM14819-2  
EM14841-1  
bly  
9  
ment on all new C-  
30HD models as of March 1989.  
PAGE 78 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — SERVICE INFORMATION MANUFACTURING CHANGES  
NEW ROCKER ARM ASSEMBLY PART NO. EM14846  
es with Plaster Pump  
Standard Equipment on all new C-30HD  
models as of July 1, 1990  
Part No. EM20342  
Old Rocker Arm Assembly  
Interchanges with Plaster Pump.  
NO LONGER AVAILABLE.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 79  
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C-30HD — SERVICE INFORMATION MANUFACTURING CHANGES  
bly  
28  
EM20714  
EM20715  
ENGINE RPM (GAS)  
IDLE  
MAX.  
950 RPM  
2525 RPM +/- 85  
+/- 50  
ENGINE RPM (DIESEL)  
IDLE  
MAX.  
1050 RPM +/- 50  
2525 RPM +/- 25  
into the  
own.The  
he tube  
he clamp  
olenoid  
and the  
spring completely compressed. Then allow the  
spring to push the solenoid back through the clamp  
0.75 inch and tighten the clamp. The solenoid is not  
adjusted. Be sure to coat the rod and tube with  
grease.  
PAGE 80 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — SERVICE INFORMATION: REMOTE CONTROL  
1.Turn Bell Crank on carburetor with Swivel End up.Bell Crank  
2. Drill .156 dia. hole through Bell Crank swivel on Throttle  
side of carburetor. Insert Rod & Spring assembly P/N  
EM14729 and fasten with cotter pin. Carburetor  
3. Insert linkage P/N EM20714 into Bell Crank on solenoid  
side of carburetor and fasten with nut.  
4. Insert linkage P/N EM20714 into extension on Remote  
Control unit and bolt bracket P/N EM20704  
on clutch side of engine.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 81  
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C-30HD — REMOTE CONTROL SCHEMATIC  
PAGE 82 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — REMOTE CONTROL SCHEMATIC  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 83  
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C-30HD — SERVICE INFORMATION LINKAGE ADJUSTMENT — OLD STYLE SOLENOID  
(OBSOLETE)  
SIDEVIEW FROM STARTER SIDE OF ENGINE  
EM14706  
EM16701  
EM26315  
EM26730  
P/N EM26730  
EM14707  
EM14708  
Important  
Adjust linkage as follows:  
1. Energize the solenoid which will“bottom”the solenoid  
plunger.  
2. Screw eyebolt into bell crank swivel until all slack is  
removed from chain, and “idle set screw” is full idle  
position. Note: Remove gas line to carburetor to permit  
easy installation of eye bolt in bell crank.  
3. Tighten jam-nut to prevent eye bolt from unscrewing.  
PAGE 84 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — SERVICE INFORMATION:TORQUE LIMITER (MODEL C30-SP ONLY)  
(Overload Safety Device Installed on Screw Conveyor  
Shaft)  
While pumping, if the Screw Conveyor at the bottom of the  
hopper is fouled or stopped because of rocks, theTorque Limit  
slips to prevent chain breakage.  
If this condition exists, stop the pump and rotate the large  
pulley by hand in reverse direction to free the Screw.  
If the rock blockage is severe, it may be necessary to  
disconnect the Drive Chain and turn the Screw Conveyor Shaft  
using a wrench at the end nearest to the Jolter Cam.  
Reconnect the chain and resume pumping.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 85  
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C-30HD — SERVICE INFORMATION: BEARING INSTALLATION  
After the cam bushing is installed as per instructions below,  
remove the three “dog type” allen set screws (B) to allow  
detents to be drilled. Use a 9/32” drill to “detent” half (minimum  
1/8” deep).Then “chase” the threads with a 3/8-16 bottom tap  
and blow out the chips after drilling, to be certain that the “dog  
type” allen set screws bottom in the detents to prevent the  
taper bushing from sliding laterally. If this procedure is not  
followed closely the heavy loading of the bearing during  
pumping operations causes the Timken cone bearings to  
create lateral forces which will move the taper bushing and  
allow the Timken cone bearings to separate from the race  
and subsequently fail.  
Caution: Position the‘O’ring on the O.D.of the bearing spacer  
during assembly to assure proper bearing adjustment.  
Note: It is important that the bearing assembly is installed  
properly.  
1. Install the bearing components on the crankshaft making  
full contact with the back side of the crank disc as indicated by  
the symbol .  
*
2. Install the bushing in the cam weldment and slide it onto  
the crankshaft until contact is made with the bearing spacer.  
3. Tighten the 3 allen socket head screws “A” while exerting  
pressure on the bushing towards the bearing spacer.  
4. Drill (detent) the shaft under the allen set screws “B” to  
prevent the bushing from the sliding away from the bearning  
spacer when the pump is under a load.  
PAGE 86 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD —SERVICE INFORMATION CONNECTING ROD ASSEMBLY EM20328T (NEW STYLE)  
NOTE: Inspect the bolt regularly as it  
must remain tight to hold the bearing  
assebly on the crabk throw pin.  
(EM104)  
(EM602)  
EM20335-  
EM20338 —  
EM20336-  
EM20364-  
EM20336 —  
EM20337 —  
EM20333-  
EM20816-  
EM20816 —  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 87  
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C-30HD —SERVICE INFORMATION:CONCRETE PISTON HEAD LUBRICATION SYSTEM  
Illustration represents the oil  
pressurized system (oil pump)  
The Mayco model C30-HD pump is the only pump available  
2. Lubrication box — We recommend utilizing soluble type oil  
(water and oil mixture). The oil level should be periodically  
checked and maintained at a height of 5 inches or one-half of  
the cylinder height.  
utilizing a direct oil pressurized system (oil pump) and enclosed  
lubrication box. This combination will prolong the piston cup  
life and meet environmental standards.  
1. Oil injection system — Check the reservoir every 8 hours.  
Use a good grade of SAE 30 oil. *Note: Use SAE 10 wt. in cool  
weather. When the piston cups are new, open the metering  
valves to full open or approximately 15 drops of oil per minute  
drip from the rear of each cylinder. (For the first 25 yards)  
*Note:IMPORTANT! During freezing temperatures, completely  
drain the water box and cover hopper.  
As the piston cups naturally wear, fine cement particles will  
accumulate in the box. Once the concrete paste reaches a  
height of 3/4 inches from the bottom, the box should be drained  
and cleaned, and the pump should be serviced.  
*Note: If preferred, the oil pump may be disconnected. (Contact  
Mayco Service Department)  
PAGE 88 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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C-30HD — SERVICE INFORMATION RETURN SPRING ADJUSTMENT PROCEDURE  
be free to move.  
The above return spring is installed to eliminate shock  
and stress between the cam roller and the cam weldment  
when the pump is in operation. If spring EM14333 is  
removed or replaced for any reason, maintain the backing  
plate dimension as shown to produce proper pre-loading  
of the spring for a smooth performance.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 89  
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C-30HD — SERVICE INFORMATION BELT AND CHAIN ADJUSTMENT  
PULLEY  
LOCK NUTS  
PUSHER  
BOL  
TS  
CHAIN  
BELTS  
3/4" MAX.  
DEFLECTION  
PUSHER BOL  
T BRA  
CKET  
1. Loosen the pillow bearing bolts only to the point where the  
bolts will remain snug.  
6. Drive belts should be regularly adjusted to prevent slippage.  
To adjust the belts, loosen the engine mounting bolts and  
move the engine until there is a maximum 3/4" deflection in  
the belts, retighten the engine mounting bolts.  
2. Unlock the two pusher bolt lock nuts.  
3. Turn each pusher bolt clockwise an equal amount until the  
chain is to proper adjustment of approximately 3/8" to 1/2”  
slack in the chain. It is very important that the pulley side and  
the chain side (pillow block bearings) are within 1/16” of an  
equal distance.  
7. Frequent inspections should be made on all drive  
components to make certain that all bolts and nuts remain  
tight.  
4. This distance can be checked by using a tape measure or  
a straight edge ruler, measuring from the inside of the pusher  
bolt bracket to the face of the pillow block bearing.  
NOTE:  
PRIORTO ADJUSTING CHAIN — PLACETHE  
LOBE OFTHE CAM INTHE DOWN POSITION.  
THE CHAIN SHOULD HAVE 83 RIVITS  
INCLUDES (ONE EACH, HALF LINK AND FULL  
LINK)  
5. The drive chain should be adjusted regularly to remove all  
slack. Once all slack is removed, do not over-adjust, as this  
will overload the shaft bearings. A slack chain on the crank  
drive creates backlash and shock loads on the shafts and  
bearings which results in shorter wear/life of the drive  
components.Lubricate the chain regularly.Note-it is advisable  
to carry a spare chain and master links for replacement in the  
field if necessary.  
PAGE 90 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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ROLLER CHAIN — APPLICATION INFORMATION  
Roller chain properly selected, installed and maintained is an  
The chain should be installed so the slack span is properly tensioned.  
To check chain tension, turn one sprocket to tighten the upper span  
of the chain while holding the other sprocket fixed.The lack span  
should have 4-6% of span length in the mid-span movement for  
horizontal drives and 2-3% for vertical drives.  
extremely versatile means of power transmission. It is possible,  
however, to greatly reduce a chain’s life and even induce failure if  
the chain is abused through improper installation, operating or  
maintenance procedures.In certain applications, failure can lead to  
personal injury or property damage.  
Recommendations and comments on how to get the most from  
your roller chain drive are given on the following pages.  
WORKING LOADS  
UTS-UltimateTensile Strength-is the one time pull required to break  
the chain.TheTensile Strength figures given in the Diamond catalog  
are not allowed working loads. For single strand chain, the load  
(pull) applied to the chain in service should never exceed 1/6th of  
the UTS for the chain being used except as noted below.  
A roller chain’s capacity can be significantly reduced if it is twisted  
or bent sideways in the direction of the pin axis.Exercise particular  
care in alignment of hoist or other applications where loads are  
suspended near personnel.  
It is possible to exceed the allowable working loads for a limited  
number of cycles, but you should contact Diamond Chain Company  
before this is considered. A roller chain should never be loaded  
above 50% of UTS for even one cycle.To do so will damage  
the chain structure and reduce its capacity.  
LUBRICATION  
As a chain articulates in entering and leaving a sprocket, there is  
relative movement between pin and bushing surfaces. These  
surfaces wear causing chain elongation. If a lubricant film can  
be maintained between the pin and bushing, the wear rate is  
very slow and the chain wear life very long. Maintaining the oil  
film is relatively simple at low speeds but becomes increasingly  
difficult as the speed increases.  
The UTS or one time breaking load of multiple strand chain is the  
UTS of a single strand chain times the number of strands; i.e., two  
strand chain is twice as strong as single.  
When allowable working loads are considered, however, the  
capacity of each strand in a multiple strand chain is only 65% of the  
single strand rating; thus, three-strand chain would rate not three  
times single but only 1.95 times. This is because the chain load  
cannot be exactly distributed across all three strands of the three-  
strand chain.  
It is recognized that good lubrication is not possible in many  
applications, so shorter wear life must be accepted in these  
situations.  
In general, chain wear leads to rough or unsatisfactory service  
prior to actual chain breakage. Good lube can help to prevent  
chain failure by providing protection against rust or corrosion.  
Rusting can allow pits to form in the surfaces of the chain parts  
causing stress concentration points. This can lead to chain  
failure at relatively low  
INSTALLATION AND DRIVE ALIGNMENT  
loads.  
The clearance between  
pin and bushings is very  
small, on the order of  
.003 to .005 inches. A  
lubricant must be thin  
Chain and sprockets must be installed correctly.Sprockets must be  
properly aligned and sprocket shafts must be parallel so the drive  
will run in a plane perpendicular to them. Axial alignment should be  
checked with a straight edge which will extend across the finished  
sides of the sprockets.They should be true-running with minimum  
wobble and eccentricity. The higher the drive speed, the more  
important these details become.  
enough to flow into the  
chain. SAE 30 weight oil  
is about right for room  
temperature. Lighter oil  
should be used for lower  
ambients and heavier  
for higher operating temperatures. Grease should not be used  
as it cannot penetrate chain clearances.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 91  
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DIAMOND CHAIN COMPANY — ROLLER CHAIN APPLICATION INFORMATION  
WHEN DISASSEMBLING OR ASSEMBLING CHAINS:  
WARNING:—The components of a chain are hardened parts.  
WARNING  
Striking these parts may cause metal chips to break off from  
the chain or the tools used resulting in personal injury.During  
all stages of chain disassembly and assembly, wear safety  
glasses to prevent metal parts or chips from entering your  
eyes and have personnel in the immediate area do likewise.  
A. Pin Removal  
1) If chain is of cotter pin- type construction, remove cotters.  
2) If chain is riveted type construction, grind pin heads off so  
pin ends are flush with the linkplate.  
3) Drive pins out of linkplate using a Diamond pin extractor  
Model #113 or 135. Some multiple strand chains or large  
pitch models will require a hammer and punch or a press to  
remove the pins.  
B. Installation of Coversides  
Diamond coversides are manufactured three different ways:  
(1) Slip Fit, (2) Modified Press Fit, and (3) Full Press Fit.  
Modified and Full Press Fits require some patience and tools  
to assemble and/or disassemble. Use vice grips, plumbers  
pliers or a small hammer to drive coversides onto pins.  
C. Installation of Spring Locks and Cotterpins  
WHEN INSTALLING CHAIN DRIVES ON EQUIPMENT:  
After coversides have been installed, install spring locks or  
cotters (depending on chain design). Avoid using bent or  
worn cotters or spring locks. After spring locks (or cotters)  
are installed, lightly tap pin ends to position these parts snug  
against the coverside for additional support.  
WARNING — You may be seriously injured if you attempt to  
install chain on equipment under power. Shut off power and  
lock out gears and sprockets before attempting installation.  
Once installed, the chain drive must be guarded to prevent  
personal injury or properly damage in the event the chain  
separates during operation. If chain drive is not guarded,  
contact equipment manufacturer for recommendations on  
guarding before using equipment.  
Knowing more about how the chain is constructed may help  
in assembly and disassembly. Further information may be  
obtained by calling or writing Diamond Chain Company.  
PAGE 92 — C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01)  
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Effective: July 1, 2000  
TERMS AND CONDITIONS OF SALE —PARTS  
PAYMENTTERMS  
4. Freight is at the sender’s expense. All  
partsmustbereturnedfreightprepaidto  
Multiquip’sdesignatedreceivingpoint.  
PRICINGANDREBATES  
Terms of payment for parts are net 10 days.  
Prices are subject to change without prior  
notice.Pricechangesareeffectiveonaspecific  
dateandallordersreceivedonorafterthatdate  
willbebilledattherevisedprice.Rebatesfor  
price declines and added charges for price  
increaseswillnotbemadeforstockonhand  
atthetimeofanypricechange.  
5. Parts must be in new and resalable  
condition,intheoriginalMultiquippackage  
(ifany),andwithMuiltiquippartnumbers  
clearlymarked.  
FREIGHTPOLICY  
All parts orders will be shipped collect or  
prepaidwiththechargesaddedtotheinvoice.  
All shipments are F.O.B. point of origin.  
Multiquip’s responsibility ceases when a  
signedmanifesthasbeenobtainedfromthe  
carrier,andanyclaimforshortageordamage  
mustbesettledbetweentheconsigneeandthe  
carrier.  
6. Thefollowingitemsarenotreturnable:  
Multiquipreservestherighttoquoteandsell  
directtoGovernmentagencies,andtoOriginal  
EquipmentManufactureraccountswhouse  
our products as integral parts of their own  
products.  
a. Obsolete parts.(If an item is listed  
in the parts price book as being  
replaced by another item, it is  
obsolete.)  
b. Any parts with a limited shelf life  
(such as gaskets, seals, “O” rings,  
andotherrubberparts)thatwere  
purchasedmorethansixmonths  
priortothereturndate.  
MINIMUMORDER  
SPECIALEXPEDITINGSERVICE  
TheminimumchargeforordersfromMultiquip  
is $15.00 net. Customers will be asked for  
instructionsregardinghandlingofordersnot  
meetingthisrequirement.  
A$20.00to$50.00surchargewillbeaddedto  
theinvoiceforspecialhandlingincludingbus  
shipments, insured parcel post or in cases  
where Multiquip must personally deliver the  
partstothecarrier.  
c. Anylineitemwithanextendeddealer  
netpriceoflessthan$5.00.  
d. Special order items.  
RETURNEDGOODSPOLICY  
e. Electricalcomponents.  
LIMITATIONSOFSELLER’SLIABILITY  
Returnshipmentswillbeacceptedandcredit  
will be allowed, subject to the following  
provisions:  
f.  
Paint,chemicals,andlubricants.  
Multiquip shall not be liable here under for  
damagesinexcessofthepurchasepriceofthe  
item with respect to which damages are  
claimed, and in no event shall Multiquip be  
liable for loss of profit or good will or for any  
other special, consequential or incidental  
damages.  
g. Decalsandpaperproducts.  
h. Itemspurchasedinkits.  
1. AReturnedMaterialAuthorizationmust  
beapprovedbyMultiquippriortoshipment.  
7. Thesenderwillbenotifiedofanymaterial  
receivedthatisnotacceptable.  
2. ToobtainaReturnMaterialAuthorization,  
alistmustbeprovidedtoMultiquipParts  
Sales that defines item numbers,  
quantities,anddescriptionsoftheitems  
tobereturned.  
8. Such material will be held for 5 working  
days from notification, pending  
instructions. If a reply is not received  
within5days,thematerialwillbereturned  
tothesenderathisexpense.  
LIMITATIONOFWARRANTIES  
a. Thepartsnumbersanddescriptions  
mustmatchthecurrentpartsprice  
list.  
Nowarranties,expressorimplied,aremade  
in connection with the sale of parts or trade  
accessories nor as to any engine not  
manufacturedbyMultiquip.Suchwarranties  
made in connection with the sale of new,  
complete units are made exclusively by a  
statement of warranty packaged with such  
units, and Multiquip neither assumes not  
authorizes any person to assume for it any  
other obligation or liability whatever in  
connectionwiththesaleofitsproducts.Apart  
fromsuchwrittenstatementofwarranty,there  
arenowarranties,express,impliedorstatutory,  
which extend beyond the description of the  
productsonthefacehereof.  
9. Creditonreturnedpartswillbeissuedat  
dealer net price at time of the original  
purchase,lessa15%restockingcharge.  
b. Thelistmustbetypedorcomputer  
generated.  
10. In cases where an item is accepted for  
which the original purchase document  
can not be determined, the price will be  
basedonthelistpricethatwaseffective  
twelvemonthspriortotheRMAdate.  
c. Thelistmuststatethereason(s)for  
thereturn.  
d. The list must reference the sales  
order(s)orinvoice(s)underwhich  
theitemswereoriginallypurchased.  
11. Credit issued will be applied to future  
purchasesonly.  
e. Thelistmustincludethenameand  
phonenumberoftheperson  
requestingtheRMA.  
3. A copy of the Return Material  
Authorizationmustaccompanythereturn  
shipment.  
C-30HD — PARTS & OPERATION MANUAL — REV. #4 (03/06/01) — PAGE 93  
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PARTS AND OPERATION MANUAL  
HERE'S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL NUMBER  
ON-HAND WHEN CALLING  
PARTS DEPARTMENT  
800-427-1244 or 310-537-3700  
FAX: 800-672-7877 or 310-637-3284  
SERVICE DEPARTMENT/TECHNICAL ASSISTANCE  
800-478-1244 or 310-537-3700  
FAX: 310- 537-4259  
WARRANTY DEPARTMENT  
888-661-4279, or 310-661-4279  
FAX: 310- 537-1173  
MAIN  
800-421-1244 or 310-537-3700  
FAX: 310-537-3927  
MULTIQUIP INC.  
POST OFFICE BOX 6254  
CARSON, CA 90749  
310-537-3700 • 800-421-1244  
FAX:310-537-3927  
E-MAIL:mq@multiquip.com  
WWW:multiquip.com  
Atlanta • Boise • Dallas • Houston • Newark  
Quebec, Canada • Manchester, UK • Rio De Janiero, BR • Guadalajara, MX  
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