Stow Mixer MS120H13 User Manual
OPERATION AND PARTS MANUAL  
MODEL MS120H13  
MECHANICAL DUMP  
MODEL MS120HD13  
HYDRAULIC DUMP  
HYDRAULIC PLASTER/MORTAR MIXERS  
(HONDA GX390 GASOLINE ENGINE)  
Revision #0 (07/10/08)  
To find the latest revision of this  
publication, visit our website at:  
www.stowmfg.com  
THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.  
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SILICOSIS/RESPIRATORY WARNINGS  
WARNING WARNING  
SILICOSIS WARNING  
RESPIRATORY HAZARDS  
Grinding/cutting/drilling of masonry, concrete, metal and  
other materials with silica in their composition may give  
off dust or mists containing crystalline silica. Silica is a  
basic component of sand, quartz, brick clay, granite and  
numerous other minerals and rocks. Repeated and/or  
substantial inhalation of airborne crystalline silica can  
cause serious or fatal respiratory diseases, including  
silicosis. In addition, California and some other  
authorities have listed respirable crystalline silica as a  
substance known to cause cancer. When cutting such  
materials, always follow the respiratory precautions  
mentioned above.  
Grinding/cutting/drilling of masonry, concrete, metal and  
other materials can generate dust, mists and fumes  
containing chemicals known to cause serious or fatal  
injury or illness, such as respiratory disease, cancer,  
birth defects or other reproductive harm. If you are  
unfamiliar with the risks associated with the particular  
process and/or material being cut or the composition of  
the tool being used, review the material safety data  
sheet and/or consult your employer, the material  
manufacturer/supplier, governmental agencies such as  
OSHA and NIOSH and other sources on hazardous  
materials. California and some other authorities, for  
instance, have published lists of substances known to  
cause cancer, reproductive toxicity, or other harmful  
effects.  
Control dust, mist and fumes at the source where  
possible. In this regard use good work practices and  
follow the recommendations of the manufacturers or  
suppliers, OSHA/NIOSH, and occupational and trade  
associations. Water should be used for dust  
suppression when wet cutting is feasible. When the  
hazards from inhalation of dust, mists and fumes cannot  
be eliminated, the operator and any bystanders should  
always wear a respirator approved by NIOSH/MSHA for  
the materials being used.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 3  
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TABLE OF CONTENTS  
MS120 Hydraulic Mixer  
Honda GX390K1QA2/  
Proposition 65 Warning ........................................... 2  
Silicosis/Respiratory Warnings ................................ 3  
Table of Contents .................................................... 4  
Parts Ordering Procedures ..................................... 5  
Safety ................................................................... 6-7  
Rules and Regulations ....................................... 8-10  
Towing Guidelines ................................................. 11  
Safety Chain Connection ...................................... 12  
Specifications ........................................................ 13  
Dimensions ........................................................... 14  
General Information .............................................. 15  
Mixer Components........................................... 16-17  
Hydraulic Components.......................................... 17  
Engine Components ............................................. 18  
Paddle Blade Adjustment ...................................... 19  
Inspection......................................................... 20-21  
Initial Start-Up .................................................. 22-23  
Operation ......................................................... 23-24  
Shut-Down ............................................................ 25  
Maintenance (Engine)...................................... 26-27  
Maintenance (Mixer) ........................................ 28-31  
Storage ................................................................. 31  
Troubleshooting (Engine)................................. 32-33  
Troubleshooting (Mixer) ........................................ 34  
Hydraulic System Diagram ................................... 35  
Explanation of Code In Remarks Column............. 36  
Suggested Spare Parts ......................................... 37  
Component Drawings  
GX390U1QA2 Engine  
Honda Engine Assembly .................................. 54-55  
Air Cleaner Assembly....................................... 56-57  
Camshaft Assembly ......................................... 58-59  
Piston Assembly............................................... 60-61  
Crankcase Cover Assembly............................. 62-63  
Crankshaft Assembly ....................................... 64-65  
Cylinder Barrel Assembly................................. 66-67  
Cylinder Head Assembly .................................. 68-69  
Fan Cover Assembly ........................................ 70-71  
Flywheel Assembly .......................................... 72-73  
Ignition Coil Assembly ...................................... 74-75  
Carburetor Assembly ....................................... 76-77  
Muffler Assembly ............................................. 78-79  
Recoil Starter Assembly................................... 80-81  
Control Assembly ............................................. 82-83  
Fuel Tank Assembly ......................................... 84-85  
Gasket Kit Assembly ........................................ 86-87  
Labels Assembly .............................................. 88-89  
Terms and Conditions of Sale — Parts ................. 90  
Nameplate and Decals..................................... 38-39  
Paddle Blades Assembly .................................. 40-41  
Steel Drum Assembly (Manual) ....................... 42-43  
Steel Drum Assembly (Hydraulic) .................... 44-45  
Paddle Shaft Assembly .................................... 46-47  
Hydraulic Assembly.......................................... 48-49  
Frame Assembly .............................................. 50-51  
Steel Engine Cover Assembly.......................... 52-53  
In accordance with our established policy of  
constant improvement, we reserve the right to  
amend these specifications at any time without  
notice.  
Specifications and part numbers are  
subject to change without notice.  
PAGE 4 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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PARTS ORDERING PROCEDURES  
Ordering parts has never been easier!  
Choose from three easy options:  
Effective:  
January 1st, 2006  
Order via Internet (Dealers Only)  
Orderpartson-lineusingMultiquip’sSmartEquipwebsite!  
:
If you have an MQ Account, to obtain a  
Username and Password, E-mail us at:  
parts@multiquip.com.  
■
■
■
View Parts Diagrams  
Order Parts  
PrintSpecificationInformation  
To obtain an MQ Account, contact your  
District Sales Manager for more information.  
Use the internet and qualify for a 5% Discount  
on Standard orders for all orders which include  
complete part numbers.*  
Gotowww.multiquip.comandclickon  
to log in and save!  
Order Parts  
Note: Discounts Are Subject To Change  
Fax your order in and qualify for a 2% Discount  
on Standard orders for all orders which include  
complete part numbers.*  
Order via Fax (Dealers Only)  
:
All customers are welcome to order parts via Fax.  
Domestic (US) Customers dial:  
1-800-6-PARTS-7 (800-672-7877)  
Note: Discounts Are Subject To Change  
Domestic (US) Dealers Call:  
1-800-427-1244  
Order via Phone:  
Non-Dealer Customers:  
International Customers should contact  
their local Multiquip Representatives for  
Parts Ordering information.  
Contact your local Multiquip Dealer for  
parts or call 800-427-1244 for help in  
locating a dealer near you.  
When ordering parts, please supply:  
❒
Dealer Account Number  
❒
Specify Preferred Method of Shipment:  
✓
UPS/Fed Ex  
✓ DHL  
❒
❒
❒
❒
❒
Dealer Name and Address  
■
■
Priority One  
Ground  
✓
Truck  
Shipping Address (if different than billing address)  
Return Fax Number  
■ Next Day  
Applicable Model Number  
■
Second/ThirdDay  
Quantity, Part Number and Description of Each Part  
AllordersaretreatedasStandard Orders  
andwillshipthesamedayifreceivedprior  
to 3PM PST.  
WE ACCEPT ALL MAJOR CREDIT CARDS!  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 5  
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SAFETY  
FORYOUR SAFETY AND SAFETY OF OTHERS!  
HAZARD SYMBOLS  
Safety precautions should be followed at all  
times when operating this equipment. Failure  
to read and understand the Safety Messages  
and Operating Instructions could result in injury  
to yourself and others.  
Potential hazards associated with the operation of this  
equipment will be referenced with Hazard Symbols which  
appear throughout this manual, and will be referenced in  
conjunction with Safety Message Alert Symbols.  
WARNING — Lethal Exhaust Gas Hazards  
Engine fuel exhaust gases contain poisonous  
carbon monoxide. This gas is colorless and  
odorless, and can cause death if inhaled.  
NEVER operate this equipment in a confined  
area or enclosed structure that does not  
provide ample free flow air.  
This manual has been developed to  
provide complete instructions for the  
safe and efficient operation of this  
equipment. Refer to the engine  
manufacturer's instructions for data  
relative to its safe operation.  
Before using this equipment ensure that the operating  
individual has read and understood all instructions in this  
manual.  
WARNING — Explosive Fuel Hazards  
Fuel is extremely flammable and its  
vapors can cause an explosion if ignited.  
DO NOT start the engine near spilled fuel  
or combustible fluids.  
SAFETY MESSAGE ALERT SYMBOLS  
The three Safety Messages shown below will inform you  
about potential hazards that could injure you or others. The  
Safety Messages specifically address the level of exposure  
to the operator, and are preceded by one of three words:  
DANGER,WARNING, or CAUTION.  
DO NOT fill the fuel tank while the engine  
is running or hot. DO NOT overfill tank, since spilled  
fuel could ignite if it comes into contact with hot engine  
parts or sparks from the ignition system. Store fuel in  
approved containers, in well-ventilated areas and away  
from sparks and flames.  
DANGER  
You WILL be KILLED or SERIOUSLY INJURED if you  
DO NOT follow these directions.  
WARNING — Burn Hazards  
Engine components can generate extreme  
heat. To prevent burns, DO NOT touch  
these areas while the engine is running or  
immediately after operation. Never operate  
the engine with heat shields or heat guards  
removed.  
WARNING  
You CAN be KILLED or SERIOUSLY INJURED if you  
DO NOT follow these directions.  
WARNING — Respiratory Hazards  
CAUTION  
ALWAYS wear approved respiratory  
protection when required.  
You CAN be INJURED if you DO NOT follow these  
directions.  
PAGE 6 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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SAFETY  
CAUTION — Rotating Parts Hazards  
CAUTION — Overspeed Conditions  
NEVER operate equipment with covers or  
guards removed. Keep fingers, hands, hair  
and clothing away from all moving parts  
to prevent injury.  
NEVER tamper with the factory setting of  
the engine governor. Personal injury and  
equipment damage can result if operating  
in speed ranges above the maximum  
allowable.  
CAUTION — Equipment Damage Hazards  
CAUTION — Accidental Starting Hazards  
Other important messages are provided throughout this  
manual to help prevent damage to your equipment, other  
property, or the surrounding environment.  
ALWAYS place the equipment ON/OFF  
switch in the OFF position when the  
equipment is not in use.  
CAUTION — Start/Stop Switch  
CAUTION — Eye and Hearing Hazards  
ALWAYS test the start/stop switch for the gasoline  
engine every time the engine is started.  
ALWAYS wear approved eye and hearing  
protection.  
WARNING — Stand Clear of Mixer  
Always stand clear of the dump handle when the mixer  
is in operation. Any binding of material between the mixer  
blades and the drum will cause the drum handle to  
quickly move and could cause bodily harm.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 7  
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RULES AND REGULATIONS  
„
„
NEVER touch the hot exhaust manifold,  
muffler or cylinder.Allow these parts to cool  
before servicing engine or pump.  
WARNING — Read This Manual  
Failure to follow instructions in this manual may lead to  
serious injury or even DEATH! This equipment is to be  
operated by trained and qualified personnel only! This  
equipment is for industrial use only.  
ALWAYS allow the engine to cool before  
adding fuel or performing service and maintenance  
functions. Contact with hot components can cause  
serious burns.  
GENERAL SAFETY  
„
NEVER operate this equipment in any enclosed or narrow  
area where free flow of the air is restricted. The engine  
of this equipment requires an adequate free flow of  
cooling air. If the air flow is  
restricted it will cause serious  
damage to the equipment or  
engine and may cause injury  
to people and property.  
Remember the engine gives  
„
„
„
DO NOT operate or service this equipment  
before reading this entire manual.  
This equipment should not be operated by  
persons under 18 years of age.  
NEVER operate this equipment without proper protective  
clothing, shatterproof glasses, steel-toed boots and other  
protective devices required by the job.  
off DEADLY gases.  
„
„
ALWAYS refuel in a well-ventilated area, away from  
sparks and open flames.  
„
„
NEVER operate this equipment when not  
feeling well due to fatigue, illness or when  
under medication.  
ALWAYS use extreme caution when working with  
flammable liquids.When refueling, stop the engine and  
allow it to cool.  
NEVER operate this equipment under the  
influence of drugs or alcohol.  
„
„
DO NOT smoke around or near the  
equipment. Fire or explosion could result  
from fuel vapors, or if fuel is spilled on a  
hot engine.  
NEVER operate the equipment in an  
explosive atmosphere or near combustible  
materials. An explosion or fire could result  
causing severe bodily harm or even  
death.  
„
NEVER disconnect any "emergency or safety  
devices".These devices are intended for operator safety.  
Disconnection of these devices can cause severe injury,  
bodily harm or even death! Disconnection of any of these  
devices will void all warranties.  
„
„
„
„
„
DO NOT top-off fuel tank.Topping-off is dangerous as it  
causes fuel to spill.  
„
„
NEVER use accessories or attachments that are not  
recommended by Stow for this equipment. Damage to  
the equipment and/or injury to user may result.  
ALWAYS store the equipment in a clean, dry location  
out of the reach of children.  
NEVER run engine without air cleaner or air filter.Severe  
engine damage may occur.  
Manufacturer does not assume responsibility for any  
accident due to equipment modifications. Unauthorized  
equipment modification will void all warranties.  
NEVER leave the equipment unattended with the engine  
running.Turn off engine when unattended.  
„
„
Whenever necessary, replace nameplate, operation and  
safety decals when they become difficult read.  
CAUTION must always be observed while servicing this  
equipment.Rotating parts can cause injury if contacted.  
ALWAYS check the equipment for loosened threads or  
bolts before starting.  
PAGE 8 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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RULES AND REGULATIONS  
„
When towing, an adequate safety chain must be  
fastened to the frame. See Towing Guidelines section in  
this manual.  
WARNING — Manual Dump Drum Handle  
Always stand clear of dump handle when equipment is in  
operation.  
„
„
„
„
Keep all inexperienced and unauthorized people away  
from the equipment at all times.  
TRANSPORTING  
Unauthorized equipment modifications will void all  
warranties.  
„
„
ALWAYS shutdown engine before transporting.  
Tighten fuel tank cap securely and close fuel cock to  
prevent fuel from spilling.  
Check all fasteners periodically for tightness. Also check  
towing tongue bolt, lock nut and wheel lug nuts for wear.  
„
Drain fuel when transporting equipment over long  
distances or bad roads.  
Stop the engine and disconnect the spark plug before  
allowing anybody’s hands in the mixing drum.  
MAINTENANCE SAFETY  
„
„
NEVER pour or spray water over the engine.  
„
NEVER lubricate components or attempt service on a  
running machine.  
When towing, an adequate safety chain must be  
fastened to the frame. See Towing Guidelines section in  
this manual.  
„
ALWAYS allow the machine a proper amount of time to  
cool before servicing.  
„
„
„
„
Keep all inexperienced and unauthorized people away  
from the equipment at all times.  
„
„
Keep the equipment in proper running condition.  
Unauthorized equipment modifications will void all  
warranties.  
Fix damage to the equipment immediately and always  
replace broken parts.  
Check all fasteners periodically for tightness. Also check  
towing tongue bolt, lock nut and wheel lug nuts for wear.  
„
Dispose of hazardous waste properly. Examples of  
potentially hazardous waste are used motor oil, fuel and  
fuel filters.  
Stop the engine and disconnect the spark plug before  
allowing anybody’s hands in the mixing drum.  
„
„
DO NOT use food or plastic containers to dispose of  
hazardous waste.  
„
„
NEVER pour or spray water over the engine.  
DO NOT pour waste, oil or fuel directly onto the ground,  
down a drain or into any water source.  
Depending on type of mixer, test the ON/OFF switch for  
the gasoline enginebefore operating.The purpose of these  
switches is to shut down the engine or motor of the mixer  
„
ALWAYS stand clear of the release drum lock. Move  
handle downward to empty the drum. Move handle upward  
to return to vertical position. Inspect for proper  
functionality before starting engine or engaging blades.  
Any binding of material between the mixing blades &  
drum will cause the handle to quickly rotate if not in the  
"up & locked" position.  
„
„
DO NOT operate this equipment unless all guards and  
safety devices are attached and in place.  
Refer to the HONDA Engine Owner's Manual for engine  
technical questions or information recommended by Stow  
for this equipment. Damage to the equipment and/or injury  
to user may result.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 9  
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RULES AND REGULATIONS  
EMERGENCIES  
„
„
„
ALWAYS know the location of the nearest  
fire extinguisher.  
ALWAYS know the location of the nearest  
first aid kit.  
In emergencies, always know the location  
of the nearest phone or keep a phone on the job site.  
Also know the phone numbers of the nearest  
ambulance, doctor and fire department. This  
information will be invaluable in case of emergency.  
PAGE 10 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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TOWING GUIDELINES  
„
„
ALWAYS make sure that the fuel valve lever is in the  
TOWING SAFETY PRECAUTIONS  
OFF position (gasoline models only).  
CAUTION — InspectTowing Components  
Check wheel mounting lug nuts with a torque wrench.  
Torque wheel lug nuts as described in the maintenance  
section of this manual.  
To reduce the possibility of an accident while transporting  
the machine on public roads, always make sure that the  
equipment’s towing components and the towing vehicle  
are in good operating condition and both units are  
mechanically sound. Remember before towing, check with  
local and state laws for proper compliance.  
„
„
„
Check tightness of U-clamp nuts, torque suspension  
hardware as referenced in the maintenance section of this  
manual.  
Avoid sudden stops and starts.This can cause skidding,  
or jackknifing. Smooth, gradual starts and stops will  
improve gas milage.  
The following list of suggestions should be used when towing  
the mixer:  
„
Check with your county or state safety towing regulations  
Avoid sharp turns to prevent rolling.  
department before towing your mixer.  
Tow bar to vehichle connection (Coupler only)  
„
Make sure that the hitch and coupling of the towing  
vehicle are rated equal to, or greater than the trailer "gross  
vehicle weight rating" (GVWR).  
1. Check the vehicle hitch ball, and mixer's coupler for  
signs of wear or damage. Replace any parts that are  
worn or damaged before towing.  
„
„
ALWAYS inspect the hitch and coupling for wear.NEVER  
tow the mixer with defective hitches, couplings, chains  
etc.  
2. Use only a 2-inch ball diameter (towing vehicle), this will  
CAUTION — Replacing Towing Components  
CHECK the tire air pressure on both the towing vehicle  
and the trailer. Also check the tire tread wear on both  
vehicles.  
If the mixer tow bar is deformed or damaged, replace  
the entire tow bar.NEVER tow the mixer with a defective  
tow bar. There exists the possibility of the mixer  
separating from the towing vehicle.  
„
„
„
„
ALWAYS make sure the mixer is equipped with a “Safety  
Chain.”  
ALWAYS attach trailer's safety chain to the frame of  
towing vehicle.  
match the mixer's 2-inch coupler. Use of any other ball  
diameterwillcreateanextremelydangerousconditionwhich  
can result in separation of the coupler and ball or ball  
failure.  
ALWAYS make sure that the towing vehicle's directional,  
backup, and brake lights are working properly.  
3. After tow bar has been connected to mixer (see next page),  
attach mixer's coupler to the hitch ball on the towing vehicle  
securely and make sure the lock lever is in the down  
position (locked).  
Remember in most cases the maximum speed unless  
otherwise posted for highway towing is 55 MPH, however  
before towing your mixer, check your local state, and  
county vehicle towing requirements. Recommended off-  
road towing is not to exceed 10 or 15 MPH or less  
depending on type of terrain.  
MixerTow BarVehicle Connection (Pentle and Loop)  
1. Make sure the bumper on the towing vehicle is equipped  
to handle either a pintle or loop type tow bar configuration.  
„
Place chocked blocks underneath wheels to prevent  
rolling, while parked, if disconnected from towing  
vehicle.  
2. After tow bar has been connected to mixer (see next page),  
secure either type of tow bar to the towing vehicle, following  
state and county towing regulations.  
„
„
Inflate tires to correct pressure, inspect tires for cuts, and  
excessive wear.SeeTable 9 (Tire Wear Troubleshooting).  
3. As a minimum, use a 1/2-inch bolt and nylock nut grade 5  
when securing the tow bar to the towing vehicle and to  
the unit being towed.  
When towing of the mixer is required, place the drum in the  
up position (mouth facing upwards) and lock the drum latch.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 11  
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SAFETY CHAIN CONNECTION  
2. Route the safety chain through the holes just above  
the tow bar, located on each side of the mixer stand.  
CAUTION —Tow With Safety Chain  
NEVER! tow the mixer with the safety chain removed.  
The safety chain is intended to prevent complete  
separation of the mixer from the towing vehicle in the  
event of a tow bar failure.  
Loop the chain together and place under the tow bar.  
Secure the loop with the connector link.  
3. Extend the safety chain along the length of the tow  
bar, looping it through the tow bar's connector link.  
Remove any excess chain slack.  
Reference Figure 1 for the installation of the safety chain.  
4. Connect the free end of (clevis safety hook) the safety  
chain to the towing vehicle. Remember it is critical that  
the length of the chain be properly adjusted, to prevent  
the draw bar and the front of the mixer stand from  
dropping to the the ground (contact) in the event the  
draw bar becomes disconnected from the towing  
vehicle.  
TOW BARTO MIXER CONNECTION  
1. Insert the tow bar through the round opening at the  
bottom of the mixer stand.  
Align the hole on the tow bar with the hole on the mixer  
frame, and insert 1/2-inch bolt through tow bar and  
frame. Secure tow bar to frame with 1/2-inch nylock  
nut. Tighten to 40 ft.-lbs.  
If a new safety chain is required use P/N 13363.  
For a new connector link use P/N 01004.  
CAUTION — Drum Safety When Towing  
DO NOT tow the mixer unless the mixing drum is  
completely empty. ALWAYS make sure the drum lock  
lever (Figure 24) is in the verticle position (manual dump  
mixers only).  
Figure 1. Tow Bar and Safety Chain Installation  
PAGE 12 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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SPECIFICATIONS  
Table 1 Specifications Mixer  
Drum Capacity  
Discharge  
Height  
in. (cm.)  
Mixer Model  
Drum Capacity  
cu. ft (liters)  
94 lbs. (42 kg.)  
Bag Portland  
Cement  
Weight  
lbs. (kg.)  
L x W x H in. (cm.)  
Drive  
Dump Action  
From Stop  
84 x 56 x 62  
(213 x 142 x 157)  
MS120H13  
1,085 (492)  
1,400 (435)  
Manual  
STEEL  
12 (340)  
3.5 to 4  
18 (46)  
Hydraulic  
84 x 56 x 62  
(213 x 142 x 157)  
MS120HD13  
Hydraulic  
Stationary mixer no wheels. Height is adjustable from 54-67 in. (1.4-1.7 m)  
TABLE 2. SPECIFICATIONS (ENGINE)  
HONDA GX390K1QA2/  
Model  
GX390U1QA2  
Air-cooled 4 stroke,  
Type  
Horizontal  
Shaft Gasoline Engine  
3.46 in. X 2.51 in.  
(88 mm x 64 mm)  
Bore X Stroke  
Displacement  
Max Output  
389 cc. (23.7 cu-in)  
11.0 HP/3600 R.P.M  
9.0 HP/3600 R.P.M  
Continuous Output  
Fuel Tank  
Capacity  
1.7 US gals.  
(6.5 liters)  
Fuel  
Unleaded Gasoline  
1.16 qts (1.1 liters)  
Lube Oil Capacity  
Speed Control  
Method  
Centrifugal Fly-weight  
Type  
Starting Method  
Recoil Start  
Dimensions (L x W  
x H)  
14.0 x 16.9 X 16.1 in.  
(405 X 450 X 443 mm)  
Dry Net Weight  
68.3 lbs. (31.0 Kg.)  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 13  
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DIMENSIONS  
Table 3. Dimensions  
Description  
Dimensions in. (cm)  
Length  
(w/Tow Bar)  
67 in. (170 cm)  
Width  
50 in. (127 cm)  
56 in. (142 cm)  
Height  
Figure 2. Dimensions  
PAGE 14 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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GENERAL INFORMATION  
Application  
The Stow MS120 series hydraulic mixers (drum capacity  
12.0 cu. ft./340 liters) are shipped completely assembled  
and have been factory tested and are ready for use.  
This mixer is only intended for the mixing of plaster and  
mortar. The mixer must be used for its intended purpose  
and is not suitable for the mixing of flammable or explosive  
substances. The mixer must not be used in an explosive  
atmosphere.This mixer has a batch capacity between 3-1/  
2 and 4-1/2 bags.  
Power Plants  
These hydraulic mixers are powered by an 11 HP Honda  
GX390 air-cooled, 4-stroke gasoline engine.  
Table 4. Hardware Torque  
Recommendations  
Hardware  
Hardware  
Torque (ft-lbs)  
Diameter  
Check all hardware on the mixer before starting.Periodically  
inspect all hardware. Loose hardware can contribute to early  
component failure and poor performance. Use Table 4 as  
general guideline when torqueing of mixer hardware is  
required. Remember to keep all mixer hardware components  
tight.  
5/16-inch x 18  
3/8-inch x 16  
3/8-inch x 24  
1/2-inch x 13  
14  
24  
37  
39  
90  
Engine Maintenance  
1/2-inch x 13  
(Grade 8)  
For basic engine maintenance, refer to the engine  
maintenance section in this manual. For a more detailed  
engine maintenance, refer to the Honda Engine Owner's  
manual furnished with the engine.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 15  
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MIXER COMPONENTS  
9. Manual Dump Handle — Pull this handle downward  
to dump the contents of the drum. Push the handle  
upward to return the drum to its vertical position. This  
feature is not available on hydraulic dump models.  
10. Safety Grill Lock Handle —To prevent injury to hands  
and arms, the safety grill should ALWAYS be locked  
when the mixing of plaster or mortar is required. Also  
when transporting the mixer the safety grill should be  
locked.The safety grill should only be un-locked when  
cleaning of the blades and drum is required.  
11. Pivot Point/Zerk Fitting — There is a zerk grease  
fitting on each end of the mixing drum. These fittings  
lubricate the dumping mechanism. Lubricate both  
fittings at least twice a week.  
12. Drum Lock Lever — Rotate this lever horizontally to  
lock the drum for mixing. Rotate vertically to release  
the drum for dumping. This feature is not available on  
hydraulic dump models.  
Figure 3. Mixer Components (Wheels)  
Figures 3 and 4 illustrate the basic components and controls  
of the MS120 series hydraulic mixer  
1. Tires — Replace with manufacturer recommeded tires  
13. Mixing Drum — Mixing drums are available in two  
types of materials plastic and steel. Drum capacity is  
12 cu. ft (340 liters). Mixing materials such as mortar,  
plaster are to be placed into this drum for mixing.  
Always clean drum after each use.  
only. This mixer requires 13-inch 4-ply tires.  
2. Engine Cover — Lift this cover to gain access to the  
engine.  
3. ON/OFF Switch (gasoline) — This switch is provided  
on mixers with gasoline engines only and is located  
on the side of the engine cover. When activated it will  
shut down the engine.  
14. Tow Bar/Coupler — This mixer uses a 2-inch coupler  
or pintle towbar.  
15. Safety Chain — This mixer uses a 3/16-inch thick,  
72-inches long zinc-plated saftey chain. ALWAYS  
connect the safety chain when towing.  
4. Latch — Use this latch to secure the engine  
compartment enclosure.  
16. Chock Blocks — Place these blocks (not included as  
part of the mixer package) under each mixer wheel to  
prevent rolling.  
5. Drum Bearing — There is a sealed bearing on each  
end of the mixing drum. Bearings are packed and sealed  
at the factory and require no further maintenance.  
6. Mixing Paddles —This mixer uses plastic and rubber  
mixing paddles for the mixing of plaster and mortar.  
Always clean paddles after each use.  
7. Bag Cutter — This feature allows mixing bags to be  
opened easily, therefore allowing the contents of the  
bag to fall directly into the mixing drum.  
8. Safety Grill — Provided for operator safety.This safety  
grill is designed to keep hands and solid objects out of  
the mixing drum when in use.This grill should be closed  
at all times when mixer is in use. DO NOT remove the  
grill or grill opening bar.Keep the grill clean by washing  
it down daily.  
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MIXER COMPONENTS/HYDRAULIC COMPONENTS  
17  
18  
Figure 4. Mixer Components (Stationary)  
17. Adjustable Stabilizer Jack Stands — Use these jack  
stands (3) to adjust the mixer to the desired height.  
18. Forklift Pockets —When lifting of the mixer is required,  
use these fork lift pockets to lift the mixer. Remember  
to insert the forks of the forklift a minimum of 24 inches  
into the lift pockets.This feature is only available on  
the stationary mixer model.  
Figure 5. Hydraulic Components  
5. Hydraulic Dump Lever — This lever is provided on  
mixers with hydraulic dump capability only. Pull lever  
outward to activate dump cylinder.  
HYDRAULIC COMPONENTS  
Figure 5 illustrates the hydraulic components used on the  
mixer.  
6. Hydraulic Paddle Blade Lever — 3-position lever.  
Push inward for clockwise mixing rotation of blades.  
Place in center position for no rotation (neutral/off).  
1. Hydraulic Motor — Bi-directional hydraulic motor that  
is used in conjunction with the directional control valve  
to operate the hydraulic dump cylinder and paddle shaft.  
7. Pump — Supplies hydraulic fluid to the hydraulic  
control valve.  
2. Hydraulic Dump Cylinder — When activated, this  
cylinder will cause the mixing drum to rotate to the  
dump position.This cylinder is provided only on mixers  
with hydraulic dump capability only.  
8. Hydraulic Oil Filter — 10 micron hydraulic filter. Filters  
out small particles that are harmful to the hydraulic  
system.  
9. Strainer — Filters out large particles and debris that  
3. Hydraulic Oil Sight Gauge — This gauge indicates  
the level and temperature of the hydraulic oil. For normal  
operation oil level should be visible at the midpoint on  
the sightglass.  
are harmful to the hydraulic system.  
4. HydraulicValve — Directional hydraulic control valve.  
Controls the direction of hydraulic fluid supplied to the  
dump cylinder and paddle shaft.  
Figure 5 shows configuration for electric motor.  
Gasoline engine is configured in the same  
manner.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 17  
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ENGINE COMPONENTS  
4. Recoil Starter (pull rope) – Manual-starting method.  
Pull the starter grip until resistance is felt, then pull  
briskly and smoothly.  
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to  
stop the flow of fuel.  
6. Choke Lever – Used in the starting of a cold engine,  
or in cold weather conditions. The choke enriches the  
fuel mixture.  
7. Air Cleaner – Prevents dirt and other debris from  
entering the fuel system. Remove wing-nut on top of  
air filter cannister to gain access to filter element.  
Operating the engine without an air filter, with  
a damaged air filter, or a filter in need of  
replacement will allow dirt to enter the  
engine, causing rapid engine wear.  
Figure 6. Engine Controls and Components  
INITIAL SERVICING  
The engine (Figure 6) must be checked for proper lubrication  
and filled with fuel prior to operation. Refer to the  
manufacturers engine manual for instructions & details of  
operation and servicing.  
WARNING — Burn Hazards  
Engine components can generate extreme  
heat. To prevent burns, DO NOT touch  
these areas while the engine is running or  
immediately after operation. Never operate  
the engine with the muffler removed.  
1. Fuel Filler Cap – Remove this cap to add unleaded  
gasoline to the fuel tank. Make sure cap is tightened  
securely. DO NOT over fill.  
DANGER — Explosive Fuel Hazards  
8. Spark Plug – Provides spark to the ignition system.  
Set spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch)  
Clean spark plug once a week.  
Fuel is extremely flammable and its  
vapors can cause an explosion if ignited.  
DO NOT start the engine near spilled fuel  
or combustible fluids. In the event of a  
fuel spill, wait until the fuel residue has  
been completely wiped up and the area surrounding the  
engine is dry before starting the engine.  
9. Muffler – Used to reduce noise and emissions.  
10. Fuel Tank – Holds unleaded gasoline. Fuel tank  
capacity is 1.7 gallons (6.5 liters) For additional  
information refer to engine owner's manual.  
DO NOT fill the fuel tank while the engine is running or  
hot. DO NOT overfill tank, since spilled fuel could ignite  
if it comes into contact with hot engine parts or sparks  
from the ignition system. Store fuel in approved  
containers, in well-ventilated areas and away from  
sparks and flames.  
2. Throttle Lever – Used to adjust engine RPM speed  
(lever advanced forward SLOW, lever back toward  
operator FAST).  
3. Engine ON/OFF Switch – ON position permits engine  
starting, OFF position stops engine operations.  
PAGE 18 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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PADDLE BLADE ADJUSTMENT  
Adjust paddles as shown in Figure 7.  
Figure 7. Paddle Blade Adjustment (Steel Drum)  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 19  
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INSPECTION  
This section is intended to assist the operator with the  
inspection of the hydraulic mixer. It is extremely important  
that this section be read carefully before attempting to use  
the mixer in the field.  
Reference manufacturer engine manual for  
specific servicing instructions.  
DO NOT use your mixer until this section is thoroughly  
understood.  
BEFORE STARTING  
1. Read all safety instructions at the beginning of  
manual.  
2. Clean the mixer, removing dirt and dust, particularly  
the engine cooling air inlet, carburetor and air cleaner.  
Figure 9. Engine Oil Dipstick (Removal)  
3. Check the air filter for dirt and dust. If air filter is  
dirty, replace air filter with a new one as required.  
TABLE 5. OIL TYPE  
4. Check carburetor for external dirt and dust. Clean with  
dry compressed air.  
Season  
Summer  
Spring/Fall  
Winter  
Temperature  
25°C or Higher  
25°C~10°C  
Oil Type  
SAE 10W-30  
SAE 10W-30/20  
SAE 10W-10  
5. Check fastening nuts and bolts for tightness.  
ENGINE OIL CHECK  
0°C or Lower  
1. To check the engine oil level, place the mixer on secure  
level ground with the engine stopped.  
FUEL CHECK  
2. Remove the filler dipstick from the engine oil filler hole  
(Figure 8) and wipe it clean.  
DANGER — Explosive Fuel Hazards  
If your mixer has a gasoline engine,  
determine if the engine fuel is low. If fuel  
is low, remove the fuel filler cap and fill it  
with unleaded gasoline. Motor fuels are  
highly flammable and can be dangerous if  
mishandled. DO NOT smoke while refueling. DO NOT  
attempt to refuel the mixer if the engine is hot! or  
running.  
CAUTION — Start/Stop Switch  
Figure 8. Engine Oil Dipstick (Removal)  
NEVER! disable or disconnect the start/stop switch. It  
is provided for operator safety. Injury may result if it is  
disabled, disconnected or improperly maintained.  
3. Insert and remove the dipstick without screwing it into  
the filler neck. Check the oil level shown on the dipstick.  
4. If the oil level is low (Figure 9), fill to the edge of the oil  
filler hole with the recommended oil type (Table 6).  
Maximum oil capacity is 1.16 quarts (1.1 liters).  
1. Remove the gasoline cap located on top of fuel tank.  
2. Visually inspect to see if fuel level is low. If fuel is low,  
replenish with unleaded fuel.  
3. When refueling, be sure to use a strainer for filtration.  
DO NOT top-off fuel. Wipe up any spilled fuel.  
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INSPECTION  
HYDRAULIC OIL  
Check hydraulic oil sight gauge (Figure 10) to ensure that  
hydraulic oil is at the midway level.  
Figure 10. Hydraulic Oil Sight Gauge  
HYDRAULIC HOSES  
Figure 12. Grease Fittings (Dump Cylinder)  
Check hydraulic hoses to make sure they are not worn,  
frayed or defective.  
BLADE CHECK  
Check for worn or paddle blades. Make sure that all blades  
are adjusted properly. See blade adjustment procedure in  
this manual. Replace all defective or damaged blades  
immediately.  
GREASE FITTINGS (BEARINGS)  
Check the zerk grease fittings (Figure 11) on the bearing  
housings and dump support brackets at each end of the  
mixing drum. These grease fittings lubricate the dumping  
mechanism. If the dumping handle is stiff or hard to move  
lubricate these fittings.  
DUMP HANDLE (MANUAL DUMP MACHINES ONLY)  
Before operating a manual dump mixer, ensure that the  
dump handle has been placed in the operating position.  
See Figure 13.  
1. Remove and retain nuts (2) and bolts (2) that secure  
dump handle to the drum in towing position.  
2. Place dump handle in operating position and re-install  
nuts and bolts to secure dump handle to drum.  
Figure 11. Grease Fittings (Bearings)  
GREASE FITTING (DUMP CYLINDER)  
1. If your unit has hydraulic dump capability, check the  
zerk grease fitting at the top of the dump cylinder  
(Figure 12).This grease fitting lubricates the hydraulic  
dumping mechanism.  
Figure 13. Dump Handle  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 21  
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INITIAL START-UP  
4. Place the engine ON/OFF switch (Figure 17) in the ON  
position position.  
STARTINGTHE ENGINE  
The following steps outline the procedure for starting the  
engine. Depending on the type of engine employed in the  
mixer the steps may vary slightly.  
1. Place the fuel valve lever (Figure 14) in the ON position.  
2. To start a cold engine, move the choke lever (Figure  
Figure 17. Engine ON/OFF Switch  
5. Located on the engine cover is the engine start/stop  
switch (Figure 18). Pull this switch outward to start the  
engine.  
START STOP  
SWITCH  
Figure 14. Fuel Shut-OFF Lever  
15) to the CLOSED position.  
PULL OUT  
TO START  
OP  
PUSH  
S
T
TO  
Figure 18. Main ON/OFF Switch  
6. Pull the starter grip (Figure 19) lightly until you feel  
resistance, then pull briskly. Return the starter grip  
gently. Push the clutch lever forward, toward the tow  
tongue end of the mixer. When engine starts, adjust  
throttle lever so that paddle shaft inside mixer rotates  
between 30-40 RPMs. The number of RPMs will vary  
depending on engine type and load.  
Figure 15. Choke Lever  
3. Move the throttle lever (Figure 16) away from the slow  
position, about 1/3 of the way toward the fast position.  
Figure 16.Throttle lever Lever  
Figure 19. Starter Grip  
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INITIAL START-UP /OPERATION  
MIXING  
1. On the hydraulic valve, push lever inward (Figure 20)  
for clockwise mixing rotation of blades.  
2. The paddle shaft inside the drum should be rotating at  
this time.  
3. Add a small amount water to the mixing drum.  
4. Lift the mixing bag compound onto the steel safety  
grate over the bag cutter and let the contents fall into  
the drum. Add more water if desired and mix compound  
to desired consistency.  
Figure 21. Drum Lock Lever  
When the drum lock lever is placed  
horizontally, the drum will be maintained in  
the vertical position as the paddles rotate.  
This condition does not apply to models that  
have hydraulic dump capability.  
WARNING — Dump Handle Safety  
ALWAYS stand clear of the dump  
handle when the mixer is operational.  
Any binding of material between the  
mixer blades and the drum will cause  
the drum handle to quickly move and  
could cause severe bodily harm.  
Figure 20. Hydraulic Paddle Lever  
5. Manual dump machines only: When mixing plaster or  
mortar, the drum lock lever (Figure 21) should be in  
the horizontal (down) position. (Does not apply to  
hydraulic dump mixers.)  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 23  
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OPERATION  
DUMPING (MANUAL)  
DUMPING (HYDRAULIC)  
1. Release drum lock lever by pushing lever into vertical  
1. If operating a mixer with hydraulic dump capability, pull  
hydraulic dump lever (Figure 24) outward to place drum  
in dump position (Figure 25).  
position (Figure 22).  
Figure 22. Drum Lock Lever  
2. Pull dump handle downward to discharge (empty) the  
drum.Move dump handle upward to return it to vertical  
position. (Figure 23).  
Figure 24. Hydraulic Dump Lever  
Figure 23. Manual Dump Handle  
Figure 25. Hydraulic Dump  
3. Drum lock lever automatically moves back to horizontal  
position, locking the drum back into vertical position.  
2. Push hydraulic dump lever inward to place drum back  
in vertical position.  
4. Inspect for proper functionality before starting the engine  
or engaging blades. Any binding of material between the  
mixing blades and drum will cause the handle to quickly  
rotate if not in the “up and locked” position.  
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SHUT-DOWN  
STOPPINGTHE MIXER  
1. Push the start/stop switch (Figure 26) inward to stop  
the engine.  
Figure 26. Start/Stop Switch (Stop)  
2. Place the fuel valve (Figure 27) lever to the OFF  
position.  
Figure 27. FuelValve Lever (Off)  
3. Clean mixer as referenced in the maintenance section  
of this manual.  
CAUTION —Start/Stop Switch  
NEVER disable or disconnect the start/stop switch. It  
is provided for operator safety. Serious Injury may  
result if it is disabled, disconnected or improperly  
maintained.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 25  
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MAINTENANCE (ENGINE)  
UseTable 6 as a general maintenance guideline when servicing your engine.For more detail engine maintenance information,  
refer to the engine owner's manual supplied with your engine.  
TABLE 6. ENGINE MAINTENANCE SCHEDULE  
FIRST  
EVERY  
EVERY  
EVERY  
YEAR  
OR  
EVERY  
2 YEARS  
OR  
MONTH 3 MONTHS 6 MONTHS  
OR  
DESCRIPTION (3)  
OPERATION  
BEFORE  
OR  
OR  
10 HRS.  
25 HRS.  
50 HRS.  
100 HRS.  
200 HRS.  
CHECK  
CHANGE  
CHECK  
X
Engine Oil  
X
X
X
Air Cleaner  
All Nuts & Bolts  
Spark Plug  
CHANGE  
X (1)  
Re-tighten If  
Necessary  
CHECK-CLEAN  
REPLACE  
CHECK  
X
X
X
Cooling Fins  
Spark Arrester  
Fuel Tank  
CLEAN  
X
X
CLEAN  
Fuel Filter  
CHECK  
X
Idle Speed  
CHECK-ADJUST  
CHECK-ADJUST  
CHECK  
X (2)  
Valve Clearance  
Fuel lines  
X (2)  
Every 2 years (replace if necessary) (2)  
(1) Service more frequently when used in DUSTY areas.  
(2) These items should be serviced by your service dealer, unless you have the proper tools and are mechanically  
proficient. Refer to the HONDA Shop Manual for service procedures.  
(3) For commercial use, log hours of operation to determine proper maintenance intervals.  
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MAINTENANCE (ENGINE)  
3. Replace engine oil with recommended type oil as listed  
in Table 6. For engine oil capacity, see Table 2 (engine  
specifications). DO NOT overfill.  
MAINTENANCE  
Perform the scheduled maintenance procedures as defined  
by Table 8 and below:  
4. Install drain bolt with sealing washer and tighten  
securely.  
Daily  
■
Thoroughly remove dirt and oil from the engine and  
control area. Clean or replace the air cleaner elements  
as necessary. Check and retighten all fasteners as  
necessary. Check the gearbox for oil leaks. Repair or  
replace as needed.  
ENGINE AIR CLEANER  
1. Remove the air cleaner cover and foam filter element  
as shown in Figure 34.  
2. Tap the paper filter element (Figure 30) several times  
on a hard surface to remove dirt, or blow compressed  
air [not exceeding 30 psi (207 kPa, 2.1 kgf/cm2)] through  
the filter element from the air cleaner case side. NEVER  
brush off dirt. Brushing will force dirt into the fibers.  
Replace the paper filter element if it is excessively  
dirty.  
Weekly  
■
Remove the fuel filter cap and clean the inside of the  
fuel tank.  
■
■
Remove or clean the filter at the bottom of the tank.  
Remove and clean the spark plug (Figure 28), then adjust  
the spark gap to 0.024 ~0.028 inch (0.6~0.7 mm). This  
unit has electronic ignition, which requires no  
adjustments.  
3. Clean foam element in warm, soapy water or  
nonflammable solvent. Rinse and dry thoroughly. Dip  
the element in clean engine oil and completely squeeze  
out the excess oil from the element before installing.  
DANGER — Explosive Hazard  
DO NOT use gasoline as a cleaning solvent to avoid  
creating the risk of fire or an explosion.  
Figure 28. Spark Plug Gap  
ENGINE OIL  
1. Drain the engine oil when the oil is warm as shown in  
Figure 29.  
2. Remove the oil drain bolt and sealing washer and allow  
the oil to drain into a suitable container.  
Figure 29. Engine Oil (Draining)  
Figure 30. Engine Air Cleaner  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 27  
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MAINTENANCE (MIXER)  
BALL SOCKET AND CLAMP FACE MAINTENANCE  
DRUM HEAD SEALS  
There is 1 set of drum head seals (Figure 31) that will require  
lubrication. Lubricate the grease fitting for each drum seal  
after each use using any grade lithium base grease. Apply  
grease until visible inside of mixing drum (over grease).  
This will purge seal system of contamination.  
1. If the towing vechicle is equipped with a ball socket,  
smear socket periodically with multi-purpose grease.  
This will keep the ball socket well lubricated.  
2. Periodically oil pivot points and clamp face surfaces  
of coupler with SAE 30 WT. motor oil.  
3. When parking or storing your mixer. Keep the coupler  
off the ground so dirt will not build up in the ball socket.  
GREASE FITTING  
AND CAP  
GREASE FITTING DRUM HEAD  
AND CAP  
SEALS  
HYDRAULIC OIL FILTER  
Replace hydraulic oil filter (Figure 33) every 500 hours.  
Hydraulic tank capacity is 12 gallons (45 liters). Refill with  
any of the following hydraulic oil types. Shell Tellius 68,  
Mobil DFE26 or Texaco Rand HDC.  
Figure 31. Grease Fittings (Drum Head Seals)  
DRUM BEARING BRACKET LUBRICATION  
There is 1 set of drum bearing brackets (Figure 32) that will  
require lubrication. These brackets are intended to make  
the drum rotate freely. Lubricate the grease fitting for each  
drum bearing bracket every month or when the drum  
becomes difficult to position using multi-purpose grade  
grease.  
Figure 33. Hydraulic Oil Filter  
WHEEL BEARINGS  
1. After every 3 months of operation, remove the hub  
dust cap and inspect the wheel bearings (Figure 34).  
Once a year, or when required, disassemble the wheel  
hubs remove the old grease and repack the bearings  
forcing grease between rollers, cone and cage with a  
good grade of high speed wheel bearing grease (never  
use grease heavier than 265 A.S.T.M. penetration (“No.  
2.”)  
Figure 32. Grease Fittings (Dumping Mechanism)  
CAUTION — Lubricate Grease Fittings  
Failure to lubricate the drum bearing grease fittings  
eriodically will cause the dumping mechanism to stiffen,  
making the mixing drum hard to dump.  
Figure 34. Wheel Hub and Bearings  
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MAINTENANCE (MIXER)  
TIRES/WHEELS/LUG NUTS  
LUG NUTTORQUE REQUIREMENTS  
Tires and wheels are a very important and critical  
components of the trailer. When specifying or replacing  
the trailer wheels it is important the wheels, tires, and axle  
are properly matched.  
It is extremely important to apply and maintain proper wheel  
mounting torque. Be sure to use only the fasteners matched  
to the cone angle of the wheel. Proper procedure for  
attachment of the wheels is as follows:  
1. Start all wheel lug nuts by hand.  
WARNING — Damaged Wheels  
2. Torque all lug nuts in sequence. See Figure 35. DO  
NOT torque the wheel lug nuts all the way down.Tighten  
each lug nut in 3 separate passes as defined by Table  
10.  
DO NOT attempt to repair or modify a  
wheel. DO NOT install an inter-tube  
to correct a leak through the rim. If  
the rim is cracked, the air pressure in  
the inter-tube may cause pieces of the  
rim to explode (break-off) with great force and can cause  
serious eye or bodily injury.  
TABLE 8. TIRE TORQUE REQUIREMENTS  
First Pass  
FT-LBS  
Second Pass  
FT-LBS  
Third Pass  
FT-LBS  
Wheel Size  
TIRESWEAR/INFLATION  
12"  
13"  
14"  
15"  
16"  
20-25  
20-25  
20-25  
20-25  
20-25  
35-40  
35-40  
50-60  
50-60  
50-60  
50-65  
50-65  
Tire inflation pressure is the most important factor in tire  
life. Pressure should be checked cold before operation.  
DO NOT bleed air from tires when they are hot. Check  
inflation pressure weekly during use to insure the maximum  
tire life and tread wear.  
90-120  
90-120  
90-120  
WARNING — Eyesight Hazard  
ALWAYS wear safety glasses when  
removing or installing force fitted  
parts. Failure to comply may result in  
serious injury.  
NEVER! use an pneumatic air gun to tighten  
wheel lug nuts.  
Table 9 (Tire Wear Troubleshooting) will help pinpoint the  
causes and solutions of tire wear problems.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 29  
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MAINTENANCE (MIXER)  
3. After first road use, retorque all lug nuts in sequence.  
Check all wheel lug nuts periodically.  
SUSPENSION  
The suspension type axle and associated hardware (Figure  
36) should be periodically inspected for signs of excessive  
wear, elongation of bolt holes, and loosening of fasteners.  
Replace all damaged parts immediately.  
Figure 36. Axle Support Components  
MIXER CLEANING  
It is important that the drum interior is free of dried material.  
Obstructions can cause the paddle blades to lock against  
the drum resulting in sudden dump handle movement.  
1. Stop the engine. Push the engine “Kill” button to the  
“OFF” position.  
2. Place the hydraulic paddle lever (Figure 5) in "neutral"  
position do disengage.  
3. ALWAYS disconnect the spark plug wire before  
cleaning the inside of the drum. In addition make sure  
the clutch engagement lever is disengaged.  
4. Place “Do Not Operate” tag on mixer.  
5. Make sure the rear section of safety grate is connected  
to the mixing drum.  
6. At the end of each day’s operation, place mixer drum  
in an upright position and spray inside of tub  
immediately with water to prevent lumps of dried mortar  
or plaster from forming and contamination of future  
batches, DO NOT allow a buildup of materials to form  
on the blades or anywhere inside the drum.  
Figure 35. Wheel Lug NutsTightening Sequence  
7. Rotate mixer to dump position and remove debris.  
8. Thoroughly clean the entire mixer, wheels, cabinet  
and frame.  
PAGE 30 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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MAINTENANCE (MIXER)/STORAGE  
9. NEVER! pour or spray water over the engine (Figure  
37).  
MIXER STORAGE  
For storage of the mixer for over 30 days, the following is  
recommended:  
z
z
z
Drain the fuel tank completely, or add STA-BIL to the  
fuel.  
Run the engine until the fuel is completely  
consumed.  
Completely drain used oil from the engine crankcase  
and fill with fresh clean oil, then follow the procedures  
described in the engine manual for engine storage.  
Figure 37. No Spraying of Water  
10. When cleaning of the entire mixer is done, return  
mixing drum to an upright position.  
z
z
Clean the entire mixer and engine compartment.  
Place the mixing drum in the down position (mouth facing  
downward).  
WARNING — Keep Hands Clear of Drum  
When rotating the mixing drum from the dump position  
to the upright position, keep hands clear of safety  
grate. The possibility exists of hands or fingers being  
crushed (Figure 42).  
z
Cover the mixer and place it a clean dry area, that is  
protected from harsh elements.  
Figure 38. Safety Grate (Crush Hazard)  
WARNING — Disengaged Drum Lock  
DO NOT start engine or engage paddle arms when drum  
lock lever is not engaged.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 31  
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TROUBLESHOOTING (ENGINE)  
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a  
breakdown, please take a remedial action following the diagnosis based on the Engine and Mixer Troubleshooting (Tables  
9 and 10) information shown below and on the proceeding pages. If the problem cannot be remedied, please leave the unit  
just as it is and consult or company's service department.  
TABLE 9. ENGINE TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Inspect carburetor to see if fuel  
is reaching it?  
Check fuel line  
No Fuel?  
Add Fuel  
Water in fuel tank?  
Fuel filter clogged?  
Stuck carburetor?  
Spark plug is red?  
Flush or replace fuel tank.  
Replace fuel filter  
Check float mechanism.  
Poor starting  
Spark plug is fouled. Check tranistor ignition unit.  
Insufficient compression, injected air leaking. Carburetor jets are  
clogged (overflow).  
Spark plug is blue-white?  
No spark present at tip of spark  
plug?  
Tranistor ignition unit broken, high voltage cord cracked or broken.  
Start/Stop switch broken. Replace spark plug if fouled.  
No oil?  
Add oil as required.  
Oil pressure alarm lamp blinks  
upon starting?  
Check Automatic shutdown circuit "oil sensor".  
Replace cylinder and piston and if necessary axel joint.  
Tighten cylinder head connecting bolts.  
Engine will not turn over?  
Cylinder head connecting bolts  
loose?  
Cylinder head gasket damaged? Replace cylinder head gasket.  
Insufficient power output "no  
compression"  
Malfunction of valve seat?  
Spark plug is loose?  
Worn piston rings?  
Re-seat valves.  
Replace spark plug.  
Replace piston rings.  
Malfunction in air-cleaner  
system, air filter clogged?  
Clean or replace air filter.  
Air leaking in from interface  
between carburetor and cylinder  
head?  
Tighten bolts between carburetor and cylinder head. Replace  
cylinder head gasket.  
Insufficient power output  
"compression"  
Clean or replace fuel filter.  
Clean or replace carburetor.  
Check carburetor float.  
Malfunction in fuel system?  
PAGE 32 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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TROUBLESHOOTING (ENGINE)  
TABLE 9. ENGINE TROUBLESHOOTING (CONTINUED)  
SYMPTOM  
POSSIBLE PROBLEM  
Malfunction in cooling fan?  
Air in-take filter clogged?  
SOLUTION  
Check or replace cooling fan.  
Insufficient power output  
"compression" and overheats  
Clean or replace air in-take filter.  
Over accumulation of exhaust  
products?  
Clean and check valves.  
Check muffler, replace if necessary.  
Burns to much fuel  
Wrong spark plug?  
Replace spark plug with manufactures suggested type spark plug.  
Replace lubricating oil with correct viscosity.  
Lubricating oil is wrong  
viscosity?  
Exhaust color is continiously  
"WHITE"  
Worn rings?  
Replace rings  
Air cleanner clogged?  
Clean or replace air cleaner.  
Adjust choke valve to the correct position.  
Choke valve has not been set  
to the correct position?  
Exhaust color is continiously  
"BLACK"  
Carburetor defective, seal on  
carburetor broken?  
Replace carburetor or seal.  
Adjust carburetor.  
Poor carburetor adjustment  
"engine runs too rich?  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 33  
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TROUBLESHOOTING (MIXER)  
TABLE 10. MIXER TROUBLESHOOTING  
SYMPTOM  
POSSIBLE PROBLEM  
SOLUTION  
Material load too heavy,  
exceeding mixer capability?  
Reduce amount of material being mixed.  
Object stuck inside mixing  
drum, jamming paddle  
rotation?  
Stop engine. Empty out drum contents. Remove  
obstruction.  
Incorrect relief valve  
pressure?  
Inspect for proper 1750 PSI relief pressure.  
Proper RPM 3600.  
Blades will not rotate.  
Check engine speed.  
Defective hydraulic motor or  
pump?  
Contact MQ Technical Services.  
Slow hydraulic cylinder  
dumping?  
Defective cylinder seal.  
Replace seals.  
Material leaking from drum Worn or defective paddle  
ends.  
shaft seals?  
Defective or worn drum  
support brackets?  
Apply grease to bracket or replace.  
Drum difficult to discharge  
(tilt)  
Adjust blades until they almost touch side walls of  
drum.  
Blades adjusted too tight.  
PAGE 34 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HYDRAULIC SYSTEM DIAGRAM  
Figure 39. Hydraulic System Diagram  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 35  
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EXPLANATION OF CODE IN REMARKS COLUMN  
The following section explains the different symbols and  
QTY. Column  
remarks used in the Parts section of this manual. Use the help  
numbers found on the back page of the manual if there are any  
questions.  
Numbers Used - Item quantity can be indicated by a  
number, a blank entry, or A/R.  
A/R (As Required) is generally used for hoses or other parts  
that are sold in bulk and cut to length.  
The contents and part numbers listed in the parts section are  
subject to change without notice. Multiquip does not  
guarantee the availibility of the parts listed.  
A blank entry generally indicates that the item is not sold  
separately. Other entries will be clarified in the “Remarks”  
Column.  
REMARKS Column  
Sample Parts List:  
Some of the most common notes found in the “Remarks”  
Column are listed below. Other additional notes needed to  
describe the item can also be shown.  
NO. PART NO. PART NAME  
QTY. REMARKS  
1
2
2
3
4
12345  
BOLT ...................... 1 ......INCLUDES ITEMS W/  
WASHER, 1/4 IN. .............NOT SOLD SEPARATELY  
WASHER, 3/8 IN. ... 1 ......MQ-45T ONLY  
HOSE ................... A/R ....MAKE LOCALLY  
BEARING ............... 1 ......S/N2345B AND ABOVE  
*
*
*
12347  
12348  
12349  
Assembly/Kit - All items on the parts list with the same  
unique symbol will be included when this item is purchased.  
Indicated by:  
“INCLUDES ITEMS W/(unique symbol)”  
NO. Column  
Unique Symbols - All items with same unique symbol  
Serial Number Break - Used to list an effective serial  
number range where a particular part is used.  
( , #,  
+
, %, or >) in the number column belong to the same  
*
assembly or kit, which is indicated by a note in the “Remarks”  
column.  
Indicated by:  
“S/N XXXXX AND BELOW”  
“S/N XXXX AND ABOVE”  
“S/N XXXXTO S/N XXX”  
Duplicate Item Numbers - Duplicate numbers indicate  
multiple part numbers are in effect for the same general  
item, such as different size saw blade guards in use or a  
part that has been updated on newer versions of the same  
machine.  
Specific Model Number Use - Indicates that the part is  
used only with the specific model number or model number  
variant listed. It can also be used to show a part is NOT  
used on a specific model or model number variant.  
When ordering a part that has more than one  
item number listed, check the remarks column  
for help in determining the proper part to order.  
Indicated by:  
“XXXXX ONLY”  
“NOT USED ON XXXX”  
“Make/Obtain Locally” - Indicates that the part can be  
purchased at any hardware shop or made out of available  
items. Examples include battery cables, shims, and certain  
washers and nuts.  
PART NO. Column  
Numbers Used - Part numbers can be indicated by a  
number, a blank entry, orTBD.  
“Not Sold Separately” - Indicates that an item cannot be  
purchased as a separate item and is either part of an  
assembly/kit that can be purchased, or is not available for  
sale through Multiquip.  
TBD (To Be Determined) is generally used to show a part  
that has not been assigned a formal part number at time of  
publication.  
A blank entry generally indicates that the item is not sold  
separately or is not sold by Multiquip. Other entries will be  
clarified in the “Remarks” Column.  
PAGE 36 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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SUGGESTED SPARE PARTS  
MS120 1TO 3 UNITS  
MS120 5TO 10 UNITS  
Qty.  
P/N  
Description  
Qty.  
P/N  
Description  
6 ............ 491010 ............ RUBBER LATCH ASSY.  
10 .......... 491010 ............ RUBBER LATCH ASSY.  
1 ............ EM200293A .... PADDLE ARM TOW SIDE  
1 ............ EM200294A .... PADDLE ARM CENTER TOW SIDE  
1 ............ EM200295A .... PADDLE ARM CENTER ENGINE SIDE  
1 ............ EM200296A .... PADDLE ARM ENGINE SIDE  
3 ............ EM200863 ...... RUBBER BLADE KIT (STEEL DRUM)  
3 ............ EM204625 ...... RUBBER BLADE KIT (PLASTIC DRUM)  
4 ............ EM200297 ...... U-BOLT  
2 ............ EM200293A .... PADDLE ARM TOW SIDE  
2 ............ EM200294A .... PADDLE ARM CENTER TOW SIDE  
2 ............ EM200295A .... PADDLE ARM CENTER ENGINE SIDE  
2 ............ EM200296A .... PADDLE ARM ENGINE SIDE  
6 ............ EM200863 ...... RUBBER BLADE KIT (STEEL DRUM)  
3 ............ EM204625 ...... RUBBER BLADE KIT (PLASTIC DRUM)  
16 .......... EM200297 ...... U-BOLT  
2 ............ 3530................ PADDLE SHAFT, SEAL KIT  
2 ............ EM902153 ...... BEARING, PADDLE SHAFT  
4 ............ 3530................ PADDLE SHAFT, SEAL KIT  
4 ............ EM902153 ...... BEARING, PADDLE SHAFT  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 37  
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NAMEPLATE AND DECALS  
PAGE 38 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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NAMEPLATE AND DECALS  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
DCL151  
EM948630  
DCL160A  
512527  
504713  
35137  
512527  
513479  
DCL335  
DCL280  
13238  
PART NAME  
DECAL, TOWING INSTRUCTIONS  
DECAL, PUSH TO STOP  
DECAL, CRUSHWARNING  
DECAL, STOW  
DECAL, SAFETY INSTRUCTIONS  
DECAL, WARNING READ  
DECAL, STOW  
DECAL, WARNING SAFETY GRATE  
DECAL, CRUSH WARNING SAFETY GRATE  
DECAL, WARNING DUMP HANDLE  
DECAL, CONTROLS, MOLD-IN  
DECAL, POWDER COATED  
QTY.  
REMARKS  
2
1
2
3
1
1
3
1
1
1
1
1
9
10  
11  
12  
13  
13118  
NAMEPLATE........................................................ 1 ......... CONTACT PARTS DEPT.  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 39  
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PADDLE BLADES ASSY.  
ENGINE END  
6
5
2
CENTER  
ENGINE END  
7
9
CENTER  
TOW END  
7
8
2
8
5
3
18  
16  
10  
19  
7
17  
WIPER  
AND  
SCRAPPER  
HARDWARE  
KIT  
2
10  
S
I
D
E
S
C
R
R
P
A
P
E
R
O
L
Y
13  
O
R
U
B
R
E
TOW  
END  
15  
12  
11  
14  
PAGE 40 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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PADDLE BLADES ASSY.  
NO.  
2
3
5
6
PART NO.  
492584  
EM200295A  
EM200292  
EM200293A  
6109170  
PART NAME  
QTY.  
8
1
8
1
REMARKS  
NUT, LOCK 1/2"  
PADDLE ARM, CENTER TOW END  
INSERT, PADDLE ARM  
PADDLE ARM, TOW END  
WASHER, FLAT 1/2"  
7
8
8
9
10  
EM200297  
EM200294A  
492366  
EM923023  
EM200212  
EM203432  
2105164  
EM923343  
EM200296A  
EM203433  
EM200213  
EM200863  
U-BOLT, END PADDLES  
PADDLE ARM, CENTER ENGINE END  
SCREW, HHC 5/16-18 X 1-1/2 G5  
WASHER, FLAT 5/16" STEEL  
WIPER, SIDE (RUBBER)  
SCRAPPER, SIDE  
4
1
14  
28  
4
*
11  
*
12  
*
13  
4
*
14  
NUT, HEX 5/16"  
14  
14  
1
2
2
*
15  
*
WASHER, LOCK 5/16"  
PADDLE ARM, ENGINE END  
SCRAPPER, END  
BLADE, RUBBER (END)  
KIT, RUBBER BLADES, SCRAPERS & HARDWARE .... 1............ INCLUDES ITEMS W/  
16  
17  
*
18  
*
19  
*
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 41  
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STEEL DRUM ASSY. (MANUAL)  
PAGE 42 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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STEEL DRUM ASSY. (MANUAL)  
NO  
1#  
2#  
3#  
4#  
5#  
6#  
7#  
8#  
PART NO  
EM203449  
7170  
6109170  
13276Y  
EM969013  
EM621  
491008  
PART NAME  
GRATE, MOVABLE  
5/32" 3-5/16"  
WASHER, FLAT 1/2"  
BAR, GRATE LATCH  
NUT, NYLOC 3/8"  
WASHER, FLAT 1/2" SPECIAL  
CAP, GREASE FITTING  
GREASE FITTING  
SCREW, HHCS 1/2" NC X 2" G5 ............... 4........... REPLACES EM492396  
FRONT DUMP SUPPORT BRACKET  
CAP, DUST  
HHCS 3/8" NC X 1-1/4" G8  
PIN, COTTER 3/16" X 1  
BEARING HOUSING FRONT  
BEARING HOUSING, REAR  
REAR DUMP SUPPORT BRACKET  
HHCS 1/2"-13 X 1-1/2"  
QTY.  
REMARKS  
1
2
3
1
8
4
4
4
EM916019  
EM963105  
13260Y  
9#  
10#  
11#  
12#  
13#  
14#  
15#  
16#  
17#  
18#  
19#  
20  
1
1
8
2
1
1
1
1
7
1
1
3249Y  
EM963610  
EM924015  
3291  
516457  
13259Y  
EM963692  
492584  
512245Y  
EM201537Y  
512180  
NUT, LOCK 1/2"  
STEEL DRUM, MANUAL  
MANUAL DUMP HANDLE  
21  
DRUM AND SHAFT ASSY. MANUAL ......... 1........... INCLUDES ITEMS W/#  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 43  
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STEEL DRUM ASSY. (HYDRAULIC)  
2
1
3
2
7
3
9
8
4
16  
17  
6
18  
23  
25  
25  
26  
REAR  
25  
12  
19  
15  
20  
23  
FRONT  
7
21  
5
24  
DUMP  
7
22  
8
8
HYDRAULIC  
9
11  
14  
10  
27  
6
25  
3
24  
NOTES:  
COMPLETE DRUM ASSEMBLY, ITEM 27 INCLUDES  
ITEMS WITHIN DASHED LINE. ALSO INCLUDED ARE  
PADDLE SHAFT AND PADDLE ARMS. SEE PADDLE  
PART OF FRAME  
1
SHAFT AND PADDLE ARM ASSEMBLIES IN THIS MANUAL.  
PAGE 44 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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STEEL DRUM ASSY. (HYDRAULIC)  
NO  
1#  
2#  
3#  
4#  
5#  
6#  
7#  
8#  
PART NO  
EM203449  
7170  
6109170  
13276Y  
EM969013  
EM621  
491008  
EM916019  
EM963105  
13260Y  
3249Y  
EM963610  
EM924015  
3291  
PART NAME  
QTY. REMARKS  
MOVEABLE GRATE  
1
PIN, HITCH CLIP 5/32" 3-5/16"  
WASHER, FLAT 1/2"  
BAR, GRATE  
2
3
1
4
4
4
4
NUT, NYLOC 3/8"  
WASHER, FLAT 1/2" SPECIAL  
CAP, GREASE FITTING  
GREASE FITTING  
SCREW, HHCS 1/2" NC X 2" G5 ................... 4....... REPLACES EM492396  
FRONT DUMP SUPPORT BRACKET  
CAP, DUST  
HHCS 3/8" NC X 1-1/4" G8  
PIN, COTTER 3/16" X 1  
BEARING HOUSING FRONT  
BEARING HOUSING, REAR  
REAR DUMP SUPPORT BRACKET  
COTTER PIN 3/16" X 2"  
PIN, DUMP CYLINDER  
CYLINDER, DUMP  
LOCK NUT 1" NC  
SPACER, LOWER HYDRAULIC CYLINDER 1  
SCREW HHCS 1" NC X 8  
SPACER, 2" X 1-1/8 X 1/4" L  
HHCS 1/2"-13 X 1-1/2"  
NUT, LOCK 1/2"  
9#  
10#  
11#  
12#  
13#  
14#  
15#  
16#  
17  
18  
19  
20  
21  
22  
23  
24#  
25#  
26#  
27  
1
1
4
2
1
1
1
1
1
1
1
516457  
13259Y  
509000  
13228  
3327  
511495  
13286Y  
511526  
3047  
EM963692  
492584  
516535Y  
511173  
1
2
7
11  
1
STEEL DRUM, HYDRAULIC  
DRUM AND SHAFT ASSY. HYDRAULIC ....... 1....... INCLUDES ITEMS W/#  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 45  
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PADDLE SHAFT ASSY.  
PAGE 46 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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PADDLE SHAFT ASSY.  
NO  
1
2#  
3#  
4
PART NO  
3061  
3494  
3019  
3024  
PART NAME  
QTY.  
14  
2
REMARKS  
SPACER, THIN SEAL  
OUTER SEAL, URETHANE 1-1/4 OD  
INNER SEAL 1-1/8"  
SPRING  
4
2
5
7
8
9
12  
13  
14  
15A  
15A  
16A  
13002  
EM902153  
3347  
13108  
3047  
SEAL, BEARING 1-1/2"  
BEARING  
2
2
1
1
1
1
1
1
1
1
1
1
NUT, SPECIAL 1-1/2"-12  
WASHER, FLAT USS 1-1/8"  
SPACER, 2 X 1-1/8" X1/4" L  
NUT, SLOTTED HEX JAM 1-20  
PIN, COTTER 1/8 X 3/4"  
PADDLE SHAFT (STEEL)  
PADDLE SHAFT (PLASTIC)  
COUPLER, KEY STYLE  
KEY, SQUARE 5/16 X 1-3/8"  
SCREW, SHS 5/16-24 X 1/2"  
8164  
EM924006  
514233Y  
514234Y  
514235  
EM502727  
0857  
*
*
17  
*
18  
*
19  
3530  
514233K  
KIT, SEAL, PADDLE SHAFT ........................ 1 ........... INCLUDES ITEMS W/#  
KIT, PADDLE SHAFT .................................... 1 ........... INCLUDES ITEMS W/  
20  
*
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 47  
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HYDRAULIC ASSY.  
PAGE 48 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HYDRAULIC ASSY.  
NO.  
2
4
PART NO.  
492356  
2101402  
EM969013  
3019092  
492584  
13147Y  
13153  
13196  
13210  
13213  
EM25459  
511847  
511509  
13219  
PART NAME  
QTY.  
REMARKS  
BOLT 1/4" X 3/4"  
2
WASHER, SPRING 1/4"..........................................2................ REPLACES 492622  
NUT, NYLOCK ......................................................... 1................ REPLACES 492583  
WASHER 3/8" FLAT ................................................2................ REPLACES 492598  
8
10  
12  
14  
16  
18  
20  
22  
24  
25  
26  
28  
30  
32  
33  
34  
36  
40  
42  
44  
46  
48  
50  
52  
54  
56  
58  
61  
62  
64  
66  
74  
78  
80  
82  
84  
86  
86  
88  
90  
92  
96  
NUT, LOCK 1/2"  
4
1
2
1
1
2
1
1
1
1
1
1
1
2
1
2
ARM, MOTORTORQUE  
CAP, SPRING MOUNT  
HOSE, PUMP OUTPUT 21"  
STRAINER, IN LINE  
SPRING, DIE  
ELBOW 3/4"-90  
FITTING  
BOLT, 3/8" NC X 6" G5  
FITTING 90 3/4 MP X 3/4 MP  
FITTING, STR 12BARB X 3/4MP  
FITTING, STR  
FITTING, 90DEG STRAIGHT ELBOW  
HANDLE, DRIVE VALVE CONTROL  
HOSE W/ 90 DEG FITTING  
HOSE, 3/4 ID X 18-1/2  
13220  
511691  
510263  
13225  
13243  
13380  
EM963105  
16587  
3322  
34570  
506207  
18052  
3353  
3365  
3367  
511847  
3462  
8051  
506094  
3369  
515219  
503117  
0166 A  
515251  
34585  
HEX BOLT 1/2"-13 X 2" ..........................................4................ REPLACES 492396  
FITTING, STR 10MJ-8MO  
FITTING, 90 10MJ-10MO  
MOTOR, HYDRAULIC  
CLAMP HOSE HS-16  
SIGHT GAUGE AA4724  
CAP, FILLER/BREATHER  
FITTING, STR 10MJ-10MO  
FITTING, 90 12BARB-3/4MP  
FITTING  
2
1
1
6
1
1
3
2
1
1
1
1
HOSE  
FILTER, HYDRAULIC OIL  
PLUG 1/2" NPT GALVANIZED  
FITTING, 90 4MJ-3/8MP .........................................2................ HYDRAULIC DUMP ONLY  
FITTING, 90 DEG  
BOLT 3/8" NC X 3" G5  
WASHER, LOCK 3/8" MED  
SPACER  
VALVE, FOUR WAY ASSY. .....................................1................ HYDRAULIC DUMP ONLY  
VALVE, TWO WAY ..................................................1................ MANUAL DUMP ONLY  
FITTING, STR. ........................................................2................ HYDRAULIC DUMP ONLY  
1
3
3
3
3385  
511845  
3407  
13243  
TBD  
KNOB  
2
1
HOSE W/ 90 DEG FITTING  
HOSE ......................................................................2................ HYDRAULIC DUMP ONLY  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 49  
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FRAME ASSY.  
PAGE 50 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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FRAME ASSY.  
NO  
1
2
3
4
5
6
7
8
PART NO  
13212  
EM941280  
13365Y  
10133  
0447  
10176  
PART NAME  
GROMMET ............................................. 1 ............. WITH DUMP (HYDRAULIC DUMP CYL.)  
LUG NUT  
MAIN FRAME ......................................... 1 ............. S/N II27770  
QTY.  
REMARK  
8
LOCK NUT 3/8-16  
FLAT WASHER 1/2"  
LOCK NUT 1/2-13  
GRATE LATCH  
1
1
12  
1
511493Y  
1023  
HHCS 3/8-16 X 1.1/4"  
1
9
13280Y  
3102  
EM941278  
13363KIT  
3028  
3215  
HLC-1  
HPC-1  
HBC-1  
511699Y  
5218  
3043  
3076  
3018  
19045  
EM968302  
0183  
EM923161  
EM903168  
EM903169  
EM914324  
EM941277  
EM903113  
EM903012  
516180  
DRUM LOCK LEVER .............................. 1 ............. W/O DUMP (MANUAL ONLY)  
HANDLE GRIP ........................................ 1 ............. W/O DUMP (MANUAL ONLY)  
DUST CAP .............................................. 2 ............. REPLACEMENT ONLY  
SAFETY CHAIN ASM............................. 1 ............. REPLACES 3148  
10  
11  
12  
13  
14  
15  
15  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
30  
31  
32  
U-BOLT  
HHCS 1/2-13 X 3-1/2"  
2
1
TOW BAR (LOOP) .................................. 1 ............. CONTACT UNIT SALES  
TOW BAR (1 " PIN) ................................. 1 ............. CONTACT UNIT SALES  
TWO BAR (BALL HITCH 2 -INCH) .......... 1 ............. CONTACT UNIT SALES  
AXLE, NEW STYLE  
HHCS 1/2-13 X 1-1/2"  
HHCS 1/2-13 X 6"  
AXLE SPRING  
LEAF SPRING  
WHEEL & TIRE  
CASTLE NUT, 3/4-16  
COTTER PIN, 1/8X1-1/4  
FLAT WASHER 3/4"  
BEARING CONE INNER  
BEARING CUP INNER  
SEAL  
1
4
2
2
2
2
2
2
2
4
4
2
*
*
*
*
*
HUBW/BEARING CUPS (5-LUG) ........... 2 ............. INCLUDES ITEMS W/  
*
BEARING CONE OUTER  
BEARING CUPS OUTER  
SAFETY HOOK  
2
2
1
*
*
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 51  
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STEEL ENGINE COVER ASSY.  
PAGE 52 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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STEEL ENGINE COVER ASSY.  
NO.  
1
2
3
4
5
6
7
PART NO.  
511580Y  
509726Y  
491010  
1284  
4001  
10133  
PART NAME  
ENGINE COVER-STEEL  
HINGE  
RUBBER LATCH ASSY.  
SCREW, HHCS 3/8-16 X 1-1/2"  
FLAT WASHER 3/8"  
LOCK NUT 3/8-16  
RHMS 8-32 X 1/2"  
QTY.  
REMARKS  
1
2
2
4
8
4
6
1307  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 53  
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HONDA ENGINE ASSY.  
PAGE 54 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA ENGINE ASSY.  
NO.  
1
2
3
4
5
6
7
8
PART NO.  
3364  
203148  
203123F  
491797  
29174-001  
29173-001  
0310  
PART NAME  
ENGINE, HONDA 11HP GX390U1QA2  
TUBE, EXHAUST  
PLATE  
RIVET, ID PLATE  
KNOB-MUSHROOM  
SWITCH, PUSH-PULL W/O KNOB  
KEY 1/4 SQUARE 1-1/2  
SCREW CAP 3/8"  
QTY.  
REMARKS  
1
1
1
4
1
1
1
4
492379  
9
3019092  
EM969013  
203040  
516282  
0166 A  
EM963610  
13374  
WASHER 3/8" FLAT ................................................ 6................ REPLACES 492598  
NUT NYLOCK ......................................................... 4................ REPLACES 492583  
10  
11  
12  
13  
14  
15  
SLEEVE, ENGINE SHAFT, HONDA  
COUPLING ASSY  
1
1
WASHER LOCK 3/8" ............................................... 6................ REPLACES 492624  
CAPSCREW 3/8" NC X 1-1/4" G8........................... 6................ REPLACES 492376  
PUMP, EATON 26003-RAG  
1
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 55  
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HONDA GX390K1QA2/GX390U1QA2 — AIR CLEANER ASSY.  
PAGE 56 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — AIR CLEANER ASSY.  
NO.  
1
PART NO.  
PART NAME  
QTY.  
REMARKS  
16271ZE2000  
17210ZE3010  
17218ZE3000  
17231ZE3W01  
17232891000  
17235ZH9N00  
17235ZH9N00  
17235ZH9N01  
17238ZE2310  
17239ZE1000  
17410ZH9N00  
90203ZA0800  
90325044000  
90009ZE2003  
9405006000  
GASKET, ELBOW  
1
2
ELEMENT, AIR CLEANER ................ 1 ........ INCLUDES ITEMS W/#  
FILTER, OUTER  
3
4
5
6
6
6
7
8
9
#
1
1
1
1
COVER, AIR CLEANER  
GROMMET, AIR CLEANER  
NOSE, SILENCER  
NOSE, SILENCER............................. 1 ........ S/N 1040439 AND BELOW  
NOSE, SILENCER............................. 1 ........ S/N 1040440 AND ABOVE  
COLLAR, AIR CLEANER  
COLLAR B, AIR CLEANER  
ELBOW, AIR CLEANER .................... 1 ........ INCLUDES ITEMS W/  
WINGNUT, 6MM  
#
ꢀ
◊
◊
2
1
*
*
*
11  
12  
13  
14  
1
1
1
2
WINGNUT, TOOL BOX SETTING  
BOLT- WASHER 6X22  
NUT, FLANGE 6MM  
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 57  
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HONDA GX390K1QA2/GX390U1QA2 — CAMSHAFT ASSY.  
PAGE 58 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — CAMSHAFT ASSY.  
NO.  
PART NO.  
14100ZF6W0  
PART NAME  
QTY.  
REMARKS  
1
ꢀ
ꢀ
◊
CAMSHAFT ASSEMBLY ...............................1................ INCLUDES ITEMS W/  
.......................................................................................... SN 2391939 AND BELOW  
CAMSHAFT ASSEMBLY ...............................1................ INCLUDES ITEMS W/  
.......................................................................................... SN 2391940 AND ABOVE  
CAMSHAFT ASSEMBLY  
ROD, PUSH  
ARM, VALVE ROCKER.................................. 2................ REPLACES 14431ZE2000  
*
1
14100ZF6W01  
*
1
2
3
4
5
6
7
8
9
14100ZF6W01  
14410ZE3013  
14431ZE2010  
14441ZE2000  
14451ZE1013  
14568ZE1000  
14711ZE3000  
14721ZE3000  
14751ZE2003  
14771ZE2000  
14773ZE2000  
14775ZE2010  
14781ZE2000  
14791ZE2010  
90012ZE0010  
90206ZE1000  
12209ZE8003  
12209ZE8003  
1
2
LIFTER, VALVE  
2
2
1
1
1
2
1
1
1
1
1
2
2
PIVOT, ROCKER ARM  
SPRING, WEIGHT RETURN  
VALVE, INTAKE  
VALVE, EXHAUST  
SPRING, VALVE  
RETAINER, INTAKE VALVE SPRING  
RETAINER, EXHAUST VALVE SPRING  
SEAT, VALVE SPRING  
ROTATOR, VALVE  
PLATE, PUSH ROD GUIDE  
BOLT, PIVOT 8MM  
*
10  
11  
12  
13  
14  
15  
16  
17  
17  
NUT, PIVOT ADJ.  
ꢀ
SEAL, VALVE STEM .....................................1................ USE FROM ENGINE SN 3065844  
SEAL, VALVE STEM  
◊
1
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 59  
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HONDA GX390K1QA2/GX390U1QA2 — PISTON ASSY.  
PAGE 60 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — PISTON ASSY.  
NO. PART NO.  
PART NAME  
QTY. REMARKS  
1
1
1
1
1
1
1
1
1
2
2
2
2
3
4
13010ZF6003  
13010ZF6005  
13011ZF6003  
13011ZF6005  
13012ZF6003  
13012ZF6005  
13012ZF6005  
13013ZF6003  
13013ZF6005  
13101ZF6W00  
13102ZF6W00  
13103ZF6W00  
13104ZF6W00  
13111ZF6W00  
13200ZE3010  
RING SET, PISTON (STD.)  
1
1
1
1
1
1
1
1
1
1
1
1
1
1
RING SET, PISTON (STD.)  
RING SET, PISTON (OS 0.25), OPT.  
RING SET, PISTON (OS 0.25), OPT.  
RING SET, PISTON (OS 0.50), OPT.  
RING SET, PISTON (OS 0.50), OPT.  
RING SET, PISTON (OS 0.50), OPT.  
RING SET, PISTON (0.75) NIP.,OPT.  
RING SET, PISTON (0.75) NIP.,OPT.  
PISTON (STANDARD)  
PISTON (OS 0.25), OPTIONAL  
PISTON (OS 0.50), OPTIONAL  
PISTON (0.75), OPTIONAL  
PIN, PISTON  
ꢀ
ꢀ
ROD ASSY., CONNECTING (STD.) ......... 1 .......INCLUDES ITEMS W/  
............................................................................SN 3177434 AND BELOW  
ROD ASSY., CONNECTING (STD.) ......... 1 .......INCLUDES ITEMS W/  
............................................................................SN 3177435 AND ABOVE  
*
4
13200ZE3020  
*
4
4
4
5
6
ꢀ
◊
◊
13200ZE3315  
13200ZE3020  
13200ZE3315  
90001ZE8000  
90601ZE3000  
ROD ASSY., CONNECTING (US 0.25)..... 1 .......INCLUDES ITEMS W/  
ROD ASSY., CONNECTING (STD.) ......... 1 .......INCLUDES ITEMS W/  
ROD ASSY., CONNECTING (US 0.25)..... 1 .......INCLUDES ITEMS W/  
*
*
*
BOLT, CONNECTING ROD  
CLIP, PISTON PIN 20MM  
2
2
*
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 61  
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HONDA GX390K1QA2/GX390U1QA2 — CRANKCASE COVER ASSY.  
PAGE 62 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — CRANKCASE COVER ASSY.  
NO.  
PART NO.  
06165ZE3000  
11300ZE3602  
PART NAME  
QTY.  
REMARKS  
1
GOVERNOR KIT (OPIONAL)........................... 1 ......... INCLUDES ITEMS W/  
#
*
2
ꢀ
ꢀ
COVER ASSY., CRANKCASE (Q TYPE) ........ 1 ......... INCLUDES ITEMS W/  
...................................................................................... S/N 3287256 AND BELOW  
COVER ASSY., CRANKCASE (Q TYPE) ........ 1 ......... INCLUDES ITEMS W/  
...................................................................................... S/N 3287257 AND ABOVE  
*
2
11300ZE3604  
*
2
3
3
3
4
5
◊
ꢀ
ꢀ
◊
11300ZE3604  
11381ZE3800  
11381ZE3801  
11381ZE3801  
15600ZG4003  
15600735003  
COVER ASSY., CRANKCASE (Q TYPE)  
GASKET, CASE COVER ................................. 1 ......... S/N 2949254 AND BELOW  
GASKET, CASE COVER ................................. 1 ......... S/N 2949255 AND ABOVE  
GASKET, CASE COVER  
CAP ASSEMBLY, OIL FILLER ......................... 1 ......... INCLUDES ITEMS W/  
CAP ASSEMBLY, OIL FILLER ......................... 1 ......... INCLUDES ITEMS W/  
GASKET, OIL FILLER CAP  
GOVERNOR ASSEMBLY ................................ 1 ......... INCLUDES ITEMS W/+  
WEIGHT, GOVERNOR  
HOLDER, GOVERNOR WEIGHT  
PIN, GOVERNOR WEIGHT  
SLIDER, GOVERNOR...................................... 1 ......... S/N 3287256 AND BELOW  
SLIDER, GOVERNOR...................................... 1 ......... S/N 3287257 AND ABOVE  
SLIDER, GOVERNOR  
CLIP, GOVERNOR HOLDER  
PIN, DOWEL 8X12  
OIL SEAL 36X52X8  
WASHER, PLAIN 6MM  
BOLT, FLANGE 8X40  
1
1
%
%
8%  
15625ZE1003  
16510ZE3000  
+ 16511ZE8000  
+ 16512ZE3000  
+ 16513ZE2000  
2
9
#
*
10  
11  
12  
13  
13  
13  
15  
16  
17  
#
#
#
3
1
3
*
*
*
ꢀ
ꢀ
◊
#
#
#
16531ZE2000  
16531Z0A000  
16531Z0A000  
90602ZE1000  
90701HC4000  
91201ZE3004  
9410106800  
957010804000  
961006202000  
961006207000  
*
*
1
1
2
1
1
7
1
1
*
#
*
*
*
18  
19  
20  
21  
#
BEARING, RADIAL BALL 6202  
BEARING, RADIAL BALL 6207  
*
*
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 63  
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HONDA GX390K1QA2/GX390U1QA2 — CRANKSHAFT ASSY.  
PAGE 64 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — CRANKSHAFT ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
2
2
2
6
9
ꢀ
◊
◊
13310ZF6W10  
13310ZF6W11  
13310ZF6W12  
13351ZE3010  
90745ZE2600  
91001ZF6003  
91001ZF6003  
91001ZF6013  
CRANKSHAFT, Q-TYPE .................................. 1 ......... INCLUDES ITEMS W/  
CRANKSHAFT COMP. .................................... 1 ......... S/N 1113739 AND BELOW  
CRANKSHAFT COMP. .................................... 1 ......... S/N 1113740 AND ABOVE  
WEIGHT, BALANCER  
KEY 6.3X6.3X43  
BEARING, RADIAL BALL 6207S  
BEARING, RADIAL BALL 6207S..................... 1 ......... S/N 1113739 AND BELOW  
BEARING, RADIAL BALL 6207SH .................. 1 ......... S/N 1113740 AND ABOVE  
*
1
1
1
10  
10  
10  
ꢀ
◊
◊
*
*
*
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 65  
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HONDA GX390K1QA2/GX390U1QA2 — CYLINDER BARREL ASSY.  
PAGE 66 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — CYLINDER BARREL ASSY.  
NO.  
PART NO.  
12000ZF6W12  
PART NAME  
QTY. REMARKS  
1
ꢀ
BARREL ASSY., CYL. ALERT OIL .......... 1.......INCLUDES ITEMS W/  
*
...........................................................................SN 3020570 AND BELOW  
1
ꢀ
12000ZF6W13  
BARREL ASSY., CYL. ALERT OIL .......... 1.......INCLUDES ITEMS W/  
*
...........................................................................SN 3020571 AND ABOVE  
1
2
2
2
◊
ꢀ
ꢀ
ꢀ
12000ZF6417  
15510ZE2023  
15510ZE2033  
15510ZE2043  
BARREL ASSY., CYL. ALERT OIL .......... 1.......INCLUDES ITEMS W/  
SWITCH ASSY., OIL LEVEL ................... 1.......S/N 2334667 AND BELOW  
*
SWITCH ASSY., OIL LEVEL ................... 1.......2334668 ~ 2456575  
SWITCH ASSY., OIL LEVEL ................... 1.......REPLACES 15510ZE2033  
...........................................................................S/N 2456576 AND ABOVE  
SWITCH ASSY., OIL LEVEL ................... 1.......REPLACES 15510ZE2033  
...........................................................................S/N 1412956 AND BELOW  
SWITCH ASSY., OIL LEVEL ................... 1.......S/N 1412957 AND ABOVE  
2
◊
◊
ꢀ
ꢀ
15510ZE2043  
2
3
4
15510ZE2053  
16541ZE3010  
32197ZE2003  
SHAFT, GOVERNOR ARM  
1
SUB-HARNESS ....................................... 1.......USE UP TO ENGINE SN 2334667  
5
6
7
9
10  
11  
12  
13  
14  
15  
16  
90013883000  
90131883000  
90446KE1000  
91201ZE3004  
91203952771  
91353671004  
9405010000  
BOLT, FLANGE 6X12 (CT200) ................. 1.......USE UP TO ENGINE SN 2334667  
BOLT, DRAIN PLUG 12 X 15  
WASHER 8.2X17X0.8  
OIL SEAL 35X52X8  
2
1
1
1
1
1
2
1
2
1
*
OIL SEAL 8X14X5  
*
O- RING 13.5X1.5 (ARAI)  
NUT, FLANGE 10mm.  
WASHER, DRAIN PLUG 12mm.  
PIN,LOCK 10mm.  
BOLT, FLANGE 6X12  
BEARING, RADIAL BALL 6202  
9410912000  
9425110000  
957010601200  
961006202000  
90013883000  
90013883000  
34150ZH7003  
34150ZH7003  
34150ZH7013  
*
17  
17  
18  
18  
18  
ꢀ
◊
ꢀ
◊
◊
BOLT, FLANGE 6X12 (CT200) ................. 1.......USE FROM ENGINE SN 2468555  
BOLT, FLANGE 6X12 (CT200)  
1
ALERT UNIT, OIL..................................... 1.......USE FROM ENGINE SN 2468555  
ALERT UNIT, OIL..................................... 1.......S/N 1419413 AND BELOW  
ALERT UNIT, OIL..................................... 1.......S/N 1419414 AND ABOVE  
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 67  
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HONDA GX390K1QA2/GX390U1QA2 — CYLINDER HEAD ASSY.  
PAGE 68 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — CYLINDER HEAD ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
1
2
3
4
5
6
6
6
7
7
ꢀ
12200ZF6W01  
12200ZF6406  
12204ZE2306  
12205ZE2305  
12216ZE2300  
12251ZF6W00  
12310ZE3791  
12310ZE2020  
12310ZE2020  
950051110530  
950051110530  
CYLINDER HEAD ............................................ 1 ......... INCLUDES ITEMS W/  
CYLINDER HEAD ............................................ 1 ......... INCLUDES ITEMS W/  
GUIDE, VALVE OS (OPTIONAL)  
GUIDE, EX. VALVE OS (OPTIONAL)  
CLIP, VALVE GUIDE  
*
*
◊
1
1
1
1
*
*
*
ꢀ
ꢀ
◊
◊
ꢀ
GASKET, CYLINDER HEAD  
COVER, HEAD ................................................ 1 ......... SN 2378736 AND BELOW  
COVER, HEAD ................................................ 1 ......... SN 2378737 AND ABOVE  
COVER, HEAD ................................................ 1  
TUBE, 11X105 ................................................. 1 ......... REPL. 950051100130M  
TUBE, 11X105 ................................................. 1 ......... SN 2368041 AND BELOW  
...................................................................................... REPL. 950051100130M  
TUBE, BREATHER .......................................... 1 ......... SN 2368042 AND ABOVE  
GASKET, CYLINDER HEAD COVER  
BOLT, HEAD COVER  
BOLT, STUD 8X131.5  
BOLT 2, STUD 8X47  
7
8
ꢀ
12315ZE3840  
12391ZE2020  
90014ZE2000  
90042ZE8000  
90047ZE2000  
92900080320E  
1
1
2
2
11  
12  
13  
13  
ꢀ
ꢀ
S/N 2638033 AND BELOW  
BOLT 2, STUD 8X32 ........................................ 2 ......... REPLACES 90047ZE2000  
...................................................................................... S/N 2638034 AND ABOVE  
13  
14  
15  
16  
16  
16  
17  
17  
17  
17  
◊
92900080320E  
90441ZE2010  
9430112200  
957251008000  
957251008000  
957011008000  
9807955846  
9807955855  
9807956846  
9807956855  
BOLT 2, STUD 8X32  
2
1
2
4
WASHER, HEAD COVER  
PIN A, DOWEL 12X20  
BOLT, FLANGE 10X80  
BOLT, FLANGE 10X80 ..................................... 4 ......... S/N 1411816 AND BELOW  
BOLT, FLANGE 10X80 ..................................... 4 ......... S/N 1411817 AND ABOVE  
SPARK PLUG BPR5ES (NGK), OPT.  
SPARK PLUG W16EPR-U (DENSO), OPT.  
SPARK PLUG BPR6ES (NGK)  
ꢀ
◊
◊
1
1
1
1
SPARK PLUGW20EPR-U (DENSO)  
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 69  
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HONDA GX390K1QA2/GX390U1QA2 — FAN COVER ASSY.  
PAGE 70 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — FAN COVER ASSY.  
NO.  
1
2
PART NO.  
PART NAME  
QTY.  
REMARKS  
16731ZE2003  
19610ZE3010ZA  
19631ZE3W00  
32197ZH8003  
36100ZE1015  
36100ZH7003  
36100ZF6P81  
36100ZF6P82  
90013883000  
90684ZA0601  
CLIP, TUBE  
1
1
1
COVER, FAN *R280*, RED  
SHROUD  
3
4
5
5
5
5
7
9
ꢀ
ꢀ
ꢀ
◊
◊
SUB-HARNESS ........................................... 1 ......... SN 2334667 AND BELOW  
SWITCH ASSY., ENGINE STOP ................. 1 ......... SN 2334667 AND BELOW  
SWITCH ASSY., ENGINE STOP ................. 1 ......... SN 2334668 AND ABOVE  
SWITCH ASSY., ENGINE STOP ................. 1 ......... SN 1412956 AND BELOW  
SWITCH ASSY., ENGINE STOP ................. 1 ......... SN 1412957 AND ABOVE  
BOLT, FLANGE 6X12 (CT200)  
CLIP, WIRE HARNESS  
6
1
ꢀ
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 71  
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HONDA GX390K1QA2/GX390U1QA2 — FLYWHEEL ASSY.  
PAGE 72 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — FLYWHEEL ASSY.  
NO.  
1
2
PART NO.  
PART NAME  
QTY.  
REMARKS  
19511ZE3000  
28450ZE3W11  
31100ZE3701  
90201ZE3790  
90201ZE3V00  
90201ZE3V00  
90201ZE3790  
90741ZE2000  
FAN, COOLING  
1
1
1
PULLEY, STARTER (SCREEN GRID)  
FLYWHEEL  
NUT, SPECIAL 16MM .................................. 1 ......... S/N 2263434 AND BELOW  
NUT, SPECIAL 16MM (1)............................. 1 ......... S/N 2263435 AND ABOVE  
NUT, SPECIAL 16MM (1)............................. 1 ......... S/N 1317976 AND BELOW  
NUT, SPECIAL 16MM .................................. 1 ......... S/N 1317977 AND ABOVE  
4
6
6
6
6
7
ꢀ
ꢀ
◊
◊
KEY, SPECIAL WOODRUFF 25X18  
1
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 73  
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HONDA GX390K1QA2/GX390U1QA2 — IGNITION COIL ASSY.  
PAGE 74 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — IGNITION COIL ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
1
1
2
5
8
ꢀ
◊
◊
30500ZF6W02  
30500ZF6W02  
30500ZF6W03  
30700ZE1013  
31512ZE2000  
36101ZE2701  
90015883000  
90684ZA0601  
COIL ASSEMBLY, IGNITION ....................... 1 ......... REPLACES 305007E2023  
COIL ASSEMBLY, IGNITION ....................... 1 ......... S/N 1411816 AND BELOW  
COIL ASSEMBLY, IGNITION ....................... 1 ......... S/N 1411817 AND ABOVE  
CAP ASSEMBLY, NOISE SUPPRESSOR  
GROMMET, WIRE  
WIRE, STOP SWITCH 430MM  
BOLT, FLANGE 6X28  
CLIP, HARNESS  
1
1
1
2
1
12  
13  
◊
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 75  
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HONDA GX390K1QA2/GX390U1QA2 — CARBURETOR ASSY.  
PAGE 76 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — CARBURETOR ASSY.  
CARBURETOR ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
2
3
4
#%  
16010ZE2812  
16011ZA0931  
16013ZA0931  
16015ZE2005  
GASKET SET .............................................. 1 ......... INCLUDES ITEM W/&  
VALVE SET, FLOAT  
FLOAT SET  
1
1
*
*
ꢀ
*
CHAMBER SET, FLOAT .............................. 1 ......... INCLUDES ITEMS W/  
.................................................................................. S/N BE85B A AND BELOW  
CHAMBER SET, FLOAT .............................. 1 ......... INCLUDES ITEMS W/  
.................................................................................. S/N BE85B B AND ABOVE  
%
4
ꢀ
16015ZE8005  
16015ZE8005  
%
*
4
◊
CHAMBER SET, FLOAT  
1
*
5
6
7
8
9
16016ZH7W01  
16024ZE1811  
16028ZE0005  
16044ZE3W20  
16100ZF6V00  
SCREW SET  
1
*
%
*
SCREW SET, DRAIN ................................... 1 ......... INCLUDES ITEMS W/  
SCREW SET B ............................................ 1 ......... INCLUDES ITEMS W/  
CHOKE SET  
CARBURETOR ASSY., BE85BA ................. 1 ......... INCLUDES ITEMS W/  
.................................................................................. S/N 2255423 AND BELOW  
CARBURETOR ASSY., BE85B B ................ 1 ......... INCLUDES ITEMS W/  
.................................................................................. S/N 2255424 AND ABOVE  
#
#
*
1
*
ꢀ
*
9
ꢀ
16100ZF6V01  
*
9
◊
16100ZF6V01  
16124ZE0005  
16166ZF6V00  
16172ZE3W10  
CARBURETOR ASSY., BE85B B ................ 1 ......... INCLUDES ITEMS W/  
*
10  
11  
12  
SCREW, THROTTLE STOP  
NOZZLE, MAIN  
COLLAR, SET  
GASKET, FUEL STRAINER CUP  
INSULATOR, CARBURETOR  
SPACER, CARBURETOR  
GASKET, CARBURETOR  
GASKET, INSULATOR  
1
1
1
1
1
1
1
1
*
*
*
13 & 16173001004  
*
14  
15  
16  
17  
18  
16211ZF6000  
16220ZA0702  
16221ZF6800  
16223ZE3W00  
16610ZE1000  
LEVER, CHOKE (STANDARD) ....................1.......... INCLUDES ITEMS W/+  
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 77  
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HONDA GX390K1QA2/GX390U1QA2 — MUFFLER ASSY.  
PAGE 78 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — MUFFLER ASSY.  
NO.  
1
2
3
4
PART NO.  
PART NAME  
QTY.  
REMARKS  
18310ZE2W61  
18320ZE2W61  
18323ZE3W40  
18330ZE2W00  
18331ZE3810  
18331ZE3810  
18331ZE3811  
18333ZE3800  
18333ZK6Y00  
18333ZF6W01  
18333ZE6W01  
18355ZE2W00  
18381ZE2W10  
90013883000  
90050ZE1000  
90055ZE1000  
90055ZE1000  
90006ZE2000  
9405008000  
MUFFLER 100DB  
1
1
1
1
1
PROTECTOR, MUFFLER  
PROTECTOR, EXHAUST PIPE  
PIPE, EXHAUST  
5
5
5
6
6
6
6
7
8
ꢀ
◊
◊
ꢀ
ꢀ
ꢀ
◊
CAP, MUFFLER  
CAP, MUFFLER ........................................... 1 ......... S/N 1166160 AND BELOW  
CAP, MUFFLER ........................................... 1 ......... S/N 1166161 AND ABOVE  
GASKET, EXHAUST PIPE .......................... 1 ......... S/N 2275744 AND BELOW  
GASKET, EXHAUST PIPE .......................... 1 ......... 2275745 ~ 2638033  
GASKET, EXHAUST PIPE .......................... 1 ......... S/N 2638034 AND ABOVE  
GASKET, EXHAUST PIPE  
ARRESTER, SPARK  
1
1
1
1
4
3
1
1
5
GASKET, MUFFLER (ARRESTER)  
BOLT, FLANGE 6X12 (CT200)  
SCREW, TAPPING 5X8  
SCREW, TAPPING 4X6  
SCREW, TAPPING 4X6  
SCREW, TAPPING 6X10  
NUT, FLANGE 8MM  
10  
11  
12  
13  
14  
15  
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 79  
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HONDA GX390K1QA2/GX390U1QA2 — RECOIL STARTER ASSY.  
PAGE 80 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — RECOIL STARTER ASSY.  
NO.  
PART NO.  
PART NAME  
QTY. REMARKS  
1
1
2
2
3
4
5
6
7
8
9
ꢀ
◊
ꢀ
◊
28400ZE3W01ZA  
28400ZE3W01ZP  
28410ZE3W01ZA  
28410ZE3W01ZP  
28421ZE3W01  
28422ZE2W01  
28441ZE2W01  
28442ZE2W01  
28443ZE2W01  
28444ZE2W01  
28445ZE2W01  
28461ZE2W02  
28462ZE3W01  
28469ZE2W01  
90004ZE2W01  
90008ZE2003  
STARTER ASSY., RECOIL *R8*, RED..............1 ....... INCLUDES ITEMS W/  
STARTER ASSY., RECOIL *R280*, RED. .........1 ....... INCLUDES ITEMS W/  
CASE, RECOIL STARTER *R8*, RED  
CASE, RECOIL STARTER *R280*, RED  
PULLEY, RECOIL STARTER  
RATCHET, STARTER  
SPRING, FRICTION  
SPRING, STARTER RETURN  
SPRING, RATCHET  
RETAINER, SPRING  
HOLDER, SPRING  
*
*
1
1
1
2
1
1
2
1
1
1
1
*
*
*
*
*
*
*
*
*
10  
11  
12  
13  
GRIP, STARTER  
ROPE, RECOIL STARTER  
GRIP, REINFORCEMENT .................................1 ....... UP TO ENG. S/N 584635  
SCREW, CENTER  
*
*
◊
*
1
3
*
14  
BOLT, FLANGE 6X10  
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 81  
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HONDA GX390K1QA2/GX390U1QA2— CONTROL ASSY.  
PAGE 82 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2— CONTROL ASSY.  
NO.  
2
3
4
5
PART NO.  
PART NAME  
ARM, GOVERNOR  
ROD, GOVERNOR  
SPRING, GOVERNOR  
SPRING, THROTTLE RETURN  
CONTROL ASSEMBLY, REMOTE ............... 1 ......... INCLUDES ITEMS W/  
LEVER, CONTROL  
SPRING, LEVER  
WASHER, CONTROL LEVER  
HOLDER, CABLE  
SPACER, CONTROL LEVER  
BASE, CONTROL (###)  
SPRING, CONTROL ADJUSTING  
SPRING, CABLE RETURN  
BOLT, FLANGE (6X12) (CT200)  
BOLT, GOVERNOR ARM  
NUT, SELF-LOCK (6MM)  
SCREW, PAN (5X32)  
QTY.  
REMARKS  
16551ZE3000  
16555ZE3000  
16561ZE3000  
16562ZE3000  
16570ZE3W20  
16571ZE3W00  
16574ZE1000  
1675ZE2W00  
16576891000  
16578ZE1000  
16581ZE3W00  
16584883300  
16592883310  
90013883000  
90015ZE5010  
90114SA0000  
93500050320A  
93500050160A  
9405006000  
1
1
1
1
6
*
10  
1
1
1
1
1
1
1
1
2
1
1
1
1
1
*
11  
*
12  
*
13  
*
14  
*
15  
*
17  
*
18  
21  
*
22  
24  
*
27  
*
28  
*
SCREW, PAN (5X16)  
NUT, FLANGE (6MM)  
29  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 83  
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HONDA GX390K1QA2/GX390U1QA2 — FUEL TANK ASSY.  
PAGE 84 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — FUEL TANK ASSY.  
NO.  
1
3
PART NO.  
PART NAME  
QTY.  
REMARKS  
16854ZH8000  
RUBBER, SUPPORTER (107MM)  
JOINT, FUEL TANK  
TANK, FUEL *NH31*  
TANK, FUEL *NH1*  
TANK, FUEL *T34*  
1
1
1
1
1
16955ZE1000  
6
6
6
6
6
6
6
6
6
6
6
6
7
7
7
ꢀ
ꢀ
ꢀ
◊
◊
◊
◊
◊
◊
◊
◊
◊
ꢀ
ꢀ
◊
17510ZE3010ZA  
17510ZE3010ZB  
17510ZE3010ZA  
17510ZE3020ZA  
17510ZE3020ZB  
17510ZE3020ZD  
17510ZE3800ZA  
17510ZE3800ZC  
17510ZE3800ZE  
17510ZE3801ZA  
17510ZE3801ZC  
17510ZE3801ZE  
17620ZH013  
TANK, FUEL *NH31* .................................... 1 ......... S/N 1213085 AND BELOW  
TANK, FUEL *NH1* ...................................... 1 ......... S/N 1213085 AND BELOW  
TANK, FUEL *T34*....................................... 1 ......... S/N 1213085 AND BELOW  
TANK, FUEL *NH1* ...................................... 1 ......... 1213086 ~ 1383799  
TANK, FUEL *NH31* .................................... 1 ......... 1213086 ~ 1383799  
TANK, FUEL *T34*....................................... 1 ......... 1213086 ~ 1383799  
TANK, FUEL *NH1* ...................................... 1 ......... S/N 1383800 AND ABOVE  
TANK, FUEL *NH31* .................................... 1 ......... S/N 1383800 AND ABOVE  
TANK, FUEL *T34*....................................... 1 ......... S/N 1383800 AND ABOVE  
CAP COMP., FUEL FILLER ......................... 1 ......... S/N 1383800 AND ABOVE  
CAP COMP., FUEL FILLER (BLACK) .......... 1 ......... S/N 1383800 AND ABOVE  
CAP COMP., FUEL FILLER ......................... 1 ......... S/N 1530148 AND BELOW  
.................................................................................. ( CHROME PLATED)  
17620ZH023  
17620Z0T305  
8
8
8
8
9
9
14  
16  
18  
18  
ꢀ
◊
◊
◊
ꢀ
◊
17631ZH7003  
17631Z0T812  
17631Z4H800  
17631Z0T801  
17672ZE2W01  
17672ZE2W01  
91353671004  
9405008000  
FUEL, FILLER CAP (39X58X3)  
1
FUEL, FILLER CAP (39X62X3) ................... 1 ......... S/N 1530148 AND BELOW  
FUEL, FILLER CAP (39X62X3) ................... 1 ......... S/N 1530149 ~ 1552033  
FUEL, FILLER CAP (39X62X3) ................... 1 ......... S/N 1552034 AND ABOVE  
FILTER, FUEL  
1
FILTER, FUEL ............................................. 1 ......... S/N 1530148 AND BELOW  
O-RING 14MM (NOK)  
NUT, FLANGE 8MM  
TUBE, FUEL 4.5 X 235................................ 1 ......... REPL. 950014500160M  
TUBE, FUEL 4.5 X 235................................ 1 ......... S/N 1105013 AND BELOW  
.................................................................................. REPL. 950014500160M  
TUBE, FUEL 4.5 X 235 (FKM)..................... 1 ......... S/N 1105014 AND ABOVE  
1
2
ꢀ
950014523540  
950014523540  
◊
18  
19  
19  
19  
21  
28  
28  
29  
◊
ꢀ
◊
◊
91424Z5L801  
9500202080  
9500202080  
950024080008  
957010802500  
17620Z4H010  
17620Z4H020  
17672Z4H000  
CLIP, TUBE (B8)  
2
CLIP, TUBE (B8) .......................................... 2 ......... S/N 1105013 AND BELOW  
CLAMP, TUBE (D8) ...................................... 2 ......... S/N 1105014 AND ABOVE  
BOLT, FLANGE 8 X 25  
CAP COMP., FUEL FILLER ......................... 1 ......... 1530149 ~ 1552033  
CAP COMP., FUEL FILLER ......................... 1 ......... 1552034 AND ABOVE  
FILTER, FUEL ........................................... 1 ......... 1530149 AND ABOVE  
2
◊
◊
◊
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 85  
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HONDA GX390K1QA2 — GASKET KIT ASSY.  
PAGE 86 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2 — GASKET KIT ASSY.  
NO.  
PART NO.  
PART NAME  
QTY.  
REMARKS  
1
*
3
*
4
*
5
*
6
*
7
*
8
*
9
11381ZE3800  
12251ZF6W00  
12391ZE2020  
16221ZF6800  
16223ZE3W00  
18333ZF6W01  
18381ZE2W10  
061A1Z6700  
GASKET, CASE COVER  
GASKET, CYLINDER HEAD  
GASKET, CYLINDER HEAD COVER  
GASKET, CARBURETOR  
GASKET, INSULATOR  
1
1
1
1
1
1
1
GASKET, EXHAUST PIPE  
GASKET, MUFFLER (ARRESTER)  
GASKET KIT ............................................... 1 ......... INCLUDES ITEMS W/  
*
.................................................................................. REPLACES 06111ZF6407  
.................................................................................. S/N 2949254  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 87  
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HONDA GX390K1QA2/GX390U1QA2 — LABELS ASSY.  
GX-390K1QA2  
GX-39
PAGE 88 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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HONDA GX390K1QA2/GX390U1QA2 — LABELS ASSY.  
NO.  
PART NO.  
PART NAME  
MARK, OPERATOR  
MARK,, THROTTLE INDICATION  
EMBLEM ..................................................1............. S/N 3249629 AND BELOW  
EMBLEM ..................................................1............. S/N 3249630 AND ABOVE  
EMBLEM ..................................................1............. S/N 1398206 AND BELOW  
EMBLEM ..................................................1............. S/N 1398207 AND ABOVE  
LABEL, CAUTION  
MARK, CHOKE (ORANGE)  
QTY.  
1
1
REMARKS  
1
3
4
4
4
4
6
8
9
◊
◊
ꢀ
ꢀ
◊
◊
ꢀ
ꢀ
ꢀ
87516ZH7000  
87532ZH7000  
87521ZF6W01  
87521ZF6W02  
87521ZF6W03  
87521ZF6W04  
87522ZH9010  
87528ZE2810  
87530ZF6W10  
87532ZH8810  
87586ZH7W00  
1
1
LABEL, SPECIFICATION .........................1............. TO ENGINE S/N 2172909  
MARK, OIL ALERT (E)  
LABEL, FUEL CAUTION........................... 1............. TO ENGINE S/N 2166102  
10  
22  
ꢀ
1
ꢀ
ꢀ
GX390K1QA2: Model MS120 December 2006 And Below  
GX340U1QA2: Model MS120 January 2007 And Above  
◊
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 89  
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TERMS AND CONDITIONS OF SALE — PARTS  
PAYMENT TERMS  
5. Partsmustbeinnewandresalablecon- Multiquipreservestherighttoquoteandsell  
dition,intheoriginalMultiquippackage(if directtoGovernmentagencies,andtoOriginal  
Terms of payment for parts are net 30 days.  
any), and with Multiquip part numbers Equipment Manufacturer accounts who use  
FREIGHTPOLICY  
clearlymarked.  
our products as integral parts of their own  
products.  
All parts orders will be shipped collect or  
prepaidwiththechargesaddedtotheinvoice.  
All shipments are F.O.B. point of origin.  
Multiquip’sresponsibilityceaseswhenasigned  
manifesthasbeenobtainedfromthecarrier,  
andanyclaimforshortageordamagemustbe  
settledbetweentheconsigneeandthecarrier.  
6. Thefollowingitemsarenotreturnable:  
SPECIALEXPEDITINGSERVICE  
a. Obsolete parts. (If an item is in the  
price book and shows as being re- A$35.00surchargewillbeaddedtotheinvoice  
placedbyanotheritem,itisobsolete.) forspecialhandlingincludingbusshipments,  
insuredparcelpostorincaseswhereMultiquip  
mustpersonallydeliverthepartstothecarrier.  
(such as gaskets, seals, “O” rings,  
b. Any parts with a limited shelf life  
andotherrubberparts)thatwerepur- LIMITATIONSOFSELLER’SLIABILITY  
MINIMUMORDER  
chasedmorethansixmonthspriorto  
thereturndate.  
Multiquip shall not be liable hereunder for  
damagesinexcessofthepurchasepriceofthe  
TheminimumchargeforordersfromMultiquip  
is $15.00 net. Customers will be asked for  
instructionsregardinghandlingofordersnot  
meetingthisrequirement.  
c. Anylineitemwithanextendeddealer item with respect to which damages are  
netpriceoflessthan$5.00.  
claimed, and in no event shall Multiquip be  
liable for loss of profit or good will or for any  
otherspecial,consequentialorincidentaldam-  
ages.  
d. Special order items.  
RETURNEDGOODSPOLICY  
e. Electricalcomponents.  
f. Paint,chemicals,andlubricants.  
g. Decalsandpaperproducts.  
h. Itemspurchasedinkits.  
Returnshipmentswillbeacceptedandcredit  
willbeallowed,subjecttothefollowingprovi-  
sions:  
LIMITATIONOFWARRANTIES  
Nowarranties,expressorimplied,aremade  
in connection with the sale of parts or trade  
accessoriesnorastoanyenginenotmanufac-  
tured by Multiquip. Such warranties made in  
connectionwiththesaleofnew,completeunits  
are made exclusively by a statement of war-  
rantypackagedwithsuchunits,andMultiquip  
neitherassumesnorauthorizesanypersonto  
assume for it any other obligation or liability  
whatever in connection with the sale of its  
products.Apartfromsuchwrittenstatementof  
warranty, there are no warranties, express,  
impliedorstatutory,whichextendbeyondthe  
descriptionoftheproductsonthefacehereof.  
1. AReturnedMaterialAuthorizationmust  
be approved by Multiquip prior to ship-  
ment.  
7. Thesenderwillbenotifiedofanymaterial  
receivedthatisnotacceptable.  
2. ToobtainaReturnMaterialAuthorization,  
alistmustbeprovidedtoMultiquipParts  
Salesthatdefinesitemnumbers,quanti-  
ties, and descriptions of the items to be  
returned.  
8. Suchmaterialwillbeheldforfiveworking  
days from notification, pending instruc-  
tions.Ifareplyisnotreceivedwithinfive  
days,thematerialwillbereturnedtothe  
senderathisexpense.  
a. Thepartsnumbersanddescriptions  
must match the current parts price  
list.  
9. Creditonreturnedpartswillbeissuedat  
dealer net price at time of the original  
purchase,lessa15%restockingcharge.  
b. The list must be typed or computer  
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. The list must state the reason(s) for  
thereturn.  
Effective: February 22, 2006  
d. The list must reference the sales  
order(s)orinvoice(s)underwhichthe  
itemswereoriginallypurchased.  
11. Credit issued will be applied to future  
purchasesonly.  
e. The list must include the name and  
phonenumberofthepersonrequest-  
ingtheRMA.  
PRICINGANDREBATES  
Prices are subject to change without prior  
notice.Pricechangesareeffectiveonaspe-  
cificdateandallordersreceivedonorafterthat  
datewillbebilledattherevisedprice.Rebates  
3. AcopyoftheReturnMaterialAuthoriza-  
tionmustaccompanythereturnshipment.  
4. Freight is at the sender’s expense. All forpricedeclinesandaddedchargesforprice  
partsmustbereturnedfreightprepaidto increaseswillnotbemadeforstockonhand  
Multiquip’sdesignatedreceivingpoint.  
atthetimeofanypricechange.  
PAGE 90 — MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08)  
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NOTES  
MS120 HYDRAULIC MIXER • OPERATION AND PARTS MANUAL — REV. #0 (07/10/08) — PAGE 91  
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OPERATION AND PARTS MANUAL  
HERE’S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL  
NUMBER ON-HAND WHEN CALLING  
PARTSDEPARTMENT  
800-427-1244  
310-537-3700  
FAX: 800-672-7877  
FAX: 310-637-3284  
SERVICEDEPARTMENT  
800-478-1244  
310-537-3700  
FAX: 310-537-4259  
TECHNICALASSISTANCE  
800-478-1244  
FAX: 310-631-5032  
WARRANTYDEPARTMENT  
800-421-1244, EXT. 279 FAX: 310-537-1173  
310-537-3700, EXT. 279  
SALESDEPARTMENT  
310-661-4242  
FAX: 310-604-9237  
877-289-7869 (877-BUY-STOW)  
© COPYRIGHT 2008, MULTIQUIP INC.  
Multiquip Inc, and the STOW logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other  
trademarks are the property of their respective owners and used with permission.  
This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.  
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical  
data contained in this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifications,  
design or the information published in this publication at any time without notice and without incurring any obligations.  
Your Local Dealer is:  
MQSTOWCONSTRUCTIONEQUIPMENT  
A DIVISION OF MULTIQUIP INC.  
POST OFFICE BOX 6254  
CARSON, CA 90749  
310-537-3700 • 888-252-MQ STOW [888-  
252-7869]  
Atlanta • Boise • Newark • Quebec, Canada  
Manchester, UK • Rio de Janeiro, BR • Puebla, MX  
FAX: 310-537-1986 • FAX: 800-556-1986  
E-MAIL: MQ STOW@multiquip.com • WWW:  
stowmfg.com  
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