Snapper SAC55140BV User Manual

OPERATOR’S  
MANUAL  
Chipper/Shredder  
5/14 Series  
Mfg. No.  
85637  
1692203  
1692352  
1692722  
9050100  
Description  
Model SAC55140BV, 5HP Chipper Shredder  
Model 5/14, 5HP Chipper Shredder  
Model 5/14, 5HP Chipper Shredder (Export)  
Model 5/14, 5HP Chipper Shredder (Export)  
Model 5/14, 5HP Chipper Shredder  
8/14 Series  
Mfg. No.  
1692330  
1692568  
1692331  
Description  
Model 8/14, 8HP Chipper Shredder  
Model 8/14, 8HP Chipper Shredder (Export)  
Model 8/14, 8HP Chipper Shredder  
1713249-04  
(Supercedes 1713250)  
Rev. Date 9/2003, Revision No.04  
TP 100-2167-04-CS-SBN  
Safety Rules  
Safe operation of the chipper/shredder unit requires that  
all operating and safety instructions be obeyed by every-  
one who uses, services, or otherwise handles the unit.  
GENERAL  
The Safety Alert symbol shown here is used to alert  
you to important safety information that must be  
read, fully understood, and followed at all times when  
handling, transporting, operating, servicing, or storing  
your chipper/ shredder unit.  
Although the instructions and warnings appearing in this  
manual cover most normal operating conditions, every-  
one using the chipper/shredder unit must also always fol-  
low safe work practices while operating, servicing, or  
handling the chipper/shredder unit under any conditions  
not specifically covered in this manual.  
Each safety alert symbol is followed by a “signal word”  
that advises you of the relative intensity, or level, of the  
hazard the safety alert instructions pertain to.  
SETTING UP  
The following list of signal words is being provided to  
help you understand the intensity levels associated with  
each signal word used in this manual.  
1. Although most assembly has been done at the facto-  
ry, your chipper/shredder unit requires minor assem-  
bly and the addition of engine oil before it can be  
used. Never attempt to start or operate the unit  
unless the chipper cone and shredder hopper have  
been properly installed and engine oil has been  
added.  
DANGER  
The signal word “DANGER” is used when a seri-  
ous injury or fatality will result if the safety  
instructions that follow this signal word are not  
obeyed.  
2. Perform the required assembly in an area where the  
chipper/shredder can be handled comfortably. Never  
attempt to assemble the unit unless the engine/base  
assembly can be held or securely positioned for  
assembly needs.  
WARNING  
The signal word “WARNING” is used when a  
serious injury or fatality could result if the safety  
instructions that follow this signal word are not  
obeyed.  
3. Use proper hand tools for assembling the  
chipper/shredder. Never use tools such as  
adjustable open-end wrenches that can slip off hard-  
ware as it’s being fastened. Never use toothed grip-  
ping pliers which may damage hardware and make  
removal difficult.  
CAUTION  
The signal word “CAUTION” is used when per-  
sonal injury, or property or equipment damage  
could result if the safety instructions that follow  
this signal word are not obeyed.  
4. Always use only the hardware provided with this unit  
for assembly. Never substitute parts, or mix the  
proper position of parts during assembly. If a part is  
missing, contact your local dealer for an exact  
replacement.  
DANGER  
You must read and understand this manual and  
all safety instructions and labeling completely,  
before attempting to assemble, set-up, trans-  
port, operate, service, or install any options or  
accessories on this unit.  
5. Assemble the unit in the sequence indicated in the  
assembly instructions. Make sure all hardware is  
properly tightened after assembly is completed and  
before starting the unit.  
This chipper/shredder is a powerful machine  
designed for chipping of tree limbs and branch-  
es up to 2-1/2" in diameter (3" on Model 8/14),  
and is capable of amputating or causing serious  
injury to fingers, hands, feet, and other extremi-  
ties if accidental contact with rotating chipper  
and shredder blades should occur.  
6. Make sure all required hardware has been installed.  
Never attempt to start or operate the unit unless you  
are sure that all required hardware has been used.  
7. Inspect the shredder hopper and chipper cone for  
any debris, loose hardware, or other material that  
may have fallen in during unpacking and assembly.  
Always disconnect the spark plug wire from the spark  
plug, before removing any objects.  
Always keep hands, feet, and other extremities  
out of the shredder hopper, chipper cone, and  
discharge area, and never wear loose fitting  
clothing or jewelry that could get caught on tree  
limbs, branches, or rotating parts, and pull your  
hands, or other body parts into the rotating chip-  
per/shredder blades.  
8. Never fill the fuel tank indoors! Gasoline vapors are  
explosive, and can easily travel unnoticed to sources  
of ignition, such as pilot lights or open flames on  
water heaters, furnaces, stoves, or dryers, sparks  
from electric motors and other electrical appliances,  
2
Safety Rules  
or unattended smoking materials. Contact with these  
or any other ignition sources will cause an explosion  
or fire, serious personal injury, and damage to prop-  
erty and equipment.  
DANGER  
SPARK/FIRE HAZARD  
GAS ENGINES MAY REQUIRE  
A SPARK ARRESTER FOR SAFE OPERATION  
9. Never overfill the fuel tank. Fuel may run out of the  
tank and contact hot surfaces on the chipper/shred-  
der motor and ignite, causing a fire and/or risk of an  
explosion. Fill fuel tank to 1/2” below bottom of filler  
neck only.  
If the engine on this unit is not equipped with a  
spark arrester and is to be used on any forest,  
brush, or grass-covered unimproved land, a  
spark arrester must be added to the muffler  
before using the engine on such land. The  
arrester must be maintained in effective working  
order by the operator. In the State of California,  
the above is required by law (Section 4442 of the  
California Public Resources Code.) Other states  
may have similar laws. Federal laws apply on  
federal lands. See your authorized engine ser-  
vice center for muffler spark arrester options.  
10. Use only an approved container for fuel and always  
handle the container with extreme care. Never smoke  
while fueling the chipper/shredder or transporting the  
fuel container.  
11. Never store the fuel container or chipper/shredder  
indoors where there is a possibility of contact with  
any ignition source such as a spark, open flame, pilot  
light, heating element, or smoking materials.  
12. Never attempt to operate a unit indoors or in an  
enclosed area. Engine exhaust contains Carbon  
Monoxide, an odorless, colorless, and tasteless gas.  
If inhaled, Carbon Monoxide can cause dizziness,  
nausea, unconsciousness, and brain damage or  
death if contact is allowed to continue.  
SAFE WEARING APPAREL  
1. Always wear safety goggles to protect your eyes from  
flying debris when operating the chipper/shredder.  
One pair of safety goggles has been provided with  
the unit for your immediate use. All others in and  
around the immediate area must also wear approved  
safety glasses to protect their eyes from flying debris.  
OPERATING LOCATION  
2. Wear hearing protection when the chipper/ shredder  
is to be used for prolonged periods of time, or when-  
ever noise reaches an uncomfortable level.  
1. Always operate the chipper/shredder outdoors only,  
on a firm, level, earthen or grassy area where the unit  
will be stable and will stay in position. Never attempt  
to operate the unit on a slope, or on wet or slippery  
surfaces where you could slip and fall toward the  
chipper cone or hopper openings.  
3. When wearing work gloves, always wear only proper-  
ly fitted leather work gloves to protect your hands  
from cuts and scratches caused by tree limbs and  
branches. Never wear gloves with pull-ties or straps,  
as these could get entangled with branches and draw  
your hands into the chipper cone or shredder hopper  
cutting areas.  
2. Never operate the chipper/shredder on asphalt, con-  
crete, or other hard or paved surfaces, as material  
being ejected out of the discharge chute could rico-  
chet, causing injury to you or bystanders in the imme-  
diate area.  
4. Never wear loose fitting clothing, hanging jewelry,  
ties, scarves, or other items that could get caught on  
tree limbs, branches, or moving parts, and draw your  
body parts into the cutting areas of the chipper cone  
and shredder hopper.  
3. Never operate the chipper/shredder where children,  
pets, or others who may be unaware of the potential  
hazards associated with chipping and shredding  
operations could enter the area unexpectedly and be  
exposed to these hazards.  
5. Always tie up long hair and prevent it from hanging  
down, where it could become tangled in branches or  
get caught in rotating parts and pull you into the cut-  
ting areas.  
4. Never operate the chipper/shredder on rocky or grav-  
el covered surfaces, as this surface debris could  
enter the unit and cause extensive damage, or be  
ejected out of the machine with sufficient force to  
cause a serious injury to you or bystanders.  
6. Even if you are wearing heavy-duty leather work  
gloves, never, ever place your hands in the chipper  
cone or shredder hopper while the unit is running. If  
you must reach in to clear a jam or free up branches,  
shut the unit off, disconnect the spark plug wire at the  
spark plug, and carefully remove or clear the jammed  
material.  
5. Never operate the chipper/shredder in an area where  
sparks from the muffler could ignite surrounding  
brush or flammable materials. See following Fire  
Hazard Warning!  
3
Safety Rules  
• Check the oil level in the engine crankcase. See  
ENGINE OIL LEVEL under Servicing The  
Chipper/Shredder.  
OPERATING SAFETY  
1. Always obey the size limitations for tree limbs and  
branches stated in the Waste Materials Guide portion  
of this manual.  
11. Never attempt to clear clogs from the chipper cone,  
shredder hopper or discharge chute while the unit is  
running. Always shut the engine off, allow the rotor  
to come to a complete stop, and remove the spark  
plug wire from the spark plug before removing excess  
materials.  
2. Never leave the machine running unattended.  
Always turn off the engine, wait for the rotor to come  
to a complete stop, and disconnect the spark plug  
before leaving the area. Always move the unit to a  
safe storage area when not in use.  
12. Never fill the fuel tank while the machine is running or  
while the engine is hot. An unexpected spillover of  
fuel could contact a hot surface and ignite, causing  
fire or explosion. Turn off the engine, and allow the  
engine to cool before attempting refilling.  
3. Always maintain secure footing and solid balance  
while starting or operating the chipper/shredder.  
Never lean directly over the machine.  
4. Always stand to the side of the chipper cone when  
feeding tree limbs and branches into the unit, as tree  
limbs, branches, and harder woods may whip around  
while being chipped.  
13. Never attempt to perform any maintenance, repairs,  
or attachment of accessories while the unit is run-  
ning. Always shut the unit off, allow the rotor to come  
to a complete stop, and remove the spark plug wire  
from the spark plug before beginning these activities.  
5. Always keep hands out of the chipper cone and  
shredder hopper when feeding materials. Never  
wrap fingers tightly around branches as you are feed-  
ing them into the unit, as a sudden inward surge  
could pull your hands and arms into the unit.  
14. Never remove guards, deflectors, or warning labels  
from the unit. If any of these are found to be missing,  
take the unit out of service until the appropriate  
repairs can be made. Tag the machine so others do  
not mistakenly attempt to use it while awaiting parts  
or repairs.  
6. Always stand clear of the discharge area to avoid  
being struck by ricochets or material being ejected  
from the machine.  
15. Always make sure that the shredding chamber,  
shredder hopper, and chipper cone are empty before  
restarting the unit after it has been idle. Attempting to  
start the unit with material in these areas could cause  
the engine starting cord to stop suddenly, injuring  
your hand and fingers, or toppling the unit over.  
7. Never allow material to build up in the discharge area  
or shredding chamber, as this may cause new mater-  
ial being fed into the machine to kickback with suffi-  
cient force to injure you or other bystanders.  
8. Never allow material to build up around the engine  
during chipper/shredder operation. This could result  
in a fire, or overheating of the engine.  
16. Never tamper with any engine controls to alter or  
increase maximum unit running speed. An over  
speeding condition could cause the engine to over-  
heat, resulting in risk of fire, permanent engine dam-  
age, and voiding of your product warranty.  
9. Never attempt to reposition or move the  
chipper/shredder unit while it is running. Doing so  
could cause the machine to tip over, and reaching to  
steady the unit could result in accidental insertion of  
your hands into the chipper cone or shredder hopper  
areas.  
17. Always comply with the engine manual instructions  
for operating and periodic maintenance requirements.  
Make sure the oil level is always in the safe zone,  
and keep the air filter element clean.  
10. Never continue to operate the machine if it starts  
making unusual noise or vibration. Shut the engine  
off immediately, allow the rotor to stop, disconnect  
the spark plug wire from the spark plug, and do the  
following:  
18. Never allow children to operate the machine. Do not  
allow adults to operate it without proper instruction.  
TRANSPORTING AND STORAGE  
1. Always use the hopper handle and built-in wheels to  
move the chipper/shredder. Never lift the unit using  
the fuel tank for support. If the unit must be lifted ,  
always use at least two people, and always grip the  
unit securely using the front leg and hopper handle.  
• Inspect the unit for any signs of damage or foreign  
material in the chipping or shredding areas.  
Remove any solid material that may be preventing  
the unit from operating properly.  
2. If the unit must be tilted for transporting, consult the  
engine manual for required preparation. Normally,  
fuel and oil must be drained to prevent dangerous  
• Check for loose parts, and loose or missing hard-  
ware, and repair or replace as required.  
4
Safety Rules  
fuel leakage, and unwanted transfer of the sump oil  
into the cylinder head area.  
text on the preceding pages, or contact your local dealer.  
Should any of these labels become unreadable because  
of being worn, faded, or otherwise damaged during the  
use of your chipper/shredder, please use the part num-  
ber information provided to order a replacement label  
from your local authorized dealer.  
3. Always refill the oil sump with the recommended oil  
before attempting to use the unit again after it has  
been drained for transportation.  
4. Always observe safe refueling and fuel handling prac-  
tices when refueling the unit after transportation or  
storage.  
These labels are easily applied, and will act as a con-  
stant visual reminder to you, and others who may use  
the equipment, to follow the safety instructions neces-  
sary for safe, effective operation of your chipper/shred-  
der.  
5. Always follow the engine manual instructions for stor-  
age preparations before storing the unit for prolonged  
periods.  
6. Always follow the engine manual instructions for  
proper start-up procedures when returning the unit to  
service.  
SERVICE AND MAINTENANCE  
1. Always follow recommended engine and  
chipper/shredder procedures when performing  
required service and maintenance on the unit.  
2. Always use only factory authorized replacement parts  
when making repairs.  
3. Always comply with recommended factory specifica-  
tions on all settings and adjustments.  
4. Only factory authorized service locations should be  
utilized for major service and repair requirements.  
5. Never attempt to make major repairs on this unit  
unless you have been properly trained and certified  
to work on large capacity chipper/shredder units.  
Improper service procedures can result in hazardous  
operation, equipment damage, and voiding of manu-  
facturer’s warranty.  
Caution Label  
Part No. 5004100 (hopper)  
SAFETY DECALS  
This chipper/shredder unit has been designed and man-  
ufactured to provide you with the safety and reliability  
you would expect from an industry leader in outdoor  
power equipment manufacturing.  
Although reading this manual and the safety instructions  
it contains will provide you with the necessary basic  
knowledge to operate this equipment safely and effec-  
tively, we have placed several safety labels on the chip-  
per/shredder to remind you of this important information  
while you are operating the unit.  
Danger Label  
Part No. 5001612 (chipper cone & hopper)  
Part No. 1709529 (discharge chute)  
These important safety labels are illustrated on the right,  
and are shown here to help familiarize you with the loca-  
tion and content of the safety messages you will see as  
you perform normal chipping and shredding operations.  
Please review these labels now, and if you have any  
questions regarding their meaning or how to comply with  
these instructions, reread the complete safety instruction  
5
Assembly  
GENERAL  
All of the major assembly procedures on your new  
Chipper/Shredder were performed at the factory, and  
only the items listed in this section need to be taken care  
of to make your unit fully operational.  
TOOLS REQUIRED  
- 1/2" Box Wrench or Socket  
- 7/16" Box Wrench or Socket  
- 1/4" Hex Wrench  
HARDWARE DESCRIPTION  
The hardware pack packaged with your unit contains the  
items listed below and possibly additional hardware  
required for other models:  
Figure 1. Installing the Chipper Cone  
Description  
Qty.  
- 5/16-18 Whiz Nut  
3
2
2
4
1
2
2
- 5/16-18 x 1/2 Hex Head Bolt  
- 5/16-18 x 3/4 Hex Head Bolt  
- 5/16 Flat Washer  
- 5/16 Lockwasher  
- 1/4-20 Whiz Nut  
- 1/4-20 x 3/4 Hex Socket Screw  
Figure 2. Installing the Hopper Handle  
Be sure to clean all hardware threads of paint and debris  
before assembling.  
CHIPPER CONE  
1. See figure 1. Position the chipper cone assembly base  
over the three 5/16-18 threaded studs protruding from  
the engine plate, and attach using (3) 5/16-18 whiz  
nuts.  
2. Tighten whiz nuts securely using a box or socket  
wrench.  
Figure 3. Attaching Hopper to the Rotor  
HANDLE  
1. Lift the hopper handle up until the outer holes in the  
handle align with the holes in the shredder hopper.  
See figure 2.  
2. Secure the Hopper Handle in position using (2)  
1/4-20 x 3/4 hex socket screws, and (2) 1/4-20 Whiz  
nuts, inserting the screws from the outside of the  
shredder hopper.  
3. Tighten all four screws securely.  
Figure 4. Installing Hardware Inside Hopper  
6
Assembly  
Slide bag over dis-  
charge chute.  
Lift discharge  
Make sure bag  
noose fits over top  
of discharge chute  
and notch in chute  
bottom.  
chute and slide  
bag over chute.  
Make sure bag  
noose fits over  
top of discharge  
chute and notch  
in chute bottom.  
Pull drawstring tight  
Pull drawstring tight  
Figure 5B. Discharge Bag Installation-European model  
Figure 5A. Discharge Bag Installation  
HOPPER  
DISCHARGE BAG  
1. Attach the hopper to the rotor housing, using care to  
engage the metal lip of the hopper liner to the inside  
of the housing as shown in figure 3.  
Your unit comes equipped with a bag for collecting  
debris as it exits the discharge chute.  
See figures 5A & 5B for installation.  
2. Secure the hopper to the rotor housing using (2) 5/16  
x 1/2 hex head bolts and (2) 5/16 flat washers. Do not  
tighten hardware at this time.  
ENGINE OIL  
3. See figure 4. From the inside of the hopper, install (1)  
5/16-18 x 3/4 hex head bolt, 5/16 lockwasher, and 5/16  
flat washer into each of the upper and lower holes of  
the metal hopper liner, and tighten finger-tight.  
Fill the engine oil sump with SAE 30 oil (5W30 for winter  
use). See page 16 for additional information and the  
location of the fill-plug, or consult the engine manufactur-  
er’s literature shipped with your chipper/shredder.  
4. Make sure the hopper is properly seated on the rotor  
housing, and then tighten all hardware securely.  
7
Controls & Major Components  
C. Bag  
OPERATING CONTROLS  
The two-bushel bag is standard equipment and attaches  
in seconds for direct, one-step bagging.  
Your new chipper/shredder has been designed for both  
ease of use and lasting reliability, and features a simplified  
control system that requires just two operating controls.  
D. The Support Leg And Wheels  
These two operating controls, the Choke and the  
Throttle, are conveniently located on the chipper/  
shredder engine where they can be easily adjusted to  
start and run the unit under a variety of operating condi-  
tions.  
The sturdy support leg and wide-track wheels give your  
chipper/shredder a stable, 3-point stance, allowing solid  
positioning on virtually all surfaces. The large wheel  
diameter and durable rubber tread design make trans-  
porting the unit easy, and the low center of gravity helps  
prevent tipping while moving over bumpy or uneven ter-  
rain.  
Choke  
The choke controls the fuel to air ratio, and helps make  
cold starts easier by providing a rich, easily ignited fuel  
mixture.  
E. Fan/Rotor Housing  
This housing assembly contains the chipper knives and  
shredding hammers that process the materials you’ll be  
chipping and shredding.  
Throttle  
The throttle controls engine speed, and allows you to  
conserve fuel when idling, or to run the unit at maximum  
speed for optimal chipping and shredding performance.  
F. Engine  
The rugged, four-cycle air-cooled engine provides all the  
power necessary to readily chip or shred a wide variety  
of materials. Read the engine manufacturer’s manual,  
which has been provided with your unit, for additional  
important information.  
MAJOR COMPONENTS  
The major components of your chipper/shredder are:  
Shredder Hopper  
Discharge Chute  
• Bag  
Engine  
Chipper Cone  
Shredding Hammers  
G. Chipper Cone  
The rugged chipper cone helps guide tree limbs and  
branches directly into the chipper knives, and it’s unique  
angled mounting helps pull the material in quickly for  
aggressive chipping action.  
• The Support Leg & Wheels Chipper Knives  
• Fan/Rotor Housing  
Each of these major components serves a specific func-  
tion on the chipper/shredder. Please take a moment and  
familiarize yourself with the name, location, and function  
of these components so that you will better understand  
the safety and operating instructions provided in this  
manual. See figure 6.  
Shredding Hammers (Not shown)  
The unique design of the patented free-swinging, trian-  
gular shredding hammers and “J” hammers helps pull  
material into the shredding chamber, and increases vol-  
ume-reduction efficiency more than most other brands.  
A. Shredder Hopper  
The revolutionary design of these triangular hammers  
also provides 300% more shredding power than conven-  
tional fixed rectangular hammers, and since they can be  
rotated, their 6 different useable cutting edges help  
extend service life dramatically.  
The durable, low-profile design of the shredder hopper  
makes shredding convenient, yet holds a full size load of  
material for maximum processing capability.  
B. Discharge Chute  
The discharge chute ejects the material out of the chip-  
per/shredder, delivering processed materials to a specific  
area. The pivoting deflector shield directs debris down,  
while allowing soft materials to be ejected freely from the  
machine.  
Chipper Knives (Not shown)  
Our chipper/shredder line also features high quality, pre-  
cision-tempered, solid steel chipper knives, which can be  
sharpened again and again to extend their useful life for  
many seasons to come.  
8
Controls & Major Components  
A
B
G
Optional Vacuum Kit  
F
C
E
D
Figure 6. Component Location  
MODEL SPECIFICATIONS  
SPECIFICATIONS  
Horsepower  
MODEL 5/14  
5 H.P.  
2 1/2"  
MODEL 8/14  
8 H.P.  
Chipping Capacity  
Chipping Knives  
Shredding Hammers  
3"  
2
2
2 - Triangular  
2 - Triangular  
2 - J Hammers  
2 - J Hammers  
Shredder Capacity  
Waste Reduction Ratio  
Weight  
1/2" x 18" Long  
Up to 20:1  
97 lbs.  
1/2" x 18" Long  
Up to 20:1  
119 lbs.  
Optional Equipment  
Vac Kit  
Vac Kit  
w/Leaf Tray & Vacuum End  
w/Leaf Tray & Vacuum End  
9
Operation  
that ejects the shredded or chipped material out of the  
discharge chute, making room for more material to be  
pulled in and processed.  
DESCRIPTION  
General  
Your new chipper/shredder is designed to permit years  
of trouble-free operation while handling a wide range of  
chipping and shredding needs.  
Optional Vacuum Attachment  
The vacuum force created by the design of the fan  
blades and rotor makes it possible to equip your chip-  
per/shredder with an optional vacuum attachment that  
greatly simplifies the processing of leaves and other  
loose waste. The vacuum kit attaches directly to the back  
of the grinder, and after a cover is placed over the shred-  
der hopper, the vacuum action is diverted to the vacuum  
attachment.  
To help you get the most out of your investment, as well  
as to help you understand how the unit works, this section  
explains the basic operation of the chipper/ shredder.  
Chipper Operation  
The chipper is designed to handle tree limbs and branch-  
es up to 3" in diameter (2-1/2" on Model 5/14). The pow-  
erful motor and durable chipping knives also permit the  
unit to process tough organic matter such as corn stalks  
and berry canes.  
The vacuum kit allows leaves to be raked directly into the  
leaf tray, where vacuum action draws the material into  
the shredding chamber.  
For hard-to-reach places, a nozzle and handle assembly  
can be used to vacuum material up much like a vacuum  
cleaner. The strength of the vacuum can be adjusted for  
different situations by turning a sleeve on the assembly.  
Tree limbs and branches are inserted “butt end” first into  
the chipper cone, and are fed into the chipper block,  
where two chipper knives mounted on a heavy duty  
rotor rotate at 3600 rpm. The sharp cutting edges and  
angle of the blades actually pulls the tree limbs and  
branches into the chipper block, cutting the wood into  
small chips, and promoting rapid material processing.  
SITE LOCATION  
1. Select an area with firm, level ground, covered by dirt  
or grass. Do not operate on wet, slick surfaces, or in  
areas with heavy pedestrian traffic.  
The chips of material then pass through a slot in the rotor  
behind the chipper knives, where discharge air flow con-  
veys them through the fan chamber and out of the dis-  
charge chute.  
2. Locate the unit near the waste materials to be  
processed to reduce lifting and carrying.  
3. Trim and stack the materials for more efficient and  
safe operation of the chipper/shredder unit.  
Shredder Operation  
The shredder is designed to shred light brush, leaves,  
and other soft but bulky organic waste. As this material is  
loaded into the shredder hopper, it is pulled into the path  
of patented swinging triangular and “J” shaped shredding  
hammers.  
4. Provide sufficient room for maneuvering around the  
chipper/shredder. Never set up the work area so that  
operators must over-reach or have to step over mate-  
rials to be processed.  
5. Review all operating safety instructions before pro-  
ceeding.  
The hammers cut and grind the waste into progressively  
smaller pieces, and air flow then conveys the reduced  
waste out of the discharge chute.  
DANGER  
Because of this unique swinging hammer design and tri-  
angular shape, the Chipper/Shredder has 300% more  
shredding power than conventional rectangular shred-  
ding hammers used by others.  
Internal combustion engines produce Carbon  
Monoxide, a colorless, odorless, and tasteless  
gas that can cause dizziness, nausea, uncon-  
sciousness, and even brain damage or death if  
inhaled for prolonged periods.  
The Vacuum Action  
Operate the chipper/shredder outdoors in a well  
ventilated location only.  
In addition to the shredding hammers and chipping  
knives, the rotor has four fan blades integrated into its  
design. When the rotor is spinning, a vacuum action is  
created, which pulls waste down into the shredder hop-  
per and into the grinding chamber.  
Keep children, pets, and bystanders away from  
the operating and discharge areas.  
Failure to follow these instructions may result in  
serious injury or death to you or bystanders.  
These spinning fan blades also create a blowing force  
10  
Operation  
7. Adjust throttle speed to “high” for best chipper/shred-  
der action.  
CHECKS BEFORE STARTING  
1. Inspect the chipper cone and shredder hopper for  
debris and other objects that may have fallen into the  
machine while the unit was idle, and remove them  
before starting the unit. Before reaching into the  
openings, always disconnect the spark plug wire at  
the spark plug.  
Restarting A Warm Engine  
Restarting an engine that is already warm from previous  
running does not normally require use of the choke.  
1. Move throttle lever to “start” position.  
2. Place foot on front support leg to hold unit firmly in  
place, and adopt a stable stance.  
2. Inspect the chipper cone and shredder hopper, and  
make sure that they are firmly attached to the hous-  
ing.  
3. Pull starting rope out rapidly until engine starts. Allow  
rope to return normally.  
3. Check all parts to ensure that they are properly  
attached and that all fasteners are properly tightened.  
4. Adjust throttle speed to “high” for best chipper/shred-  
der action.  
4. Make sure the discharge chute deflector pivots freely,  
allowing mulch to be discharged freely. If the deflec-  
tor does not pivot, loosen the mounting screw slightly  
to reduce tension on the pivot point.  
Idle Speed  
Use the “low” position on the throttle lever to reduce  
stress on the engine when chipping or shredding is not  
being performed. Lowering the engine speed to “idle”  
the engine will help extend the life of the motor, as well  
as conserve fuel and reduce the noise level of the equip-  
ment.  
5. Before attempting to start the engine, make sure:  
•. oil level in engine is full.  
•. no fuel has spilled onto engine or surrounding  
components.  
Operating Speed  
•. all hardware and parts are properly secured.  
•. no foreign objects are in chipper cone or shredder  
hopper.  
For normal chipping, shredding, and vacuuming opera-  
tion, set the throttle lever to “fast”.  
•. your clothing is not excessively loose or hanging  
down, and you are not wearing jewelry or other  
articles that could get caught in the machinery.  
OPERATING INSTRUCTIONS  
General  
Your Chipper/Shredder is easy to set up and operate,  
but requires simple precautions that are very important,  
but easy to follow.  
START-UP  
The controls required to start and run the chipper/  
shredder are located on the engine and are marked  
“Choke” and “Throttle”.  
Please review the following instructions and illustrations  
carefully. Always comply with these and all other safety  
and operating instructions in this manual, and on warning  
labels on the chipper shredder unit, whenever handling  
or operating this machinery.  
A more detailed description of engine operation and all  
related precautions and procedures can be found in the  
engine manufacturer’s manual that accompanies each  
chipper/shredder.  
Always wear safety goggles when operating the chip-  
per/shredder. Never allow anyone to operate the unit or  
remain in the immediate area unless they are wearing  
approved safety goggles.  
Cold Starts  
1. Move choke lever to full choke position.  
2. Move throttle lever to “start”.  
Proper Stance For Chipping  
3. Place foot on front support leg to hold unit firmly in  
place, and adopt a stable stance.  
Always maintain a stable, well-balanced stance to one  
side of the unit when operating the chipper/ shredder.  
Never stand directly in front of the chipper cone when  
performing chipping operations, since occasional kick-  
backs may occur, and result in you being struck by the  
tree limb or branch being kicked back. Hold tree limbs  
and branches carefully to maintain control as they are  
being fed into the chipper cone, letting the self-feeding  
action of the unit pull the material in.  
4. Pull starting rope out slowly one time and allow to  
return normally.  
5. Pull starting rope out rapidly, and allow rope to return  
normally.  
6. When engine starts, gradually move choke lever to  
“no choke” position and increase throttle speed.  
11  
Operation  
*2573  
*2572  
Figure 8. Feeding Materials For Shredding  
Figure 7. Proper Stance for Chipping  
Never wrap your fingers around tree limbs and branches  
so tightly that you can’t let go quickly if the tree limb or  
branch is suddenly pulled into the chipper block or shred-  
der hopper area.  
*2574  
Leaves and other lightweight organic matter can be  
quickly shredded in your chipper/ shredder and reduced  
to 1/20th of their original volume. Place material to be  
shredded into the shredder hopper. Avoid large amounts  
of wet material that can cause shredded matter to build  
up in the discharge chute and prevent proper discharge.  
Alternate the processing of dry and wet materials to help  
prevent clogging of the discharge chute. When time per-  
mits, let wet material dry out for a few days prior to  
shredding.  
Properly Feeding Longer Materials  
For Shredding  
When processing brush, small branches, or other long  
types of organic matter, feed the materials to be shred-  
ded into the shredder hopper lengthwise, butt end first,  
to prevent clogging of the hopper. If brush gets tangled  
and clogged as it’s being fed into the hopper, never  
reach into the hopper to clear it while the unit is running.  
Shut the engine off, let the rotor come to a complete  
stop, and disconnect the spark plug before attempting to  
clear the hopper.  
NOTE: Be sure to shut off the engine and allow the rotor  
to stop completely before emptying the bag.  
Figure 9. Properly Feeding Longer Materials for  
Shredding  
12  
Operation  
MATERIAL PROCESSING  
SHUTTING DOWN  
General  
DANGER  
Engine and surrounding parts become extremely  
hot during normal use, and will cause serious  
burn injuries if touched before the engine has  
cooled.  
Most materials to be processed can be handled more  
efficiently by observing the following chipper/shredder  
operating tips:  
Allow engine to cool completely before touching  
these hot surfaces.  
Shredding  
1. Don’t overload the shredder hopper by dumping large  
volumes of material into the hopper opening.  
When you’re done using the chipper/ shredder, following  
these simple but worthwhile steps will help you shut  
down the unit properly so that your next use will be trou-  
ble-free.  
2. Alternate wet and dry material to prevent the dis-  
charge chute from becoming plugged.  
3. Never use any object to force material into the shred-  
der chamber. It could get caught in the shredding  
hammers and damage the unit, reducing shredder  
hammer effectiveness.  
1. When you have completed processing the materials  
to be chipped or shredded, shut the engine off and  
allow the rotor to come to a complete stop before pro-  
ceeding.  
Chipping  
2. Remove the spark plug wire from the spark plug to  
prevent the possibility of inadvertent starting.  
1. Prune tree limbs and large branches to limit size to  
the maximum diameter allowed. Pruning tree limbs  
and branches close to the main portion of the limb or  
branch will make feeding into the chipper cone easi-  
er, and will help you maintain control as the material  
is drawn into the chipper block.  
3. Inspect the following areas for any remaining materi-  
als that may have built up or become caught during  
the final chipping and shredding operations:  
• SHREDDER HOPPER  
2. Large, hard, or dried-out tree limbs that tend to resist  
chipping can be processed by rotating them manually  
as you alternately insert and retract them in the chip-  
per cone.  
Visually inspect inside of shredder hopper, and  
remove any material remaining inside.  
• CHIPPER CONE  
3. If the material to be chipped is extremely hard and kicks  
back forcefully, or cannot be easily controlled while it is  
being fed into the unit, remove the material immediately  
and set it aside. You may need to sharpen the chipper  
blades to process the material. Consult the mainte-  
nance and service section of this manual for sharpen-  
ing instructions, or take your unit to an authorized ser-  
vice center for prompt, reliable service.  
Visually inspect chipper cone to ensure that there  
are no pieces of tree limbs, branches, or any other  
debris remaining inside. Remove and discard this  
debris.  
• DISCHARGE CHUTE  
Lift the discharge deflector, and inspect the chute  
for clogs or other build up, and remove as  
required. This area is most likely to require clean  
out if wet or green organic materials have been  
shredded.  
4. If normal chipping operation begins to require additional  
feeding force to process material, the chipper knives  
may be in need of routine sharpening. See the mainte-  
nance and service section of this manual for sharpen-  
ing instructions, or take your unit to an authorized ser-  
vice center for prompt, reliable service.  
• ENGINE RECOIL STARTER AREA  
This area of the engine is also the intake for the  
motor’s air cooling fans. Remove any build-up of  
grass or shredded material that may have accu-  
mulated around the intake openings. Use care to  
prevent build-up from being pushed into the intake  
area during cleaning.  
5. Always try to maintain adequate control of the tree  
limbs and branches being fed into the chipper cone to  
prevent them from whipping around and causing  
injury to you or damage to the cone. Larger limbs and  
branches may have a tendency to kick back toward  
the operator, so always be alert as you feed materials  
into the cone.  
6. Cut any left-over material into 1" pieces and process  
them through the shredder hopper.  
13  
Operation  
If you are unsure about processing a material not cov-  
ered in the guide below, contact your local authorized  
dealer, or call our Customer Service Department at 414-  
284-8786 for assistance before proceeding.  
WASTE MATERIALS GUIDE  
Your chipper/shredder is designed to efficiently process  
a wide variety of organic yard and garden waste materi-  
als. To obtain consistent performance, extend the life of  
your unit, and help ensure safe operation, do not  
attempt to process non-organic materials, and always  
follow the material requirements shown in the Waste  
Materials Guide below.  
If you encounter any difficulties while processing any of  
these recommended materials, consult the troubleshoot-  
ing section of this manual for guidance and recommend-  
ed corrective action.  
OPERATION  
Shredding  
TYPE OF WASTE PERMITTED  
SIZE LIMITATIONS  
NOTES  
Dry, moist, or wet organic  
material, including leaves, plants,  
flowers, fruits, vegetables.  
Dry waste is more easily  
Branches and twigs  
up to 1/2" diameter  
and 18" long.  
Alternately chip or  
shred wet, green  
waste with dry waste  
to avoid plugging of  
discharge chute.  
processed than wet waste.  
Fruit and vegetable  
waste that will pass  
easily into the shredder  
chamber.  
Process at a feeding rate that  
allows the rotor to keep turning  
at a consistently high rate  
of speed.  
If time permits, allow wet  
material to dry out for a few  
days prior to shredding.  
Chipping  
Long, thicker tree limbs,  
smaller branches, or small  
branches grouped together  
for ease of handling.  
Tree limbs and  
branches, or small  
groups of branches.  
Bulky tree limbs and  
branches may need  
to be pruned close to  
the main stem to  
Avoid long pieces  
(over 6') as the  
pass through the  
chipper cone properly.  
Never use the chipper/shredder  
to chip very hard, dry materials  
such as kiln-dried dimensional  
lumber (2x4’s, 1x2’s, etc.), or other  
building and lumber yard materials.  
outer end can whip  
in a circular motion  
and strike you or  
bystanders, causing  
personal injuries.  
As the material is chipped,  
short lengths may be  
pushed into the chipper  
with another tree limb or  
batch of branches. Never  
place hands in chipper  
cone to feed short lengths  
of material.  
Never use the chipper/shredder to  
chip pressure-treated wood products  
such as landscape timbers, fence  
posts, or other outdoor building or  
landscaping lumber products.  
Maximum Diameter:  
Model 5/14 - 2 1/2"  
Model 8/14 - 3"  
Vacuum/  
Shredding  
(Optional)  
Light, loose, dry waste, such as  
leaves, grass clippings, and  
light shavings, or sawdust.  
Small materials that  
will not obstruct the  
vacuum hose as it’s  
being vacuumed.  
The vacuum is engineered  
for small, loose waste and  
for cleaning around decor-  
ative landscaping and  
Avoid vacuum operation on areas  
where hard, non-organic materials  
such as gravel, dirt clumps, or  
other hard objects could get  
flower beds. Twigs, wet  
leaves, and other bulky  
materials will clog the hose  
and prevent shredding.  
vacuumed into the shredder chamber.  
14  
Normal Care  
SCHEDULE  
Your chipper/shredder has been designed and produced by the industry’s leading manufacturer of outdoor power  
equipment to provide you with years of reliable operation.  
Keeping your chipper/shredder in top running condition will prolong its life, and help you obtain optimum performance  
whenever you wish to chip or shred yard or garden waste.  
Please read this normal care schedule, and observe these recommended care operating intervals to extend the life of  
your unit.  
Normal Care Procedures - Perform Each Item At Use Interval Shown  
ITEM  
Page  
15  
16  
16  
16  
16  
17  
17  
16  
17  
18  
18  
18  
18  
18  
5 Hrs  
25 Hrs  
100 Hrs*  
Check For Loose Parts & Hardware  
Check Oil Level And Add As Req’d  
Change Oil  
Change Spark Plug  
Clean Engine Air Intake Area  
Clean/Oil Air Filter Element  
Inspect/Rotate Shredding Hammers  
Clean Cooling Fins  
Inspect/Sharpen Chipping Knives  
Lubricate Wheel Axles  
Check All Safety Labels  
Inspect Starter Rope/Handle  
Inspect Chipper Cone  
Inspect Shredder Hopper & Guards  
*Perform required care yearly or at 100 Hour intervals, whichever is less.  
Unusual noise or vibration, decreased performance, or engine odor, requires immediate attention.  
SERVICING THE  
CHIPPER/SHREDDER  
If you prefer, your local authorized dealer can make these  
checks and perform the required procedures for you.  
Loose Parts And Hardware  
General  
Check the following areas, and tighten as required:  
The following information will help you make the neces-  
1.Chipper Cone & Cone Mounting  
2.Shredder Hopper  
3.Rotor Housing  
sary checks and perform the procedures required to fol-  
low the normal care recommendations made for your  
chipper/shredder unit.  
4.Deflector Shield  
15  
Normal Care  
Oil Level  
1.Oil level must be full. Check the oil level by removing  
oil fill plug. Oil level should be up to the bottom of the  
fill plug opening (see Figure 10).  
2.Add SAE 30 oil (5W30 for winter use) as necessary..  
3.Do not overfill the oil sump! Excess oil will result in  
frothing of oil, reducing the effectiveness of the oil  
and shortening engine life.  
4.After the proper oil level is reached, screw fill-plug in  
tightly, and clean surrounding area of any spillage to  
prevent sticking of debris that could fall into engine  
during next oil check.  
Changing Oil  
Figure 10. Engine Oil Fill Plug  
Effective lubrication of the engine is critical to the life  
expectancy of internal engine components. Because of  
this, engine oil should be changed yearly when the chip-  
per/shredder is used only occasionally, and more fre-  
quently depending on the amount of time the  
chipper/shredder is in use.  
*2556  
1. Drain engine oil by unscrewing drain plug in engine  
base (see Figure 11) and letting oil drain into a suit-  
able container.  
WARNING  
Never drain oil immediately after running the  
chipper/shredder, as it will be hot and could  
cause burns if allowed to splash onto your  
hands or body.  
Figure 11. Engine Oil Drain Plug  
Electrodes  
2. Dispose of used oil by returning it to an oil recycling  
center or service station with a oil recycling tank.  
3. After all old oil has been drained, screw drain plug in  
securely, and add oil as instructed in the "Oil Level”  
section, or see the engine manufacturer’s manual for  
complete details and oil specifications.  
Porcelain  
.030 Gap  
Changing The Spark Plug  
An annual spark plug change is an inexpensive preven-  
tive measure that can help keep your unit running prop-  
erly throughout the year.  
Figure 12. Spark Plug Gap Setting  
3. Using a spark plug socket and appropriate wrench,  
unscrew the spark plug from the engine.  
This chipper/shredder uses the following types of spark  
plugs: Autolite 356, Champion J-8C or equivalents.  
4. After first setting the proper gap on the replacement  
spark plug, screw the new plug in and tighten. Don’t  
over tighten, as this could crack the porcelain insula-  
tor and ruin the plug.  
1. Disconnect the spark plug wire from the spark plug.  
2. Clean the area around the spark plug to remove  
debris that could fall into the engine when the plug is  
removed.  
16  
Normal Care  
*2569  
Clean Engine Fins/Air Intake Area  
The engine that powers this chipper/shredder is air-  
cooled, and requires unobstructed air flow into and  
around the engine. For proper engine cooling, the cool-  
ing fins on the engine cylinder head area must also be  
kept clear of chipper/shredder deposits, as well as any  
other build-up of debris that could prevent heat from radi-  
ating away from the engine.  
To clean the air intake area, remove any chipper/shred-  
der build up, and then blow out the area using a stream  
of compressed air. If a compressor is not available, use a  
stiff bristle parts brush, which is available at most auto  
parts supply stores.  
Clean  
Around  
Area  
To clean the cooling fins, brush the area between the  
fins with a stiff bristle parts brush, and blow out any  
remaining debris with a stream of compressed air. If the  
cooling fins are caked with an oily build-up of  
chipper/shredder debris, using a commercially available  
engine cleaning aerosol may help loosen and remove  
the deposits.  
Figure 13. Engine Air Intake Area  
Inspect/Rotate Shredding Hammers  
If you use such a cleaning product, you must follow all  
safety and use instructions to prevent damage to the  
engine components and personal injury to you.  
The patented shredding hammers on this line of chip-  
per/shredders can be easily rotated to provide new cut-  
ting surfaces as required.  
Using a stream of water to clean the engine requires  
immediate drying of engine components to prevent rust-  
ing and possible malfunctioning of the engine’s electrical  
system.  
Triangular hammers can be rotated twice, then flipped  
over for a total of six sharp, new leading edges. “J” ham-  
mers on the Model 5/14 can be flipped over once, for a  
total of two sharp, new leading edges.  
If the shredding action of the unit seems sluggish, or you  
notice that shredded material is not shredded as thor-  
oughly as when the unit was new, the shredding ham-  
mers may need to be rotated or replaced.  
Clean/Oil/Replace Air Filter Element  
The engine air filter element filters and removes airborne  
dirt, dust, and other work site debris from the air before it  
can enter the carburetor and damage sensitive fuel pas-  
sages.  
Rotating the shredder hammers requires the following  
major steps:  
Depending on the type of air filter element installed on  
your chipper/shredder engine, you should periodically  
perform one of the following steps:  
1. Removal of the shredder hopper.  
2. Removal of the rotor housing.  
• clean and oil the air filter (foam filter only),  
• only clean the air filter (Type “A” filter),  
3. Removal, rotation, and/or replacement of the shred-  
der hammers.  
4. Replacement of the rotor housing.  
5. Replacement of the shredder hopper.  
• or replace the filter every year or 100 hours of opera-  
tion (paper filter element).  
Consult the Troubleshooting and Repair Section of this  
manual for complete disassembly, inspection, and  
replacement instructions.  
Consult the engine manufacturer’s manual provided with  
your chipper/shredder for the specific instructions that  
apply to your unit.  
Your local authorized dealer can provide this service to  
you if you do not wish to disassemble the unit and  
inspect/repair it yourself.  
If you have any doubts about what type of filter element  
you have, consult you local authorized dealer for help in  
replacing or ordering the correct element.  
17  
Normal Care  
If any label can’t be read or is missing, contact your local  
dealer for an immediate replacement. If you must use the  
unit without the label, review the label information in the  
“Safety Labels” section of this manual.  
Inspect/Sharpen Chipping Knives  
This unit’s high-quality chipping knives are manufactured  
from a high-quality precision tempered steel, and are  
designed to provide positive feeding of tree limbs and  
branches, as well as exceptionally long service life.  
Inspect Starter Rope/Handle  
The recoil starter rope and handle should be inspected for  
signs of abrasion or wear that could result in breakage.  
Normal chipping operations will gradually wear the cut-  
ting edges of these blades, but the rugged design and  
tough material used allows them to be quickly and easily  
resharpened for long-lasting, like-new performance.  
Don’t use worn out parts, since they could break while  
tension is applied to the rope, throwing you off balance.  
When tree limbs and branches begin to require addition-  
al pressure to feed into the chipping knives, it may be  
time to sharpen the cutting edges to return them to their  
original performance.  
Contact your local authorized dealer for replacement if  
these parts need to be replaced.  
Sharpening the cutting knives requires the following  
major steps:  
Inspect Chipper Cone & Shredder Hopper  
The chipper cone and shredder hopper are made of a  
highly durable polyethylene material that can withstand  
repeated abrasion and impact from normal  
1. Removal of the shredder hopper  
2. Removal of the chipper cone  
3. Removal of an access plug  
chipper/shredder waste material processing.  
4. Removal of the cutting knives  
Check these parts to make sure that they haven’t been  
damaged or worn excessively by constant use, and  
replace them if they are cracked, worn out, or no longer  
fit securely on the chipper/shredder unit.  
5. Careful, low-speed, wet grinding of a new edge  
6. Reassembly of the cutting knives to the oval chipping  
block  
Cracks, worn areas, and loose attachment points can  
cause material to jam or clog when feeding it into the  
machine, and may result in kick-back or other hazard to  
the operator.  
7. Reassembly of the chipper cone and shredder hop-  
per to the unit  
Consult the Troubleshooting and Repair Section of this  
manual for complete disassembly, inspection, and  
replacement instructions.  
Contact your local dealer for replacement parts if your  
unit shows any evidence of these problems, and discon-  
tinue use of the unit until the appropriate repairs can be  
made.  
Your local authorized dealer can provide this service to  
you if you do not wish to disassemble the unit and  
inspect/repair it yourself.  
Never try to make temporary repairs yourself, as the  
repairs could give way during chipper/shredder opera-  
tion, and expose you and bystanders in the area to risk  
of injury.  
Lubricate Wheel Axles  
The low profile and excellent balance of the unit makes  
transporting it easy, but constant exposure to dirt, debris,  
and chipper/shredder materials requires routine lubrica-  
tion of the wheels.  
Never attempt to install non-factory parts on your chip-  
per/shredder unit. These parts could appear to fit, but  
could cause operating and safety problems that might  
lead to equipment damage and/or injury.  
To lubricate, squirt 3-5 drops of SAE 30 oil on each  
wheel axle. Wipe up any run-off and spin wheels briefly  
to work oil around entire axle.  
Inspect Hopper Guards  
The hopper guards are made of a tough, flexible material  
that permits easy loading of the hopper, while preventing  
shredded pieces from being ejected out toward the oper-  
ator.  
Check Safety Labels  
The safety labels located in various positions on the  
chipper/ shredder have been placed to help remind you  
of important safety rules while you are running the chip-  
per/shredder unit.  
The hopper guards must always be intact and properly  
installed to provide protection from ejected pieces.  
While these labels are extremely durable, constant abra-  
sion from tree limbs and branches can eventually affect  
their readability. Check each label to make sure it is still  
properly affixed to the chipper/shredder, and is still com-  
pletely legible.  
If a hopper guard becomes damaged in use, do not  
operate the chipper/shredder until the hopper guard  
can be replaced.  
Contact your local authorized dealer for replacement  
parts.  
18  
Storage  
*2571  
TEMPORARY STORAGE  
(30 Days Or Less)  
Remember, the chipper/shredder fuel tank probably will  
still contain some gasoline, so never store the chipper/  
shredder indoors or in any other area where fuel vapor  
could travel to any ignition source. Fuel vapor is also  
toxic if inhaled, so never store the chipper/shredder in  
any structure used for human or animal habitation.  
Here’s a quick checklist of things to do when storing your  
chipper/shredder temporarily, or between uses:  
• Store the unit in a location where there’s no danger of  
overhead objects falling into the chipper cone or  
shredder hopper.  
Figure 14. Improper Placement Of Unit  
• Keep the unit in an area away from where children  
may come into contact with it. If there’s any chance  
of unauthorized use, remove the spark plug, and put  
it in a safe place. Be sure to protect the spark plug  
opening from foreign objects with a suitable cover.  
*2570  
• Never put the unit away while the engine is still hot  
from running. Let the engine cool down first to pre-  
vent the chance of fire.  
• Never try to lift or position the unit in the storage area  
by holding the fuel tank. Always let the engine and  
muffler cool completely before allowing yourself to  
contact these parts.  
• If the unit can’t be stored on a reasonably level sur-  
face, use a block of wood to chock the wheels.  
Never store the Chipper/Shredder where it will not be  
in a stable position.  
Figure 15. Improper Lifting Of Unit  
• Remove spark plug, and squirt 1 ounce of SAE 30 oil  
into spark plug hole.  
• Never tip the unit more than 75° from vertical, and  
never lay the unit down on its side, as this could cause  
fuel leakage, and/or undesirable oil transfer into the  
cylinder head and spark plug area. Excessive oil in the  
cylinder head will prevent unit from starting properly.  
• Plug hole and pull starter cord slowly to distribute oil  
evenly in cylinder head area.  
Reinstall spark plug.  
• Transport unit to a suitable storage location. If you  
have chosen to use a fuel stabilizer and have not  
drained the fuel system, follow all safety instructions  
and storage precautions in this manual to prevent the  
possibility of fire from the ignition of gasoline fumes.  
Remember, gasoline fumes can travel to distant  
sources of ignition and ignite, causing risk of explo-  
sion and fire.  
• Overhead objects that fall into shredder hopper may  
cause damage to the unit or serious injury to user  
and others if not detected before unit is started.  
LONG TERM STORAGE  
(Longer Than 30 Days)  
Your chipper/shredder can be safely stored during off-  
seasons by following these simple storage instructions:  
• Cover chipper/shredder unit to protect shredder hop-  
per and chipper cone from debris and foreign objects.  
• Drain fuel system completely following engine manu-  
facturer’s instructions or add fuel stabilizer to prevent  
fuel from gumming up during extended storage peri-  
od.  
• If there is any possibility of unauthorized use or tam-  
pering, remove the spark plug and store it in a safe  
place before storing the chipper/shredder unit away.  
Be sure to plug the spark plug hole to prevent foreign  
material from entering.  
• Clean external surfaces, engine and cooling fan.  
19  
Troubleshooting & Repair  
TROUBLESHOOTING  
WARNING  
Never attempt to perform any of these proce-  
dures with the engine running. Always turn the  
engine off, let the rotor come to a complete stop,  
and disconnect the spark plug wire from the  
spark plug before attempting to correct any  
operating problems.  
While normal care and routine maintenance will extend  
the life of your chipper/shredder, prolonged or constant  
use may eventually require that service be performed to  
allow it to continue operating properly. The troubleshoot-  
ing guide below lists the most common problems, causes  
and remedies.  
Failure to comply with this safety requirement  
can result in serious personal injury to you or  
bystanders.  
See the service information on the following pages for  
instructions on how to do most of these minor repairs  
yourself. If you prefer, all of these procedures can be  
performed for you by your local authorized dealer.  
SYMPTOM  
POSSIBLE CAUSE  
• Out of gas.  
REMEDIES  
Engine won’t start.  
• Add gas.  
• Spark plug wire disconnected.  
• Engine controls set wrong.  
• Connect spark plug wire.  
• Check engine controls and  
adjust.  
• Spark plug fouled.  
• Remove Spark Plug, clean, and  
replace.  
• No compression - rope pulls•  
without resistance.  
• See your local dealer.  
• No spark - electrical system  
problem.  
• See your local dealer.  
• Replace crankshaft key.  
Engine runs, but rotor.  
won’t turn.  
• Crankshaft key broken or not  
installed.  
Engine runs, rotor turns, but no  
material is being discharged.  
• Discharge chute clogged.  
• Engine not running at full RPM.  
• Clear discharge chute.  
• Adjust throttle to “Fast”.  
Excessive branch vibration when  
chipping materials.  
• Chipper knives dull.  
• Tree limbs and branches are  
extremely hard or dried out.  
• Sharpen or replace knives.  
• Material too dried out or hard  
for chipping - use for firewood.  
Unusual noise or vibration when  
processing material.  
• Rotor overloaded with material.  
• Allow unit to clear itself before  
feeding more material in .  
• Follow shut-down procedure and  
remove material from unit.  
• Sharpen or tighten knives secure  
ly.  
• Non-organic matter caught in  
shredding chamber.  
• Chipper knives dull or loose.  
• Hammers, broken, bent, or loose. • Check for proper assembly or  
replace.  
• Hammers frozen on shaft.  
• Check for obstructions and  
remove debris from hammer  
pivot areas.  
• Crankshaft bent.  
• See your local dealer for  
factory authorized repair.  
Vacuum not working.  
• Hopper lid not in place.  
• Material too wet.  
• Replace lid on hopper.  
• Allow material to dry.  
• Hose not attached properly.  
• Hose obstructed/damaged.  
• Engine not running at full RPM.  
• Attach hose per kit instructions.  
• Inspect hose - repair or replace.  
• Set throttle to “Fast”. See dealer  
if problem continues.  
20  
Troubleshooting & Repair  
*2557  
*2558  
Figure 16. Triangular Hammer Wear Area  
Figure 17. J Hammer Wear Area  
*2552  
REPAIR  
Engine Service  
Your chipper/shredder engine requires routine mainte-  
nance for long-life and trouble-free operation. Consult  
the manufacturer’s manual provided with this unit for  
specific recommendations and service procedures. In  
general, however, your engine requires only the preven-  
tive maintenance indicated on the Normal Care  
Schedule.  
Shredding Hammers  
The cutting edges of the shredding hammers may even-  
tually wear out, requiring rotation of the hammer, or com-  
plete replacement if all cutting edges have been used.  
Figure 18. Removing Shredder Hopper  
Triangular hammers can be rotated twice after the first  
edge dulls, then flipped over once and rotated again for a  
total of six cutting edges. J hammers can be flipped over  
once (Model 5/14 only), for a total of two cutting edges.  
Shredding hammers need to be rotated when shredding  
performance becomes sluggish, or when the edges of  
the hammers wear down, as shown in figures 15 and 16.  
*2559  
To inspect and service the shredding hammers, follow  
these steps:  
1. Turn engine off, allow rotor to stop completely, and  
disconnect spark plug wire.  
2. See Figure 18. Detach the shredder hopper from the  
rotor housing, leaving the liner and handle in place on  
the hopper.  
3. Remove the rotor housing by unscrewing the  
5/16-18 hex nuts that hold it to the fan housing.  
See Figure 19.  
Figure 19. Removing Rotor Housing  
21  
Troubleshooting & Repair  
4. Using leather work gloves to protect your hands from  
sharp edges, carefully rotate the rotor counterclock-  
wise until the first worn hammer is at the top position.  
6. See Figure 20. Using a 5/16” Allen wrench, remove  
the socket head capscrew (A), lockwasher (B), flat  
washer (C), and spacer tube (D), being careful to  
catch the parts as the capscrew is removed.  
5. Before proceeding, note the assembly sequence of  
the hammer, spacer, spacer tube, and hardware.  
Hammers and spacers must be reassembled in the  
same order to ensure proper rotor balance, shredding  
efficiency, and safety. See Figure 20 for correct posi-  
tion of parts.  
7. Wipe the hammer and spacer tube clean, and inspect  
for excessive wear.  
• If the spacer tube has light grooves worn into it, the  
tube may be reused by flipping its position over  
when reinstalling it.  
**2479  
The J Hammer (G) on the opposite  
side of the rotor faces outward for  
balanced rotation.  
G
F
E
D
F
C
B
D
C
B
A
E
A
H
Figure 20. Proper Hammer Assembly  
A. Capscrew, hex socket hd. w/patch,  
3/8-16 x 2, Gr. 8  
B. Lockwasher, split, 3/8  
C. Washer, flat, 7/8  
E. Spacer, 3/4 O.D., 3/4 long  
F. Washer, 3/8 (814 only)  
G. J hammer  
H. Triangular hammer  
D. Spacer, tube  
22  
Troubleshooting & Repair  
• If the spacer tube has deep grooves worn into it,  
do not reuse the part - replace it using an exact  
factory replacement part only.  
*2560  
• Rotate or flip the hammer to provide a new cutting  
edge, or install a new hammer if worn out or dam-  
aged.  
• Reassemble the hammer and related parts and  
hardware, observing the correct assembly  
sequence as shown in figures 19 and 20.  
8. Tighten the capscrew securely. For proper assembly,  
do not exceed 45 ft. lbs. of torque when tightening.  
9. Rotate rotor to expose next shredding hammer, and  
repeat steps 6 - 8. When replacing “J” hammers,  
observe the correct placement of the blade toward the  
inside or outside of the rotor assembly.  
10. If chipping knives are to be inspected or serviced, go  
to the following section on chipping knives. If service  
is to be done on shredding hammers only, proceed to  
next step below.  
Figure 21. Reassembling Shredder Hammer  
11. Reassemble the rotor housing using the 5/16-18 hex  
nuts removed earlier.  
Top View  
Side View  
1/16"  
Min.  
12. Reattach the shredder hopper, repeating the assem-  
bly sequence used when the unit was first assem-  
bled.  
13. Check all hardware for tightness and correct assem-  
bly before attempting to start unit. Do not attempt to  
start unit if extra hardware is left over after reassem-  
bly is complete. Check all hammer assemblies  
before proceeding.  
30°  
*2562  
Figure 22. Chipper Knives Minimum Cutting Edge  
Chipping Knives  
Chipping knives should be resharpened or replaced  
when tree limbs and branches require extra force to feed  
completely into the chipper block.  
*2549  
Chipping knives may be resharpened until the distance  
between the mounting holes and the top corner of the  
blade bevel is 1/16” apart. See Figure 22.  
To inspect and service the cutting knives, follow these  
steps:  
1. Turn engine off, allow rotor to stop completely, and  
disconnect spark plug wire.  
2. See Figure 18. Detach the shredder hopper from the  
rotor housing, leaving the liner and handle in place on  
the hopper.  
3. Using a 1/2” box wrench or socket, remove the chip-  
per cone and mounting casting to expose the oval  
chipping block and one chipping knife. See Figure 23.  
Figure 23. Removing Chipper Cone to Expose  
Chipping Knives.  
23  
Troubleshooting & Repair  
4. Using a 1/4” hex wrench, loosen and remove the two  
socket head cap screws holding the chipper knife in  
place (access the screw heads from the rear of the  
unit), and remove the chipper knife. See Figure 24  
for location and temporary removal of an access plug  
that permits removal of the capscrews.  
5. See Figure 25. Remove both knives through the  
opening in the front of the chipper/shredder, and  
sharpen equally or replace both blades to ensure  
proper balancing and correct chipping action.  
Access  
Plug  
• Slow-speed water-cooled grinding is suggested to  
help maintain blade temper and a long-lasting  
sharp edge. Rapid grinding and heating of blades  
will soften the edges, making repeated sharpening  
necessary.  
*2445  
Figure 24. Chipper Knife Access Plug  
• Chipper knives require a 30° bevel on the cutting  
edge (as shown in Figure 22) for efficient chipping  
action.  
*2446  
• Contact your local dealer or blade sharpening ser-  
vice if you prefer not to sharpen the blades your-  
self.  
6. Clean the chipper knife mounting areas before rein-  
stalling the blades to ensure a flat mounting surface.  
7. Install the new chipper knives using the two cap-  
screws, and two new lockwashers. Never reinstall  
chipper knives using used lockwashers, as used lock-  
washers may not hold the knives adequately.  
8. Reinstall the access plug (Figure 24) removed earlier  
for capscrew access.  
Figure 25. Removing Chipper Knife Through Front  
Opening  
9. Reattach the shredder hopper and chipper cone  
using the hardware removed during disassembly.  
Replace any hardware that appears to be damaged  
or worn excessively.  
WARNING  
Never use a malfunctioning unit to process  
material, even if it appears to be chipping materi-  
al adequately. An unexpected kick-back could  
occur, causing serious personal injury to you or  
bystanders.  
10. Check all hardware for tightness and correct assem-  
bly before attempting to start your unit. Do not  
attempt to start the unit if extra hardware is left over  
after reassembly is complete. Check for proper chip-  
per knife assembly before proceeding.  
Serious equipment damage could also result,  
voiding the warranty and requiring extensive  
repairs by a qualified service location.  
11. Test your unit before attempting to use it to perform  
chipping. Start unit, and check for unusual noise or  
vibration.  
Deflector Shield  
• Shut unit off immediately if either situation occurs,  
and re-inspect chipping knives to confirm correct  
positioning and assembly has been done.  
The deflector shield must pivot freely at all times, or  
processed material could back up, clogging the unit and  
requiring disassembly to clear.  
• If assembly is correct, blades may not have been  
sharpened evenly, causing an imbalance.  
Remove blades and sharpen evenly.  
WARNING  
Never use the unit unless the deflector shield is  
in place and operating properly. Material could  
be ejected out of the discharge chute with great  
force, injuring you or bystanders.  
• Recheck unit. If problem persists, contact your  
local dealer for assistance.  
24  
Options & Accessories  
OPTIONS & ACCESSORIES  
Several optional items and accessories are available that  
can help increase the usefulness and utility of your chip-  
per/shredder unit:  
Vacuum Attachment  
This easy-to-add accessory allows the chipper/ shredder  
to be equipped with a vacuum hose and other attach-  
ments to help simplify pick up of lightweight materials  
such as leaves and grass clippings. It can also be adjust-  
ed to vacuum without disturbing landscaping materials  
such as decorative rock.  
Technical Manuals  
Additional Technical Literature Available  
Operators Manuals  
Additional copies of this manual are available, (and as part  
of our product support commitment, we maintain a stock of  
printed operators manuals going back many years!)  
Parts Manuals  
Fully illustrated parts manuals are also available —  
these manuals show all of the product’s components in  
exploded views (“3D” illustrations which show the relationship of  
the parts and how they go together), as well as giving the replace-  
ment part numbers and quantities used. Important assembly notes and  
special torque values are included in these manuals.  
Model:  
For the applicable manuals currently available for  
your model, contact our Customer Publications  
Department at 262-284-8519. Have the informa-  
tion listed in the box at the right available when  
phoning in your request.  
Mfg. No.:  
Your Name:  
Address:  
Please allow 3 to 4 weeks for delivery.  
City, State, Zip:  
Visa/Mastercard No.:  
Card Expiration Date:  
25  
MANUFACTURING, INC.  
500 N Spring Street / PO Box 997  
Port Washington, WI 53074-0997  
© Copyright 2003 Simplicity Manufacturing, Inc.  
All Rights Reserved. Printed in USA.  

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