Bolens 452 Thru 465 User Manual

Safety • Assembly • Operation • Tips & Techniques • Maintenance • Troubleshooting • Parts Lists • Warranty  
OPERATOR’S MANUAL  
*Model 462 Shown  
Chipper Shredder — Model Series 452 thru 465  
IMPORTANT  
READ SAFETY RULES AND INSTRUCTIONS CAREFULLY BEFORE OPERATION  
Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-covered, brush-  
covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).  
If a spark arrester is used, it should 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. A spark arrester  
for the muffler is available through your nearest engine authorized service dealer or contact the service department, P.O. Box 361131 Cleveland,  
Ohio 44136-0019.  
FORM NO. 770-10048I  
7/20/2006  
PRINTED IN U.S.A.  
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019  
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2EAD THE OWNERgS MANUALꢁS BEFORE STARTING AND  
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$O NOT OPERATE ON UNEVEN GROUND WHERE UNIT IS  
UNSTABLEꢂ $O NOT OPERATE ON PAVEMENTꢃ GRAVEL OR  
OTHER HARD SURFACES SINCE OBJECTS CAN RICOCHET  
AND CAUSE INJURYꢂ  
4O AVOID A FIRE HAZARDꢃ KEEP LEAVESꢃ GRASSꢃ AND OTHER  
COMBUSTIBLE MATERIALS AWAY FROM HOT ENGINE AND  
MUFFLERꢂ  
+EEP CHILDREN AND OTHERS AWAY FROM AREA OF  
OPERATIONꢂ  
7EAR APPROVED SAFETY GLASSESꢃ GLOVES AND EAR  
PROTECTIONꢂ  
USING UNITꢂ  
+EEP ALL SHIELDS AND GUARDS IN PLACE AND SECURELY  
ATTACHEDꢂ  
+EEP HANDSꢃ FEETꢃ FACEꢃ CLOTHING AND LONG HAIR OUT OF  
3HREDDER (OPPERꢃ #HIPPER #HUTE AND $ISCHARGE  
#HUTE WHILE THE ENGINE IS RUNNINGꢂ 2OTATING CUTTING  
BLADES INSIDE THESE OPENINGS WILL CAUSE SERIOUS  
PERSONAL INJURY IF CONTACTEDꢂ -ATERIAL BEING  
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Safety  
Labels  
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PROCESSED  
MAY BOUNCE BACK FROM INLET OPENINGS OR BE THROWN  
FROM THE DISCHARGE CHUTEꢂ ,ONG HAIR OR LOOSE CLOTHING  
MAY BE PULLED SUCKED INTO THE INLET OPENINGSꢂ  
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$O NOT PLACE BRANCHES OVER ꢄꢅꢆ INCH DIAMETER INTO  
THE LARGE 3HREDDER (OPPERꢂ "RANCHES OVER ꢄꢅꢆ INCH IN  
DIAMETER SHOULD BE PLACED IN THE 3MALL #HIPPER  
#HUTEꢂ  
)F THE CHIPPED SHREDDER JAMS OR BECOMES CLOGGEDꢃ  
IMMEDIATELY SHUT OFF THE ENGINE AND WAIT FOR ALL  
MOVING PARTS TO COME TO A COMPLETE STOP BEFORE  
CLEARINGꢂ  
).3425#4)/.3ꢀ  
4/ 2!)3% !.$ ,/7%2 (/00%2  
$O NOT INSTALL REMOVEꢃ ADJUSTꢃ OR SERVICE THE  
DISCHARGE SCREEN OR ANY OTHER PART WHILE THE ENGINE  
IS RUNNINGꢂ "LADE CONTACT CAN OCCURꢂ  
WARNING  
This symbol points  
out important safety  
instructions which, if  
not followed, could  
endanger the personal  
safety and/or property  
of yourself and others.  
Read and follow all  
instructions in this  
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manual before at-  
4(%  
tempting to operate  
this machine. Failure  
to comply with these  
instructions may result  
in personal injury. When  
you see this symbol.  
HEED ITS WARNING!  
7!2.).'  
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Your Responsibility  
Restrict the use  
of this power machine  
to persons who read,  
understand  
!33%-",% #(54% $%&,%#4/2  
4/ 4()3 5.)4  
"%&/2% /0%2!4).' -!#().%ꢀ  
and follow the warnings  
and instructions  
in this manual  
and on the machine.  
This Operators Manual covers a range of product specifications for various models. Characteristics and features  
discussed and/or illustrated in this manual may not be applicable to all models. MTD LLC reserves the right to  
change product specifications, designs and equipment without notice and without incurring obligation.  
3
WARNING: Engine Exhaust, some of its constituents, and certain vehicle compo-  
nents contain or emit chemicals known to State of California to cause cancer and  
birth defects or other reproductive harm.  
2
DANGER: This machine was built to be operated according to the rules for safe operation in this  
manual. As with any type of power equipment, carelessness or error on the part of the operator can  
result in serious injury. This machine is capable of amputating hands and feet and throwing objects.  
Safe  
Operation Failure to observe the following safety instructions could result in serious injury or death.  
Training  
Preparation  
1. Read, understand, and follow all instructions on the ma-  
chine and in the manual(s) before attempting to assemble  
and operate. Keep this manual in a safe place for future  
and regular reference and for ordering replacement parts.  
2. Be familiar with all controls and their proper operation.  
Know how to stop the machine and disengage them  
quickly.  
1. Thoroughly inspect the area where the equipment is to  
be used. Remove all rocks, bottles, cans, or other foreign  
objects which could be picked up or thrown and cause  
personal injury or damage to the machine.  
2. Always wear safety glasses or safety goggles during opera-  
tion or while performing an adjustment or repair, to protect  
eyes. Thrown objects which ricochet can cause serious  
injury to the eyes.  
Practices  
3. Never allow children under 16 years old to operate this  
machine. Children 16 years old and over should read and  
understand the operation instructions and safety rules in  
this manual and should be trained and supervised by a  
parent.  
3. Wear sturdy, rough-soled work shoes and close-fitting  
slacks and shirts. Loose fitting clothes or jewelry can be  
caught in movable parts. Never operate this machine  
in bare feet or sandals. Wear leather work gloves when  
feeding material in the chipper chute.  
WARNING  
4. Never allow adults to operate this machine without proper  
instruction.  
4. Before starting, check all bolts and screws for proper tight-  
ness to be sure the machine is in safe working condition.  
Also, visually inspect machine for any damage at frequent  
intervals.  
This symbol points  
out important safety  
instructions which, if  
not followed, could  
endanger the personal  
safety and/or property  
of yourself and others.  
Read and follow all  
instructions in this  
5. Keep bystanders, helpers, pets, and children at least  
75 feet from the machine while it is in operation. Stop  
machine if anyone enters the area.  
5. Maintain or replace safety and instructions labels, as  
necessary.  
6. Never run an engine indoors or in a poorly ventilated area.  
Engine exhaust contains carbon monoxide, an odorless  
and deadly gas.  
6. To avoid personal injury or property damage use extreme  
care in handling gasoline. Gasoline is extremely flammable  
and the vapors are explosive. Serious personal injury can  
occur when gasoline is spilled on yourself or your clothes  
which can ignite. Wash your skin and change clothes  
immediately.  
7. Do not put hands and feet near rotating parts or in the  
feeding chambers and discharge opening. Contact with  
the rotating impeller can amputate fingers, hands, and  
feet.  
8. Never attempt to unclog either the feed intake or  
discharge opening, remove or empty bag, or inspect and  
repair the machine while the engine is running. Shut the  
engine off and wait until all moving parts have come to a  
complete stop. Disconnect the spark plug wire and ground  
it against the engine.  
manual before at-  
a. Use only an approved gasoline container.  
b. Extinguish all cigarettes, cigars, pipes, and other  
sources of ignition.  
tempting to operate  
this machine. Failure  
to comply with these  
instructions may result  
in personal injury. When  
you see this symbol.  
c. Never fuel machine indoors.  
d. Never remove gas cap or add fuel while the engine is hot  
or running.  
e. Allow engine to cool at least two minutes before refuel-  
ing.  
f. Never over fill fuel tank. Fill tank to no more than 1/2  
inch below bottom of filler neck to provide space for fuel  
expansion.  
HEED ITS WARNING!  
Your Responsibility  
Restrict the use  
g. Replace gasoline cap and tighten securely.  
h. If gasoline is spilled, wipe it off the engine and equip-  
ment. Move machine to another area. Wait 5 minutes  
before starting the engine.  
of this power machine  
to persons who read,  
understand  
i. Never store the machine or fuel container inside where  
there is an open flame, spark, or pilot light (e.g. furnace,  
water heater, space heater, clothes dryer, etc.)  
j. To reduce a fire hazard, keep machine free of grass,  
leaves, or other debris build-up. Clean up oil or fuel  
spillage and remove any fuel soaked debris.  
k. Allow machine to cool at least 5 minutes before storing.  
and follow the warnings  
and instructions  
in this manual  
and on the machine.  
4
Operation  
Maintenance & Storage  
1. Do not put hands and feet near rotating parts or in the  
feeding chambers and discharge opening. Contact with the  
rotating impeller can amputate fingers, hands, and feet.  
2. Before starting the machine, make sure the chipper chute,  
feed intake, and cutting chamber are empty and free of all  
debris.  
1. Never tamper with safety devices. Check their proper  
operation regularly.  
2. Check bolts and screws for proper tightness at frequent  
intervals to keep the machine in safe working condition.  
Also, visually inspect machine for any damage and repair, if  
needed.  
2
3. Thoroughly inspect all material to be shredded and remove  
any metal, rocks, bottles, cans, or other foreign objects  
which could cause personal injury or damage to the  
machine.  
3. Before cleaning, repairing, or inspecting, stop the engine  
and make certain the impeller and all moving parts have  
stopped. Disconnect the spark plug wire and ground it  
against the engine to prevent unintended starting.  
4. Do not change the engine governor settings or overspeed  
the engine. The governor controls the maximum safe  
operating speed of the engine.  
Safe  
Operation  
Practices  
4. f it becomes necessary to push material through the  
shredder hopper, use a small diameter stick. Do not use  
your hands or feet.  
5. f the impeller strikes a foreign object or if your machine  
should start making an unusual noise or vibration,  
immediately shut the engine off. Allow the impeller to come  
to a complete stop. Disconnect the spark plug wire, ground  
it against the engine and perform the following steps:  
a. Inspect for damage.  
5. Maintain or replace safety and instruction labels, as neces-  
sary.  
6. Follow this manual for safe loading, unloading, transporting,  
and storage of this machine.  
7. Never store the machine or fuel container inside where  
there is an open flame, spark or pilot light such as a water  
heater, furnace, clothes dryer, etc.  
b. Repair or replace any damaged parts.  
c. Check for any loose parts and tighten to assure  
continued safe operation.  
8. Always refer to the operator’s manual for proper instructions  
on off-season storage.  
WARNING  
6. Do not allow an accumulation of processed material to build 9. If the fuel tank has to be drained, do this outdoors.  
up in the discharge area. This can prevent proper discharge  
and result in kickback of material through the feed opening.  
7. Do not attempt to shred or chip material larger than  
specified on the machine or in this manual. Personal injury  
or machine damage could result.  
10. Observe proper disposal laws and regulations for gas, oil,  
etc. to protect the environment.  
This symbol points  
out important safety  
instructions, which if  
not followed, could  
Do not modify engine  
To avoid serious injury or death, do not modify engine in any  
way.Tampering with the governor setting can lead to a runaway  
engine and cause it to operate at unsafe speeds. Never tamper  
with factory setting of engine governor.  
8. Never attempt to unclog either the feed intake or discharge  
opening while the engine is running. Shut the engine off,  
wait until all moving parts have stopped, disconnect the  
spark plug wire and ground it against the engine before  
clearing debris.  
endanger the personal  
safety and/or property  
of yourself and others.  
Read and follow all  
Notice regarding Emissions  
9. Never operate without the shredder hopper, chipper chute,  
or chute deflector properly attached to the machine. Never  
empty or change discharge bag while the engine is running.  
10. Keep all guards, deflectors and safety devices in place and  
operating properly.  
Engines which are certified to comply with California and federal  
EPA emission regulations for SORE (Small Off Road Equipment)  
are certified to operate on regular unleaded gasoline, and may  
include the following emission control systems: Engine Modifica-  
tion (EM) and Three Way Catalyst (TWC) if so equipped.  
instructions in this man-  
ual before attempting to  
operate this machine.  
Failure to comply with  
these instructions may  
result in personal injury.  
When you see this  
11. Keep your face and body back and to the side of the chipper  
chute while feeding material into the machine to avoid  
accidental kickback injuries.  
Your Responsibility  
Restrict the use of this power machine to persons who read, un-  
derstand and follow the warnings and instructions in this manual  
and on the machine.  
12. Never operate this machine without good visibility or light.  
13. Do not operate this machine on a paved, gravel or non-level  
surface.  
symbol.  
HEED IT’S WARNING!  
14. Do not operate this machine while under the influence of  
alcohol or drugs.  
15. Muffler and engine become hot and can cause a burn. Do  
not touch.  
Your Responsibility  
Restrict the use  
16. Never pick up or carry machine while the engine is running.  
of this power machine  
to persons who read,  
understand  
and follow the warnings  
and instructions  
in this manual  
and on the machine.  
5
IMPORTANT: This unit is shipped without gasoline or oil  
in the engine. Be certain to service engine with gasoline  
and oil as instructed in the separate engine manual  
before operating your machine.  
A
3
Loose Parts In Carton  
a. Hopper Assembly  
b. Chute Deflector  
c. Chipper Chute  
d. Bag  
e. Safety Glasses  
f. Engine Oil  
Setting Up  
Your Chipper  
Shredder  
Attaching The Hopper  
Assembly  
1. a. Remove six hex nuts and washers from the weld  
studs on the impeller housing. Do not remove the  
support plate. See Figure 3-1.  
B
b. Place hopper assembly into position in front of  
impeller housing, aligning holes in hopper assembly  
collar with weld studs.  
C
IMPORTANT  
This unit is shipped  
without gasoline or  
oil in the engine. Be  
certain to service  
Figure 3-1  
c. Slide hopper assembly onto weld studs and replace  
washers and hex nuts. Do not tighten completely.  
2. a. Lift hopper assembly up to impeller bracket  
assembly.  
b. Slide the release rod out slightly to hook the hopper  
bracket onto the rod. See Figure 3-2.  
engine with gasoline  
and oil as instructed  
in the separate engine  
manual before operat-  
ing your machine.  
A
c. Tighten the six hex nuts that secure hopper  
assembly to impeller housing and also tighten the  
hex nuts that secure hopper bracket to hopper  
assembly.  
B
NOTE: All references  
in this manual to the  
left or right side of  
the chipper shredder  
is from the operating  
position only. Excep-  
tions, if any, will be  
specified.  
Figure 3-2  
NOTE: This Operators  
Manual covers a range  
of product specifica-  
tions for various  
B
models. Characteristics  
and features discussed  
and/or illustrated in this  
manual may not be ap-  
plicable to all models.  
MTD LLC reserves the  
right to change product  
specifications, designs  
and equipment without  
notice and without  
A
B
A
incurring obligation.  
Figure 3-3  
6
Attaching The Chute Deflector  
3. a. Remove the wing knobs from each side of the lower  
impeller housing.  
B
b. Remove the hex lock nut, spacers, and hex bolt from  
the top of the impeller housing. See Figure 3-3.  
4. a. Align the chute deflector in position on the  
discharge opening and insert hex bolt with spacer  
through hinge on chute deflector (spacers fit inside  
of hinges). See Figure 3-4.  
3
A
Setting Up  
Your Chipper  
Shredder  
b. Place second spacer over hex bolt inside other  
hinge and secure with hex lock nut.  
C
c. Secure both sides of chute deflector to impeller  
housing using wing knobs previously removed.  
Attaching The Chipper Chute  
(Model Series 460)  
5. a. Remove the three cupped washers and hex nuts  
from weld studs around the opening on the side of  
the impeller housing. See Figure 3-5.  
Figure 3-4  
IMPORTANT  
This unit is shipped  
without gasoline or  
oil in the engine. Be  
certain to service  
b. Remove the hex bolts, flat washers, and lock nuts  
from the two holes on the upper end of the support  
brace.  
6. a. Align the chipper chute over the weld studs, so the  
slot in the bottom of the chute is facing down.  
b. Secure chipper chute with the three cupped  
washers (cupped side against the chipper chute)  
and hex nuts previously removed. Do not tighten  
the nuts at this time. See Figure 3-6.  
engine with gasoline  
and oil as instructed  
in the separate engine  
manual before operat-  
ing your machine.  
B
A
NOTE: All references  
in this manual to the  
left or right side of  
the chipper shredder  
is from the operating  
position only. Excep-  
tions, if any, will be  
specified.  
Fgure 3-5  
NOTE: This Operators  
Manual covers a range  
of product specifica-  
tions for various  
models. Characteristics  
and features discussed  
and/or illustrated in this  
manual may not be ap-  
plicable to all models.  
MTD LLC reserves the  
right to change product  
specifications, designs  
and equipment without  
notice and without  
A
B
Figure 3-6  
incurring obligation.  
7. The chipper shredder was shipped with one end of  
the support brace already secured to the lower frame.  
Loosen but do not remove the bolts securing the brace  
to the frame. See Figure 3-7.  
3
a. Align the holes in the chute with the holes in the top  
of the brace and attach brace to chipper chute with  
hardware previously removed. Tighten securely.  
b. Tighten the bolts securing the support brace to the  
frame.  
A
Setting Up  
Your Chipper  
Shredder  
c. Tighten the three nuts on the weld studs holding  
the chipper chute to the impeller housing.  
Attaching The Chipper Chute  
(Model Series 450)  
8. a. Remove the three cupped washers and hex nuts  
from weld studs around the opening on the side of  
the impeller housing. See Figure 3-8.  
B
C
Figure 3-ꢀ  
IMPORTANT  
This unit is shipped  
without gasoline or  
oil in the engine. Be  
certain to service  
engine with gasoline  
and oil as instructed  
in the separate engine  
manual before operat-  
ing your machine.  
NOTE: All references  
in this manual to the  
left or right side of  
the chipper shredder  
is from the operating  
position only. Excep-  
tions, if any, will be  
specified.  
Figure 3-ꢁ  
NOTE: This Operators  
Manual covers a range  
of product specifica-  
tions for various  
models. Characteristics  
and features discussed  
and/or illustrated in this  
manual may not be ap-  
plicable to all models.  
MTD LLC reserves the  
right to change product  
specifications, designs  
and equipment without  
notice and without  
incurring obligation.  
9. a. Align the chipper chute over the weld studs, so the  
slot in the bottom of the chute is facing down.  
b. Secure chipper chute with the three cupped  
washers (cupped side against the chipper chute)  
and hex nuts previously removed. Tighten the nuts  
at this time. See Figure 3-9.  
3
Attaching The Bag  
10.To attach the bag:  
Setting Up  
Your Chipper  
Shredder  
a. Place the opening of the bag completely over the  
chute deflector.  
b. Pull on the drawstring until the bag is tight around  
chute deflector opening.  
c. Clip drawstring back on itself, tight against chute  
deflector to secure into position. See Figure 3-10.  
Figure 3-9  
IMPORTANT  
This unit is shipped  
without gasoline or  
oil in the engine. Be  
certain to service  
C
engine with gasoline  
and oil as instructed  
in the separate engine  
manual before operat-  
ing your machine.  
B
A
NOTE: All references  
in this manual to the  
left or right side of  
the chipper shredder  
is from the operating  
position only. Excep-  
tions, if any, will be  
specified.  
Figure 3-10  
NOTE: This Operators  
Manual covers a range  
of product specifica-  
tions for various  
models. Characteristics  
and features discussed  
and/or illustrated in this  
manual may not be ap-  
plicable to all models.  
MTD LLC reserves the  
right to change product  
specifications, designs  
and equipment without  
notice and without  
incurring obligation.  
9
KnowYour Chipper Shredder  
4
Hopper Assembly  
Operating  
Your Chipper  
Shredder  
Release Rod  
Oil Fill†  
Chipper Chute  
WARNING  
The operation of any  
chipper shredder  
can result in foreign  
objects being thrown  
into the eyes, which  
can damage your  
eyes severely. Always  
wear the safety  
glasses provided  
with this unit or eye  
shields before chip-  
ping or shredding  
and while performing  
any adjustments or  
repairs.  
Oil Fill  
Tow Bar†  
† If Equipped  
*Model 462 Shown with Optional Tow Bar (Not Included)  
Figure 4-1  
Now that you have set up your chipper shredder for  
operation, get aquainted with its controls and features.  
These are described below and illustrated on this page.  
This knowledge will allow you to use your new equip-  
ment to its fullest potential.  
Gas and Oil Fill-Up  
1. Check oil level and add oil if necessary. Follow engine  
manual for this. See Figure 4-1 above for location of  
the oil fill.  
2. Service the engine with gasoline as instructed in the  
engine manual. See Figure 4-1 above for location of  
gas fill.  
Chipper Chute  
Allows twigs and small branches up to 3” (2” for Model  
Series 450) in diameter to be fed into the impeller for  
chipping. See Figure 4-1.  
WARNING: Use extreme care when han-  
dling gasoline. Gasoline is extremely  
flammable and the vapors are explosive.  
Never fuel the machine indoors or while  
the engine is hot or running. Extinguish  
cigarettes, cigars, pipes and other  
sources of ignition.  
Hopper Assembly  
Use extreme care  
when handling  
Allow leaves and small branches up to 1/2 diameter  
to be fed into the impeller for chipping and shredding.  
Material can be raked into hopper assembly by lowering  
the hopper assembly. See Figure 4-1.  
gasoline. Gasoline is  
extremely flammable  
and the vapors are  
explosive. Never fuel  
the machine indoors  
or while the engine  
is hot or running.  
Extinguish cigarettes,  
cigars, pipes and  
other sources of  
ignition.  
Release Rod  
The release rod is located on the impeller bracket  
assembly and it is used to release or lock the hopper  
when raising or lowering. See Figure 4-1.  
WARNING: The operation of any  
chipper shredder can result in foreign  
objects being thrown into the eyes,  
which can damage your eyes se-  
verely. Always wear the safety glasses  
provided with this unit or eye shields  
before chipping or shredding and while  
performing any adjustments or repairs.  
Tow Bar (If Equipped)  
Use the tow bar to tow the chipper shredder behind a  
tractor to a job site. See Figure 4-1.  
NOTE: If your unit is not equipped with a tow bar, you  
may contact Customer Support as instructed on page 2  
for information regarding price and availability.  
10  
This Operators Manual covers a range of product  
specifications for various models. Characteristics and fea-  
tures discussed and/or illustrated in this manual may not  
be applicable to all models. MTD LLC reserves the right  
to change product specifications, designs and equipment  
without notice and without incurring obligation.  
STOP  
4
Starting Engine  
Operating  
Your Chipper  
Shredder  
WARNING: Never run the engine  
indoors or in a poorly ventilated area.  
Engine exhaust contains carbon monox-  
ide, an odorless and deadly gas.  
Figure 4-2  
Stopping Engine  
1. Move throttle control lever to STOP or OFF position.  
2. Disconnect spark plug wire from spark plug and  
ground against the engine.  
IMPORTANT: Because this manual covers several  
different model units, different starting instructions may  
apply to your particular engine. Some engines may have  
a fuel petcock, some may not. Some engines may have  
On/Off switches, other may not. Some units will utilize a  
choke system, while others will require priming. These  
factors depend on what make and model engine comes  
with your particular unit. For these reasons, please refer  
to the engine operator’s manual for the correct starting  
procedure.  
NOTE: See your engine manual packed with your unit  
for more detailed instructions.  
Using The Chipper Shredder  
WARNING  
Yard waste such as leaves and pine needles can be  
raked up through the hopper assembly for shredding.  
After material has been shredded by the flail blades  
on the impeller assembly, it will be discharged out of  
opening or into catcher bag. Do not attempt to shred  
or chip any material other than vegetation found in a  
normal yard (i.e. branches, leaves, twigs, etc.) Avoid  
fibrous plants such as tomato vines until they are  
thoroughly dried out. Twigs and small branches up to 3”  
(2” for Model Series 450) in diameter can be fed into  
the chipper chute.  
Never run the engine  
indoors or in a poorly  
ventilated area. Engine  
exhaust contains  
carbon monoxide, an  
odorless and deadly  
gas.  
1. Attach spark plug wire to spark plug. Make certain  
the metal cap on the end of the spark plug is fastened  
securely over the metal tip on the spark plug.  
2. Engines with choke lever:  
Move choke lever on engine to CHOKE position. (A  
warm engine may not require choking).  
Engines with primer:  
Lowering The Hopper Assembly  
1. With one hand grasp the handle at the top of the  
hopper assembly and lift slightly.  
Prime engine as instructed in separate engine manual.  
3. The throttle control lever is located on the engine.  
Move engine throttle control lever to FAST or START  
position. See Figure 4-2.  
2. With the other hand pull out on the release rod  
and lower the hopper assembly to the ground. See  
Figure 4-1.  
NOTE: A noise will be  
heard when finding the start  
of the compression cycle.  
This noise is caused by  
the flails and fingers, which  
are part of the shredding  
mechanism, and it should  
be expected until the impel-  
ler reaches full speed.  
4. Grasp starter handle and pull rope out slowly until  
engine reaches start of compression cycle (rope will  
pull slightly harder at this point).  
To Empty Bag  
1. Un-clip drawstring and loosen bag from chute  
deflector opening.  
NOTE: A noise will be heard when finding the start of  
the compression cycle. This noise is caused by the flails  
and fingers, which are part of the shredding mechanism,  
and it should be expected until the impeller reaches full  
speed.  
2. Empty bag and reattach to the discharge chute  
opening. Pull on the drawstring until the bag is tight  
around the chute opening and clip the drawstring  
tight against the chute deflector.  
IMPORTANT: The flail screen is located inside the  
housing in the discharge area. If the flail screen  
becomes clogged, remove and clean as instructed in  
SECTION 5: MAINTAINING YOUR CHIPPER SHRED-  
DER. For best performance, it is also important to keep  
the chipper blade sharp.  
5. Pull rope with a rapid, continuous, full arm stroke.  
Keep a firm grip on starter handle. Let rope rewind  
slowly.  
6. Repeat the previous steps until engine fires. When  
engine starts, move choke control (if equipped)  
gradually to RUN position.  
11  
Lubrication  
1. Lubricate the release rod and spring with light oil once  
a season. See Figure 5-1.  
Lubricate these  
points before  
reassembly.  
2. Lubricate the pivot points on the hopper assembly with  
light oil once a season. See Figure 5-1.  
5
3. Lubricate the pivot points on the discharge chute with  
light oil once a season. See Figure 5-1.  
Maintaining  
Your Chipper  
Shredder  
4. Follow the accompanying engine manual for lubrica-  
tion schedule and instruction for engine lubrication.  
Engine Care  
1. Maintain oil level as instructed in engine manual.  
2. Service air cleaner every 25 hours under normal  
conditions. Clean every few hours under extremely  
dusty conditions. Refer to engine manual.  
*Model 462 Shown  
3. Clean spark plug and reset the gap once a season.  
Check engine manual for correct plug type and gap  
specifications.  
Figure 5-1  
4. Clean engine regularly with a cloth or brush. Keep the  
cooling system (blower housing area) clean to permit  
proper air circulation. Remove all grass, dirt and  
combustible debris from muffler area.  
WARNING  
B
Always stop engine,  
disconnect spark  
plug, and ground  
against engine  
before cleaning,  
lubricating or  
doing any kind of  
maintenance on your  
machine.  
Removing The Flail Screen  
If the discharge area becomes clogged, remove the flail  
screen and clean area as follows:  
1. Stop the engine and make certain the chipper shred-  
der has come to a complete stop.  
C
A
D
2. Disconnect spark plug wire from spark plug and  
ground against the engine.  
3. a. Remove the bag and two wing knobs on each side  
of the chute deflector. See Figure 5-2.  
*Model 462 Shown  
b. Lift the chute deflector up to keep it out of the way.  
c. Remove the two hairpin clips from each clevis pin  
which extend through the housing and remove pins.  
d. Remove the flail screen from inside the housing  
and clean the screen by scraping or washing with  
water. See Figure 5-2.  
Figure 5-2  
General Recommendations  
1. Always observe safety rules when performing  
any maintenance.  
2. The warranty on this chipper shredder does not  
cover items that have been subjected to operator  
abuse or negligence. To receive full value from war-  
ranty, operator must maintain the chipper shredder  
as instructed here.  
4. Reinstall the screen, making certain to reassemble the  
flail screen with the curve side down.  
5. Reattach the chute deflector with the hardware  
previously removed and connect the bag to unit.  
3. Changing of engine-governed speed will void  
engine warranty.  
Sharpening Or Replacing Chipper  
Blades  
4. All adjustments should be checked at least once  
each season.  
1. Disconnect the spark plug wire and ground against the  
engine.  
5. Periodically check all fasteners and make sure these  
are tight.  
2. Remove the flail screen as instructed in the previous  
section.  
WARNING: Always stop engine,  
disconnect spark plug, and ground  
against engine before cleaning,  
lubricating or doing any kind of  
maintenance on your machine.  
3. Remove the chipper chute by removing three hex nuts  
and washers.  
4. Remove the chipper chute support brace (Model  
Series 460) from the frame by removing the hex bolts.  
5. Rotate impeller assembly by hand until you locate one  
of two chipper blades in the chipper chute opening.  
12  
6. Remove the blade by removing the internal hex  
screws, lock washers, and hex nuts which secure it to  
the impeller. Retain the hardware. See Figure 5-3.  
NOTE: Use a 3/16” hex key (Allen) wrench on the outside  
of the blade and a 1/2” box (or socket) wrench on the  
inside of the impeller. Hold the Allen wrench stationary  
and rotate the box (or socket) wrench to loosen the nut.  
5
Maintaining  
Your Chipper  
Shredder  
7. Install a replacement blade (Part No. 781-0490) with  
the hardware removed earlier or sharpen.  
IMPORTANT: When sharpening the blade, protect hands  
by using gloves. Follow the original angle of grind and  
make sure to remove an equal amount from each blade.  
Figure 5-3  
8. To replace the other blade, rotate the impeller to  
expose the second blade and repeat the steps above.  
NOTE: Make certain blades are reassembled with the  
sharp edge facing upward. Torque hardware to 250 - 300  
in. lbs.  
WARNING  
Sharpening Or Replacing The Shred-  
der Blade  
The impeller’s  
A
chipper blades and  
shredder blade are  
sharp. Wear leather  
work gloves to  
WARNING: The impeller’s chipper blades  
are sharp. Wear leather work gloves to  
protect your hands.  
B
A
protect your hands.  
1. Stop the engine and make certain that all moving  
parts have come to a complete stop.  
Figure 5-4  
NOTE: Use a 3/16” hex key (Allen) wrench on the  
outside of the shredder blade and a 1/2” box (or socket)  
wrench on the inside of the shredder blade. Hold the  
Allen wrench stationary and rotate the box (or socket)  
wrench to loosen the nut. Use caution when removing  
the blade to avoid contacting the weld studs on housing.  
2. Disconnect the spark plug wire and ground against the  
engine.  
3. Lower the hopper assembly and block up the housing.  
4. Remove the six hex lock nuts and flat washers  
from the weld studs on the flail housing. Retain the  
hardware.  
IMPORTANT  
Make certain chipper  
blades are reassem-  
bled with the sharp  
edge facing upward.  
Torque hardware to  
250 - 300 in. lbs.  
IMPORTANT: When sharpening the blade, follow  
the original angle of grind as a guide. It is extremely  
important that each cutting edge receives an equal  
amount of grinding to prevent an unbalanced blade.  
An unbalanced blade will cause excessive vibration  
when rotating at high speeds and may cause damage  
to the unit. The blade can be tested by balancing it on a  
screwdriver or nail. Remove metal from the heavy side  
until it is balanced evenly.  
5. Carefully separate the hopper assembly from the  
impeller assembly and remove the support plate.  
NOTE: When reassembling the support plate, make  
certain the embossed tab faces inward towards the  
impeller.  
6. Remove the two wing knobs and cupped washers that  
secure the chute deflector and raise the chute.  
7. Insert a 1/2” or 3/4” diameter pipe through the flail  
screen into the impeller to keep it from turning or  
remove the flail screen and insert a piece of wood into  
the chute opening.  
IMPORTANT  
When reassembling the  
shredder blade, tighten  
center bolt to between  
550 and 700 in.-lbs.  
and the two out bolts to  
between 250 and 350  
in.-lbs.  
StoringYour Chipper Shredder  
The following steps should be taken to prepare your  
chipper shredder for storage.  
1. Clean the equipment thoroughly.  
8. a. Remove the two internal hex screws, lock washers,  
and hex lock nuts which secure the shredder blade  
to the impeller.  
2. Wipe equipment with an oiled rag to prevent rust.  
3. Refer to engine manual for correct engine storage  
instructions.  
b. Remove the hex bolt, lock washer, and flat washer  
to completely free shredder blade. See Figure 5-4.  
4. Store unit in a clean, dry area. Do not store next to  
corrosive materials such as fertilizer.  
13  
Problem  
Cause  
Remedy  
1. Throttle lever not in correct starting  
position (if equipped).  
1. Move throttle lever to FAST or  
START position.  
Engine fails to start  
6
2. Spark plug wire disconnected.  
2. Connect wire to spark plug.  
3. Choke not in CHOKE position (if  
equipped).  
3. Move choke lever to CHOKE  
position.  
Trouble  
Shooting  
4. Fuel tank empty or stale fuel.  
4. Fill tank with clean, fresh gasoline.  
5. Engine not primed (if equipped).  
5. Prime engine as instructed in  
Engine Manual.  
6. Clean, adjust gap, or replace.  
7. Clean fuel line.  
6. Faulty spark plug.  
7. Blocked fuel line.  
8. Engine flooded.  
8. Wait a few minutes to restart, but  
do not prime.  
1. Spark plug wire loose.  
1. Connect and tighten spark  
plug wire.  
Engine runs erratic  
2. Unit running on CHOKE (if equipped).  
3. Blocked fuel line or stale fuel.  
2. Move choke lever to OFF position.  
3. Clean fuel line; fill tank with clean,  
fresh gasoline.  
For repairs beyond  
the minor adjustments  
listed here, contact  
an authorized service  
dealer.  
4. Vent in gas cap plugged.  
5. Water or dirt in fuel system.  
4. Clear vent.  
5. Drain fuel tank. Refill with  
fresh fuel.  
6. Dirty air cleaner.  
6. Refer to engine manual.  
7. Carburetor out of adjustment.  
7. See authorized service dealer.  
1. Engine oil level low.  
1. Fill crankcase with proper oil.  
2. Refer to engine manual.  
Engine overheats  
2. Dirty air cleaner.  
3. Carburetor not adjusted properly.  
3. See authorized service dealer.  
1. Spark plug gap too close.  
1. Adjust gap to .030”.  
Occasional skips  
(hesitates) at  
high speed  
2. Carburetor idle mixture adjustment  
improperly set.  
2. See authorized service dealer.  
Excessive  
Vibration  
1. Loose parts or damaged impeller.  
1. Chute deflector clogged.  
1. See authorized service dealer.  
1. Stop engine immediately and  
disconnect spark plug wire. Clean  
flail screen and inside of discharge  
opening.  
Unit does not  
discharge  
2. Foreign object lodged in impeller.  
2. Stop engine and disconnect spark  
plug wire. Remove lodged object.  
3. Low engine RPM.  
1. Low engine RPM.  
2. Chipper blade dull.  
3. Always run engine at full throttle.  
1. Always run engine at full throttle.  
Rate of discharge  
slows considerably  
or composition of  
discharged material  
changes  
2. Replace chipper blade or see your  
authorized service dealer.  
14  
NOTES  
Use this page to make notes and write down important information.  
15  
Model Series 452 Thru 465  
9
8
4
2
2
10  
12  
7
3
10  
6
20  
19  
17  
11  
22  
1
14  
21  
23  
7
8
13  
16  
23  
27  
15  
25  
11  
18  
5
24  
16  
18  
13  
11  
26  
35  
34  
34  
33  
38  
32  
30  
41  
36  
38  
31  
40  
34  
38  
39  
29  
34  
43  
42  
34  
38  
37  
28  
35  
34  
35  
16  
Ref.  
No.  
Part No.  
Description  
Lock Washer, 3/8  
1. 736-0217  
2. 714-0149B  
3. 681-0048  
4. 681-0094  
5. 711-0835  
6. 781-0457  
7. 726-0211  
8. 750-0793  
9. 712-3027  
10. 712-3004A  
11. 736-0119  
12. 681-0117  
13. 710-3025  
14. 710-0157  
15. 781-0490  
16. 710-1054  
17. 681-0030  
18. 712-0411  
19. 781-0735  
20. 719-0329  
21. 711-0833B  
22. 715-0166  
23. 736-0247  
24. 742-0571  
25. 710-1254  
26. 681-0004A  
27. 710-0825  
28. 781-0515  
29. 781-0574  
30. 681-0104  
31. 732-0306  
32. 736-0117  
33. 714-0104  
34. 736-0264  
35. 710-0376  
36. 748-0453  
37. 736-0362  
38. 712-0429  
39. 731-1710A  
40. 681-0123  
41. 711-1128  
42. 731-1707  
43. 710-3008  
Cotter Pin  
Wing Knob 5/16-18  
Chute Deflector Assembly  
Clevis Pin  
Parts List  
Shredder Screen  
U-Nut 5/16-18  
Spacer  
Hex Lock Nut 1/4-20  
Hex Lock Nut 5/16-18  
Lock Washer 5/16  
Inner Impeller Housing Assembly  
Hex Cap Screw 5/16-18 x.625  
Hex Cap Screw 5/16-24 x.75  
Chipper Blade  
To order replacement  
parts, contact  
1-800-800-7310 or visit  
Hex Cap Screw 5/16-24 x 1.0  
Impeller Assembly  
Hex Lock Nut 5/16-24  
Retainer Pin Clip  
Flail Blade  
Clevis Pin  
Pin  
NOTE: This Operators  
Manual covers a range  
of product specifica-  
tions for various  
Flat Washer 3/8 x 1.25  
Shredder Blade  
Hex Cap Screw 3/8-24 x 2.25  
Outer Impeller Housing Assembly  
Hex Cap Screw 1/4-20 x 3.75  
Front Support Bracket  
Shredder Plate  
models. Characteristics  
and features discussed  
and/or illustrated in this  
manual may not be ap-  
plicable to all models.  
MTD LLC reserves the  
right to change product  
specifications, designs  
and equipment without  
notice and without  
Rear Hopper Bracket Assembly  
Compression Spring 1.75  
Flat Washer  
Cotter Pin  
Flat Washer.330 ID x.630 OD  
Hex Cap Screw 5/16-18 x 1.0  
Spacer,.375 ID x 2.50 LG  
Flat Washer.320 ID x 1.25 OD  
Hex Lock Nut 5/16-18  
Hopper Collar  
incurring obligation.  
Front Hopper Bracket Assembly  
Lock Rod  
Hopper Assembly  
Hex Cap Screw 5/16-18 x.75  
1ꢀ  
Model Series 452 Thru 465  
25  
26  
24  
13  
10  
1
3
4
8
31*  
6
7
2
9
33*  
12  
27*  
8
30*  
6
9
22  
7
32*  
35*  
21  
34*  
5
29*  
7
28*  
33*  
11  
10  
23  
15  
14  
20  
† łł Model Series 454 & 464  
‡ ł Model Series 452 & 462  
* If Equipped  
1ꢁ  
Ref.  
No.  
Part No.  
Description  
1. 728-0175  
2. 731-1899  
681-0095 ł łł  
Pop Rivet  
Chipper Shredder Chute  
Chipper Shredder Chute  
Chute Flap  
3. 735-0249  
4. 781-0633  
5. 681-0068A  
6. 710-0751  
7. 712-3027  
8. 710-0106  
9. 736-0173  
10. 736-0242  
11. 712-3010  
12. 749-1004  
13. 712-3004A  
14. 710-0805 î ł  
710-3180††  
Parts List  
Chute Flap Strip  
Chipper Chute Assembly  
Hex Cap Screw 1/4 -20 x.620  
Hex Lock Nut 1/4-20  
Hex Cap Screw 1/4-20 x 1.25  
Flat Washer.28 ID x.74 OD  
Bell Washer.340 ID x.872 OD  
Hex Nut 5/16-18  
Support Brace  
To order replacement  
parts, contact  
Hex Lock Nut 5/16-18  
Hex Cap Screw 5/16-18 x 1.50  
Hex Cap Screw 5/16-18 x 1.75  
Bell Washer 5/16 x 1.0  
Flat Washer  
1-800-800-7310 or visit  
15. 736-0170  
16. 736-0366† łł  
17. 738-0814‡ ł  
738-0813† łł  
Axle Assembly  
Axle Assembly  
18. 750-0786‡ ł  
19. 734-1600‡ ł  
734-1845† łł  
Spacer  
Wheel Comp., 10.0 x 2.5 Plastic  
Wheel Complete, 10.0 x 4.0 Gray  
Push Cap  
20. 726-0214  
NOTE: This Operators  
Manual covers a range  
of product specifica-  
tions for various  
21. 681-0184A î ł łł Frame  
681-0183A††  
22. 736-0451  
Frame  
Washer,.320 ID x.93 OD  
Screw, 3/8-16 x 1.250  
Elbow Fitting  
23. 710-0502A  
24. 737-0195^ ł łł  
25. 737-0298††  
26. 737-0132††  
27. 681-0133*  
28. 681-0134A*  
29. 710-3001*  
30. 711-0299*  
31. 711-0835*  
32. 712-3017*  
33. 732-0194*  
34. 736-0133*  
35. 736-0169*  
models. Characteristics  
and features discussed  
and/or illustrated in this  
manual may not be ap-  
plicable to all models.  
MTD LLC reserves the  
right to change product  
specifications, designs  
and equipment without  
notice and without  
Oil Drain Pipe  
Oil Drain End Cap  
Tongue Hitch Mount  
Base Hitch Mount  
Hex Cap Screw, 3/8-16 x.88  
Clevis Pin,.625 x 2.4  
Clevis Pin,.50 x 4.62  
Hex Nut, 3/8-16  
incurring obligation.  
† Model Series 464  
†† Model 464G Only  
‡ Model Series 462  
ł Models 452  
Spring Pin  
Flat Washer,.411 x 1.25 x 1.0  
Lock Washer, 3/8  
łł Models 454  
723-0400  
Safety Glasses (Not Shown)  
Chipper Bag Ass’y (Not Shown)  
^ Models 462 & 464D  
* If Equipped  
î Models 465  
664-04022  
664-04023†† î Chipper Bag Ass’y (Not Shown)  
19  
MANUFACTURER’S LIMITED WARRANTY FOR  
The limited warranty set forth below is given by MTD LLC with respect  
to new merchandise purchased and used in the United States, its  
possessions and territories.  
e. MTD does not extend any warranty for products sold or exported  
outside of the United States, its possessions and territories, except  
those sold through MTD’s authorized channels of export distribution.  
“MTD” warrants this product against defects in material and workman-  
ship for a period of two (2) years commencing on the date of original  
purchase and will, at its option, repair or replace, free of charge, any  
part found to be defective in materials or workmanship. This limited war-  
ranty shall only apply if this product has been operated and maintained  
in accordance with the Operator’s Manual furnished with the product,  
and has not been subject to misuse, abuse, commercial use, neglect,  
accident, improper maintenance, alteration, vandalism, theft, fire, water,  
or damage because of other peril or natural disaster. Damage resulting  
from the installation or use of any part, accessory or attachment not  
approved by MTD for use with the product(s) covered by this manual  
will void your warranty as to any resulting damage.  
Normal wear parts are warranted to be free from defects in material and  
workmanship for a period of thirty (30) days from the date of purchase.  
Normal wear parts include, but are not limited to items such as: batter-  
ies, belts, blades, blade adapters, grass bags, rider deck wheels, seats,  
snow thrower skid shoes, shave plates, auger spiral rubber and tires.  
HOW TO OBTAIN SERVICE: Warranty service is available, WITH  
PROOF OF PURCHASE, through your local authorized service  
dealer. To locate the dealer in your area, check your Yellow Pages,  
or contact MTD LLC at P.O. Box 361131, Cleveland, Ohio 44136-  
0019, or call 1-800-800-7310 or 1-330-220-4683 or log on to our  
f. Replacement parts that are not genuine MTD parts.  
g. Transportation charges and service calls.  
No implied warranty, including any implied warranty of mer-  
chantability of fitness for a particular purpose, applies after the  
applicable period of express written warranty above as to the  
parts as identified. No other express warranty, whether written or  
oral, except as mentioned above, given by any person or entity,  
including a dealer or retailer, with respect to any product, shall  
bind MTD. During the period of the warranty, the exclusive remedy  
is repair or replacement of the product as set forth above.  
The provisions as set forth in this warranty provide the sole and  
exclusive remedy arising from the sale. MTD shall not be liable  
for incidental or consequential loss or damage including, without  
limitation, expenses incurred for substitute or replacement lawn  
care services or for rental expenses to temporarily replace a  
warranted product.  
Some states do not allow the exclusion or limitation of incidental or  
consequential damages, or limitations on how long an implied warranty  
lasts, so the above exclusions or limitations may not apply to you.  
In no event shall recovery of any kind be greater than the amount of the  
purchase price of the product sold. Alteration of safety features of  
the product shall void this warranty. You assume the risk and liability  
for loss, damage, or injury to you and your property and/or to others and  
their property arising out of the misuse or inability to use the product.  
This limited warranty shall not extend to anyone other than the original  
purchaser or to the person for whom it was purchased as a gift.  
HOW STATE LAW RELATES TO THIS WARRANTY: This limited  
warranty gives you specific legal rights, and you may also have other  
rights which vary from state to state.  
This limited warranty does not provide coverage in the following cases:  
a. The engine or component parts thereof. These items may carry a  
separate manufacturer’s warranty. Refer to applicable manufacturer’s  
warranty for terms and conditions.  
b. Log splitter pumps, valves, and cylinders have a separate one year  
warranty.  
c. Routine maintenance items such as lubricants, filters, blade  
sharpening, tune-ups, brake adjustments, clutch adjustments, deck  
adjustments, and normal deterioration of the exterior finish due to  
use or exposure.  
IMPORTANT: Owner must present Original Proof of Purchase to obtain  
warranty coverage.  
d. Service completed by someone other than an authorized service  
dealer.  
MTD LLC, P.O. BOX 361131 CLEVELAND, OHIO 44136-0019; Phone: 1-ꢁ00-ꢁ00-ꢀ310, 1-330-220-46ꢁ3  

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