OPERATOR’S MANUAL
Chipper - Shredders
Model Series
462 thru 465
(Model 465A shown)
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
Warning:
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 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
PRINTED IN U.S.A.
FORM NO. 770-10038A
5/99
SECTION 3: IMPORTANT SAFE OPERATION PRACTICES
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 MANUAL BEFORE ATTEMPTING
TO OPERATE YOUR CHIPPER-SHREDDER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS
MAY RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL: HEED ITS WARNING.
WARNING:
The Engine Exhaust from this product contains chemicals known to the
State of California to cause cancer, birth defects or other reproductive harm.
DANGER: Your chipper-shredder 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 chipper-shredder is capable of amputating fingers and hands and throwing
objects. Failure to observe the following safety instructions could result in serious injury or death.
1. GENERAL OPERATION
• Read this operator's manual carefully in its entirety
repair, to protect eyes from foreign objects that may
be thrown from the machine.
before attempting to assemble this machine. Read,
understand, and follow all instructions on the machine
and in the manual(s) before operation. Be completely
familiar with the controls and the proper use of the
machine before operating it. Keep this manual in a
safe place for future and regular reference and for
ordering replacement parts.
• Never place your hands, feet, or any part of your
body into the shredder hopper, chipper chute,
discharge opening, or near any moving part while the
engine is running. Keep clear of the discharge
opening at all times. If it becomes necessary to push
material into the chipper chute or shredder hopper,
use a small diameter stick, NOT YOUR HANDS.
• Your chipper-shredder is a powerful tool, not a
plaything. Therefore, exercise extreme caution at all
times. Your unit has been designed to perform two
jobs; to chip and shred vegetation found in a normal
yard. Do not use it for any other purpose.
• If it is necessary for any reason to unclog the feed
intake or discharge openings or to inspect or repair
any part of the machine where a moving part can
come in contact with your body or clothing, stop the
machine, allow it to cool, disconnect the spark plug
wire from the spark plug and move it away from the
spark plug before attempting to unclog, inspect or
repair.
• Never allow children under age 16 to operate the unit.
Children 16 years and older should only operate the
unit under close parental supervision. Only
responsible individuals who are familiar with these
rules of safe operation should be allowed to use your
unit.
• Do not operate unit while under the influence of
alcohol or drugs.
• Keep the area of operation clear of all persons,
particularly small children and pets. Stop the engine
when they are in the vicinity of the unit. Keep work
area clean and clear of branches or obstacles which
could cause you to stumble or fall.
• The machine should only be operated on a level
surface. Never operate your unit on a slippery, wet,
muddy or icy surface. Keep your work area clean and
clear of branches or obstacles which could cause you
to stumble and fall. Do not overreach. Maintaining
proper footing and balance is essential to preventing
accidents.
• When feeding material into this equipment, be
extremely careful that pieces of metal, rocks, bottles,
cans or other foreign objects are not included.
Personal injury or damage to the machine could
result.
• Do not allow an accumulation of processed material
to build up in the discharge area as this will prevent
proper discharge and can result in kickback from the
chipper chute.
• Wear sturdy, rough-soled work shoes and close fitting
slacks and shirt. Shirt and slacks that cover the arms
and legs and steel-toed shoes are recommended. Do
not wear loose fitting clothes or jewelry and secure
hair so it is above shoulder length. They can be
caught in moving parts. Never operate a unit in bare
feet, sandals or sneakers. Wear gloves when feeding
material in the chipper chute or shredder hopper.
• Keep your face and body back from chipper chute to
avoid accidental bounce back of any material.
• Do not transport machine while engine is running.
• If the cutting mechanism strikes a foreign object or if
your machine should start making an unusual noise
or vibration, immediately stop the engine and allow
the machine to come to a complete stop. Disconnect
the spark plug wire and move it away from the spark
plug. Take the following steps.
• Always wear safety glasses or safety goggles, during
operation and while performing an adjustment or
3
•
•
•
Inspect for damage.
3. SERVICE
Repair or replace any damaged parts.
• Use extreme care in handling gasoline and other
fuels. They are extremely flammable and the
vapors are explosive.
Check for any loose parts and tighten to
assure continued safe operation.
• Store fuel and oil in approved containers, away
from heat and open flame, and out of the reach of
children. Check and add fuel before starting the
engine. Never remove gas cap or add fuel while the
engine is running. Allow engine to cool at least two
minutes before refueling.
• Never attempt to attach or remove catcher bag
when engine is running. Shut the engine off and
wait for the impeller to come to a complete stop.
The impeller continues to rotate for a few seconds
after the engine is shut off. Never place any part of
the body in the impeller area until you are sure the
impeller has stopped rotating.
• Replace gasoline cap securely and wipe off any
spilled gasoline before starting the engine as it may
cause a fire or explosion.
• Muffler and engine become hot and can cause a
burn. Do not touch.
• Extinguish all cigarettes, cigars, pipes and other
sources of ignition.
• Do not allow leaves or other debris to build up on
engine's muffler. The debris could ignite and cause
a fire.
• Never refuel unit indoors because flammable
vapors will accumulate in the area.
• Do not attempt to shred or chip material larger than
specified in this manual. Personal injury or damage
to the machine could result.
• Never store the machine or fuel container inside
where there is an open flame or spark such as a
gas hot water heater, space heater, clothes dryer
or furnace.
• Do not operate engine if air cleaner or cover over
carburetor air intake is removed, except for
adjustment. Removal of such parts could create a
fire hazard.
• Never run your machine in an enclosed area as the
exhaust from the engine contains carbon
monoxide, which is an odorless, tasteless and
deadly poisonous gas.
• Only use accessories approved for this machine by
the manufacturer. Read, understand, and follow all
instructions provided with the approved accessory.
• To reduce fire hazard, keep engine and muffler free
of leaves, grass, and other debris build-up. Clean
up fuel and oil spillage. Allow unit to cool at least 5
minutes before storing.
• If situations occur which are not covered by this
manual, use care and good judgment. Contact your
dealer for assistance.
• Before cleaning, repairing, or inspecting, make
certain the impeller and all moving parts have
stopped. Disconnect the spark plug wire and keep
wire away from spark plug to prevent accidental
starting. Do not use flammable solutions to clean
air filter.
• Keep discharge chute deflector, chipper chute
door, and all other guards and safety devices in
place and operating properly.
• Only operate unit in good daylight. Do not operate
unit at night or in dark areas where your vision may
be impaired.
• Check the blade and engine mounting screws at
frequent intervals for proper tightness. Also visually
inspect blades for wear and/or damage (e.g., bent,
cracked). Replace with blades which meet original
equipment specifications.
2. CHILDREN
Tragic accidents can occur if the operator is not alert to the
presence of small children. Children are often attracted to
the chipper-shredder and the chipping and shredding
activity. Never assume that children will remain where you
last saw them.
• Keep all nuts, bolts, and screws tight to be sure the
equipment is in safe working condition.
• Keep children out of the work area and under the
watchful eye of a responsible adult other than the
operator.
• Never tamper with safety devices. Check their
proper operation regularly.
• After striking a foreign object, immediately stop the
engine, disconnect the spark plug wire from the
spark plug, and thoroughly inspect the unit for any
damage. Repair damage before starting and
operating unit.
• Be alert and turn the unit off if a child enters the
area.
• Never allow children under the age of 16 to operate
the chipper-shredder.
• Do not alter or tamper with the engine's governor
setting. The governor controls the maximum safe
operating speed of the engine. Overspeeding the
engine is dangerous and will cause damage to the
engine and to other moving parts of the machine.
WARNING - YOUR RESPONSIBILITY: Restrict the use of this power machine to persons who
read, understand and follow the warnings and instructions in this manual and on the machine.
4
DANGER
TO AVOID SERIOUS INJURY:
•
•
DO NOT DEPOSIT BRANCHES LARGER THAN 1/2 INCH DIAMETER INTO THIS HOPPER.
WEAR APPROVED SAFETY GLASSES, GLOVES AND EAR PROTECTION.
AVOID LOOSE FITTING CLOTHING.
•
•RKeeaedpthheanOdws,nfeere’st,Mfaacneuaalnbdecfolortehisntagrotinugt oafnsdhuresdindgerthhisopcpheiprpinelre/stharnedddcehri.pper chute inlet.
• Keep hands, feet, face and clothing away from discharge area and moving parts.
• Keep hands and feet out of discharge opening when chipper/shredder is running. The
rotating cutting blades inside opening will cause serious personal injury.
• Do •noKtetreapnsbpyosrtat nudneitrws,itchheilndgreinne, arunndnpinegts. away from operating and discharge
• If chipper/shredder jams or becomes clogged, shut engine off right away and wait for
all moving parts to come to a complete stop. Disconnect the spark plug wire and prevent
it from touching the sparkplug.Useonlyalongwoodenstick(orlong-handledshovel)to
clear away discharged materials or blockages.
•Keepallshieldsandguardsinplaceandsecurelyattached.
• DO NOT use hands or feet to clear material from the discharge area or discharge opening.
•DONOTinstallparts,orremove,adjust,orservicethedischargescreenoranyotherpartwhile
thechipper/shredderisrunning.DONOToperatethechipper/shredderonunevenground,orona
paved,gravel, orhardsurface.DONOTrunengineinanenclosedarea-exhaustgascontains
poisonous carbon monoxide fumes.
WA R N I N G
TO AVOID A FIRE HAZARD, KEEP LEAVES, GRASS, AND OTHER
STIBLE
COMBUSTIBLE
MATERIALS AWAY FROM HOT ENGINE AND MUFFLER.
WARNING: DO NOT OPERATE
THIS MACHINE UNLESS THE
CHUTE DEFLECTOR HAS BEEN
PROPERLY INSTALLED AND IS
SECURED WITH THE HAND
KNOBS.
DANGER
!
ROTATING CUTTING BLADES.
KEEP HANDS AND FEET OUT
OF OPENING WHILE MACHINE
IS RUNNING.
Figure 2 Safety labels found on your unit
5
SECTION 4: SET-UP INSTRUCTIONS
2. Remove six hex nuts (A) and six washers (B)
from the weld studs on the flail housing. Leave
the support plate in place on the weld studs. See
Figure 4.
IMPORTANT: After assembly, service engine
with gasoline, and check oil level as instructed in the
separate engine manual packed with your unit.
NOTE: All references to right or left side of the
snow thrower are determined from behind the unit in
the operating position.
Flail Housing
UNPACKING
Weld Stud
Washer (B)
1. Remove staples, break glue on the top flaps, or
cut tape at carton end and peel along top flap to
open carton.
Hex Nut (A)
Hopper
2. Remove any loose parts included with unit (i.e.,
Assembly
operator’s manual, etc.)
3. Cut corners and lay end of carton down flat.
4. Remove packing material.
Support Plate
5. Roll unit out of carton. Check carton thoroughly
for loose parts.
Figure 4
TOOLS REQUIRED FOR ASSEMBLY
3. Place hopper assembly into position in front of
flail housing. Align holes in hopper assembly
collar with weld studs on flail housing.
• Two Adjustable Wrenches
LOOSE PARTS IN CARTON
4. Slide hopper assembly onto weld studs.
5. Replace the washers (B) and the hex nuts (A).
6. Tighten the hex nuts (A).
A
B
C
D
Hopper Assembly
Discharge Chute
Chipper Chute (463 or 465)
Bag
7. Lift hopper until it clicks into the raised position.
8. Remove wing knobs (C) from each side of the
discharge chute opening on the chipper
shredder. See Figure 5.
ATTACHING THE HOPPER ASSEMBLY
AND DISCHARGE CHUTE
All Models
Hex Lock Nut (D)
1. Pull the spark plug wire off of the spark plug.
Hex Bolt (F)
See Figure 3.
Spacers (E)
Spark Plug Wire
Hinge
Wing Knob (C)
Figure 3
Discharge
Chute
Figure 5
6
9. Use wrenches to remove hex lock nut (D).
Remove two spacers (E), and hex bolt (F) from
top of the housing assembly. For easy
assembly, do not remove the second spacer
from the hex bolt. See Figure 5.
4. Replace the three cupped washers (cupped side
against the chipper chute) and hex nuts that you
removed in step 1. Do not tighten the nuts at this
time. Make sure to place the cupped side of the
washer against the chipper chute.
5. Your unit is shipped with one end of the brace
already secured to the lower frame. Loosen the
bolts securing the brace to the frame.
10. Place the discharge chute in position on the
discharge opening. Insert hex bolt (F) and
spacer (E) through hinge on discharge chute
and housing (spacer fits inside of hinge).
6. Align the holes on the chute with the holes on
the brace.
11. Place second spacer (E) over hex bolt (F) inside
the other half of the hinge. Secure with hex lock
nut (D). Tighten securely.
7. Attach brace to chipper chute with the hardware
removed earlier from the brace. Tighten
securely. See Figure 6.
12. Secure both sides of discharge chute to flail
housing using wing knobs (C). Tighten wing
knobs.
8. Tighten the bolts securing the brace to the
frame.
9. Tighten the three nuts on the weld studs holding
the chipper chute to the flail housing.
ATTACHING THE CHIPPER CHUTE
(Model 463 or 465 chipper shredders)
ATTACHING THE BAG
All Models
1. To attach the bag, place the opening of the bag
over the chute deflector so it completely covers
the chute deflector. See Figure 7.
Chipper
Chute
2. Depress the plunger on the drawstring, and pull
on the drawstring until the bag is tight around the
chute opening. Release plunger to lock it into
position. See Figure 7.
Weld Stud (A)
Weld Stud (A)
Hex Bolt
Flat Washer
Hex Nut
Frame
Brace
Weld Stud (A)
Figure 6
1. Remove the three cupped washers and hex nuts
from the weld studs (A) beside the opening on
the left side of the housing. See Figure 6.
2. Remove the two hex bolts, lock nuts, and flat
washers from the two holes on the upper end of
the brace.
Figure 7
3. Place the chipper chute over the weld studs so
the slot on the chute is towards the bottom. Align
the three holes on the chute with the three weld
studs.
7
SECTION 5: CONTROLS
SECTION 6: OPERATION
STOPPING ENGINE
Move throttle control lever to STOP position.
Disconnect spark plug wire and move away from
spark plug to prevent accidental starting.
Release
Rod
WARNING: Before using your chipper-
shredder, again refer to the safety
practices of this manual. Always be
careful.
GASOLINE AND OIL FILL-UP
See engine manual included with your unit
Choke
Lever
• If the unit runs out of gas as it is shredding or
chipping, it may be necessary to unclog the
unit before it can be restarted. Refer to
Removing the Flail Screen in Maintenance
section.
Throttle
Control
Starter
Handle
WARNING: Always stop the engine and
disconnect the spark plug wire before
performing any maintenance or adjust-
ments.
Figure 8
Release Rod: Used to release the hopper when
raising or lowering. See Figure 8.
STARTING ENGINE
Choke Lever: Used to enrich the fuel mixture in
WARNING: Be sure no one other than
the operator is standing near the chipper-
shredder while starting or operating. Do
not operate this chipper-shredder unless
the chute deflector has been properly
installed and is secured with the hand
knobs.
the carburetor when starting a cold engine.
Starter Handle: Used to manually start the
engine.
Hopper Assembly: Allows leaves and small
branches up to 1/2” diameter to be fed into the
impeller for chipping and shredding. Lower the
hopper to collect raked material for shredding.
Throttle Control: Regulates speed of the
engine.
NOTE: To prevent the unit from sliding, place your
foot firmly against the wheel.
1. Attach spark plug wire and rubber boot to spark
plug.
Chipper Chute: Allows bulky vegetation like
stalks or heavy branches to be fed into the impeller
for chipping and shredding. Maximum diameter is 3”
on model 463 or 465 and 2” on model 462.
2. Move choke lever to CHOKE position (if
equipped).
3. If restarting a warm engine after a short
shutdown, move choke lever to No Choke
position.
Catcher Bag (not shown): Used to collect the
shredded material.
4. Grasp starter handle and pull rope out slowly
until engine reaches start of compression cycle
(rope will pull slightly harder at this point). Let
the rope rewind slowly.
8
5. Pull rope with a rapid full arm stroke. Let rope
return to starter slowly.
LOWERING THE HOPPER ASSEMBLY
1. To lower the hopper assembly, use one hand to
grasp the hand-hold at the top of the hopper
assembly and lift slightly.
6. When engine starts, move choke lever to half
choke position until engine runs smoothly and
then to No Choke position.
2. Pull out on the release rod, and lower the hopper
assembly to the ground.
7. If engine fails to start after three pulls, move
choke lever to No Choke position and pull starter
rope again.
NOTE: For best performance, it is important to
keep the shredding blade and the chipper blades
sharp. If the composition of the material being
discharged changes (becomes stringy, etc.) or if the
rate at which the material is discharged slows down
considerably, it is likely that the shredding blade and/
or chipper blades are dull and need to be sharpened
or replaced. Refer to Maintenance section.
8. If engine fires, but does not continue to run,
move choke lever to Full Choke position and pull
rope again.
9. Move choke lever to OFF position as engine
warms up.
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 falling into place, and should be
expected. In addition, the flails and fingers will be
noisy after the engine is started, until the impeller
reaches full speed.
IMPORTANT: There is a flail screen located
inside the housing in the discharge area. If the flail
screen becomes clogged, remove and clean as
instructed in the Maintenance section.
WARNING: The chipper-shredder dis-
charges materials with considerable
velocity. Keep away from the area around
the discharge chute. Always stop the
engine and disconnect spark plug wire
when removing or attaching the bag,
changing containers, or removing the
shredded material. Wear safety glasses
and gloves whenever using your chipper-
shredder.
USING YOUR CHIPPER-SHREDDER
WARNING: Do not attempt to shred or
chip any material other than vegetation
found in a normal yard (i.e., branches,
leaves, twigs, etc.).
• Leaves and small branches up to 1/2"
diameter (maximum) can be fed into the
hopper assembly when it is in the raised or
lowered position.
SECTION 7: MAINTENANCE
• For model 462, bulky material, such as stalks
or heavy branches, up to 2” in diameter
should be fed into the chipper chute.
GENERAL RECOMMENDATIONS
• Always observe safety rules when performing
any maintenance.
• For model 463 or 465, bulky material, such as
stalks or heavy branches, up to 3” in diameter
should be fed into the chipper chute.
• The warranty on this chipper shredder does
not cover items that have been subjected to
operator abuse or negligence. To receive full
value from the warranty, operator must
maintain the chipper shredder as instructed in
this manual.
WARNING: Do not put material larger
than is specified into the hopper, and/or
into the chipper chute. Personal injury or
damage to the machine could result.
• Periodically check all fasteners and make sure
these are tight.
• If it becomes necessary to push material into
the chipper-shredder, use a small diameter
stick -- NOT YOUR HANDS. The stick should
be small enough that it will be ground up if it
gets into the impeller assembly.
WARNING: Always stop the engine and
disconnect the spark plug wire before
performing any maintenance or adjust-
ments. Never remove discharge chute
until the engine has completely stopped.
9
WARNING: Temperature of muffler and
AIR CLEANER
nearby areas may exceed 150o F(65oC).
The air cleaner prevents damaging dirt, dust, etc.,
from entering the carburetor and being forced into
the engine and is important to engine life and
performance. Never run the engine without air
cleaner completely assembled.
Avoid these areas.
LUBRICATION
• Service the air cleaner according to the
separate engine owner’s guide supplied with
your chipper shredder.
Lubricate the pivot points on the release rod bracket,
hopper assembly, and chute deflector once a
season using a light oil.
CARBURETOR
CLEANING
WARNING: If any adjustments are made
to the engine while the engine is running (e.g.
carburetor), keep clear of all moving parts.
Be careful of heated surfaces and muffler.
• Clean engine periodically. Remove dirt and
debris with a cloth or brush.
• Frequently remove leaves, dirt and debris
from cooling fins, air intake screen and levers
and linkage. This will help ensure adequate
cooling and correct engine speed.
• Service the carburetor according to the
separate engine owner’s guide supplied with
your chipper shredder.
• Clean the chipper shredder by running water
from a hose through the hopper assembly and
chipper chute with the engine running. Allow
the chipper-shredder to dry thoroughly.
ENGINE SPEED
NOTE: Cleaning with a forceful spray of water is
not recommended as water could contaminate the
fuel system.
• The engine speed on your chipper-shredder
has been set at the factory. Do not attempt to
increase engine speed or it may result in
personal injury. If you believe the engine is
running too fast or too slow, take your chipper-
shredder to the nearest service center for
repair and adjustment.
• Wash the bag periodically with water. Allow to
dry thoroughly in the shade. Do not use heat.
ENGINE OIL
The engine oil is the most important “insurance
policy” your new chipper shredder has. It protects it
from excess wear and tear and helps the cooling
process. It is important that you maintain the engine
oil at the proper level and that it is changed on a
regular basis.
SPARK PLUG
• Service the spark plug according to the
separate engine owner’s guide supplied with
your chipper shredder.
REMOVING THE FLAIL SCREEN
• Service the engine oil according to the
separate engine owner’s guide supplied with
your chipper shredder.
If the discharge area becomes clogged, remove the
flail screen and clean area as follows: See Figure 9.
1. Stop engine, make certain the chipper-shredder
has come to a complete stop and disconnect
spark plug wire from the spark plug before
unclogging the chute.
To Drain Oil
Drain oil while engine is warm. Follow the
instructions given below.
• Remove oil drain plug or cap. The plug or cap
is located in front of the engine or under the
frame. Catch oil in a suitable container.
2. Remove the two hand knobs on each side of the
discharge chute (also called the chute deflector).
3. Lift the discharge chute up, and keep it out of
the way.
• When engine is drained of all oil, replace drain
plug or cap securely.
4. Remove two hairpin clips from the clevis pins
which extend through the housing. Remove the
clevis pins.
• Refill with fresh oil.
• Replace dipstick.
5. Pull the flail screen from inside the housing.
6. Clean the screen by scraping or washing with
water.
10
7. Reinstall the screen.
8. Put the discharge chute back to its original
position and tighten the hand knobs.
Slot
NOTE: Be certain to reassemble the flail screen
with the curved side down.
Blade
Clevis
Pin
Hex Nuts
Washers
Discharge
Chute
Figure 10
6. Remove the other blade in the same manner.
7. Replace or sharpen blades.
Flail
Screen
Chipper Chute
8. If sharpening, make certain to remove an equal
amount from each blade.
Hairpin
Clip
9. Reassemble in reverse order. Make certain
blades are reassembled with the sharp edge
facing the direction shown in Figure 10 (sharp
edge is assembled toward the slotted opening at
the bottom).
Hand Knobs
Figure 9
SHARPENING OR REPLACING THE
CHIPPER BLADES
10. Torque bolts and nuts to 250-350 inch-pounds.
All models
SHARPENING OR REPLACING THE
SHREDDER BLADE
1. Disconnect spark plug wire and move it away
from spark plug.
The shredder blade may be removed for sharpening
or replacement as follows. See Figure 11.
2. Remove the flail screen as instructed in previous
section.
1. Disconnect spark plug wire and move it away
from spark plug.
3. Using a wrench, remove the chipper chute by
removing three hex nuts and washers.
2. Lower the hopper assembly. Block up the
housing.
Model 463 or 465
4. Use an adjustable wrench, to remove the brace
holding the chipper chute to the frame by
removing the hex bolts.
Allen Screws
Weld
Bolt
All models
5. Rotate the impeller assembly by hand until you
locate one of the two chipper blades in the
chipper chute opening. Remove the blade, using
a 3/16" allen wrench on the outside of the blade
and an adjustable wrench on the impeller
assembly (inside the housing). See Figure 10.
Pipe
Blade
Torque Wrench
Figure 11
11
3. Remove the six hex lock nuts and flat washers
from the housing weld bolts using a 1/2" wrench.
Separate the chipper-shredder into two halves.
SECTION 8: OFF-SEASON
STORAGE
Prepare your chipper-shredder for storage at the end
of the season or if the unit will not be used for 30
days or more. The following steps should be taken
to prepare your shredder for storage.
4. Remove the support plate.
NOTE: When reassembling, make certain the
embossed tab faces inward towards the impeller.
5. Remove the two hand knobs and cupped
washers which secure the discharge chute.
Raise the discharge chute.
1. Clean and lubricate the shredder thoroughly.
2. Refer to engine manual for correct engine
storage instructions.
6. 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 (2 x 4) into the chute opening.
3. If storing an unventilated or metal storage shed,
coat metal parts with a light oil or silicone to
prevent rust.
4. Store in a cool dry place. Do not store next to
corrosive materials such as fertilizer.
7. Remove the two outside screws on the blade,
using a 3/16" allen wrench and a 1/2" wrench.
8. Remove the blade by removing the center bolt,
lock washer and flat washer.
WARNING: Use caution when removing
the blade to avoid contacting the weld bolts
on the housing.
9. 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.
10. An unbalanced blade will cause excessive
vibration when rotating at high speeds and may
cause damage to the unit. The blade can be tested
for balance by balancing it on a round shaft
screwdriver or nail. Remove metal from the heavy
side until it is balanced evenly. See Figure 12.
11. When reassembling the blade, tighten center
bolt to between 550 and 700 inch-pounds and
the two outer bolts to between 250 and 350
inch-pounds, or lacking torque wrench, tighten
securely. See Figure 11.
1. Insert screw driver through hole
2. Blade should be parallel to ground
Screw
Blade
Driver
Ground
Figure 12
12
SECTION 9: TROUBLE SHOOTING GUIDE
Trouble
Possible Cause(s)
Corrective Action
Engine fails to start
Dirty air cleaner.
Refer to the engine manual packed with your unit.
Move switch to ON position.
Connect wire to spark plug.
Obstruction lodged in impeller. Stop immediately and
disconnect spark plug wire. Remove lodged object.
Fill tank with clean, fresh gasoline. Fuel will not last
over thirty days unless a fuel stabilizer is used.
Choke not in ON position.
Spark plug wire disconnected.
Cannot pull recoil cord.
Fuel tank empty, or stale fuel.
Fuel shut-off valve closed (if so Open fuel shut-off valve.
equipped).
Faulty spark plug.
Clean, adjust gap or replace.
Loss of power; operation
erratic
Spark plug wire loose.
Unit running on CHOKE.
Blocked fuel line or stale fuel.
Connect and tighten spark plug wire.
Move choke lever to OFF position.
Clean fuel line; fill tank with clean, fresh gasoline. Fuel
will not last over thirty days unless a fuel stabilizer is
used.
Water or dirt in fuel system.
Disconnect fuel line at carburetor to drain fuel tank.
Refill with fresh fuel.
Carburetor out of adjustment.
Dirty air cleaner.
Carburetor not adjusted prop-
erly.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Refer to the engine manual packed with your unit.
Fill crankcase with proper oil.
Engine overheats
Dirty air cleaner.
Engine oil level low.
Loose parts or damaged
impeller.
Too much vibration
Stop engine immediately and disconnect spark plug
wire. Have unit serviced by an authorized service
dealer.
Unit does not discharge
Discharge chute clogged.
Stop engine immediately and disconnect spark plug
wire. Clean flail screen and inside of housing. See
Maintenance section of this manual.
Always run engine at full throttle
Stop engine immediately and disconnect spark plug
wire. Remove lodged object.
Low engine RPM.
Foreign object lodged in
impeller.
Rate of discharge slows
Low engine RPM.
Always run engine at full throttle
considerably or composition Shredding blade and/or chipper Replace shredding and chipper blades or see your
of discharged material
changes
blades dull.
authorized service dealer.
Note: For repairs beyond the minor adjustments above, contact your local authorized service dealer.
Tow Hitch Kit (Optional)
Model 290-010-000
REF.
NO.
1
2
3
4
5
6
7
PART
NO
DESCRIPTION
Tow Bar Tongue
Tow Bar Base
Hex Cap Screw 3/8-16
Clevis Pin
Clevis Pin
Hex Nut 3/8-16
Spring Pin
Flat Washer .411 x 1.25 x 1.00
Lock Washer 3/8
681-0133
681-0134
710-3001
711-0299
711-0835
712-0798
732-0194
736-0133
736-0169
8
9
13
Model Series 462 thru 465
1
3
2
4
5
14
7
8
9
5
6
15
10
10
11
17
12
16
15
28
18
19
22
23
13
10
24
27
26
25
32
21
45
20
42
44
29
40
31
41
39
23
53
46
47
76
24
29
23
54
49
34
32
39
52
33
48
23
36
35
26
30
41
37
50
51
44
43
52
38
56
30
61
63
65
66
64
55
62
57
69
58
60
70
71
69
58
69
68
51
67
68
72
73
69
69
71
59
69
68
69
72
68
71
75
74
70
68
69
14
Model Series 462 thru 465
REF.
NO.
1
PART
NO.
REF.
NO.
PART
NO.
DESCRIPTION
Chipper Chute
DESCRIPTION
Lock Washer 5/16
Flail Blade
Spiral Pin
Spring Pin
Hex Cap Screw 3/8-24 x 2.25
Lock Washer 3/8
Flat Washer 3/8 x 1.25
Push Cap
Wheel Assy Comp 10.0 x 2.5
Wheel Assy Comp 10.0 x 4 x 4
Rim Assy Comp.
Tire Only
Air Valve
Grease Fitting
Front Housing Asm
Hex Cap Screw 1/4-20 x 3.75
Rim
Shredder Axle 21.2” (462 or 463)
Shredder Axle 22.5” (465)
Spacer
731-1899
728-0175
735-0249
781-0633
710-0751
681-0068
736-0173
710-0106
749-1004
44 736-0119
45 719-0329
46 715-0166
47 781-0735
48 710-1254
49 736-0217
50 736-0247
51 726-0214
52 734-1600
734-1597
2
3
4
5
6
7
8
9
Pop Rivet
Chute Flap
Flat Strip
Hex Cap Screw 1/4-20 x .620
Chipper Chute Am
Flat Washer.28 ID x .74 OD
Hex Cap Screw 1/4-20 x 1.25
Chute Support
Hex Flange Nut 1/4-20
Hex Cap Screw 1/4-20 x 1.25
Hex Nut 5/16-18
10 712-3027
11 710-0106
12 712-3010
13 736-0242
14 681-0095
15 712-3010
16 736-0242
17 681-0094
18 720-0170
19 714-0149B
20 781-0457
21 711-0835
22 712-3027
23 712-3004A
24 750-0793
25 681-0117
26 726-0211
27 781-0510B
28 710-0805
29 736-0170
30 710-3008
31 710-0157
32 736-0119
33 736-0329
34 710-0599
35 712-3004A
36 710-1502
37 751-0646
38 751-0447
39 710-1054
40 781-0490
41 712-0411
42 681-0030
43 742-0571
734-1455A
734-1598
Bell Washer.340 ID x .872 OD
Complete Chipper Chute
Hex Nut 5/16-18
Bell Washer .340 ID x .872 OD
Chute Asm
734-0255
737-0211A
53 681-0004A
54 710-0825
55 734-1455A
56 738-0814
738-0813
Knob 5/16-18
Cotter Pin
Shredder Screen
Clevis Pin
57 750-0786
58 741-0487A
59 781-0515
60 781-0574
61 681-0104
62 750-0785
63 732-0306
64 736-0117
65 714-0104
66 736-0264
67 711-1128
68 736-0264
69 712-0429
70 710-0376
71 736-0362
72 731-1710
73 681-0123
74 731-1707
75 710-3008
76 711-0833B
77 737-0195
723-0400
Flange Bearing
Support Bracket
Shredder Plate
Bracket Asm
Hex Lock Nut 1/4-20
Flange Hex Lock Nut 5/16-18
Spacer
Rear Housing Asm
U Nut 5/16-18
Spacer
Compression Spring
Flat Washer 3/8 x .620 x .033
Cotter Pin
Flat Washer
Release Rod
Flat Washer .330 ID x .630 OD
Hex Lock Nut 5/16-18
Hex Cap Screw 5/16-18 x 1.0
Flat Washer .320 ID x 1.25 OD
Collar-Hopper
Hopper Bracket Asm
Hopper
Hex Cap Screw 5/16-18 x .75
Clevis Pin
Shredder Frame
Hex Cap Screw 5/16-18 x 1.5
Bell Washer 5/16 x 1.0
Hex Cap Screw 5/16-18 x .75
Hex Cap Screw 5/16-24 x .75
Lock Washer 5/16
Lock Washer 1/4
Hex Washer Screw 1/4-20 x .5
Hex Lock Nut 5/16-18
Hex Washer Screw
Muffler Bracket Guard
Deflector
Flat Screw 5/16-24 x 1.0
Chipper Blade
Hex Lock Nut 5/16-24
Impeller Asm
Oil Drain Elbow (Not Shown)
Safety Glasses (Not Shown)
Bag (Not Shown)
764-0199A
Shredder Blade
15
MANUFACTURER’S LIMITED WARRANTY FOR:
b. Routine maintenance items such as lubricants, filters,
blade sharpening and tune-ups, or adjustments such
as brake adjustments, clutch adjustments or deck
adjustments; and normal deterioration of the exterior
finish due to use or exposure.
The limited warranty set forth below is given by MTD
PRODUCTS INC (“MTD”) with respect to new merchandise
purchased and used in the United States, its possessions
and territories.
c. Log splitter pumps, valves and cylinders have a sepa-
rate one year warranty.
MTD warrants this product against defects in material and
workmanship 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
material or workmanship. This limited warranty 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, com-
mercial 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 accessory or attachment not
approved by MTD Products Inc. for use with the product(s)
covered by this manual will void your warranty as to any
resulting damages.
d. MTD does not extend any warranty for products sold
or exported outside of the United States of America,
its possessions and territories, except those sold
through MTD’s authorized channels of export distribu-
tion.
No implied warranty, including any implied warranty of
merchantability or 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 or guaranty, 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 War-
ranty, the exclusive remedy is repair or replacement of
the product as set forth above. (Some states do not
allow limitations on how long an implied warranty lasts, so
the above limitation may not apply to you.)
Normal wear parts or components thereof are subject to
separate terms as follows: All normal wear part or compo-
nent failures will be covered on the product for a period of
90 days regardless of cause. After 90 days, but within the
two year period, normal wear part failures will be covered
ONLY IF caused by defects in material or workmanship of
OTHER component parts. Normal wear parts and compo-
nents include, but are not limited to, belts, blades, blade
adapters, grass bags, rider deck wheels, seats, snow
thrower skid shoes, shave plates and tires. Batteries are
covered by a 90-day limited replacement warranty.
The provisions as set forth in this Warranty provide the
sole and exclusive remedy arising from the sales. MTD
shall not be liable for incidental or consequential loss
or damages including, without limitation, expenses
incurred for substitute or replacement lawn care ser-
vices, for transportation or for related expenses, or for
rental expenses to temporarily replace a warranted
product. (Some states do not allow the exclusion or limita-
tion of incidental or consequential damages, so the above
exclusion or limitation may not apply to you.)
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, please check for a listing in the Yellow Pages or
contact the Customer Service Department of MTD PROD-
UCTS INC by calling 1-800-800-7310 or writing to P.O. Box
368022, Cleveland, Ohio 44136-9722. No product returned
directly to the factory will be accepted unless prior written
permission has been extended by the Customer Service
Department of MTD PRODUCTS INC.
In no event shall recovery of any kind be greater than the
amount of the purchase price of the product sold. Alteration
of the safety features of the product shall void this War-
ranty. 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 use or misuse or inability to use
the product.
This limited warranty does not provide coverage in the
This limited warranty shall not extend to anyone other than
the original purchaser, original lessee or the person for
whom it was purchased as a gift.
following cases:
a. The engine or component parts thereof. These items
carry a separate manufacturer’s warranty. Please refer
to the applicable manufacturer’s warranty on these
items.
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.
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