MTD 651C User Manual

OWNEirSGUM

• ASSEMBLY • OPERATION • MAINTENANCE •

5 and 8 H.P.

SHREDDERS

Model Nos.

645C thru 651C

(Model 645C Shown)

Important:
Read Safety Rules
and Instructions Carefully

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

Made ^
In
AMERICA

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.

IMPORTANT!

Record the exact Model No. and Serial No.
which appear on the frame of your unit in the
space below. You must have these numbers,
along with the date of purchase, in order to

receive warranty or service.

MODEL NO.

24D-6[I]c1

SERIAL NO.

FORM NO. 770-8583L

IMPORTANT

THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSON
AL SAFETY AND/OR PROPERTY OF YOURSELF AND OTHERS. READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL

▲

BEFORE ATTEMPTING TO OPERATE YOUR :HIPPER-SHREDDER. FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY
RESULT IN PERSONAL INJURY. WHEN YOU SEE THIS SYMBOL: ^HEED ITS WARNING.

SAFE OPERATION PRACTICES

- As with any type of power equipment, careiessness or error on the part of the operator can resuit in

Your chipper-shredder was built to be operated according to the ruies for safe operation in this manual.

DANGER: serious injury. This chipper-shredder is capabie of amputating fingers and hands and throwing objects.

A

i. GENERAL OPERATION

^ 1. Read this owner’s guide carefully in Its entirety befóte attempt

ing to assemble this machine. Read, understand, ami follow all
instructions on the machine and in the manual(s) befare opera
tion. Be completely familiar with the controls and he proper
use of the machine before operating it. Keep this n anual in a
safe place for future and regular reference and fo' ordering
replacement parts.

2. Your chipper-shredder is a powerful tool, not a alaything.
Therefore, exercise extreme caution at ali times. Your unit has
been designed to perform two jobs; to chip and shrîd vegeta

tion found in a normal yard. Do not use it for any other pur

pose.

3. Never allow children underage 16 to operate the unit. Children
16 years and older should only operate the unit under close
parental supervision. Only responsible individual ; who are

familiar with these rules of safe operation should be allowed to

use your unit.

4. 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 o branches
or obstacles which could cause you to stumble or fal.

5. When feeding material into this equipment, be extre nely care

ful that pieces of metal, rocks, bottles, cans or otter foreign
objects are not included. Personal injury or dami.ge to the
machine could result.

6. Always wear safety glasses or safety goggles, during operation

and while performing an adjustment or repair, to prDtect eyes
from foreign objects that may be thrown from the machine.

7. Wear sturdy, rough-soled work shoes and close fitfing 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 vrhen feed
ing material in the chipper chute or shredder hopper.

8. Never place your hands, feet, or any part of your body into the

shredder hopper, chipper chute, discharge openin j, or near
any moving part while the engine is running. Keep c ear 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 HANOS.

9. If It Is necessary for any reason to unclog the feec 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 o ■ repair.

10. Do not operate unit while under the influence of alcohol or
drugs.

11. The machine should only be operated on a level surfé ce. Never
operate your unit on a slippery, wet, muddy or icr 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 t) prevent
ing accidents.

Faiiure to observe the foii >wing safety instructions couid resuit in serious injury or death.

12.

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 kick-back from the chipper chute.

13.

Keep your face and body back from chipper chute to avoid
accidental bounce back of any material.

14.

Do not transport machine while engine is running.
If the cutting mechanism strikes a foreign object or if your

15.
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.

• Inspect for damage.

• Repair or replace any damaged parts.

• Check for any loose parts and tighten to assure continued
safe operation.

16.

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 tor 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.

Muffler arid engine become hot and can cause a burn. Do not

17.
touch.

18.

Do not allow leaves or other debris to build-up on engine’s
muffler. The debris could Ignite and cause afire.
Do not attempt to shred or chip material larger than specified

19.
in this manual. Personal injury or damage to the machine
could result.
Do not operate engine if air cleaner or cover over carburetor

20.

air-intake is removed, except for adjustment. Removal of such
parts could create a fire hazard.

21

.

Only use accessories approved for this machine by the manu
facturer. Read, understand, and follow all instructions provid
ed with the approved accessory.

If situations occur which are not covered by this manual, use

22.

care and good judgment. Contact your dealer for assistance.
Keep discharge chute deflector, chipper chute door, and all

23.
other guards and safety devices in place and operating proper

ly-

24.

Only operate unit in good daylight. Do not operate unit at night
or in dark areas where your vision may be impaired.

II. CHILDREN

^Tragic accidents can occur if the operator is not alert to the pres

ence of small children. Children are often attracted to the chipper­shredder and the chipping and shredding activity. Never assume
that children will remain where you last saw them.

1. Keep children out of the work area and under the watchful eye
of a responsible adult other than the operator.

2. Be alert and turn the unit off if a child enters the area.

3. Never allow children under the age of 16 to operate the chip
per-shredder.

III. SERVICE

A.

1. Use extreme care in handling gasoline and other fuels. They
are extremely flammable and the vapors are explosive.

a. 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.

b. Replace gasoline cap securely and wipe off any spilled

gasoline before starting the engine as it may cause a fire
or explosion.

c. Extinguish all cigarettes, cigars, pipes and other sources

of ignition.

d. Never refuel unit indoors because flammable vapors will

accumulate in the area.

e. 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.

2. Never run your machine in an enclosed area as the exhaust
from the engine contains carbon monoxide, which is an odor

less, tasteless and deadly poisonous gas.

3. 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.

4. 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.

5. Check the blade and engine mounting screws at frequent inter
vals for proper tightness. Also visually inspect blades for wear
and/or damage (e.g., bent, cracked). Replace with blades
which meet original equipment specifications.

6. Keep all nuts, bolts, and screws tight to be sure the equipment
is in safe working condition.

7. Never tamper with safety devices. Check their proper opera
tion regularly.

8. After striking a foreign object, immediately stop the engine,
disconnect the spark plug wire from the spark plug, and thor
oughly inspect the unit for any damage. Repair damage before
starting and operating unit.

9. Do not alter or tamper with the engine’s governor setting. The
governor controls the maximum safe operating speed of the
engine. Over-speeding the engine is dangerous and will cause
damage to the engine and to other moving parts of the
machine.

OWNER’S
MANUAL

SAFETY LABEL

A

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.

WARNING — YOUR RESPONSIBILITY

ASSEMEILY INSTRUCTIONS

AHACHING THE UPPER

GUIDE ASSEMBLY

Hex Lc ck

Nut5/1(i-18

Hex Bolt

5/16-18 X 8-3/8" Long

Flat

Was her

5/16' I.D.

Thread

IMPORTANT: This unit is shipped WiTHOUT
GASOLiNE or OiL. After assembly, see separate
engine manual for proper fuel and engine oii rec
ommendations.

NOTE: To determine right and left hand sides of your

shredder, stand behind the unit with the engine the
farthest away from you. See figure 6.

Your shredder has been completely assembled at the
factory, except for the hopper assembly (hopper hood
and upper guide extension have been sub-assem
bled), upper guide assembly, chute deflector and the
catcher bag. The hardware pack and a pair of safety
glasses are also included in the carton.

The hardware pack contains the parts shown in figure
1 (shown full size).

TO REMOVE SHREDDER FROM CARTON

1. Remove staples, break glue on top flaps, or cut
tape at carton end and peel along top flap to
open carton.

2. Remove loose parts if included with unit (i.e.,
owner’s manual, etc.).

3. Cut along dotted lines and iay carton down flat.

4. Remove packing material.

5. Roll or slide unit out of carton. Check carton
thoroughly for loose parts.

B AHACHING THE HOPPIER ASSEMBLY

Truss Machine

Screws 1/4-20 x 1/2"-

Long

Hex Lock Nuts

1/4-20 Thread

TOOLS REQUIRED FOR ASSEMBLY

(1) Phillips Screwdriver

(2) 1/2" Wrenches (one must be a socket wrench)

(2) 7/16" Wrenches or Adjustable Wrenches

FIGURE 1.