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'N
OWNEirS GUIDE
• ASSEMBLY • OPERATION • MAINTENANCE •
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.
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Made ^
in
AMERICA
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.
FORM NO. 770-8581J
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A
Sy^FETY RULES
WARNING: TO REDUCE THE POTENTIAL FOR ANY INJURY, COMPLY WITH THE FOLLOWING
SAFETY INSTRUCTIONS. FAILURE TO COMPLY WITH THE INSTRUCTIONS MAY RESULT IN
PERSONAL INJURY.
TRAINING
• Read this owner’s manual carefully in its entirety before
attempting to assemble or operate this machine Be com
pletely familiar with the controls and the proper use of
this machine before operating it. Keep this manual in a
safe place for future and regular reference and for order
ing replacement parts.
• Children must never be allowed to operate this equip
ment.
• No one should operate this unit while intoxicated or while
taking medication that impairs the senses or rea ctions.
• This equipment should never be operated in tlie vicinity
of children, pets or other persons.
• Never run your machine in an enclosed art ¡a as the
exhaust from the engine contains carbon monox de, which
is an odorless, tasteless and deadly poisonous g as.
• Never place your hands or any part of your bod / or cloth
ing inside the feeding chamber, discharge chut a, or near
any moving part while the machine or engine is unning.
• If it is necessary for any reason to inspect or 'epair the
feeding chamber or any part of the machine wh€ re a mov
ing part can come in contact with your body o • clothing,
stop the machine, allow it to cool, disconnect the spark
plug wire from the spark plug and move it awa; ’ from the
spark plug before attempting such inspection or epair.
PREPARATION
• Wear safety glasses provided with your unit wh le operat
ing the shredder to prevent injury from any mate rial which
may be ejected out of the openings.
• Wear proper apparel. Avoid wearing loose fittini) clothing.
Wear gloves when handling material.
• HANDLE GASOLINE WITH CARE as it is an extremely
flammable fuel.
• Check the fuel before starting the engine. Do lot fill the
fuel tank indoors, while the engine is running, oi while the
engine is still hot. Turn the unit off and let the engine cool
before refueling.
• Fuel your shredder in a clean area. Do not smol :e while
refueling.
• Fuel tank cap must be secure at all times excep t during
refueling.
• Avoid spilling gasoline or oil. Wipe the unit cleat i of any
spilled fuel or oil.
• Store fuel and oil in approved containers, away from heat
or open flame, and out of reach of children.
• This machine should be operated only upon a kivel sur
face.
• Assure that all screws, nuts and bolts and other fasteners
are properly secured.
OPERATION
• When feeding shreddable material into this equipment,
be extretnely careful that pieces of metal, rocfs, bottles,
cans or other foreign objects are not included Personal
injury or damage to the machine could result.
• If the cutting mechanism strikes any foreign object or if
your machine should start making an unusual noise or
vibration, immediately stop the engine, disconnect the
spark plug wire from the spark plug and move it away
from the spark plug. Allow the machine to stop and take
the following steps:
Inspect for damage.
Replace or repair any damaged parts.
Check for any loose parts and tighten to assure contin
ued safe operation.
• The engine must be kept clean of debris and other accu
mulations.
• 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 feed opening.
• Never place your hands or any other part of your body or
clothing inside the feeding chamber, discharge chute or
near any moving part while the engine is running.
• Keep all guards and deflectors in place and in good work
ing condition to assure continued safe operation.
• Always stand clear of the discharge area when operating
this machine.
• Keep your face and body back from the feed opening to
avoid accidental bounce back of any material.
• Do not over-reach. Keep proper balance and footing at all
times.
• The engine governor settings on your machine must not
be altered, changed, or tampered with. The governor
controls the maximum safe operating speeds and pro
tects the engine and all moving parts from damage
caused by overspeed.
• Do not transport machine while engine is running.
• Do not operate engine if air cleaner or cover directly over
carburetor air intake is removed, except for adjustment.
Removal of such parts could create a fire hazard.
MAINTENANCE AND STORAGE
• When this equipment is stopped for servicing, inspection,
storage or to change an accessory, make sure the spark
plug wire is disconnected from the spark plug and moved
away from the spark plug. The machine should be
allowed to cool down before making such inspection,
adjustments, service, etc. Maintain your machine with
care and keep it clean for the best and continued safe
operation.
• Do not use flammable solutions to clean the air filter.
• When not in use, your machine should be stored out of
the reach of children. Keep where gasoline fumes will not
reach an open flame or spark. For long periods of stor
age, refer to the “Off-Season Storage” section of this
manual.
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ASSEMBLY INSTRUCTIONS
IMPORTANT: This unit is shipped WiTHOUT
GASOLINE or OIL. After assembly, see separate
engine manuai for proper fuei and engine oil rec
ommendations.
NOTE: To determine right and left hand sides of
your shredder, stand behind and face the hopper
(engine is at the front of the unit).
Spacers
(Inside^
Hinge)
Hex Boit
Chute
Defiector
FiGURE 1.
Your shredder has been completely assembled at the
factory, except for the chute deflector and the catcher
bag. A pair of safety glasses are also included in the
carton.
TO REMOVE SHREOOER FROM CARTON
Cut the corners of the carton. Remove all packing
inserts. Roll shredder out of carton. Make certain all
parts, literature and the safety glasses have been
removed before the carton is discarded. All hardware
has been placed in position on the shredder.
WARNING: Make certain the spark plug
wire is disconnected and moved away
A
from the spark plug before assembling
the shredder.
AnACHING THE CHUTE DEFLECTOR (Hardware B)
"(See Figure 1)
1. Remove the hand knobs and cupped washers
from each side of the discharge opening on the
left side of the shredder.
2.
Remove the hex lock nut, two spacers and hex
bolt from inside the hinge on top of the discharge
opening on the housing. Do not remove one
spacer from the hex bolt.
3.
Place the chute deflector in position on the dis
charge opening. Insert bolt through hinge on
chute deflector and housing (spacer fits inside
hinge).
Place the second spacer over the hex bolt, inside
the other part of the hinge. Secure with hex Ipck
nut. Tighten securely.
5.
Secure both sides of the chute deflector to the
housing using the hand knobs and cupped wash
ers (cupped side of washers go against the chute
deflector).
WARNING: Do not operate this shredder
unless chute deflector has been properly
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installed and secured with hand knobs.
ATTACHING THE CATCHER BAG
Your shredder is equipped with a catcher bag to catch
the shredded material.
To attach the bag, place the opening of the bag over
the chute deflector so it completely covers the chute
opening. Depress the plunger on the drawstring, pull
on the drawstring until the bag is tight around the
chute opening. Release plunger to lock it into position.
■See figure 2.
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OPERATION
KNOW YOUR SHREODER
READ THIS OWNER’S MANUAL AND SAP ETY RULES BEFORE OPERATING YOUR SHREDDER. Compare
the illustrations with your shredder to familie rize yourself with the location of various controls and adjustments.
Save this manual for future reference.
OPERATING CONTROLS
CHOKE LEVER—Used to enrich the fuel mix ure in
the carburetor when starting a cold engine.
STARTER HANDLE—Used to manually start the
engine.
THROTTLE CONTROL—Controls engine speed and
stops the engine.
The operation of any shredder can result in for
eign objects being thrown into the eyes , which
can result in severe eye damage.
Always wear safety glasse s or eye
shields. We recommend wide
||||||b|H vision safety mask for over specta-
O'* standard safety glar ¡ses.
BEFORE STARTING
1. Place the shredder on a firm, level surfac 3.
2. Service engine with gasoline and oil as instructed
in the separate engine manual packed v/ith your
shredder.
3. Attach spark plug wire to spark plug.
NOTE: Check the fuel level periodically to avoid run
ning out of gasoline while operating the shredder. 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” on
page 6.
TO START ENGINE
WARNING: Be sure no one other than the
operator is standing near the shredder
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1 Place the throttle control lever in FAST position.
2. Move choke lever to CHOKE position (a warm
3. Grasp starter handle and pull rope out slowly until
while starting or operating.
Refer to separate engine manual.
engine may not require choking).
engine reaches start of compression cycle (rope
will pull slightly harder at this point). Let the rope
rewind slowly.
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4. Pull rope with a rapid, continuous, full arm stroke.
Keep a firm grip on starter handle. Let rope
N rewind slowly. Do not let starter handle snap back
against starter.
5. Repeat preceding instructions 3 and 4 until
engine fires. When engine starts, move choke
lever on engine halfway between CHOKE and
OFF.
6. Move throttle control to SLOW position for a few
minutes warm-up. Move choke lever to OFF posi
tion as engine warms up.
NOTE: In order to idle smoothly, a new engine may
require 3 to 5 minutes running above slow idle speed.
Idle speed has been adjusted to be correct after this
break-in period.
TO STOP ENGINE
1. Move throttle control lever to STOP position.
2. Disconnect spark plug wire and move away from
spark plug to prevent accidental starting while
equipment is unattended.
HOW TO USE YOUR SHREDDER
Do not attempt to shred or chip any material other
than vegetation found in a normal yard (i.e., branches,
K leaves, twigs, etc.).
WARNING: The shredder discharges
material with considerable velocity. Keep
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1. Leaves and small branches up to 1/2" diameter
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away from the area around the chute
deflector. Always stop the engine and
disconnect the spark plug wire when
removing or attaching the bag, when
changing containers or when removing
the shredded material, wear safety glass
es and gloves whenever using your
shredder.
can be fed into the hopper assembly. See figure 4.
If it becomes necessary to push material into the
shredder, use a small diameter stick—NOT YOUR
HANDS. The stick cannot exceed 1/2" in diameter
so it will be ground up if it gets into the impeller
assembly.
WARNING: Do not put material larger
than 1/2" in diameter into the hopper.
Personal injury or damage to the
machine could result. Material of a larger
diameter may be fed into the chipper
chute according to the chart in next
column.
2. Bulky material, such as stalks or heavy branches,
up to the diameter listed in the chart below
should be fed into the chipper chute. See figure
5.
WARNING: Do not attempt to shred or
chip material larger than specified in the
A
A
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 on page 6.
For best performance, it is important to keep the
shredding blade and the chipper blades sharp. Refer
to Maintenance section, page 7.
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.
chart below. Personal injury or damage
to the machine could result.
Chipper Chute
Model
640A (3.5 HP)
641A (4 HP)
645A (5 HP)
WARNING: Make certain the chipper
chute door is closed when chipper chute
is not in use.
Capacity
2"
2-1/2"
3"
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FIGURE 5.
2 ■ (3.5 HP)
^2-1/2" (4 HP)
' ,oi3"(5HP)
Maximum
Diameter
Chipper
Chute
IVIAINTENANCE
WARNING: Always stop engine and dis
connect spark plug wire before cleaning,
A
lubricating or performing any repairs or
maintenance.
LUBRICATION
Lubricate the pivot points on the chute def ector and
chipper chute door once a season using a light oil.
ENGINE
Refer to the separate engine manual for engine main
tenance instructions.
Maintain engine oil as instructed in the separate
engine manual packed with your unit. Read and follow
instructions carefully.
Service air cleaner every 25 hours under n armal con
ditions. Clean every few hours under extre nely dusty
conditions. Poor engine performance and flooding
usually indicates that the air cleaner should be ser
viced. To service the air cieaner, refer to the separate
engine manual packed with your unit.
The spark plug should be cleaned and the gap reset
once a season. Spark plug replacement is recom
mended at the start of each season; chock engine
manual for correct plug type and gap specil ications.
Clean the engine regularly with a clott or brush.
Keep the cooling system (blower housing area) clean
to permit proper air circulation which is essential to
engine performance and life. Be certain to remove all
dirt and combustible debris from muffer area.
REMOVING THE FLAIL SCREEN
If the discharge area becomes clogged, remove the
flail screen and clean area as follows.
1. Stop the engine, make certain the shredder has
come to a complete stop and disconnect spark
plug wire from the spark plug before unclogging
the chute.
2. Loosen the two hand knobs on each side of the
chute deflector. Lift the chute deflector up, and tie
it out of the way.
3. Remove two hairpin clips from the clevis pins
which extend through the housing. Remove the
cievis pins. Lift the flaii screen from inside the
housing. See figure 6.
4. Clean the screen by scraping or washing with
water. Reinstall the screen.
NOTE: Be certain to reassemble the flail screen with
the curved side down as shown in figure 6.
Chute Deflector
CLEANING
The shredder may be cleaned by running water from
a hose through the hopper assembly and chipper
chute with the engine running. Allow the shredder to
dry thoroughly.
Wash the bag periodically with water. / Jlow to dry
thoroughly in the shade. Do not use heat.
Hand Knobs
FIGURE 6.
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SHARPENING OR REPLACING CHIPPER BLADES
1. Disconnect spark plug wire and move it away
from spark plug.
2. Remove the flail screen as instructed in previous
section.
3. Remove the chipper chute by removing three hex
nuts and washers. A 1/2" wrench is required. See
figure 6.
NOTE: When reassembling, the cupped washer goes
on the bottom of the chipper chute with the cupped
side against the chute.
4. Rotate the impeller assembly by hand until you
locate one of the chipper blades in the chipper
chute opening. Remove the blade, using a 3/16"
alien wrench on the outside of the blade and 1/2"
wrench on the impeller assembly (inside the
housing). See figure 7.
5. Remove the other blade in the same manner.
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FIGURE 7.
Replace or sharpen blades. If sharpening, make cer
tain to remove an equal amount from each blade.
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 in the
impeller assembly).
NOTE: When reassembling, make certain the open
ing on the back-up plate is toward the bottom of the
unit.
Allen
Screws
Torque
Wrench
Blade
FIGURE 8.
4. Loosen the two hand knobs and cupped washers
which secure the chute deflector, and raise the
chute deflector.
5. Keep the impeller assembly from turning by
inserting a 1/2" or 3/4" diameter pipe through the
flail screen, or remove the flail screen, and insert
a piece of wood (2 x 4) into the chute opening.
6. Remove the two outside screws on the blade,
using a 3/16" alien wrench and a 1/2" wrench.
7. Remove the blade by removing the center bolt,
lock washer and flat washer.
NOTE: Use caution when removing the blade to avoid
contacting the weld bolts on the housing.
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 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 9.
SHARPENING OR REPLACING SHREDDING BLADE
The shredding blade may be removed for sharpening
or replacement as follows.
1. Disconnect spark plug wire and move it away
from spark plug.
2. Remove the six hex lock nuts and flat washers
from the housing weld bolts using a 1/2" wrench.
Remove the hopper assembly
3. Remove the back-up plate.
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When reassembling the blade, tighten to between 550
and 650 inch pounds, or lacking torque wrenc i, tight
en securely.
FLAILS
The flails, located inside the housing, nay be
reversed when they become dull. It is sugges ed that
this procedure be performed by your nearest autho
rized dealer.
CARBURETOR ADJUSTMENT
WARNING: If any adjustments am made
to the engine while the engine is r jnning
A
(e.g. carburetor), keep ciear of ail moving
parts. Be carefui of heated surfaces and
muffler.
Minor carburetor adjustment may be required :o com
pensate for differences in fuel, temperature, altitude
or load.
NOTE: A dirty air cleaner will cause engine to run
rough. Be certain air cleaner is clean and atta ched to
the carburetor before adjusting carburetor.
Do not make unnecessary adjustments. Factory set
tings are satisfactory for most applications and condi
tions. If adjustment is needed, refer to the separate
engine manual packed with your shredder.
OFF-SEASON STORAGE
The following steps should be taken to prepare your
shredder for storage.
1. Clean and lubricate the shredder thoroughly as
described in the lubrication instructions.
2. Refer to engine manual for correct engine storage
instructions.
3. If storing in an unventilated or metal storage
shed, coat metal parts with a light oil or silicone to
prevent rust.
4. Store in a dry, clean area. Do not store next to
corrosive materials, such as fertilizer.
Page 9
TROUBLE SHOOTING
PROBLEM POSSIBLE CAUSE(S)
Engine fails to start 1. Fuel tank empty, or stale fuel.
2. Spark plug wire disconnected.
3. Faulty spark plug.
Loss of power;
operation erratic
1. Spark plug wire loose.
2. Unit running on CHOKE.
3. Blocked fuel line or stale fuel.
4. Water or dirt in fuel system.
5. Carburetor out of adjustment.
6. Dirty air cleaner.
Engine overheats 1. Carburetor not adjusted
Too much vibration Loose parts or damaged
Unit does not
discharge
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properly.
2. Engine oil level low.
impeller.
1. Discharge chute clogged.
2. Foreign object lodged in impeller.
CORRECTIVE ACTION
1. Fill tank with clean, fresh fuel.
2. Connect wire to spark plug.
3. Clean, adjust gap or replace.
1. Connect and tighten spark plug wire.
2. Move choke lever to OFF position.
3. Clean fuel line; fill tank with clean
fresh gasoline.
4. Disconnect fuel line at carburetor to drain fuel
tank. Refill with fresh fuel.
5. Adjust carburetor.t
6. Service air cleaner.f
1. Adjust carburetor.t
2. Fill crankcase with proper oil.
Stop engine immediately and disconnect
spark plug wire. Tighten all bolts and nuts.
Make all necessary repairs. If vibration continues,
have unit serviced by an authorized service
dealer.
1. Stop engine immediately and disconnect
spark plug wire. Clean flail screen and inside
of housing. See Maintenance section of this
manual.
2. Stop engine immediately and disconnect
spark plug wire. Remove lodged object.
Rate of discharge
slows considerably or
composition of
discharged material
changes
tRefer to the engine manual packed with your unit.
NOTE: For repairs beyond the minor adjustments listed above, please contact your nearest authorized service dealer.
•N
Shredding blade and/or chipper
blades dull.
Sharpen or replace shredding and chipper
blades.
Page 10
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Page 11
N.
Page 12
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Model No. -6^0A -641A -645A
Spark Plug J-3C J-8C J19LM
Air Filter Element
Air Pre-Cleaner
Engine Oil (SAE 30)
Chipper Blade
Shredding Blade
Bag
Safety Glasses
30727
35 574 35974 491435
737-0208
(21 oz req’d.)
781-0490
742-0571
764-1 )199A
723-0400 723-0400 723-0400
30727
737-0208
(21 oz. req’d.)
781-0490
742-0571
764-0199A 764-0199A
491588
737-0208
(21 oz. req’d)
781-0490
742-0571
The only way to ins ure the performance of your product
is to use original equipment parts and accessories,
which are designed and engineered to exacting specifi
cations. When you substitute, you take a chance on
quality, reliability, s afety and performance. Use original
equipment parts—)»ee your local service dealer.
For Replacement Parts, Contact:
SERVICE DEPARTMENT • P.Ci. BOX 368022 • CLEVELAND, OHIO 44136-9722
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