Craftsman 1450 User Manual [en, es]
Operator's Manual
1450 Series Engine
Chipper Shredder
For questions, call
1-800-4-iViY-HOME
CAUTION: Before using
this product, read this
manual and follow ail
safety rules and operating
instructions.
Sears, Roebuck and Co., Hoffman Estates, IL 60179, U.S.A.
Visit our web site: www.craftsman.com
• SAFETY
• ASSEMBLY
• OPERATION
• MAINTENANCE
• PARTS LIST
• ESPAÑOL
FORM NO. 769-05040
5/4/2009
TABLE OF CONTENTS
Warranty Statement
Safe Operation Practices
Safety Labeis.............................................Page 7
Assembiy
Operation...................................................Pages 12-13
Service and Maintenance..........................Pages 14-17
Off-Season Storage...................................Page 18
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Page 2
Pages 3-6
Pages 8-11
Troubie Shooting
Parts List
Labei Map
Repair Protection Agreement
Españoi....................................................Page 35
Service Numbers
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Page 19
Page 31
Page 34
Page 20-30
Back Oover
WARRANT
I
CRAFTSMAN FULL WARRANTY
When operated
within two years from the date of purchase, return it to any Sears store. Sears Parts & Repair Service Center, or other Craftsman outlet in the
United States for free repair (or replacement it repair proves impossible).
This warranty applies for only 90 days from the date of purchase it this chipper shredder is ever used for commercial or rental purposes.
This warranty covers ONLY defects in material and workmanship. Sears will NOT pay for:
• Expendable items that become worn during normal use, including but not limited to blades, spark plug, air cleaner, flail screen and catcher
bag.
• Standard maintenance servicing, oil changes, or tune-ups.
• Tire replacement or repair caused by punctures from outside objects, such as nails, thorns, stumps, or glass.
• Tire or wheel replacement or repair resulting from normal wear, accident, or improper operation or maintenance.
• Repairs necessary because of operator abuse, including but not limited to damage caused by impacting objects that bend the frame or
crankshaft, or over-speeding the engine.
• Repairs necessary because of operator negligence, including but not limited to, electrical and mechanical damage caused by improper
storage, failure to use the proper grade and amount of engine oil, or failure to maintain the equipment according to the instructions
contained in the operator's manual.
• Engine (fuel system) cleaning or repairs caused by fuel determined to be contaminated or oxidized (stale). In general, fuel should be used
within 30 days of its purchase date.
• Normal deterioration and wear of the exterior finishes, or product label replacement.
and
maintained according to all supplied instructions, if this chipper shredder fails due to a defect in material or workmanship
This warranty applies only while this product is within the United States.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.
Sears, Roebuck and Co., FI off man Estates, IL 60179
PRODUCT SPECIFICATIONS
Engine Series: 1450
Engine Oil Type: SAE 30
Engine Oil Capacity: 28 ounces
Fuel: Unleaded Gasoline
Spark Plug: Champion® RC-12YC
Spark Plug Gap: .030”
§ Sears Brands, LLC
MODEL NUMBER
Model Number....................................................
Serial Number
Date of Purchase
....................................................
...............................................
Record the model number, serial number
and date of purchase above
SAFETY INSTRUCTIONS
J
A WARNING
This symbol points out important safety instructions which, it 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 this machine. Failure to comply with
these instructions may result in personal injury. When you see this
symbol, HEED ITS WARNING!
AWARNING
CALIFORNIA PROPOSITION 65
Engine Exhaust, some of its constituents, and certain vehicle
components contain or emit chemicals known to State of California
to cause cancer and birth defects or other reproductive harm.
TRAINING
Read, understand, and follow all instructions on the machine 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.
Read the Operator’s Manual and follow all warnings and safety
instructions. Failure to do so can result in serious injury to the
operator and/or bystanders. For questions, call 1-800-659-5917.
Be familiar with all controls and their proper operation. Know how
to stop the machine and disengage them quickly.
Never allow children under 16 years of age to operate this
machine. Children 16 and over should read and understand the
instructions and safe operation practices in this manual and on
the machine and be trained and supervised by an adult.
Never allow adults to operate this machine without proper
instruction.
Keep bystanders, pets, and children at least 75 feet from the
machine while it is in operation. Stop machine it anyone enters
the area.
Never run an engine indoors or in a poorly ventilated area. Engine
exhaust contains carbon monoxide, an odorless and deadly gas.
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.
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.
A DANGER
This machine was built to be operated according to the safe opera
tion practices 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 fingers, hands,
toes and feet and throwing debris. Failure to observe the following
safety instructions could result
in
serious injury or death.
___________
AWARNING
Your Responsibility—
persons who read, understand and follow the warnings and instruc
tions in this manual and on the machine.
SAVE THESE INSTRUaiONS!
PREPARATION
• 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.
• Always wear safety glasses or safety goggles during operation
and while performing an adjustment or repair, to protect your
eyes. Thrown objects which ricochet can cause serious injury to
the eyes.
• 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.
• Before starting, check all bolts and screws for proper tightness to
be sure the machine is in safe working condition. Also, visually
inspect machine for any damage at frequent intervals.
• Maintain or replace safety and instructions labels, as necessary.
Restrict the use of this power machine to
SAFETY INSTRUCTION
I
Safe Handling of Gasoline;
To avoid personal
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.
• Use only an approved gasoline container.
• Never fill containers inside a vehicle or on a truck or trailer bed
with a plastic liner. Always place containers on the ground away
from your vehicle before filling.
• When practical, remove gas-powered equipment from the truck
or trailer and refuel it on the ground. If this is not possible, then
refuel such equipment on a trailer with a portable container, rather
than from a gasoline dispenser nozzle.
• Keep the nozzle in contact with the rim of the fuel tank or
container opening at all times until fueling is complete. Do not use
a nozzle lock-open device.
• Extinguish all cigarettes, cigars, pipes and other sources of
ignition.
• Never fuel machine indoors.
• Never remove gas cap or add fuel while the engine is hot or run
ning. Allow engine to cool at least two minutes before refueling.
• Never over fill fuel tank. Fill tank to no more than
bottom of filler neck to allow space for fuel expansion.
• Replace gasoline cap and tighten securely.
• If gasoline is spilled, wipe it off the engine and equipment. Move
unit to another area. Wait 5 minutes before starting the engine.
• To reduce tire hazards, keep machine free of grass, leaves, or
other debris build-up. Clean up oil or fuel spillage and remove any
fuel soaked debris.
• Never store the machine or fuel container inside where there is an
open flame, spark or pilot light as on a water heater, space heater,
furnace, clothes dryer or other gas appliances.
injury
or property damage use extreme care in
'/2
inch below
OPERATION
• 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.
• Before starting the machine, make sure the chipper chute, feed
intake, and cutting chamber are empty and free of all debris.
• 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.
• If it becomes necessary to push material through the shredder
hopper, use a small diameter stick. Do not use your hands or feet.
If the impeller strikes a foreign object or it 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.
b. Repair or replace any damaged parts.
c. Check for any loose parts and tighten to assure continued
Do not allow an accumulation of processed material to build up in
the discharge area. This can prevent proper discharge and result
in kickback of material through the feed opening.
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.
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.
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.
Keep all guards, deflectors and safety devices in place and
operating properly.
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.
Never operate this machine without good visibility or light.
Do not operate this machine on a paved, gravel or non-level
surface.
Do not operate this machine while under the influence of alcohol
or drugs.
Muffler and engine become hot and can cause a burn. Do not
touch.
Never pick up or carry machine while the engine is running.
If situations occur which are not covered in this manual, use care
and good judgement. Contact Customer Support for assistance
and the name of the nearest service dealer.
MAINTENANCE & STORAGE
Never tamper with safety devices. Check their proper operation
regularly.
Check bolts and screws tor proper tightness at frequent intervals
to keep the machine in safe working condition. Also, visually
inspect machine for any damage and repair, it needed.
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.
Do not change the engine governor settings or overspeed the
engine. The governor controls the maximum safe operating speed
of the engine.
safe operation.
SAFETY INSTRUCTIONS
J
• Maintain or replace safety and instruction labels, as necessary.
• Follow this manual for safe loading, unloading, transporting, and
storage of this machine.
• 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.
• Allow machine to cool at least 5 minutes before storing.
• Always refer to the operator's manual for proper instructions on
off-season storage.
• If the fuel tank has to be drained, do this outdoors.
• Observe proper disposal laws and regulations for gas, oil, etc. to
protect the environment.
• According to the Consumer Products Safety Commission (CPSC)
and the U.S. Environmental Protection Agency (EPA), this product
has an
Average Useful Life
operation. At the end of the
inspected annually by an authorized service dealer to ensure that
all mechanical and safety systems are working properly and not
worn excessively. Failure to do so can result in accidents, injuries
or death.
of seven (7) years, or 60 hours of
Average Useful Life
have the machine
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.
NOTICE REGARDING EMISSIONS
Engines which are certified to comply with California and federal
EPA emission regulations for SCRE (Small Cff Road Equipment) are
certified to operate on regular unleaded gasoline, and may include
the following emission control systems: Engine Modification (EM),
Cxidizing Catalyst (CC), Secondary Air Injection (SAI) and Three Way
Catalyst (TWC) it so equipped.
SPARK ARRESTOR
This machine is equipped with an internal combustion engine and
should not be used on or near any unimproved forest-covered,
brushcovered or grass-covered land unless the engine's exhaust
system is equipped with a spark arrester meeting applicable local or
state laws (it 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). Cther
states may have similar laws. Federal laws apply on federal lands.
A spark arrester for the muffler is available through your nearest Sears
Parts and Repair Service Center.
Awarning
SAFETY INSTRUCTION
SAFETY SYMBOLS
This page depicts
before attempting to assemble and operate.
and
describes safety symbols that may appear
Symbol Description
on
this product. Read, understand, and follow all instructions on the machine
I
-T
READ THE OPERATOR’S MANUAL(S)
Read, understand, and follow all instructions in the manual(s) before attempting to assemble and
operate
WARNING— ROTATING BLADES
Keep hands out of inletand discharge openings while machine is running. There are rotating blades
inside
BYSTANDERS
Keep bystanders, pets, and children at least 75 feet from the machine while it is in operation. Stop
machine if anyone enters the area.
WARNING—THROWN DEBRIS
Never operate without the chute deflector properly attached to the machine.
EYE PROTECTION
Always wear safety glasses or safety goggles when operating this machine.
A
WARNING:
warnings and instructions in this manual and on the machine.
Your Responsibility—Restrict the use of this power machine to persons who read, understand and follow the
SAVE THESE INSTRUaiONS!
A
SAFETY LABELS
ADANGER
TO AVOID SERIOUS INJURY:
• Do not operate on uneven ground where unit is
unstable. Do not operate on pavement, gravel or
other hard surfaces since objects can ricochet
and cause injury.
• To avoid a fire hazard, keep leaves, grass, and other
combustible materials away from hot engine and
muffler.
• Keep children and others away from area of
operation.
• Wear approved safety glasses, gloves and ear
protection.
INSTRUCTIONS:
TO RAISE AND LOWER HOPPER
ADANGER
TO AVOID SERIOUS INJURY:
• Read the owner's manual(s) before starting and
using unit.
• Keep all shields and guards in place and securely
attached.
• Keep hands, feet, face, clothing and long hair out of
Shredder Hopper, Chipper Chute and Discharge
Chute while the engine is running. Rotating cutting
blades inside these openings will cause serious
personal injury if contacted. Material being
processed
may bounce back from inlet openings or be thrown
from the discharge chute. Long hair or loose clothing
may be pulled sucked into the inlet openings.
• Do not place branches over 1/2 inch diameter into
the large Shredder Hopper. Branches over 1/2 inch in
diameter should be placed in the Small Chipper
Chute.
• If the chipped shredder jams or becomes clogged,
immediately shut off the engine and wait for all
moving parts to come to a complete stop before
clearing.
• Do not install remove, adjust, or service the
discharge screen or any other part while the engine
is running. Blade contact can occur.
A DANGE
ROTATING CUTTING BLADES.
KEEP HANDS AND FEET OUT
OF OPENINGS WHILE MACHINE
IS RUNNING.
A DANGER
DO NOT OPERATE THIS MACHINE
UNLESS THE CHUTE DEFLECTOR
HAS BEEN PROPERLY INSTALLED.
A WARNING
oe.y
DO NOT DEPOSIT
MATERIAL LARGER THAN
1/2" DIAMETER IN LARGE
SHREDDER HOPPER.
THIS MAY DAMAGE
MACHINE.
A
0
• ROTATING CUTTING BLADES.KEEP HANDS
AND FEET OUT OF OPENING WHILE
MACHINE IS RUNNING.
• DO NOT OPERATE THIS MACHINE UNLESS
THE CHUTE DEFLECTOR HAS BEEN
PROPERLY INSTALLED AND IS SECURED
WITH THE HAND KNOBS.
m
ASSEMBLY
IMPORTANT:
Be certain to service engine with gasoline and oil as instructed in the
Operation section of this manual before operating your machine.
NOTE:
is observed from the operating position.
Reference to right and left hand side of the Chipper Shredder
This unit is shipped without gasoline or oil in the engine.
OPENING CARTON
1. Cut each corner of the carton vertically from top to bottom.
2. Remove all loose parts.
3. Remove loose packing material.
REMOVING UNIT FROM CARTON
1. Lift unit from the rear to detach it from underlying carton material
and roll unit out of carton.
2. Check carton thoroughly for any other loose parts.
LOOSE PARTS IN CARTON
Hopper Assembly
Bag
Chute Deflector
Chipper Chute
Tamper
Safety Glasses
Engine Cil
Cwner’s Manual
ATTACHING THE HOPPER ASSEMBLY
1. A. Remove six hex nuts and washers from the weld studs on the
impeller housing. Do not remove support plate. See Figure 1.
B. Place hopper assembly into position in front of impeller
housing, aligning holes in hopper assembly collar with weld
studs.
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. See
Figure 2.
B. Slide the release rod out slightly to hook the hopper bracket
onto the rod. See Figure 2.
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.
Figure 2
ASSEMBLY
ATTACHING THE CHUTE DEFLECTOR
1. A. Remove the wing knobs from each side of the lower impeller
housing. See Figure 3.
B. Remove the hex lock nut, spacers, and hex bolt from the top of
the impeller housing.
2. 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 4.
B. Place second spacer over hex bolt inside other hinge and
secure with hex lock nut.
C. Secure both sides of chute deflector to impeller housing using
wing knobs previously removed.
ATTACHING THE CHIPPER CHUTE
1. A. Remove the three cupped washers and hex nuts from weld
studs around the opening on the side of the impeller housing.
See Figure 5.
B. Remove the hex bolts, flat washers, and lock nuts from the two
holes on the upper end of the support brace.
ASSEMBLY
2.
A. Align the chipper chute over the weld studs, so the slot
bottom of the chute is facing down. See Figure 6.
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.
3. 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.
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. The flat washers should be placed under
the bolt heads and against the inside surface of the plastic
chipper chute. Tighten securely. See Figure 7.
B. Tighten the bolts securing the support brace to the frame.
C. Tighten the three nuts on the weld studs holding the chipper
chute to the impeller housing.
ATTACHING THE BAG
1. To attach the bag:
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 8.
in
the
OPERATION
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 equipment to its fullest potential.
CHIPPER CHUTE
Allows twigs and small branches up to 3” in diameter to be fed into the
impeller for chipping. See Figure 9.
HOPPER ASSEMBLY
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 9.
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 9.
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 chipping or shredding and while performing any adjustments
or repairs._________________________________________
TAMPER
This plug is inserted into the chipper chute to push twigs and small
branches towards the impeller blades without endangering your hands.
THROTTLE CONTROL
This lever controls the engine speed and stop function. Through three
separate positions on the lever from left to right, the operation is as
follows:
CHUTE DEFLECTOR
Chipped and shredded debris is discharged out the chute deflector.
The unit may be operated with or without the collection bag attached to
the chute deflector. See Figure 9.
CHOKE CONTROL
The choke control is used to choke the carburetor and assist in starting
the engine.
Awarning
Start/ Run Slow/ Idle
Engine Off
Meets ANSI Safety Standards
Craftsman Yard Vacuums conform to the safety standard of the American National Standards Institute (ANSI).
11
OPERATION
J
GAS AND OIL FILL-UP
Oil (one bottle shipped with unit)
First Time
1. Remove oil fill dipstick.
2. With the chipper shredder on level ground, use a funnel to empty
entire contents of oil bottle provided into the engine.
3. Replace oil fill dipstick and tighten.
Subsequent Uses
Only use high quality detergent oil rated with API service classification
SR SG, or SH. Select the oil's SAE viscosity grade according to the
expected operating temperature. Follow the chart below.
/Colder-
Use
5W30
■32T
►Warme?\
SAE30
Oil Viscosity Chart
Although multi-viscosity oils (5W30,10W30, etc.) improve starting
in cold weather, they will result in increased oil consumption when
used above 32°F. Check your engine oil level more frequently to avoid
possible engine damage from running low on oil.
1. Check the oil level making certain not to rub the dipstick along the
inside walls of the oil fill tube. This would result in a false dipstick
reading. Wipe dipstick clean with cloth. Replace and tighten
dipstick. Remove and check oil level. Refill to FULL mark on
dipstick, it necessary. Capacity is approximately 28 oz. Cverfilling
will cause the engine to smoke profusely and will result in poor
engine performance.
2. Replace oil fill dipstick and tighten.
Alcohol blended fuels (called gasohol or using ethanol or methanol)
can attract moisture which leads to separation and formation of acids
during storage. Acidic gas can damage the fuel system of an engine
while
To avoid engine problems, the fuel system should be emptied before
storage for 30 days or longer. Drain the gas tank, start the engine
and let it run until the fuel lines and carburetor are empty. Use
fresh fuel next season. See STORAGE Instructions for additional
information.
Never use engine or carburetor cleaner products in the fuel tank or
permanent damage may occur.
ЮТЕ: Check the fuel level periodically to avoid running out of gaso
line while operating the chipper shredder. If the unit runs out of gas as
it is chipping, it may be necessary to unclog the discharge area before
it can be restarted. Refer to SERVICE AND MAINTENANCE section.
TO START ENGINE
1. Attach spark plug wire and rubber boot to spark plug.
2. Fill tank to no more than 1/2 inch below bottom of filler neck to
provide space for fuel expansion.
3. Turn the fuel shut-off valve to the CN position.
4. Move the choke lever on the engine to CHCKE
warm engine may not require choking.) See Figure 10.
5. Move throttle control to START/RUN (Rabbit)
Figure 10. ^
6. Standing behind the unit, grasp starter handle and pull rope out
until you feel a drag.
in
storage.
A CAUTION
_____________________________________
A CAUTION
A CAUTION
N
position. (A
JL m
position. See
Awarning
Use extreme care when handling gasoline. Gasoline is extremely
flammable and the vapors are explosive. Never fuel machine indoors
or while the engine is hot or running. Extinguish cigarettes, cigars,
pipes, and other sources of ignition.
3. Keep oil level at FULL. Running the engine with too little oil can
result in permanent engine damage.
Gasoline
1. Remove fuel cap from the fuel tank.
2. Make sure the container from which you will pour the gasoline is
clean and free from rust or foreign particles. Never use gasoline
that may be stale from long periods of storage in its container.
Gasoline that has been sitting for any period longer than four
weeks should be considered stale.
3. Fill fuel tank with clean, fresh, unleaded regular gasoline only. Do
not use gasoline containing METHANCL. Replace fuel cap.
12
Л
Figure 10
OPERATION
J
NOTE:
cycle. This noise is caused by the flails and fingers, which are part
the shredding mechanism, and it should be expected until the impeller
reaches full speed.
7. Pull the rope with a rapid, continuous, full arm stroke. Keep a firm
8. Repeat, if necessary, until engine starts. When engine starts,
9. It engine falters, move choke control back toward the CHOKE
10. ALWAYS keep the throttle control in the START/RUN position
TO STOP ENGINE
1.
A noise will be heard when finding the start of the compression
of
grip on the starter handle. Let the rope rewind slowly.
move choke control gradually toward the RUN m position..
N
position and repeat steps 5 though 8.
when operating the chipper shredder.
Move throttle control lever to slow (turtle) position.
Whenever possible, gradually reduce engine speed before
stopping engine.
Move throttle control lever to STOP or OFF position.
Turn the fuel shut-off valve to the OFF position.
Disconnect spark plug wire and ground it against the engine to
prevent accidental starting while the equipment is unattended.
CHIPPING
Branches up to 3” in diameter can be fed into the chipper chute.
Observe the following guidelines when chipping branches:
• Keep both hands firmly on the branch as you feed it into the
• Never feed more than one branch into the chipper chute at a time.
• Never feed anything other than branches (or wood) into the
• Apply intermittent pressure (force, in short pulses) while feeding
IMPORTANT:
three (3) inches into the chipper chute. Doing so can result in serious
damage to your unit's chipper blades, flails or impeller.
NOTE:
chipper blades. If a noticeable loss in performance is encountered
while chipping branches, the chipper blades should be replaced.
LOWERING THE HOPPER ASSEMBLY
1. With one hand grasp the handle at the top of the hopper assem
2. With the other hand pull out on the release rod and lower the
SHREDDING
Yard waste such as leaves and pine needles can be placed in the
hopper for shredding. After material has been processed by the shred
der blade and flails, it will be forced out of the chute deflector, and, it
attached, into a debris collection bag.
Observe the following guidelines when shredding yard debris:
• Never attempt to shred material other than normal yard debris
(leaves, twigs, pine cones, etc.).
• Avoid shredding fibrous plants such as tomato vines, palm fronds,
etc., until they are thoroughly dried out. Fresh vines do not shred
well and tend to wrap themselves around the impeller and flails.
• Place reasonable amounts of debris into the hopper at a time. Do
not overload the hopper.
• Allow the material in the hopper to be drawn into the blades and
shredded before adding additional debris to the hopper. Failure to
due so may result in a clogged hopper, clogged chute deflector or
a stalled engine.
TO EMPTY BAG
1. Un-clip drawstring and loosen bag from chute deflector opening.
2. Empty bag and reattach to the discharge chute opening. Pull on
IMPORTANT:
discharge area. If the flail screen becomes clogged, remove and
clean as instructed in the Service and Maintenance section. For best
performance, it is also important to keep the chipper blades sharp.
chipper chute.
chipper chute.
larger (3-inch diameter) branches into the chipper chute, to avoid
bogging or stalling the engine.
Never feed branches with a diameter greater than
For best performance, always operate the unit with sharp
bly and lift slightly.
hopper assembly to the ground.
the drawstring until the bag is tight around the chute opening and
clip the drawstring tight against the chute deflector.
The flail screen is located inside the housing in the
13
SERVICE AND MAINTENANCE
MAINTENANCE SCHEDULE
Awarning
Before performing any type of maintenance/service, disengage all
controls and stop the engine. Wait until all moving
a complete stop. Disconnect spark plug wire and ground it against the
engine to prevent unintended starting. Always wear safety glasses during
operation or while performing any adjustments or repairs.
Interval
Each Use 1. Engine oil level
2. Loose or missing hardware
3. Unit and engine.
1st 5 - 8 hours 1. Engine oil 1. Change
25 hours
Annually or 50 hours 1. Engine oil
Annually or 100 hours 1. Spark plug 1. Clean, check and reset gap, or
Before Storage 1. Fuel system 1. Run engine until it stops from lack of
t Under heavy load or in high temperatures
1.
Engine oilf
2. Air cleaner
3. Control linkages and pivots
2. Muffler
Item
parts
have come to
1. Check
2. Tighten or replace
3. Clean
1. Change
2. Replace
3. Lube with light oil
1. Change
2. Inspect
Follow the maintenance schedule given below. This chart describes
service guidelines only. Use the Service Log column to keep track of
completed maintenance tasks.
Center or to schedule service, simply contact Sears at
1-800-4-MY-HOME®.
Service Service Log
replace spark plug.
fuel or add a gasoline additive to the
gas in the tank.
To locate the nearest Sears Service
Awarning
Always stop engine and disconnect spark plug wire before performing
any maintenance or adjustments. Always wear safety glasses during
operation or while performing any adjustments or repairs.
GENERAL RECOMMENDATIONS
• Always observe all safety rules found on product labels and in
this operator's manual when performing any maintenance. Safety
rules can be found on the product labels and in this Operator’s
Manual beginning on page 3.
• The warranty on this chipper shredder does not cover items that
have been subjected to operator abuse or negligence. To receive
full value from warranty, operator must maintain the equipment as
instructed here.
• Some adjustments will have to be made periodically to maintain
your unit properly.
• Periodically check all fasteners and make sure these are tight.
ENGINE MAINTENANCE
Checking the Spark Plug
Clean spark plug and reset the electrode gap to 0.030” at least once a
season; replace every 100 hours of operation.
Clean area around the spark plug base. Do not sandblast spark
plug. Spark plug should be cleaned by scraping or wire brushing
and washing with a commercial solvent.
Remove and inspect the spark plug. Check gap to make sure it is
set at .030”. See Figure 11.
Replace the spark plug it electrodes are pitted, burned, or the
porcelain is cracked.
14
SERVICE AND MAINTENANCE
Servicing the Air Cleaner
A CAUTION
Do not use pressurized air or solvents to clean the air cleaner
cartridge.
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 an air cleaner
completely assembled.
Replace the air cleaner every 25 hours of operation.
1. Loosen screws that hold the air filter cover.
2. Cpen cover and remove air filter. See Figure 12.
3. Discard old air filter.
4. Install new air filter.
5. Close the cover and tighten screws.
NOTE:
Check Engine Oil
1. Check oil before each use. Stop engine and wait several minutes
2. Remove oil fill dipstick and wipe clean with cloth.
3. Replace and tighten dipstick. Remove and check oil level. Level
4. If needed, add oil slowly - recheck. Do not overfill.
5. Wipe dipstick clean, replace and tighten. Remove and check oil
If the filter is torn or damaged in any way, replace it.
before checking oil level. With engine on level ground, the oil must
be to FULL mark on dipstick.
should be at FULL mark.
level. Cil level should be at FULL line on dipstick.
A CAUTION
Do not overfill. Cverfilling with oil may cause the engine to not start, or
hard starting. If over the FULL mark on the dipstick, drain oil to reduce
oil level to FULL mark on dipstick.
Change Engine Oil
• Only use high quality detergent oil rated with API service
classification SF, SG, or SH. Select the oil's SAE viscosity grade
according to the expected operating temperature. Refer to opera
tion section for viscosity chart.
• Change engine oil after the first five to eight hours of operation,
and every fifty hours or every season thereafter. Change oil every
twenty five hours when operating engine under heavy load or in
high temperatures.
To Drain Oil
1. Drain the fuel from the tank by running the engine until the fuel
tank Is empty.
2. With engine CFF but still warm, disconnect spark plug wire and
keep it away from spark plug.
Used oil is a hazardous waste product. Dispose of used oil properly.
Do not discard with household waste. Check with your local authori
ties or Sears Service Center for safe disposal/recycling facilities.
4. Replace and tighten the oil drain end cap.
5. When engine is drained of all oil, place engine level. Refill with
6. Replace spark plug wire before starting.
Remove oil drain end cap located at the base of the engine, and
drain oil into an appropriate receptacle. See Figure 13.
A CAUTION
approximately 28 oz. of fresh oil. Fill to FULL line on dipstick.
Do not overfill. Refer to Check Engine Oil in this SERVICE &
MAINTENANCE section.
15
SERVICE AND MAINTENANCE
Service Muffler
Awarning
Temperature of muffler and nearby areas may exceed 150° F (65°C).
Avoid these areas.
• Inspect muffler every 50 hours, and replace if necessary.
Replacement parts for the muffler must be the same and installed
in the same position as the original parts.
Clean Engine
• Daily or before every use, clean grass, chaff or accumulated
debris from engine. Keep linkage, spring, and controls clean.
Keep area around and behind muffler free of any combustible
debris.
• Keeping engine clean allows air movement around engine.
• Engine parts should be kept clean to reduce the risk of overheat
ing and ignition of accumulated debris.
A CAUTION
Do not use water to clean engine parts. Water could contaminate fuel
system. Use a brush or dry cloth.
Carburetor Adjustment
The carburetor on this engine is not adjustable.
Before performing any type of maintenance on the machine, wait for
all parts to stop moving and disconnect the spark plug wire. Failure
to follow this instruction could result in personal injury or property
damage.
REMOVING THE FLAIL SCREEN
Awarning
Do not attempt to alter the engine speed by tampering with the
engine's governor linkage. Doing so could result in serious personal
injury and damage to the engine. The engine RPM has been set at
the factory.
Engine Speed
If the discharge area becomes clogged, remove the flail screen and
clean area as follows:
1. Stop the engine. Make certain the chipper shredder has come to
2. Disconnect spark plug wire from spark plug and ground against
3. A. Remove the bag and two wing knobs on each side of the chute
LUBRICATION
• Hopper Assembly-
assembly with light oil once a season.
• Discharge Chute-
chute with light oil once a season.
• Release Rod-
once a season.
CLEAN EQUIPMENT
• Clean the chipper shredder thoroughly after each use.
• Wash bag periodically with water. Allow to dry thoroughly in
shade.
• If the flail screen becomes clogged, remove and clean as
instructed below.
NOTE: Cleaning with a forceful spray of water is not recommended as
it could contaminate the fuel system.
Lubricate the pivot points on the hopper
Lubricate the pivot points on the discharge
Lubricate the release rod and spring with light oil
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.
SHARPENING OR REPLACING CHIPPER BLADES
1. Disconnect the spark plug wire and ground against the engine.
2. Remove the flail screen as instructed in the previous section.
3. Remove the chipper chute by removing three hex nuts and
Awarning
a complete stop.
the engine.
deflector. See Figure 14.
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 14.
washers.
16
SERVICE AND MAINTENANCE
4. Remove the chipper chute support brace 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.
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 15.
NOTE:
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.
7. Install a replacement blade (Part No. 742-0544) with the hardware
IMPORTANT:
gloves. Follow the original angle of grind and make sure to remove an
equal amount from each blade.
8. To replace the other blade, rotate the impeller to expose the
NOTE:
facing the same direction as when removed. Torque hardware to 250
-300 in. lbs.
Use a 3/16” hex key (Allen) wrench on the outside of the blade
removed earlier or sharpen and replace existing blade.
When sharpening the blade, protect hands by using
second blade and repeat the steps above.
Make certain blades are reassembled with the sharp edge
Awarning
The impeller’s chipper blades and shredder blade are sharp. Wear
leather work gloves to protect your hands.
SHARPENING OR REPLACING THE SHREDDER BLADE
1. Stop the engine and make certain that all moving parts have
come to a complete stop.
2. Disconnect the spark plug wire and ground against the engine.
3. Lower the hopper assembly and place a block under the flail housing.
4. Remove the six hex lock nuts and flat washers from the weld
studs on the flail housing. Retain the hardware.
5. Carefully separate the hopper assembly from the impeller as
sembly and remove the shredder plate. The shredder plate can be
identified by referring to item 29 in the parts list on page 20 & 21.
IMPORTANT:
bolt to between 550 and 700 in.-lbs. and the two outside bolts to
between 250 and 350 in.-lbs.
When reassembling the shredder blade, tighten center
NOTE:
embossed tab faces inward towards the impeller.
6. Remove the two wing knobs that secure the chute deflector and
7.
8.
When reassembling the shredder plate, make certain the
raise the chute.
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.
A. Remove the two internal hex screws, lock washers, and hex
lock nuts which secure the shredder blade to the impeller.
B. Remove the hex bolt, lock washer, and flat washer to
completely free shredder blade. See Figure 16.
Install a replacement blade (Part No. 742-0544) with the hardware
removed earlier or sharpen and replace existing blade.
NOTE:
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.
IMPORTANT:
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.
17
Use a 3/16” hex key (Allen) wrench on the outside of the
When sharpening the blade, follow the original angle
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