Craftsman 247776150 Owner’s Manual

Operator’s Manual

1150 Series Engine

CHIPPER SHREDDER

Model No. 247.776150

• SAFETY

• UNPACKING

• ASSEMBLY

• OPERATION

CAUTION: Before using this product,
read this manual and follow all safety
rules and operating instructions.

Sears Brands Management Corporation, Hoffman Estates, IL 60179, U.S.A.

Visit our website: www.craftsman.com

• MAINTENANCE

• ESPAÑOL

Form No. 769-07077F

(June 19, 2017)

TABLE OF CONTENTS

Warranty Statement ..............................Page 2

Safe Operation Practices .........................Page 3

Assembly ........................................Page 6

Operation .......................................Page 9

Service and Maintenance ........................Page 12

Off-Season Storage ..............................Page 16

Troubleshooting ................................Pag e 17

Español ........................................ Page 20

Service Numbers ............................ Back Cover

WARRANTY STATEMENT

CRAFTSMAN LIMITED WARRANTY

FOR TWO YEARS from the date of sale, this product is warranted against any defects in material or workmanship.
WITH PROOF OF SALE, a defective product will receive free repair or replacement at option of seller.
For warranty coverage details to obtain free repair or replacement, visit the web site: www.craftsman.com/warranty
This warranty covers ONLY defects in material and workmanship. Warranty coverage does NOT include:

• Expendable items that can wear out from normal use within the warranty period, such as the blades, spark plug, air cleaner, flail screen and
catcher bag.

• Product damage resulting from user attempts at product modification or repair or caused by product accessories.

• Repairs necessary because of accident or failure to operate or maintain the product according to all supplied instructions.

• Preventive maintenance, or repairs necessary due to improper fuel mixture, contaminated or stale fuel.

This warranty is void if this product is ever used while providing commercial services or if rented to another person.
This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Sears Brands Management Corporation, Hoffman Estates, IL 60179

MODEL NUMBERPRODUCT SPECIFICATIONS

Engine Series: 1150
Engine Oil Type: SAE 30

Model Number ________________________________

Serial Number _________________________________
Engine Oil Capacity: 20 ounces
Fuel: Unleaded Gasoline

© Sears Brands, LLC

Date of Purchase _______________________________

Record the model number, serial number,

and date of purchase above.

2

SAFETY INSTRUCTIONS

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 this machine. Failure to comply with these
instructions may result in personal injury. When you see this symbol, HEED
ITS WARNING!

WARNING

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.

• 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 if 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.

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 objec ts
which ricochet can cause serious injur y to the eyes.

DANGER

This machine was built to be operated according to the safe operation
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.

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.

SAVE THESE INSTRUCTIONS!

• 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 star ting, 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.

Safe Handling of Gasoline:

To avoid personal injury or property damage use extreme care in handling
gasoline. Gasoline is extremely flammable and the vapors are explosive.
Serious personal injury can occur when gasoline is spilled on yourself or your
clothes which can ignite. Wash your skin and change clothes immediately.

• 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 running. Allow
engine to cool at least two minutes before refueling.

• Never over fill fuel tank. Fill tank to no more than ½ inch below 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.

3

SAFETY INSTRUCTIONS

• To reduce fire 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.

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 star ting 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 injur y 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 if your machine should start making
an unusual noise or vibration, immediately shut the engine of f. 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 safe

operation.

• 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 injur y 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, disconnec t 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.

MAINTENANCE & STORAGE

• Never tamper with safety devices. Check their proper operation regularly.

• Check bolts and screws for proper tightness at frequent intervals to keep the
machine in safe working condition. Also, visually inspect machine for any
damage and repair, if needed.

• 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.

• Maintain or replace safety and instruction labels, as necessary.

• Follow this manual for safe loading, unloading, transpor ting, 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 of f-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 of seven (7) years, or 60 hours of operation. At the end of

the Average Useful Life have the machine 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.

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 SORE (Small Off Road Equipment) are certified
to operate on regular unleaded gasoline, and may include the following
emission control systems: Engine Modification (EM), Oxidizing Catalyst (OC),
Secondary Air Injection (SAI) and Three Way Catalyst (TWC) if so equipped.

4

SAFETY INSTRUCTIONS

SPARK ARRESTOR

WARNING

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 arrestor meeting applicable local or state laws (if any).

If a spark arrestor 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 arrestor for the muf fler is available through your nearest Sears Parts
and Repair Service Center.

SAFETY SYMBOLS

This page depic ts and describes safety symbols that may appear on this product. Read, understand, and follow all instructions on the machine before
attempting to assemble and operate.

Symbol Description

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 inlet and discharge openings while machine is running. There are rotating blades
inside

BYSTAND ERS
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.

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.

SAVE THESE INSTRUCTIONS!

5

ASSEMBLY

A

B

A

A

B

B

A

B

C

IM PORTANT: This unit is shipped without gasoline or oil in the engine. Be certain
to service engine with gasoline and oil as instructed in the Operation section of this
manual before operating your machine.

NOTE: Reference to right and left hand side of the Chipper Shredder is observed
from the operating position.

UNPACKING

Opening The Carton

1. Cut each corner of the carton vertically from top to bottom.

2. Remove all loose parts.

3. Remove loose packing material.

Removing The Unit From The 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 Oil

• Operator’s Manual

• Engine Operator’s Manual

Attaching The Hopper Assembly

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

Attaching The Chute Deflector

1. A. Remove six hex nuts and washers from the weld studs on the
impeller housing. Do not remove support plate. See Figure 1.

Figure 1

B. Place hopper assembly into position in front of impeller housing,
aligning holes in hopper assembly collar with weld studs.

1. A. Remove the wing knobs from each side of the lower impeller housing.
See Figure 3.

Figure 3

B. Remove the hex lock nut, spacers, and hex bolt from the top of the
impeller housing.

6

ASSEMBLY

A

B

C

A

B

A

B

2. A. Align the chute deflector in position on the discharge opening and
inser t hex bolt with spacer through hinge on chute def lector (spacers fit
inside of hinges). See Figure 4.

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.

2. A. Align the chipper chute over the weld studs, so the slot in the bottom of
the chute is facing down. See Figure 6.

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.

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, f lat washers, and lock nuts from the two holes on

the upper end of the support brace.

Figure 5

7

ASSEMBLY

A

B

C

A

B

C

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.

4. 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.

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 deflec tor

opening.

C. Clip drawstring back on itself, tight against chute def lector to secure

into position. See Figure 8.

Figure 7

B Tighten the bolts securing the suppor t brace to the frame.
C. Tighten the three nuts on the weld studs holding the chipper chute to

the impeller housing.

Figure 8

8

OPERATION

STOP

Start/ Run Slow/ Idle

Engine Off

Chute

Deflector

Oil Fill

Gas Fill

Release Rod

Tamper

(large) Hopper Assembly

(small) Chipper Chute

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.

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.

Meets ANSI Safety Standards

Craftsman Yard Vacuums conform to the safety standard of the American National Standards Institute (ANSI).

Figure 9

WARNING

The operation of any chipper shredder can result in foreign objects being thrown
into the eyes, which can damage your eyes severely. Always wear the safety
glasses provided with this unit or eye shields before 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:

Choke Control

The choke control is used to choke the carburetor and assist in starting the engine.

9

OPERATION

Oil Viscosity Chart

5W30

Colder

Warmer

SAE30

STOP

Gas And Oil Fill-Up

Oil (one bottle shipped with unit)

First Time Use

1. Remove oil fill plug.

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 plug and tighten.

Subsequent Uses

Only use high quality detergent oil rated with API service classif ication SF, SG,
or SH. Select the oil’s SAE viscosity grade according to the expected operating
temperature. Follow the chart below.

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 by removing the oil fill plug and looking into the oil fill
hole. Oil should be visible up to the threads of the oil fill plug, almost to
the point of overflowing. Fill if necessary. Capacity is approximately 20 oz.
Overfilling can cause a hazardous situation, be sure to wipe up any spilled or
excess oil.

2. Replace oil fill plug and tighten.

3. Keep oil level at FULL. Running the engine with too little oil can result in
permanent engine damage.

CAUTION

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 in
storage.

CAUTION

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.

CAUTION

Never use engine or carburetor cleaner products in the fuel tank or
permanent damage may occur.

NOTE: Check the fuel level periodically to avoid running out of gasoline 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 sec tion.

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-of f valve to the ON position.

4. Move the choke lever on the engine to CHOKE position. (A warm engine
may not require choking.) See Figure 10.

Gasoline

WARNING

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.

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 METHANOL. Replace fuel cap.

Figure 10

5. Move throttle control to START/RUN (Rabbit) position. See Figure 10.

6. Standing behind the unit, grasp starter handle and pull rope out until you

10

feel a drag.

OPERATION

NOTE: You will hear a noise as the engine finds the start of the compression cycle.
The noise is caused by the chipping and shredding f lails, and you will hear it until
the engine impeller reaches full speed.

1. Pull the rope with a rapid, continuous, full arm stroke. Keep a firm
grip on the starter handle. Let the rope rewind slowly.

2. Repeat, if necessary, until engine starts. When engine starts,
move choke control gradually toward the RUN position..

3. If engine falters, move choke control back toward the CHOKE position
and repeat steps 5 though 8.

4. ALWAYS keep the throttle control in the START/RUN position when operating
the chipper shredder.

To Stop Engine

1. Move throttle control lever to slow (turtle) position. Whenever
possible, gradually reduce engine speed before stopping engine.

2. Move throttle control lever to STOP or OFF position.

3. Turn the fuel shut-of f valve to the OFF position.

4. Disconnect spark plug wire and gr ound it against the engine to prevent
accidental starting while the equipment is unattended.

Shredding

Yard waste such as leaves and pine needles can be placed in the hopper for
shredding. After material has been processed by the shredder blade and flails, it will
be forced out of the chute deflector, and, if 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.

• Always wear eye protection, hearing protection, and leather work gloves
when operating the machine.

• Adhere to all safety precautions in the operation portion of the safety
insructions in this manual.

• Use the tamper to safely feed material into the chipper chute.

• Always wear eye protection, hearing protection, and leather work gloves
when operating the machine.

• Adhere to all safety precautions in the operation portion of the safety
insructions in this manual.

IM PORTANT: Never feed branches with a diameter greater than three (3) inches
into the chipper chute. Doing so can result in serious damage to your unit’s chipper
blades, flails or impeller.

NOTE: For best performance, always operate the unit with sharp 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 assembly and lift
slightly.

2. With the other hand pull out on the release rod and lower the hopper
assembly to the ground.

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 the
drawstring until the bag is tight around the chute opening and clip the
drawstring tight against the chute deflector.

IM PORTANT: The flail screen is located inside the housing in the discharge area. If
the flail screen becomes clogged, remove and clean as instruc ted in the Service and
Maintenance section. For best performance, it is also important to keep the chipper
blades sharp.

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 chipper chute.

• Never feed more than one branch into the chipper chute at a time.

• Never feed anything other than branches (or wood) into the chipper chute.

• Apply intermittent pressure (force, in short pulses) while feeding larger (3­inch diameter) branches into the chipper chute, to avoid bogging or stalling
the engine.

11

SERVICE AND MAINTENANCE

Electrode

Porcelain

.030 (.76 mm) gap

MAINTENANCE SCHEDULE

WARNING

Before performing any type of maintenance/service, disengage all controls
and stop the engi ne. Wait until all moving parts have come to a co mplete
stop. Disconnec t spark plug wire and gro und it against the engine to prevent
unintended starting. Always wear safety glasses during operation or while
performing any adjustments or repairs.

Interval Item Service Service Log

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 1. Engine oil†

2. Air cleaner

3. Control linkages and pivots
Annually or 50 hours 1. Engine oil

2. Muff ler
Annually or 100 hours 1. Spark plug 1. Clean, check and reset gap, or replace

Before Storage 1. Fuel system 1. Run engine until it stops from lack of fuel

† Under heavy load or in high temperatures

1. Check

2. Tighten or replace

3. Clean

1. Change

2. Replace

3. Lube with light oil

1. Change

2. Inspect

WARNING

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.

Follow the maintenance schedule given below. This chart describes service
guidelines only. Use the Service Log column to keep track of completed
maintenance tasks. To locate the nearest Sears Service Center or to schedule ser vice,
simply contact Sears at 1-888-331-4569.

spark plug.

or add a gasoline additive to the gas in
the tank.

• 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 if elec trodes are pitted, burned, or the porcelain is
cracked.

Figure 11

12