Champion 500137-N User manual

OPERATOR'S MANUAL
MODEL #500137-N
3 IN. (7.6 CM) CHIPPER SHREDDER
REV 20221122 Champion Power Equipment, Inc., Santa Fe Springs, CA USA
READ AND SAVE THIS MANUAL. This manual contains important safety precautions which should be read and understood before operating the product. Failure to
do so could result in serious injury. This manual should remain with the product.
Specifications, descriptions and illustrations in this manual are as accurate as known at the time of publication, but are subject to change without notice.

2
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER TABLE OF CONTENTS
TABLE OF CONTENTS
Introduction................................................... 3
Safety Definitions .......................................... 3
Important Safety Instructions....................... 4
Fuel Safety .........................................................5
Training .............................................................6
Preparation .........................................................6
Operation ...........................................................7
Maintenance, Transport and Storage..............................7
Safety and Dataplate Labels.......................................8
Operation Symbols .................................................9
Quickstart Label Symbols..........................................9
Controls and Features ................................. 10
Chipper Shredder................................................. 10
Parts Included .................................................... 10
Assembly ..................................................... 11
Unpacking ........................................................ 11
1) Install the Shredder Chute .................................... 11
2) Install the Handle.............................................. 11
3) Install the Chipper Chute...................................... 11
4) Install the Chute Deflector .................................... 12
Collection Bag .................................................... 12
Add Engine Oil.................................................... 12
Add Fuel .......................................................... 13
Operation..................................................... 14
Chipper-Shredder Location ...................................... 14
Work Area ........................................................ 14
Before Each Use Inspect the
Chipper-Shredder .................................................. 15
Starting the Engine............................................... 15
Chipper-Shredder Operation ..................................... 16
Chipping and Shredding Tips .................................... 16
Clearing the Shredder Hopper ................................... 17
Emptying the Collection Bag..................................... 17
Stopping the Engine.............................................. 17
Operation at High Altitude ....................................... 18
Maintenance ................................................ 18
Engine Maintenance ............................................. 18
Chipper-Shredder Maintenance ................................. 19
Cleaning the Chipper-shredder .................................. 19
Flail Housing and Impeller Cleaning ............................. 20
Blade Sharpening ................................................ 20
Maintenance Schedule........................................... 21
Storage ........................................................ 22
Chipper-shredder Storage ....................................... 22
Engine Stored for Less than 30 Days ........................... 22
Engines Stored for Over 30 Days ................................ 22
Specifications.............................................. 23
Chipper-shredder Specifications ................................ 23
Engine Specifications ............................................ 23
Fuel Specifications ............................................... 23
Engine Oil Specifications......................................... 23
Spark Plug Specifications........................................ 23
Valve Specifications.............................................. 23
Important Message About Temperature......................... 23
Parts Diagram .................................................... 24
Parts List ......................................................... 25
Engine Parts Diagram............................................ 26
Engine Parts Parts List........................................... 27
Troubleshooting........................................... 29

3
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER INTRODUCTION
INTRODUCTION
Congratulations on your purchase of a Champion Power Equipment
(CPE) product. CPE designs, builds, and supports all of our
products to strict specifications and guidelines. With proper
product knowledge, safe use, and regular maintenance, this
product should bring years of satisfying service.
Every effort has been made to ensure the accuracy and
completeness of the information in this manual at the time of
publication, and we reserve the right to change, alter and/or
improve the product and this document at any time without prior
notice.
Since CPE highly values how our products are designed,
manufactured, operated and are serviced, and also highly value
your safety and the safety of others, we would like you to take the
time to review this product manual and other product materials
thoroughly and be fully aware and knowledgeable of the assembly,
operation, dangers and maintenance of the product before use.
Fully familiarize yourself, and make sure others who plan on
operating the product fully familiarize themselves too, with the
proper safety and operation procedures before each use. Please
always exercise common sense and always err on the side
of caution when operating the product to ensure no accident,
property damage, or injury occurs. We want you to continue to use
and be satisfied with your CPE product for years to come.
When contacting CPE about parts and/or service, you will need to
supply the complete model and serial numbers of your product.
Transcribe the information found on your product’s nameplate
label to the table below
CPE TECHNICAL SUPPORT TEAM
MODEL NUMBER
500137-N
SERIAL NUMBER
DATE OF PURCHASE
PURCHASE LOCATION
SAFETY DEFINITIONS
The purpose of safety symbols is to attract your attention to
possible dangers. The safety symbols, and their explanations,
deserve your careful attention and understanding. The safety
warnings do not by themselves eliminate any danger.
The instructions or warnings they give are not substitutes for
proper accident prevention measures.
DANGER
DANGER indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
WARNING
WARNING indicates a hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
NOTICE
NOTICE indicates information considered important, but not
hazard-related (e.g., messages relating to property damaged).

4
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER IMPORTANT SAFETY INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
DANGER
Engine exhaust contains carbon monoxide, a colorless,
odorless, poison gas. Breathing carbon monoxide will cause
nausea, dizziness, fainting or death. If you start to feel dizzy or
weak, get to fresh air immediately.
Operate product outdoors only in a well ventilated area.
DO NOT operate the product inside any building, including
garages, basements, crawlspaces and sheds, enclosure or
compartment.
DO NOT allow exhaust fumes to enter a confined area through
windows, doors, vents or other openings.
DANGER
Using an engine indoors CAN KILL YOU IN MINUTES. Engine
exhaust contains carbon monoxide. This is a poison you cannot
see or smell.
NEVER use inside a home or garage, EVEN IF doors and
windows are open.
ONLY use OUTSIDE and far away from windows, doors,
and vents.
Install battery-operated carbon monoxide alarms or plug-in
carbon monoxide alarms with battery back-up according to the
manufacturer’s instructions.
DANGER
Rotating parts can entangle hands, feet, hair, clothing and/or
accessories. Traumatic amputation or severe laceration can
result.
Keep hands and feet away from rotating parts.
Tie up long hair and remove jewelry.
Operate equipment with guards in place.
DO NOT wear loose-fitting clothing, dangling drawstrings or
items that could become caught.
WARNING
Operation of this equipment may create sparks that can start
fires around dry vegetation.
A spark arrestor may be required. The operator should contact
local fire agencies for laws or regulations relating to fire
prevention requirements.
WARNING
Sparks can result in fire or electrical shock.
When servicing the engine:
Disconnect the spark plug wire and place it where it cannot
contact the plug.
DO NOT check for spark with the plug removed.
Use only approved spark plug testers.
WARNING
Running engines produce heat. Severe burns can occur on
contact. Combustible material can catch fire on contact.
DO NOT touch hot surfaces.
Avoid contact with hot exhaust gases.
Allow equipment to cool before touching.
Maintain at least 3 ft. (91.4 cm) of clearance on all sides to
ensure adequate cooling.
Maintain at least 5 ft. (1.5 m) of clearance from combustible
materials.
WARNING
Child, Pet and Bystander Hazard
Do not allow children, pets or bystanders near the work area
or location of the chipper-shredder. This can create potential
distractions and safety hazards. Accidents, damage and injury
could occur. A minimum distance of 75 ft. (22.9 m) from
the chipper-shredder is recommended. Projectiles can also
fly haphazardly in the work area. Only a qualified adult with
complete working knowledge of the product and safety rules
should operate the chipper-shredder and be in the work area.
WARNING
Projectile Hazard
Pieces of debris may be ejected from the chipper-shredder
while operating. Be alert.

5
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER IMPORTANT SAFETY INSTRUCTIONS
WARNING
Keep Operator Work Zone Clear
Keep work zone clear of debris while working to ensure safe
footing.
WARNING
Always wear proper clothing and safety gear.
Close fitting clothing and ANSI Z87.1 safety approved eye
protection must be worn at all times around the chipper-
shredder. Wear boots or sturdy shoes that will improve footing
around slippery surfaces.
WARNING
Rapid retraction of the starter cord will pull hand and arm
towards the engine faster than you can let go. Unintentional
startup can result in entanglement, traumatic amputation or
laceration. Broken bones, fractures, bruises or sprains could
result.
When starting engine, pull the starter cord slowly until
resistance is felt and then pull rapidly to avoid kickback.
CAUTION
Improper treatment or use of the chipper-shredder can
damage it, shorten its life and void your warranty.
Use the chipper-shredder only for intended uses. Operate
only on level surfaces. DO NOT expose chipper-shredder to
excessive moisture or dirt. DO NOT allow any material to block
the cooling slots.
DO NOT use the engine if:
–Equipment sparks, smokes or emits flames
–Equipment vibrates excessively
–Equipment makes unusual sounds
–Equipment is damaged
WARNING
Although the chipper shredder contains a spark arrester,
maintain a minimum distance of 5 ft. (1.5 m) from dry
vegetation to prevent fires.
Fuel Safety
DANGER
GASOLINE AND GASOLINE VAPORS ARE HIGHLY
FLAMMABLE AND EXPLOSIVE.
Fire or explosion can cause severe burns or death.
Gasoline and gasoline vapors:
–Gasoline is highly flammable and explosive.
–Gasoline can cause a fire or explosion if ignited.
–Gasoline is a liquid fuel but its vapors can ignite.
–Gasoline is a skin irritant and needs to be cleaned up
immediately if spilled on skin or clothes.
–Gasoline has a distinctive odor, this will help detect
potential leaks quickly.
–In the case of any petroleum gasoline fire, flames should
never be extinguished unless the fuel supply valve can be
turned OFF. By not doing so, if the fire is extinguished and
the supply of fuel is not turned OFF, an explosion hazard
could be created.
–Gasoline expands or contracts with ambient temperatures.
Never fill the gasoline tank to full capacity, as gasoline
needs room to expand if temperatures rise.
When adding or removing gasoline:
–DO NOT light or smoke cigarettes.
–Turn the engine off and let it cool for at least two minutes
before removing the gasoline cap. Loosen the cap slowly to
relieve pressure in the tank.
–Only fill or drain gasoline outdoors in a well-ventilated area.
–DO NOT pump gasoline directly into the engine at the gas
station. Always use an approved fuel container to transfer
the fuel to the engine.
–DO NOT overfill the gasoline tank.
–Always keep gasoline away from sparks, open flames, pilot
lights, heat and other sources of ignition.
When starting the engine:
–DO NOT attempt to start a damaged engine.
–Always make certain that the gasoline cap, air filter, spark
plug, fuel lines and exhaust system are properly in place.
–Always allow spilled gasoline to evaporate fully before
attempting to start the engine.
–Always make certain that the chipper-shredder is resting
firmly on level ground.

6
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER IMPORTANT SAFETY INSTRUCTIONS
When operating the chipper-shredder:
–DO NOT move or tip the chipper-shredder during operation.
–DO NOT tip the chipper-shredder or allow fuel or oil to spill.
When transporting or servicing the chipper-shredder:
–Make certain that the fuel valve is in the OFF position and
the gasoline tank is empty.
–Disconnect the spark plug wire.
When storing the chipper-shredder:
–Store away from sparks, open flames, pilot lights, heat and
other sources of ignition.
–Do not store chipper-shredder or gasoline near furnaces,
water heaters, or any other appliances that produce heat or
have automatic ignitions.
WARNING
NEVER use a gasoline container, gasoline tank, or any other
fuel item that is broken, cut, torn or damaged.
Training
1. Read the Operator’s Manual completely before attempting to
use this chipper-shredder.
2. Do not allow anyone to operate your chipper-shredder
who has not read the Operator’s Manual or has not been
instructed on the safe use of the chipper-shredder.
3. Never allow children or untrained adults to operate this
machine.
4. Many accidents occur when more than one (1) person
operates the chipper-shredder. If a helper is assisting, never
actuate controls until helper is clear of the area.
5. Never allow anyone to ride on the machine.
6. Never transport cargo on the chipper-shredder.
7. Projectiles can exit the chipper-shredder at high velocities.
To prevent injury, use the following instructions:
–Never operate the unit on asphalt or concrete.
–Never operate the unit close to any buildings or walls.
–Do not allow children, pets, bystanders, and assistants to
be within 75 ft. (22.9 m) of the unit during operation.
–Do not lean directly over any chute, entry or exit, during
operation.
–Keep the operator zone and adjacent area clear for safe,
secure footing.
WARNING
Although the chipper shredder contains a spark arrester,
maintain a minimum distance of 5 ft. (1.5 m) from dry
vegetation to prevent fires.
–Chipper-shredders should be used only for chipping
branches 3 in. (7.6 cm) or less in diameters or shredding
vegetation with small diameter branches. Do not use for
other purposes.
–Always make sure the spark plug wire is disconnected
from the engine when not in use, and before cleaning or
maintenance.
Preparation
1. Be thoroughly familiar with all controls and with proper use of
the equipment.
2. Make sure the spark plug wire is disconnected until
operation.
3. Safety Gear:
–Always wear safety shoes or heavy boots when operating
the machine.
–Always wear safety glasses or goggles when operating the
machine.
–Never wear jewelry or loose-fitting clothing that might
become entangled in moving or rotating parts of the
machine.
–Always wear hearing protection.
–Tie back long hair or anything that will dangle and may get
entangled.
4. Inspection:
–Make sure the spark plug wire has been fully removed and
the unit is grounded.
–Make sure the chutes, chambers, and intakes/exits are all
clean and free of any debris.
–Make sure the work area is clean and has no obstacles or
distractions.
–Make sure all connections and parts are secure and
undamaged.
–Make sure collection bag is fully connected and secured
when attached.
–Make sure material to be chipped is less than 3 in. (7.6 cm)
in diameter. Branches to be chipped can be pruned down.
–Make sure material to be chipped or shredded is not damp
or wet.

7
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER IMPORTANT SAFETY INSTRUCTIONS
5. Check to make sure the chipper-shredder is on a level
surface that is not asphalt, concrete or harden ground. Block
the wheels and ensure support leg is secure to prevent
unintended movement of the chipper-shredder during
operation.
–Always operate the chipper shredder from the
manufacturer’s indicated operator zone.
6. Fuel:
–Use an approved fuel container.
–Never add fuel to a running or hot engine.
–Fill fuel tank outdoors with extreme care. Never fill fuel tank
indoors.
–Replace gasoline cap securely and clean up any spilled fuel.
Operation
1. Before starting this chipper-shredder, review all safety rules.
Failure to follow these rules may result in serious injury to the
operator or bystanders.
2. Be sure to confirm all hose connections and hose clamps are
tight before each use. It is possible for connections to vibrate
loose over time.
3. Never leave the machine unattended with the power source
operating.
4. Never operate the machine when under the influence of
alcohol, drugs or medication.
5. The machine owner should instruct all operators in safe
chipper-shredder operation.
6. Always operate the chipper-shredder with all safety
equipment in place and all controls properly adjusted for safe
operation.
7. Always operate the chipper-shredder at manufacturer’s
recommended speed.
8. Always keep hands and feet clear of moving parts.
9. When loading the chipper-shredder, never place your hands
inside or on the sides of the chutes, chambers, or intake.
Never place your hands or any part of your body between the
material and any part of the chipper-shredder.
–Never attempt to chip more than one (1) branch at a time,
this may cause the chute, chamber or intake to become
clogged.
–Never attempt to use your hand, foot or any body part to
unclog the chipper-shredder.
–Only attempt to unclog with a small diameter stick that can
get chipped.
–If a major clog occurs; turn the fuel valve off and let the
unit run until dry, turn off the engine, let the unit cool down,
unplug the spark plug wire and take apart the unit to see
where the clog has occurred. Remove clog before further
operation.
10. Only chip branches 3 in. (7.6 cm) or less in diameter.
11. Only shred bushes, shrubbery, leaves, etc. with branches
1/2 in. (1.3 cm) or less in diameter.
12. Only shred dry or slightly damp material. Never attempt to
shred material that is wet, as this may cause clogging to
occur.
13. Use only your hand to operate the chipper-shredder controls.
14. Do not refuel the engine until it has cooled for several
minutes.
Maintenance, Transport and Storage
1. Always shut off the power source and disconnect the spark
plug wire and ground the engine while repairing or adjusting
the unit.
2. Clean debris, shrubbery and chaff from the engine cylinder,
cylinder head fins, blower house rotation screen, and muffler
areas. If the engine is equipped with a spark arrestor muffler,
clean and inspect it regularly (follow manufacturer’s service
instructions). Replace, if damaged.
3. Never store the unit (with fuel) in an enclosed poorly
ventilated structure. Fuel vapors can travel to an ignition
source (such as a furnace, water heater, etc.) and cause an
explosion. Fuel vapor is also toxic to humans and animals.
4. Clear debris from movable parts, but only when the engine is
off, the fuel valve is in the “OFF” position, and the spark plug
wire is disconnected.
5. Check to be sure all nuts and bolts are tight to assure the
equipment is in safe working condition.
6. Always use the shredder hopper handle and built-in wheels
to move the chipper shredder. Never lift the unit using the
fuel tank for support. If the unit must be lifted , always use at
least two people, and always grip the unit securely using the
front leg and shredder hopper handle.
7. Always follow the engine instructions for storage preparations
before storing the unit for both short and long term periods.
8. Always ensure that the fuel tank is empty before transporting
the unit in a vehicle.
9. Always transport the unit in the upright position on the
wheels and support leg.

8
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER IMPORTANT SAFETY INSTRUCTIONS
Front
Safety and Dataplate Labels
These labels warn you of potential hazards that can cause serious injury. Read them carefully.
If a label comes off or becomes hard to read, contact Technical Support Team for possible replacement.
LABEL DESCRIPTION
A
LOW OIL SHUT-OFF
TAPA DE LLENADO DE ACEITE
REVISA Y LLENA EL NIVEL DEL ACEITE DEL MOTOR.
198X240mm
270cc-389cc_GC10_type_engine_label-ENG_SPA-7-31-15.pdf 1 2020/10/21 15:11
Multiple Danger and
Warning Label
B
UNLEADED FUEL ONLY. Minimum octane rating
of 91. Maximum 10% ethanol.
GASOLINA REGULAR SOLAMENTE. 91 octanos
como mínimo. Máximo de etanol de 10%.
ESSENCE SANS PLOMB SEULEMENT. Indice
d’octane minimal de 91. Maximum 10 % d'éthanol.
K109 --- --- ---
ColorsLPN
Rev
Size 78 x 20 mm
Artwork Notes
3mm corner radius; 2mm safe margin
Revision Changes
B: -Changed Octane rating from 85 to 87 (20200421)
This artwork belongs to Champion Power Equipment. The contents are confidential and privileged and shall not be disclosed to or used by or for
outside parties without the explicit consent of Champion Power Equipment.
Fuel
C
MANUFACTURE DATE
DATE DE FABRICATION
SERIAL NO.
N° DE SÉRIE
MODEL
MODÉLE 500137-N
Hitchon International Ltd.
32 Hammersmith Drive, Wigram,
Christchurch 8042, New Zealand
MADE IN CHINA / FABRIQUÉ EN CHINE
XXXXXXXXXXXX
XXXX
K--- --- --- ---
ColorsLPN
Rev
Size 51 x 32 mm
Artwork Notes
3mm corner radius; 2mm safe margin; to be printed
on security substrate
Revision Changes
---
This artwork belongs to Champion Power Equipment. The contents are confidential and privileged and shall not be disclosed to or used by or for
outside parties without the explicit consent of Champion Power Equipment.
Dataplate
A
B
C

9
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER IMPORTANT SAFETY INSTRUCTIONS
Operation Symbols
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these
symbols will allow you to more safely operate the product.
SYMBOL MEANING
Throttle: Full Speed
Throttle: Low Speed
Quickstart Label Symbols
Some of the following symbols may be used on this product. Please study them and learn their meaning. Proper interpretation of these
symbols will allow you to more safely operate the product.
Starting the Engine
DANGER
Move chipper-shredder outside and far away from
windows, doors and intake ventilation covers.
1. Check oil level.
Recommended oil is 10W-30.
2. Move the fuel valve to the “OPEN” position.
3. Press the engine switch to the “ON” position.
4. Move the choke lever to the “CHOKE” position.
5. Pull the starter cord.
6. Move the choke lever to the “RUN” position.
SYMBOL MEANING
CHOKE: left position
RUN: right Position
Fuel Lever
ON: left position
OFF: right Position
3194-L-OP-A
1
10W-30

21
2
3
4 65
K376 485 152 CG1
ColorsAPN 3627-L-OP
Rev A
Size 120 x 35.5 mm
Artwork Notes
3mm corner radius; 2mm safe margin; to be printed
on
WHITE substrate.
Revision Changes
This artwork belongs to Champion Power Equipment. The contents are confidential and privileged and shall not be disclosed to or used by or for
outside parties without the explicit consent of Champion Power Equipment.
Stopping the Engine
1. Move the fuel valve to the “CLOSED” position.
2. Press the engine switch to the “OFF” position.

10
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER CONTROLS AND FEATURES
CONTROLS AND FEATURES
Read this operator’s manual before operating your chipper-shredder. Familiarize yourself with the location and function of the controls and
features. Save this manual for future reference.
Chipper Shredder
1. Throttle
2. Choke
3. Engine – 338cc, OHV, 4-stroke, air cooled.
4. Upper Shredder Chute – place shreddable material in this
chute.
5. Lower Shredder Chute
6. Handle
7. Chipper Chute – place chippable material in this chute.
8. Wheels – 12 in. (30.5 cm) never flat.
9. Collection Bag – 2 Bushels (70 L) - Attach to chute deflector
to collect material.
10. Chute Deflector – chipped or shredded material will exit
from this.
11. Support Leg with Vibration Mounts – used to help stabilize
the unit.
12. Flail Housing – housing for chipper-shredder blades.
6
8
7
10
11
4
12
5
3
1
2
9
Parts Included
Accessories
Collection Bag - 2 Bushel (70 L) Capacity ........................1
Oil Funnel...........................................................1
Spark Plug Wrench.................................................1

11
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER ASSEMBLY
ASSEMBLY
Your chipper-shredder requires some assembly. This unit ships
from our factory without oil. It must be properly serviced with fuel
and oil before operation.
If you have any questions regarding the assembly of your chipper-
shredder, call our Technical Support Team . Please have your
serial number and model number available.
Unpacking
1. Set the shipping crate on a solid, flat surface
2. Carefully cut the shipping bands and remove lid of shipping
crate.
3. Locate all hardware before beginning assembly.
1) Install the Shredder Chute
1. Align the holes in the upper shredder chute (D) with the holes
in the lower shredder chute (E). (I)
I
D
A
B
C
E
II
2. Insert M6x15 bolt (C) into the hole of the chutes, from top to
bottom direction. (II)
3. Secure bolt with washer (A) and lock nut (B).
4. Tighten till secure. Do not over tighten.
5. Repeat step 2-4 for all holes in the chutes.
NOTICE
Make sure chutes are fully secured with all the holes aligned
and filled with bolts. If parts are damaged or missing do not
use the unit until replacement parts have been obtained.
2) Install the Handle
1. Insert handle (A) into the brackets on the lower shredder
chute.
2. Secure the handle with the M8x35 bolt (C), lock washer (D)
and washer (B), and then through the handle on each side.
NOTICE
Handle has a threaded and unthreaded hole on each end.
Threaded hole goes on the hopper side. This will allow the bolt
to tighten properly when assembled.
3. Tighten until secure. Do not over tighten.
Handle
A
B
C
D
Threaded hole
Unthreaded hole
3) Install the Chipper Chute
1. Remove bolt used to secure the support bracket to chute.
NOTICE
Only remove bolt, leave bracket in position.
2. Line up the upper chipper chute (A) with the rubber blocker
(C), and with the lower chipper chute (F). (I)
3. Once aligned, insert bolt (qty. 4) M6x20 (B) and bolt (qty. 1)
M6x25 (G) through the hole in the upper and lower chipper
chute (Being sure to re-attach support bracket to chute
assembly). Insert bolt from top to bottom direction. (II)
4. Secure bolt with washer (D) and lock nut (E). (II)
5. Tighten till secure. Do not over tighten.
6. Repeat step 2-4 for all holes in the chutes.

12
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER ASSEMBLY
I
A
B
C
D
E
F
G
D
E
II
WARNING
Make sure the rubber blocker (C) is secure between the top
and bottom chutes. Do not operate unit if blocker is damaged
or missing.
4) Install the Chute Deflector
1. Align the chute deflector (B) and the hinge spacers (C) up with
the hinge mounting holes on the flailing housing. (I)
2. Slide bolt M6x100 (A) through the hinge mounting holes,
hinge spacers, and chute deflector.
3. Secure with lock nut (D). Tighten. Do not overtighten.
4. Slide knob bolt (F) through lock washer (E) and washer (G)
and then through chute deflector and lower flailing housing
assembly.
5. Tighten knob bolt. Do not overtighten.
6. Repeat for second knob bolt.
I
D
AB
C
F
E
G
II
Collection Bag
The collection bag can be attached and removed from the chute
deflector using the adjustable drawstring.
It is recommended to be attached before operation and removed
before completely full, after operation, or before storage. The
collection bag will collect up to 2 bushels (70 L) of material.
WARNING
Before operation, ensure the adjustable drawstring is tight
around the chute deflector and secure.
WARNING
When the collection bag appears to be almost full, it is
recommended to empty it. This will help to keep the bag from
becoming dislodged from the deflector chute and will also
prevent the bag from bursting. Do not allow the collection
bag to become dislodged from the deflector chute during
operation. If this occurs, stop operation at once and reconnect
the collection bag. Always empty the collection bag when the
engine is off and the spark plug has been disconnected.
NOTICE
Always inspect the collection bag prior to use. Do not use a
frayed, worn, or damaged collection bag.
Add Engine Oil
CAUTION
DO NOT attempt to crank or start the engine before it has been
properly filled with the recommended type and amount of oil.
Damage to the engine as a result of failure to follow these
instructions will void your warranty.
NOTICE
The recommended oil type is 10W-30 automotive oil.
1. Place the chipper-shredder on a flat, level surface.
2. Remove oil fill cap/dipstick to add oil.
3. Using a funnel, add up to 37.2 fl. oz. (1100 ml) of oil (not
included) and replace oil fill cap/dipstick. DO NOT OVERFILL.
4. Check engine oil level before every use and add as needed.

13
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER ASSEMBLY
MAX
OIL DIP STICK
NOTICE
Once oil has been added, a visual check should show oil about
1-2 threads from running out of the fill hole.
If using the dipstick to check oil level, DO NOT screw in the
dipstick while checking.
NOTICE
Check oil often during the break-in period. Refer to the
Maintenance section for recommended service intervals.
CAUTION
The engine is equipped with a low oil shut-off and will stop
when the oil level in the crankcase falls below the threshold
level.
NOTICE
We consider the first 5 hours of run time to be the break-
in period for the engine. During the break in period we
recommend using standard automotive non-synthetic blended
oils. After the break in period synthetic lubricant can be used
but is not required. Avoid bogging or lugging the engine down
and avoid prolonged running at constant RPM. After the 5 hour
break-in period, change the oil.
NOTICE
Synthetic oil may be used after the 5 hour initial break-
in period. Using synthetic oil does not decrease the
recommended oil change interval. Full synthetic 5W-30 oil will
aid in starting in cold ambient < 41º F (5º C).
-20 020 40 60
Ambient temperature
Recommended Engine Oil Type
80 100 120
-28.9
°F
°C -17.8 -6.7 4.4 15.6 26.7 37.8 48.9
10W-30
5W-30 Full Synthetic
10W-405W-30
NOTICE
Weather will affect engine oil and engine performance. Change
the type of engine oil used based on weather conditions to suit
the engine needs.
Add Fuel
DANGER
Gasoline vapors are highly flammable and extremely explosive.
DO NOT light or smoke cigarettes. Fire or explosion can cause
severe burns or death.
Only fill or drain fuel outdoors in a well-ventilated area. DO
NOT pump gasoline directly into the chipper shredder. Use an
approved container to transfer the fuel to the chipper shredder.
Never use a gasoline container, gasoline tank, or any other fuel
item that is broken, cut, torn or damaged.
DO NOT overfill the gasoline tank. Always keep fuel away from
sparks, open flames, pilot lights, heat and other sources of
ignition.
Use clean, fresh, regular unleaded gasoline with a minimum
octane rating of 91 and an ethanol content of 10% or less by
volume. ybc
DO NOT mix oil with gasoline.
1. Remove the gasoline cap.
2. Slowly add gasoline to the tank. Tank is full when gasoline
reaches red circle on screen. DO NOT OVERFILL. Gasoline
can expand after filling. A minimum of ¼ in. (6.4 mm) of
space left in the tank is required for gasoline expansion,
although more than ¼ in. (6.4 mm) is recommended. Gasoline
can be forced out of the tank as a result of expansion if
overfilled, and can affect the stable running condition of the
chipper shredder
3. Screw on the fuel cap and wipe away any spilled fuel.

14
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER OPERATION
CAUTION
Use unleaded gasoline with a minimum octane rating of 91
and an ethanol content of 10% or less by volume.
DO NOT light cigarettes or smoke when filling the tank.
DO NOT mix oil and gasoline.
DO NOT overfill the tank. Fill tank to approximately ¼ in.
(6.4 mm) below the top of the tank to allow for gasoline
expansion.
DO NOT pump gasoline directly into the chipper shredder
at the pump. Use an approved fuel container to transfer the
gasoline to the chipper shredder.
DO NOT fill tank indoors.
DO NOT fill tank when the engine is running or hot.
WARNING
Pouring gasoline too fast through the fuel screen may result
in gasoline splashing over the chipper shredder and operator
while filling.
NOTICE
The chipper shredder engine works well with 10% or less
ethanol blended gasoline. When using ethanol-gasoline blends
there are some issues worth noting:
–Ethanol-gasoline blends can absorb more water than
gasoline alone.
–These ethanol blends can eventually separate, leaving
water or a watery goo in the tank, fuel valve and
carburetor. The compromised gasoline can be drawn
into the carburetor and cause damage to the engine
and/or create potential hazards.
–If a fuel stabilizer is used, confirm that it is formulated
to work with ethanol-gasoline blends.
–Any damages or hazards caused by using ethanol
blended gasoline higher than 10% by volume,
improperly stored gasoline, and/or improperly
formulated stabilizers, are not covered by
manufacturer’s warranty.
It is advisable to always shut off the gasoline supply and
run the engine to starvation after each use. See Storage
instructions for extended non-use.
OPERATION
Chipper-Shredder Location
Never operate the chipper-shredder indoors or inside any confined
spaces, enclosures or buildings; including garages, basements,
and sheds. The chipper-shredder must have at least 5 ft. (1.5 m)
of clearance on all sides from combustible materials at all times.
The chipper-shredder must also have 3 ft. (91.4 cm) or more of
clearance on all sides of the at all times to allow for adequate
cooling, maintenance and servicing. Chipper-shredders should
never be started or operated in the bed of a truck (regular, flat or
otherwise), under staircases/stairwells, next to walls or buildings,
or in any other location that will not allow for adequate cooling
of the unit and/or the muffler, or adequate safety to the operator,
assistants, or bystanders. Place the chipper-shredder in a well-
ventilated area. DO NOT place the chipper-shredder near vents
or intakes where exhaust fumes could be drawn into occupied
or confined spaces. Carefully consider wind and air currents
when positioning the unit. Allow the unit to properly cool before
transport or storage. The chipper-shredder needs to be on a dry
level surface with good footing. (Even while not in operation) DO
NOT work on mud, ice, tall grass, brush or snow. DO NOT work on
asphalt, brick, rock, concrete or other harden surfaces. DO NOT
position the unit next to or facing any buildings, walls or fences,
that could cause any projectiles to ricochet back at the operator or
bystanders.
WARNING
During operation the muffler and exhaust fumes produced will
become hot. If adequate cooling and breathing space are not
supplied, or if the chipper-shredder is blocked or contained,
temperatures can become extremely heated and may lead to
fire.
Work Area
Before each use, always inspect the chipper shredder for damaged
or loose parts and always operate the chipper-shredder outdoors
in a large, open area on solid ground that will allow for good
footing and ventilation. To prevent injury, always keep a clear area
around the chipper-shredder at all times. Always ensure no pets,
children or bystanders are in the immediate or surrounding areas
at any time. Debris and projectiles can be launched within a
75 ft. (22.9 m) in diameter in all directions surrounding the
chipper-shredder. Assistants must also be out of the immediate
and surrounding areas while chipping or shredding is being
performed. The operator must be in the “Safe Zone” at all times
when the spark plug wire is connected and/or the engine is on.

15
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER OPERATION
S
U
R
R
O
U
N
D
I
N
G
A
R
E
A
Up to
75 ft.
(22.9 m)
Up to
75 ft.
(22.9 m)
Up to 75 ft.
(22.9 m)
SAFE ZONE
Up to
75 ft.
(22.9 m)
Up to
75 ft.
(22.9 m)
Up to 75 ft.
(22.9 m)
Up to 75 ft.
(22.9 m)
DANGER
Never stand directly in front of the chipper chute or deflector
chute. Do not lean over or reach across the shredder chute.
Debris and projectiles may be discharged through these areas
and may cause damage or injury.
Before Each Use Inspect the
Chipper-Shredder
1. Always make sure the spark plug wire has been disconnected
and engine has been grounded.
2. Always visually inspect all attachments and chutes for loose
fittings, cracks, fraying or other damage.
3. DO NOT operate the chipper-shredder if there is any
indication of damage to parts or the unit.
4. DO NOT operate the chipper-shredder if there are any clogged
chutes. Remove all debris before operation.
5. Always inspect the engine and make sure the oil level and
fuel level are correct before operating.
6. Always clean and inspect the spark arrestor regularly (follow
spark arrestor maintenance schedule).
7. Always inspect the collection bag for any fraying, holes or
damage. Never use a damaged collection bag.
8. Always inspect the work area for any distractions or factors
that may prevent operator safety or proper operation.
DANGER
DO NOT operate a damaged chipper-shredder, or one with
damaged or loose parts. Operating a damaged unit or one with
loose parts may cause damage to the product or injury to the
user. Make sure all parts are in good condition and secure
before operation.
Starting the Engine
1. Make certain the chipper-shredder is on a flat, level surface.
2. Re-attach the spark plug wire to the spark plug. Make sure
the connection is secure.
3. Press engine switch to “ON” position. (A)
4. Turn the fuel valve to the “ON” position. (B)
5. Move the throttle level to the middle position. (C)
6. Move the choke lever to the “CHOKE” position. (D)
7. Pull the starter cord slowly until resistance is felt and then
pull rapidly. SEE NOTE BELOW.
8. As engine warms up, move the choke lever to “RUN.” (D)
9. Move the throttle lever to the “FAST” position. (C)
B
C
D
A
NOTICE
Keep choke lever in “CHOKE” position for only 1 pull of the
recoil starter. After first pull, move choke lever to the “RUN”
position for up to the next 3 pulls of the recoil starter. Too
much choke leads to spark plug fouling/engine flooding due to
the lack of incoming air. This will cause the engine not to start.
NOTICE
If the engine starts but does not run make certain that the
chipper-shredder is on a flat, level surface. The engine is
equipped with a low oil sensor that will prevent the engine
from running when the oil level falls below a critical threshold.

16
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER OPERATION
NOTICE
Pulling the recoil cord will spin the impeller and this will make
noises. These noises are normal and should be made as the
cord is pulled and the impeller spins.
Chipper-Shredder Operation
DANGER
This machine has rotating blades and parts capable of
amputating body parts. This machine can also throw objects
at high velocity and long distances. Exercise extreme caution
when operating the chipper-shredder. NEVER insert body parts
or foreign object into any chute at any time. Never look directly
into any chute, as projectiles can backfire.
1. ALWAYS wear ear and eye protection, protective shoes and
clothing.
2. Block tires and put both support mounts in the DOWN
position to prevent unintended movement of the chipper-
shredder during operation.
3. Tie back long hair. Do not wear loose fitting clothing or
jewelry.
4. Make sure surrounding and immediate and safe zones are
clear of distractions and debris.
5. Do not attempt to chip or shred material that is larger than
specified. This may damage the unit or cause injury.
6. Make sure the materials that are going to be chipped or
shredded are free of any rocks, trash, metals and other
foreign objects.
7. Make sure wood to be chipped has been “trimmed” down
and do not have any excessive branches.
8. Make sure wood to be chipped or leaves/brush to be
shredded are not “wet” as this may clog the chutes.
9. Keep all chutes, deflectors and guards assembled and in
place at all times.
DANGER
If the impeller or blades strike a foreign object, stop engine
immediately. Do not continue use until chutes and unit have
been thoroughly inspected. Do not attempt to unclog any jam
or chute while engine is on or spark plug wire is connected.
WARNING
ALWAYS use the chipper-shredder for its intended uses only.
The chipper-shredder should only be used to chip branches
3 in. (7.6 cm) or less in diameter, or to shred leaves and brush.
DO NOT chip anything that is larger than 3 in. (7.6 cm) in
diameter.
NEVER modify, alter or change the chipper-shredder design in
anyway. Unauthorized modifications will void the warranty and
may result in damage or injury.
DO NOT modify or change the engine and operating speeds.
Making these unauthorized changes is a Federal violation,
will void your warranty and will create safety performance
conditions.
ONLY operate the chipper-shredder in daylight.
NEVER operate, or let anyone else operate, the chipper-
shredder while under the influence of alcohol, drugs, or
medication.
NEVER leave the chipper-shredder unattended while the
engine is running. Avoid contact with the muffler, as it can
cause serious burns.
NOTICE
Always be aware of who and what is in the immediate and
surrounding areas of the chipper-shredder. Operators should
always work in the SAFE ZONE only.
Chipping and Shredding Tips
Chipping
1. Make sure wood is less than 3 in. (7.6 cm) in diameter.
2. Make sure wood is dry.
3. Make sure all smaller branches have been pruned for the
wood.
4. Make sure pieces are long enough to be fed through the
chute.
5. Large pieces can be rotated and alternately inserted and
retracted as they are fed.
6. Always maintain control with two hands of what is being fed,
to prevent “whipping” around.

17
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER OPERATION
7. Standing in the safe zone will prevent any damage or injury if
a piece is kicked back out of the chipper chute.
WARNING
Never insert pieces larger than 3 in. (7.6 cm) in diameter as
this may cause damage or injury.
Small pieces may be fed carefully using a larger piece. Never
insert smaller pieces using your hands.
If larger pieces will not chip, get pushed backed by the chipper,
or can not be controlled, remove at once.
Never feed more than one branch or piece of wood into the
chipper chute at a time.
Shredding
1. Inserting smaller loads at a time will prevent overloading of
the chute.
2. Make sure material is dry.
3. Make sure material is free of trash, metal, rocks, and foreign
objects.
4. Air flow will draw loads into the shredder hopper, pushing or
shoving the loads is not necessary.
5. Branches larger than 1/2 in. (1.3 cm) in diameter are not
recommended, as they can damage the blades.
6. Vines are not recommended as they can clog or damage the
blades.
WARNING
Never insert any item into the shredder hopper to “assist” in
the feeding of any load.
Never insert wet material into the shredder hopper. If material
is “damp” then alternate with dry loads to prevent clogging.
NOTICE
After all material has been processed it is recommended that
the unit run for short period of time to clear out any left over
material that may still be in the chutes or flail housing.
Clearing the Shredder Hopper
If the shredder hopper gets slightly clogged, then firmly grasp the
handle and gently rock the unit back and forth to try and dislodge
or shift the material that may be causing the clog. This may help
to loosen and draw the material better into the flail housing and
impeller. If slightly rocking the unit fails then:
1. Stop the engine.
2. Turn the fuel valve to the “OFF” position.
3. Disconnect the spark plug wire.
4. Using your hands, remove the material that is still atop the
shredder hopper. DO NOT stick your hands in the shredder
hopper, only remove the material on top.
5. Using a branch, or other piece of wood less than 1/2 in.
(1.3 cm) in diameter try and dislodge the material.
6. Once cleared, remove the branch, reconnect the spark plug
wire, turn the fuel valve “ON,” and restart the engine.
NOTICE
If the clog appears to be serious, then shut the engine off,
disconnect the spark plug wire, and allow the unit to cool
before draining the fuel and opening the access panel to the
impeller housing to remove the clogged material.
Emptying the Collection Bag
1. Turn the throttle down to the “SLOW” position.
2. Stop the engine.
3. Turn the fuel valve to the “OFF” position.
4. Disconnect the spark plug wire.
5. Using your hands, release the draw string on the collection
bag.
6. Remove the collection bag from the deflector chute and
empty bag.
7. Once emptied, reconnect the collection bag by pulling the
draw string tight, then reconnect the spark plug wire, turn the
fuel valve “ON,” and restart the engine.
NOTICE
Do not let the collection bag fill to capacity before emptying. It
is recommended to empty the bag before it fills completely to
minimize damage to the bag.
Stopping the Engine
1. Turn the throttle down to the “SLOW” position.
2. Turn the fuel valve to the “OFF” position.
3. Let the engine run until fuel starvation has stopped the
engine. This usually takes a few minutes.
4. Press the engine switch to the “OFF” position.
5. Disconnect spark plug wire.
Important: Always ensure that the Fuel Valve and the Engine
Switch are in the “OFF” position when the engine is not in use.

18
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER MAINTENANCE
NOTICE
If the engine will not be used for a period of two (2) weeks or
longer, please see the Storage section for proper engine and
fuel storage.
NOTICE
As the engine shuts off and the blades wind down, some
noises in the flail housing can be made, these are normal, but
any weird noises may be damage and if these occur the unit
should be inspected.
Operation at High Altitude
The density of air at high altitude is lower than at sea level. Engine
power is reduced as the air mass and air-fuel ratio decrease.
Engine power and chipper-shredder output will be reduced
approximately 3½% for every 1000 ft. of elevation above sea
level. This is a natural trend and cannot be changed by adjusting
the engine. At high altitudes increased exhaust emissions can
also result due to the increased enrichment of the air fuel ratio.
Other high altitude issues can include hard starting, increased fuel
consumption and spark plug fouling.
To alleviate high altitude issues other than the natural power
loss, CPE can provide a high altitude carburetor main jet. The
alternative main jet and installation instructions can be obtained
by contacting our Technical Support Team. Installation instructions
are also available in the Technical Bulletin area of the CPE website.
The part number and recommended minimum altitude for the
application of the high altitude carburetor main jet is listed in the
table below.
In order to select the correct high altitude main jet it is necessary
to identify the carburetor model. For this purpose, a code is
stamped on the side of the carburetor. Select the correct high
altitude jet part number corresponding to the carburetor code
found on your particular carburetor.
Carb. Code High Alt. Jet Part Number Min. Altitude
P23-1-Z 46.131017.01.01.Z 4500 ft.
(1372 m)
P23-1-H 46.131017.01.01.H
P23-1-Y 46.131017.01.01.Y
WARNING
Operation using the alternative main jet at elevations lower
than the recommended minimum altitude can damage the
engine. For operation at lower elevations, the originally
supplied standard main jet must be used. Operating the
engine with the wrong engine configuration at a given altitude
may increase its emissions and decrease fuel efficiency and
performance.
MAINTENANCE
DANGER
Always disconnect the spark plug wire during times of
inactivity, cleaning and maintenance. This will prevent any
accidental start up that may cause damage or injury.
WARNING
Never operate a damaged or defective chipper-shredder.
WARNING
Improper maintenance will void your warranty.
NOTICE
For Emission control devices and systems, read and
understand your responsibilities for service as stated in the
Emission Control Warranty Statement of this manual.
The owner/operator is responsible for all periodic maintenance.
Complete all scheduled maintenance in a timely manner.
Correct any issue before operating the chipper shredder.
For service or parts assistance, contact our
Technical Support Team at .
Engine Maintenance
To prevent accidental starting, remove and ground spark plug wire
before performing any service.
Changing the Engine Oil
Change oil when the engine is warm. Refer to the oil specification
to select the proper grade for your operating environment.
1. Remove the oil drain plug with a 15 mm socket and
extension. (Not included)
2. Allow the oil to drain completely.
3. Replace the drain plug.

19
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER MAINTENANCE
4. Remove oil fill cap/dipstick to add oil.
5. Add up to 37.2 fl. oz. (1100 ml) of oil and replace oil fill cap/
dipstick. DO NOT OVERFILL.
6. Dispose of used oil at an approved waste management
facility.
DRAIN BOLT
NOTICE
Once oil has been added, a visual check should show oil
about 1-2 threads from running out of the fill hole. If using the
dipstick to check oil level, DO NOT screw in the dipstick while
checking.
WARNING
Used oil is a hazardous waste product and must be disposed
of properly. Do not discard with household waste. Check
with your local authorities, service center, or dealer for safe
disposal/recycling facilities.
Cleaning and Adjusting the Spark Plug(s)
1. Remove the spark plug cable from the spark plug.
2. Use a spark plug socket (not included) to remove the plug.
3. Inspect the electrode on the plug. It must be clean and not
worn to produce the spark required for ignition.
4. Make certain the spark plug gap is 0.028 - 0.031 in.
(0.7 - 0.8 mm).
SPARK PLUG GAP
5. Refer to the spark plug section on the Specifications page
when replacing the plug.
6. Carefully thread the plug into the engine.
7. Use a spark plug socket (not included) to firmly install the
plug.
8. Attach the spark plug wire to the plug.
Clean the Air Filter
1. Unscrew wing nut to remove the air filter cover.
2. Remove the supporter and foam element.
3. Tap the foam element to remove dirt and debris. Use
compressed air (25 PSI) to clear debris.
4. For the foam element: Wash in liquid detergent and water.
Squeeze thoroughly dry in a clean cloth.
5. Saturate in clean engine oil.
6. Squeeze in a clean, absorbent cloth to remove all excess oil.
7. Reassemble the elements and the supporter.
8. Reattach the air filter cover and snap in place.
9. Tighten wing nuts.
Chipper-Shredder Maintenance
Make certain that the chipper-shredder is kept clean and stored
properly. Only operate the unit on a flat, level surface in a clean,
dry operating environment. DO NOT expose the unit to extreme
conditions, excessive dirt, moisture or corrosive vapors.
Inspect all engine air vents and cooling slots to ensure that they
are clean and unobstructed.
Inspect all chutes and housing and make sure they are free of dirt,
and debris.
Check and tighten all bolts and nuts. It is possible for connections
to vibrate loose over time.
Cleaning the Chipper-shredder
CAUTION
DO NOT use a garden hose or water to clean the engine or
chipper-shredder.
Water can contaminate the fuel system and can enter the
engine through the cooling slots and damage the engine.
Clear the debris from the chutes and engine. Use a damp cloth to
clean exterior surfaces of the engine and chipper-shredder.
Use a soft bristle brush to remove excess dirt and oil. Use an air
compressor (25 PSI) to clear dirt and small debris.
Wipe all metal parts with an oily rag to help prevent rust and
corrosion.

20
500137-N - 3 IN. (7.6 CM) CHIPPER SHREDDER MAINTENANCE
Flail Housing and Impeller Cleaning
1. Make sure spark plug wire is disconnected.
2. Disconnect the recoil housing on the front of the engine.
3. Disconnect the deflector chute. (I)
4. Disconnect the upper and lower hopper assemblies, the inlet
guide and the outer flail housing assembly (B), all together. (II)
5. Disconnect the shredder screen (A). (III)
6. Use compressed air (25 PSI) or brush to clean the inner
flail housing assembly, impeller assembly, flail blades, and
shredder blades.
7. Once all debris and dust has been blown out or removed,
reconnect the shredder screen, outer flail housing, inlet guide,
hopper assemblies, and the deflector chute, making sure all
bolts and nuts are tightened. Do not over tighten.
B
A
II
III
I
WARNING
Do not use the chipper-shredder if any part is lost or damaged
while cleaning. Get lost or damaged parts replaced before use.
Do not use the chipper-shredder if any part is loose, not fitting
correctly or not fully re-assembled.
Blade Sharpening
Sharpening of the shredder blade, flail blades and chipper blades
are required maintenance to be performed by a professional
service center or knowledgeable and experienced owners
only. Sharpening of the blades will keep the chipper-shredder
performing at a higher quality than with dull blades. Sharp
blades will chip or shred material faster and easier, and cause
the engine and other parts to work less. Blades are not covered
under warranty as they are a wear item, and therefore should be
sharpened regularly to keep their edge and to ensure a longer life
of the blades, other parts and engine.
1. Make sure spark plug wire is disconnected.
2. Disconnect the recoil housing on the front of the engine.
3. To get to the blades and impeller, the outer flail housing
assembly (B) must be removed. The steps in the flail housing
and impeller cleaning section should be followed to remove it
and the shredder screen (A). (I)
B
A
I
4. Once the outer flail housing and shredder screen are
removed, remove the 7/16 screw (C), 7/16 lock washer (D)
and washer ø12 (E) from the engine cam shaft. (II)
5. DO NOT remove the flat key (F) when removing the screw,
washers.
F
E
D
C
II
6. Once the 7/16 screw, lock washer, and washer are removed,
the impeller (J) can be removed from the cam shaft of the
engine.
7. Removing the impeller will make it easier to remove and
sharpen the shredder blade, flail blades, and chipper blades.