Bearcat 71020 User manual

5" CHIPPER/SHREDDERS
OWNER'S MANUAL
Manual PN 16023
Rev. 0203
Companion to 12142
MODELS
71020
70554

P HONE
How to Contact
Bear Cat
M-F, 8 a.m. to 5
p.m. Central Time
Crary Bear Cat
237 NW 12th Street
PO Box 849
West Fargo, ND 58078
800-247-7335
701-282-5520
Fax: 701-282-
9522
A DDRESS
H OURS
DEAR BEAR CAT CUSTOMER,
Thank you for purchasing a Crary ear Cat product. The ear Cat line is designed, tested, and
manufactured to give years of dependable performance. To keep your machine operating at
peak efficiency, it is necessary to adjust it correctly and make regular inspections. The following
pages will assist you in the operation and maintenance of your machine. Please read and
understand this manual before operating.
If you have any questions or comments about this manual, please call us toll-free at 1-800-247-
7335.
If you have any questions or problems with your machine, please call or write your local
factory-authorized ear Cat dealer.
PLEASE SEND US YOUR WARRANTY CARD
A warranty card is included in your owner's kit packaged with your machine. Please take the
time to fill in the information requested on the card. When you send your completed card to us,
we will register your machine and start your coverage under our limited warranty.
E MAIL
[e-mail]
[e-mail]
Before you Begin
71020 & 70554 Chipper Shredder Operators Manual
I
WARNING TO ALL CALIFORNIA
AND OTH R STAT S OP RATING
OUTDOOR POW R QUIPM NT
Under California Law and under the
laws of several other states you are
not permitted to operate an internal
combustion engine using hydrocarbon
fuels on any forest covered, brush
covered or grass covered land or on
land covered with grain hay or other
EMISSION INFORMATION
WARNING flammable agricultural crop, without an
engine spark arrester in continuous
effective working order.
The engine on your power equipment,
like most outdoor power equipment, is
an internal combustion engine that
burns gasoline, a hydrocarbon fuel.
Therefore, your power equipment must
be equipped with a spark arrester
muffler in continuous effective working
order. The spark arrester must be
attached to the engine exhaust system
in such a manner that flames or heat
from the system will not ignite
flammable material.
Failure of the owner/operator of the
equipment to comply with this
regulation is a misdemeanor under
California law, and may also be a
violation of other state and or federal
regulations, laws, ordinances, or
codes. Contact your local fire marshal
or forest service for specific information
about what regulations apply in your
area.
The standard muffler installed on the
engine is not equipped with a spark
arrester. One must be added before
use if this machine is intended to be
used in an area where a spark arrester
is required by law. Contact the local
authorities if these laws apply to you.
See your authorized engine dealer for
spark arrester options.

71020 & 70554 Chipper Shredder Operators Manual II
Crary Company
A Division of TerraMarc Industries
237 12th St. NW  P.O. Box 849
West Fargo, ND 58078-0849
[phone]  FAX: [phone]
www.bearcatproducts.com
www.terramarc.com
LIMITED WARRANTY
Crary ear Cat products are warranted for two years from the date of sale to the original cumsumer purchaser
and 90 days from the date of sale to a commercial or rental operation. The engine is warranted by the original
manufacturer with the terms and limitations listed in the manufactures manual.
Within the above stated period, Crary Co. will replace any part(s) found to be defective in material and/or
workmanship, after the receipt of the part in our plant. Labor costs to replace these defective parts will be
paid at a Crary established labor rate and time allowed (flat rate) for repair. All transportation charges
incurred in shipping part(s) are the responsibility of the purchaser.
This warranty is void in the case of accidents, failure to perform normal maintenance, or failure to follow those
instructions listed in the service manual. This warranty is also in lieu of all other expressed warranties and
voids any implied warranty as to the merchantability or fitness of the product for a particular purpose and of
any other obligation on the part of Crary Co. Some states do not allow limitations on how long the implied
warranty lasts, so the above limitation may not apply to you.
This warranty applies only to parts or components which are defective, and does not cover necessary repair
due to normal wear, misuse, accidents, or lack of proper maintenance. This includes belts, pulleys, and
chipper blades. Regular routine maintenance of the unit to keep it in proper operating condition is the
responsibility of the owner.
All warranty repair reimbursable under the Crary Co. warranty must be performed by an authorized ear Cat
service dealer using ear Cat approved replacement parts. Repair or attempted repair by anyone other than
an authorized ear Cat service dealer is not reimbursable under the Crary Co. warranty. In addition, these
unauthorized repair attempts may result in additional malfunction, the correction of which is not covered by
warranty.
Crary Co. is not liable for indirect, incidental, or consequential damages in connection with the use of this
product including any cost or expense or providing substitute equipment or service during periods of malfunction
or non-use.
Some states do not allow the exclusion of incidental or consequential damages, so the above exclusion may
not apply to you. This warranty gives you specific legal rights. You may also have other rights which vary
from state to state.
e sure to note the chipper serial number in any correspondence with Crary Co. or any authorized ear Cat
dealer. The serial number is located on the rotor assembly cover.

Section Description Page
Contents
1.0 SAF TY .................................................................................................................................... 2
1.1 EFORE OPERATING .......................................................................................................... 2
1.2 OPERATION SAFETY ........................................................................................................... 3
1.3 MAINTENANCE AND STORAGE SAFETY ............................................................................ 4
1.4 PTO SAFETY ........................................................................................................................ 4
1.5 TOWING SAFETY ................................................................................................................. 5
1.6 ATTERY SAFETY ............................................................................................................... 5
1.7 SAFETY DECALS ................................................................................................................. 6
2.0 ASS MBLY .................................................................................................................................... 7
2.1 ASSEM LY TOWA LE MODELS ......................................................................................... 7
2.2 ASSEM LY PTO MODEL ..................................................................................................... 7
2.3 2000 RPM PTO MODELS ...................................................................................................... 7
2.4 INSTALLING THE ATTERY .................................................................................................. 8
3.0 CONTROLS .................................................................................................................................... 9
3.1 TOWA LE MODELS ............................................................................................................. 9
3.2 PTO MODELS ..................................................................................................................... 10
3.3 COMMON PARTS ............................................................................................................... 10
4.0 OP RATION .................................................................................................................................. 11
4.1 STARTING (TOWA LE MODEL) ......................................................................................... 11
4.2 STARTING (PTO MODEL) .................................................................................................... 11
4.3 SHREDDING ...................................................................................................................... 11
4.4 CHIPPING ........................................................................................................................... 12
4.5 STOPPING (TOWA LE MODELS) ...................................................................................... 12
4.6 STOPPING (PTO MODELS) ................................................................................................ 12
5.0 S RVIC AND MAINT NANC ................................................................................................................. 13
5.1 REMOVING DISCHARGE SCREEN .................................................................................... 14
5.2 SHARPENING CHIPPER LADES ...................................................................................... 14
5.3 CHIPPING LADE SHARPENING TIPS .............................................................................. 14
5.4 SETTING CHIPPING LADE CLEARANCE ......................................................................... 15
5.5 REPLACING SHREDDER KIT ............................................................................................. 16
5.6 CLEANING PLUGGED ROTOR (TOWA LE MODELS) ....................................................... 17
5.7 CLEANING PLUGGED ROTOR (PTO MODELS) ................................................................. 17
5.8 REMOVING ROTOR ............................................................................................................ 17
5.9 REPLACING DRIVE ELTS (TOWA LE MODELS) ............................................................ 17
5.10 REPLACING DRIVE ELTS (PTO MODELS) ..................................................................... 17
5.11 TRAILER SERVICE TIPS ................................................................................................... 18
5.12 ADDITIONAL SERVICE AND MAINTENACE TIPS. ............................................................ 18
5.13 SERVICE ACCESSORIES ................................................................................................ 18
6.0 TROUBL SHOOTING ............................................................................................................................... 19
6.1 GENERAL TROU LESHOOTING ........................................................................................ 19
7.0 SP CIFICATIONS .................................................................................................................................. 20
7.1 OLT TORQUE .................................................................................................................... 20

71020 & 70554 Chipper Shredder Owners Manual Page 1
SERIAL NUMBER LOCATION
Always give your dealer the serial num er of your Crary Bear Cat product when ordering parts, requesting service or any
other information.
Please record the serial num er in the space provided elow and on the warranty and registration card.
REPLACEMENT PARTS
Only genuine Bear Cat replacement parts should e used to repair the machine. Bear Cat replacement parts are availa le
from your Bear Cat dealer. To o tain prompt, efficient service, remem er to give the dealer the correct part description and
serial num er of the machine.
Please be sure to provide the following information:
1. The SERIAL NUMBER of your machine.
2. The PART NUMBER of the part.
3. The PART DESCRIPTION.
4. The QUANTITY needed.
Serial Number ___________________
Fig. #2, Serial number decal
YXXXXX
To prevent personal injury or property damage: Disen-
gage the source providing power to the machine and
make sure that all moving parts have come to a com-
plete stop, efore o taining serial num er, servicing,
adjusting or repairing.
WARNING
Serial Number Decal
Fig. #1, Serial decal location

71020 & 70554 Chipper Shredder Owners ManualPage 2
1.1 BEFORE OPERATING
1. Read this Owner / Operators
manual. Be completely familiar
with the controls and the proper
use of this equipment.
2. Before inspecting or servicing any
part of the machine, wait for all
parts to stop moving. Be aware that
rotating parts slow down gradually
after power is stopped.
3. Keep safety decals clean and leg-
i le. Replace missing or illegi le
safety decals.
4. Familiarize yourself with all of the
safety and operating decals on this
equipment and on any of its at-
tachments or accessories.
5. Do not allow children or any per-
son unfamiliar with the use of the
unit to use this machine.
6. Keep the area of operation clear of
all persons, particularly small chil-
dren. Keep ystanders at least
50 feet (15 meters) away from the
area of operation.
7. Do not run this equipment in an
enclosed area. Do not operate this
equipment in or near uildings,
windows, or air conditioners.
THE SAFETY ALERT SYMBOL
This is the safety alert sym ol. It is used in this Owner / Operators Manual and on your machine
to alert you to potential hazards.
Whenever you see this sym ol, read and o ey the safety message that follows it. Failure to o ey
the safety message could result in personal injury, death or property damage.
Indicates an imminently hazardous situation that, if not avoided, will result in
death or serious injury.
Indicates a potentially hazardous situation that, if not avoided, could result in
death or serious injury.
Indicates a potentially hazardous situation that, if not avoided, may result in
minor or moderate injury.
Section
1 Safety
8. If needed, always use an approved
fuel container. Keep open flames,
sparks, smoking materials, and
other sources of com ustion away
from fuel.
9. Do not operate this machine if you
are under the influence of alcohol,
medications, or su stances that
can affect your vision, alance, and
judgement. Do not operate if tired
or ill. You must e in good health
to operate this machine safely.
DANGER
WARNING
CAUTION

71020 & 70554 Chipper Shredder Owners Manual Page 3
Safety
10. Use only in daylight or good artifi-
cial light.
11. Wear safety glasses at all times
while operating this machine.
BEFORE OPERATING
12. Never use without proper guards
in place.
13. Avoid wearing loose fitting cloth-
ing. Never operate this machine
wearing clothing with drawstrings
that could wrap around or get
caught in the machine.
14. Check that all screws, nuts, olts,
and other fasteners are properly se-
cured efore starting the machine.
Check all screws, nuts, olts, and
other fasteners for proper tightness
to ensure everything is in proper
working condition once every 10
hours of operation.
15. Keep all guards, deflectors, and
shields in place and in good work-
ing condition.
16. Do not transport or move machine
while the machine is running.
1.2 OPERATION SAFETY
1. Do not allow hands or any part of
ody or clothing near any moving
part.
2. Exclude pieces of metal, rocks,
ottles, cans, and other foreign o -
jects from entering the machine.
7. Keep the machine clear of de ris
and other accumulations.
8. Set up your work site so you are
not endangering traffic and the pu -
lic. Take great care to provide ad-
equate warnings.
9. Ensure de ris does not low into
traffic, parked cars, or pedestrians.
10. Check the olts for correct torque
every 10 hours of operation.
11. Shut off engine and allow machine
to stop completely efore clearing
de ris if the machine ecomes
clogged.
DANGER
Keep hands, feet and clothing out of
inlets and discharge openings while
machine is operating to avoid seri-
ous personal injury.
WARNING
Material can kickup or shift suddenly
and cause serious injury or death.
Wear eye and hearing protection.
3. Shut off machine immediately if the
cutting mechanism strikes any for-
eign o ject or the machine starts
making an unusual noise or vi rat-
ing. Allow the machine to stop
completely. After machine stops:
A. Inspect for damage.
B. Replace or repair any
damaged parts.
C. Check for and tighten any
loose parts.
4. Stand clear of the discharge area
when operating this machine.
5. Keep your face and ody ack from
the feed opening.
6. Do not clim on machine when op-
erating. Keep proper alance and
footing at all times.

71020 & 70554 Chipper Shredder Owners ManualPage 4
Safety
1.4 PTO SAFETY
1. Read and follow instructions on
PTO safety decals.
2. Stay alert and pay attention when
PTO is operating.
3. Keep ystanders, especially chil-
dren, away from PTO driveline.
4. Check the driveline to ensure it is
attached securely to the power
supply.
5. Keep guards and shields in place
at all times while operating. Dis-
engage PTO and shut off engine
efore removing guards or shields.
6. Clothing worn y operator must e
fairly tight. Never wear loose fit-
ting jackets, shirts, or pants when
working around the PTO. Tie long
hair ack or put under a cap.
1.3 MAINTENANCE AND STORAGE SAFETY
1. Replace any missing or unread-
a le safety decals. Refer to the
parts manual for part num ers
when ordering safety decals from
an area Bear Cat dealer.
NOTE
If equipped, see engine owners
manual or contact the engine manu-
facturer for engine safety instruc-
tions and decals.
2. Store the machine out of reach of
children and where potential fuel
vapors will not reach an open flame
or spark.
3. Allow machine to cool efore stor-
ing in an enclosure.
7. Keep hydraulic hoses, electric
cords, chains, and other items from
contacting the driveline.
8. Do not exceed the recommended
540 RPM PTO operating speed.
9. When this equipment is stopped
for servicing, inspection, or stor-
age make sure to disengage PTO.
10. Keep hands, feet, and clothing
away from all PTO drive parts.
11. Do not clean, lu ricate, or adjust
the PTO shaft when it is running.

71020 & 70554 Chipper Shredder Owners Manual Page 5
Safety
1.6 BATTERY SAFETY
1. Improper use and care of the at-
tery on electric start models can
result in serious personal injury or
property damage. Always o serve
the following safety precautions:
A- Poison/Danger - Causes Severe
Burns. The attery contains sulfu-
ric acid. Avoid contact with skin,
eyes or clothing. Keep out of
reach of children.
ANTIDOTE-External Contact:
Flush immediately with lots of wa-
ter.
ANTIDOTE-Internal: Drink large
quantities of water or milk. Follow
with milk of magnesia, eaten egg
or vegeta le oil. Call a physician
immediately.
ANTIDOTE-Eye Contact: Flush
with water for 15 minutes. Get
prompt medical attention.
B- The attery produces explosive
gases. Keep sparks, flame or
cigarettes away. Ventilate area
when charging attery. Always
wear safety goggles when work-
ing near attery.
C- The attery contains toxic materi-
als. Do not damage attery case.
If case is roken or dam-aged,
avoid contact with attery contents.
Neutralize acid spills with a ak-
ing soda and water solution. Prop-
erly dispose of a damaged or worn-
out attery. Check with local au-
thorities for proper disposal meth-
ods.
D- Do not short circuit attery. Se-
vere fumes and fire can result.
E- Before working with electrical wires
or components: disconnect at-
tery ground (negative) ca le first.
Disconnect positive ca le second.
Reverse this order when reconnect-
ing attery ca les.
DANGER / POISON
SHIELD EYES
EXPLOSIVE GASES
CAN CAUSE
BLINDNESS OR
INJURY
NO
• SPARKS
• FLAMES
• SMOKING
SULFURIC
ACID
CAN CAUSE
BLINDNESS OR
SEVERE BURNS
FLUSH EYES
IMMEDIATELY
WITH WATER
GET
MEDICAL
HELP
FAST
KEEP OUT OF THE REACH OF CHILDREN. DO NOT TIP. KEEP VENT CAPS TIGHT AND LEVEL.
1.5 TOWING SAFETY
1. Rotate the discharge tu e to face
the opposite direction of the tow-
ing vehicle efore towing. This pre-
vents the discharge tu e from pro-
jecting over the trailer wheels and
striking foreign o jects.
2. Connect hitch safety chains.
Tighten and secure trailer hitch
olts. Do not attempt to tow the
trailer if vehicle is not equipped with
a 2 all.
3. Do not exceed maximum towing
speed, indicated on tire sidewall.
Inflate tires to manufacturers specs
as stated on the tire sidewall.
4. Check wheel lug olts periodically
to ensure they are tight and se-
cure.
5. Make sure the jack stand on trailer
is in the UP position to clear the
ground during towing. Place the
jack stand on a level surface and
secure it in the DOWN position e-
fore use.
6. Never allow passengers to ride on
the chipper chute while the vehicle
is moving, whether the chipper is
running or not.
7. If applica le, shut off fuel supply
when towing.

71020 & 70554 Chipper Shredder Owners ManualPage 6
Fig. #4, P/N 17846
Safety and instruction decals are located on the chipper frame and engine. Replace any decal that is damaged or
unreada le.
1.7 SAFETY DECALS
Fig. #6, P/N 17837
Fig. #7, P/N 1608
Fig. # , P/N 17423
Fig. #3, P/N 16033
Fig. #8, P/N 16408
Safety Decals
NOTE
For engine safety and instruction decals, see engine
owners manual or contact engine manufacturer.

71020 & 70554 Chipper Shredder Owners Manual Page 7
2.0 ASSEMBLY
Your chipper/shredder may arrive totally or partially
assem led. If your machine arrives partially assem led, you
may need to perform the steps in this section.
2.1 ASSEMBLY TOWABLE MODELS
1. Remove the chipper/shredder and hopper assem ly from
shipping crate.
2. Place hopper assem ly on top of shredder frame. The
ta s on the ottom of the hopper should e placed in-
side of the shredder frame. Secure with (11) 5/16" x 3/
4" olts, washers and locknuts. Insert the olts from
the inside of the hopper outwards.
3. Install rims and wheels onto trailer frame, using the wheel
olts supplied.
4. Using three 5/16" x 1" olts, six 5/16" washers, and
three 5/16" locknuts, install the fender onto the existing
fender racket on the chipper chute side of the unit. A
washer is used on oth the olt head and the nut in this
application. Torque olts and nuts to 20 ft. l s.
5. Using three 5/16" washers and three 5/16" nylock nuts,
mount the left side fender onto the large elt guard.
There are three weld stu s on the elt guard to which
the fender is attached. Torque to 20 ft. l s.
6. Insert trailer hitch into track on the ottom of the trailer
frame and secure with three 3/8" olts, washers and
nuts that connect under the trailer frame. Tighten to 35
ft. l s. torque
7. Read and ecome familiar with the Engine Owners
Manual. Be sure to fill the engine oil efore starting the
machine.
8. Install 12 volt attery (not supplied) into tray on hitch
assem ly. Connect ca les, e sure lack ca le is at-
tached to negative attery terminal and red ca le to
positive terminal. Secure attery with angle and olt.
(NOTE: Battery size-Group U1 12 volt 32 amp-250 cold
cranking amps.)
9. Connect spark plug wire.
2.2 ASSEMBLY PTO MODEL
1. Remove from crate.
2. Place hopper assem ly on top of shredder frame. The
ta s on the ottom of the hopper should e placed in-
side of the shredder frame. Secure with (11) 5/16" x 3/
4" olts, washers and locknuts. Insert the olts from
the inside of the hopper outwards.
3. Connect 3 pt. mounts on chipper/shredder and tractor
(a special ushing kit is needed for category 2 & 3
hitches). Secure connection with snap rings.
4. Adjust leg stands so that the PTO drive shaft runs as
straight as possi le. PTO shaft angle should not ex-
ceed 15 degrees.
5. Connect PTO shaft etween chipper shredder and trac-
tor. Make sure you are using the correct RPM machine,
there are two models, 540 rpm and 2000 rpm. Do not
operate machine at speeds different than specified on
shield.
6. Never inspect or work on PTO drive area without first
disengaging PTO and shutting off the tractor engine.
7. Start tractor engine and engage PTO drive clutch (refer
to the tractors owner's manual). Increase engine speed
to rated PTO rpm position.
2.3 2000 RPM PTO MODELS
1. Remove existing PTO shaft shield
2. Remove existing PTO shaft from chipper/shredder.
3. Install new PTO shaft onto chipper/shredder.
4. Install new PTO shaft shield onto chipper/shredder.
5. Check slip clutch adjustment while the machine is run-
ning to ensure it is operating correctly. Adjust if needed.
When the tractor used has an electric PTO clutch and
rake, a different PTO shaft should e used.
NOTE
The maximum distance etween the chipper/shredder
and the tractor should not exceed 22-1/2 inches. The
minimum & maximum telescoping on the PTO shaft
is 18" to 26". This will leave a 4 inch overlap at
maximum telescoping distance.
NOTE
Assembly

71020 & 70554 Chipper Shredder Owners ManualPage 8
Assembly
2.4 INSTALLING THE BATTERY
1. The machine may or may not have een shipped with a
attery depending on your area. If you did not receive a
attery with your machine, you will need to purchase
one.
2. Use a attery that meets or exceeds the following speci-
fications:
Battery, Category, Lawn and Garden
BCI Group Size U1
200-250 CCA
7-3/4 X 5-3/16 X 7-5/16
Suggested Source: Exide Cutting Edge, Type GT-H
3. If you received a attery with your machine, proceed to
the next step.
4. Remove or destroy any sealing device which may have
een used to close or restrict the vent openings.
5. Remove attery vent caps and fill cells until affle plate
is covered with 1.25 of electrolyte at 80° F. Battery and
electrolyte must e at a temperature a ove 60° F, ut
should not exceed not exceed 100° F.
6. After filling, attery should e charged to the specifica-
tions elow and put into service immediately.
 Temperature over 60° F
 3 amperes for 4 Hours
 Temperature under 60° F
 3 amperes for 6 Hours
7. Place charged attery in attery ox on chipper shred-
der.
8. Remove key from engine ignition.
9. Install the positive (+) attery ca le to the positive (+)
attery terminal using a 5/16 X 1 hex head olt and 5/
16 nylock nut. An insulating oot is loosely installed
on this ca le. Slide the insulating oot over the termi-
nal, making sure that the terminal is completely cov-
ered.
10. Install the negative (-) ca le on the negative (-) attery
terminal using a 5/16 X 1 hex head olt and 5/16 nylock
nut. There is no insulating oot for this terminal.
11. Secure attery ox cover.
IMPORTANT
DO NOT ATTEMPT TO START THE ENGINE AT THIS
TIME. Wait until you have read the complete starting
instructions in the Operation Section of this Manual.
WARNING
To avoid sparks and a possi le explosion or fire due
to a short circuit:
1. Do not touch the positive (+) attery terminal and
any surrounding metal with tools, jewelry or other
metal o jects.
2. When installing attery ca les, connect positive
(+) ca le first and negative (-) ca le last.
NOTE
The attery that was shipped with the machine was
shipped dry. The attery will need to e serviced
efore installation.

71020 & 70554 Chipper Shredder Owners Manual Page 9
3.0 CONTROLS
3.1 TOWABLE MODELS
1. Engine Throttle Refer to Honda Engine Operators
Manual . The throttle changes engine speed.
2. Engine Choke Refer to Honda Engine Operators
Manual. Use when starting cold engine.
3. Key Switch Used to start the engine. To start the
engine, activate starter switch and release switch as
soon as the engine is running. Do not crank starter for
more than 10 seconds or damage may result.
4. Engine Fuel Tank Use unleaded fuel only. DONOT
MIX OIL AND GASOLINE.
5 Trailer Hitch Always use 2" all and hook safety
chains to tow the vehicle.
6 Jack Stand. Must e up and clear from the ground
when moving the unit. When the unit is in use, e
sure that the jack stand is down and locked in
position with the snap pin.
7 Foot Pedal N/S. Used to engage rotor drive elt.
Controls
Fig. #9, Towable Chipper Shredder

71020 & 70554 Chipper Shredder Owners ManualPage 10
B
3
D
4
2
1
C
A
3.2 PTO MODELS
1 3 pt Hitch Connections Mount chipper/shredder to
tractor. Connect direct for categories 0 & 1. A ush-
ing kit must e installed on 3 pt. connections for
category 2 hitches.
2 PTO Shaft Connects tractor PTO to chipper/
shredder drive shaft. Avoid angle greater than 15
degrees up or down when unit is in use.
3 Leg Stands Adjusta le to allow proper driveshaft
angle. Do not move machine unless the legs are
clear and off the ground.
4 Jackshaft Used for correct elt tension adjustment.
3.3 COMMON PARTS
A Shredder Hopper Material to e shredded is fed
through the hopper to the shredding knives.
B Chipper Chute Material to e chipped is fed through
the chipper chute to the chipper lades.
C Drive Belt Shield Never remove shield while the unit
is running.
D Rotor Access Cover Used to remove chipper lades
and service rotor assem ly.4.0
Controls
Fig. #10, unclutched PTO shaft kits
Fig. #11, PTO Chipper Shredder
(See Fig. #9) There are two different types of
unclutched PTO shaft kits availa le for the 2000 RPM
units. Check the PTO end of your tractor to determine
if you need a Male Drive Shaft Kit (P/N 70912) or a
Female Drive Shaft Kit (P/N 70913). There is a
Clutched PTO shaft Kit (P/N 70885) for tractors with
electric rake on the PTO.
NOTE

71020 & 70554 Chipper Shredder Owners Manual Page 11
4.0 OPERATION
4.1 STARTING (TOWABLE MODEL
Move machine to a clear level area outdoors efore starting.
Do not operate machine on a paved, concrete, or gravel
surface. Do not operate in the vicinity of ystanders. Make
sure cutting cham er is empty efore starting.
1. Before starting, check engine oil level and fill if neces-
sary. See engine owners manual for operation and main-
tenance instructions.
2. Before starting, fill fuel tank with fresh, clean unleaded
regular gasoline. DO NOT MIX OIL WITH GASOLINE.
3. Disengage clutch lever y pressing foot clutch pedal.
4. Place engine throttle lever at 3/4 - full open position.
Place engine choke lever to choke position.
5. Activate the starter switch. Release the key as soon
as the engine starts. Do not crank for more than 10
seconds. Repeat if necessary.
6. Move choke lever to run position after engine starts.
Some choke may e needed until engine is fully
warmed up.
7. Once engine is running and no choke is needed,
slowly let foot clutch pedal up. This will engage the
drive elt and the rotor will turn.
4.2 STARTING (PTO MODEL
1. Start tractor engine and engage PTO drive clutch (See
tractor owners manual). Increase engine speed to
rated PTO RPM position.
4.3 SHREDDING
1. Place materials to e shredded (grass, leaves, garden
refuse, sticks and ranches less the 1-1/2 inches in
diameter and 24 inches long, etc.) into the hopper.
2. If necessary, use a leaf tamper, ranch or other
similar o ject to push material through the inlet
guards.
3. Feed material evenly into the shredder so that the
engine does not lug down or the shredder ecome
plugged. Attempting to use the clutch to clear a
plugged rotor will cause elt damage. Branches or
items that plug or cause the machine to stall should
e fed in more evenly or put through the chipper
chute.
Check oil level with each use. Some oil usage is normal.
NOTE
Handle fuel (gasoline) with care. It is highly flama le.
Always use an approved container and fill tank
outdoors. Never add fuel to a running or hot engine.
WARNING
If engine kills when engaging foot clutch pedal, either
use more choke or increase engine RPM. When the
clutch is engaged the foot pedal may vi rate or shake
until the engine and rotor have increased to full
operating RPM.
NOTE
Operation

71020 & 70554 Chipper Shredder Owners ManualPage 12
Figure 4
4.4 CHIPPING
1. Select lim s that are etween 3/4 and 5 inches in
diameter; trim side ranches off that cannot e ent
over enough to fit into the chipper chute. Some small
ranches can e roken off on the chipper chute
transport handle. Small diameter ranches can e
held together in a undle and fed in simultaneously.
2. Place lim , utt end first, into the chipper chute until
it contacts the chipping lades. The actual feed rate
of the lim into the chipper will depend on the type of
material eing fed, the sharpness of the cutting
lades and the size of the machine. Alternately insert
and retract the lim or insert continuously at a rate
that will not kill the engine. Rotating the ranch as it
is eing fed will improve cutting action.
3. The chipping lades will dull with use and require
periodic sharpening. Refer to the Service and Mainte-
nance section for instructions.
Operation
Due to the aggressiveness of the machines chipping
capacity, do not attempt to hold on to material
intended for chipping once it has een placed in the
chute.
WARNING
4.5 STOPPING (TOWABLE MODELS
To stop the machine, proceed as follows:
1. Move throttle to slow position.
2. Disengage rotor clutch y pressing foot pedal.
3. Move throttle to stop position or turn off ignition switch
and remove spark plug wire from spark plug.
4. Allow machine to come to a complete stop.
4.6 STOPPING (PTO MODELS
1. Move the tractor throttle to slow position.
2. Disengage the PTO lever and shut off the tractor
engine.
3. Allow the machine to come to a complete stop.
The rotor is heavy and has inertia that will make the
rotor continue to turn for some time after the clutch
has een disengaged. You can tell that the rotor has
come to a complete stop when there is no noise,
machine vi ration, or the exposed end of the rotor
shaft is not rotating. The stopping time can e
shortened y inserting a ranch into the chipper chute
so it contacts the lades and slows the rotor.
NOTE
Fig. # 12, chipping

71020 & 70554 Chipper Shredder Owners Manual Page 13
5.0 SERVICE AND MAINTENANCE
Service and Maintenance
WARNING
Before inspecting or repairing any part of the machine,
shut off the engine and make sure all moving parts
have come to a complete stop.
SERVICE AND MAINTENANCE SCHEDULE
FREQUENCY
COMPONENT MAINTENANCE
REQUIRED
BEFORE
EACH
USE
EVERY
8
HOURS
EVERY
25
HOURS
EVERY
50
HOURS
EVERY
100
HOURS
EVERY
200
HOURS
EVERY
500
HOURS
EVERY
1500
HOURS
ENGINE OIL CHECK OIL LEVEL
•
FUEL TANK FILL
•
AIR CLEANER CHECK AND CLEAN¹
•
AIR INTAKE CLEAN¹
•
NUTS AND BOLTS CHECK
•
PRE-CLEANER
ELEMENT CLEAN¹ •
ENGINE OIL CHANGE¹
•
COOLING SHROUDS CLEAN¹ •
SPARK PLUG CHECK CONDITION
AND GAP •
BENDIX STARTER
DRIVE SERVICE² •
SOLENOID SHIFT
STARTER
DISASSEMBLE AND
CLEAN² •
FUEL FILTER REPLACE
•
CHIPPER BLADES CHECK, SHARPEN IF
NEEDED³ •
SHREDDER KNIVES CHECK CONDITION OF •
2-BOLT FLANGE
BEARINGS GREASE •
BELT TENSIONER
PIVOT GREASE •
PTO CROSS
JOURNALS GREASE •
PTO INNER TUBES GREASE
•
PTO SHIELD BEARINGS GREASE •
BATTERY
CONNECTIONS CHECK •
BELT CONDITION CHECK
•
BELT TENSION CHECK •
DISCHARGE TUBE
FLANGE GREASE •
SAFETY SWITCH CHECK FUNCTION
•
TRAILER TIRE
PRESSURE CHECK •
ENTIRE MACHINE CLEAN •
¹ PERFORM MORE FREQUENTLY UNDER EXTREMELY DUSTY CONDITIONS.
² HAVE A HONDA ENGINE SERVICE DEALER PERFORM THIS SERVICE.
³ IT IS A GOOD SIGN THAT YOUR CHIPPER BLADES WILL NEED SHARPENING WHEN MATERIAL STOPS SELF FEEDING.

71020 & 70554 Chipper Shredder Owners ManualPage 14
5.1 REMOVING DISCHARGE SCREEN
1. Remove the discharge screen y removing the two
5/16 in. retaining olts from the ottom of the screen.
2. Pull the ottom of the screen outward. This will
cause the screen to rotate off the lip and fall.
3. To reinstall the discharge screen, place the top lip of
the screen into the slot under the top slope.
4. Rotate the screen so that the olt holes align with
the holes in the chipper ase and the plate utts
against the kicker ar.
5. Reinstall olts and torque to proper specs.
5.2 SHARPENING CHIPPER BLADES
The chipper lades will eventually ecome dull, making
chipping difficult. It is recommended that the chipper
lades are sharpened every 5-15 hours of chipper
operation. To remove the chipping lades for sharpening:
1. Remove the discharge screen y removing the 5/16
inch retaining olt and pulling the screen outward.
2. Romove the access cover on the chipper chute side
of the machine.
3. Rotate the rotor so that the olts holding the chipper
lade are most accessa le.
4. Remove the two hex head olts holding the lade it-
self. Repeat for all four lades.
5. Grind the angled edge of the chipping lade to 45 de-
grees. Grind the lades on a slow-speed wet grinder if
possi le, or have them sharpened y a professional. If
you use a ench grinder, e careful when grinding so
that the lade material does not get too hot and change
colorthis will remove the lade's special heat treated
properties. Use short grinding times and cool with wa-
ter. Try to remove an equal amount off each lade to
maintain alance.
6. Replace the chipping lades and tighten olts to 20 ft.
l s.
5.3 CHIPPING BLADE SHARPENING
TIPS
Poor chipping performance is usually a result of dull
chipping lades. If your chipper's performance has
decreased, check for the following symptoms:
1. Severe vi ration when feeding material into the
chipper.
2. Small diameter ranches do not self-feed.
3. Chips discharge unevenly or have stringy tails
especially when chipping green ranches.
Before you sharpen the chipping blades, check for
permanent damage Replace the blade if:
1. The lade is cracked (especially around the olt
holes) or the edges are too deeply chipped to e
ground smooth.
2. The ase of the cutting edge is worn or has een re-
sharpened so that it is too close to the rotor chipping
slot.
Service and Maintenance
Before inspecting or servicing any part of the machine,
shut off the engine, and make sure all moving parts
have come to a complete stop. The chipping lades
are sharp! Use care when working on machine to avoid
injury.
WARNING
Never sharpen the ack side of the chipper lade. This
will cause the edge to roll and the chipping lade will
e damaged, causing poor chipping and feeding of
material. Small imperfections, nicks, urrs, etc. on the
flat side of the lade will not affect performance.
WARNING
450
Fig. #13, blade sharpening

71020 & 70554 Chipper Shredder Owners Manual Page 15
5.4 SETTING CHIPPING BLADE
CLEARANCE
The chipping lades should clear the chipper lock
located directly under the chipper chute y 1/16 inch to
1/8 inch. To adjust the lade clearance, proceed as
follows:
1. Remove the lower elt guard, discharge screen and
the access cover.
2. Loosen ushing olts holding the pulley to the rotor
shaft on the front side.
3. Remove the cover cap on rotor shaft rear side.
4. Use a punch and hammer to tap the lock collars in a
direction opposite of normal rotation so that they
rotate and can e removed.
5. Using a ru er mallet, tap the end of the rotor shaft to
o tain 1/16 to 1/8 of an inch clearance (See Fig. #14).
The lade clearance can e viewed through the
discharge opening. Rotate the rotor and check the
clearance on oth chipping lades.
6. Once clearance has een set, the lock collars must
e replaced to retain setting. Slip the lock collars
over the eccentric hu on the earings. Using a
punch and a hammer, rotate the lock collars in the
direction of shaft rotation (i.e. clockwise on the rear
earing and counter-clockwise on the front earing)
and "set" the lock collars with a hammer tap. Tighten
the lock collar set screws.
7. Loosen the ushing holding the elt pulley on the
rotor shaft. Move the pulley on the shaft so it is
aligned directly elow the similar pulley on the engine
shaft (the pulley should e moved an equal ut
opposite amount the rotor was moved).
8. Replace the lower elt guard, discharge screen, and
rotor shaft cover.
Service and Maintenance
Fig. #14, Chipper blade clearance

71020 & 70554 Chipper Shredder Owners ManualPage 16
5.5 REPLACING SHREDDER KIT
1. Remove discharge cover and discharge screen.
2. Remove rear side access cover.
3. Work with one knife shaft at a time. Remove #10-24
olt and nut from knife shaft and discard, do not
reuse.
4. Using a hammer and punch, drive the knife shaft
through the access hole on the rear of the machine.
Service and Maintenance
Never reuse rotor shafts or olts and nuts if they show
signs of wear or a use. Install new ones.
NOTE
5
37
7
6
7
5
7
33
7
4
7
7
7
5
6
7
5
9
8
21
RECTANGULAR SHREDDER KNIVE KIT
TYPICAL SETUP FOR MODEL #'S 70554 & 71020
ITEM # PART # QTY DESCRIPTION
1 15397 6 NUT, # 10 X 24 NYLOCK
2 15466 6 SCREW, 10-24 X 1-1/8
3 70367 10 SHORT SPACER .75 X .59 (LARGE C/S)
4 70368 2 SHORT SPACER-BORED .75 X .59 W/HOLE (LARGE C/S)
5 70369 8 SPACER, .75 X 1.18
6 70370 4 MEDIUM SPACER-BORED .75 X 1.18 W/ HOLE (LARGE C/S)
7 70371 18 LONG SPACER .75 X 1.47 (LARGE C/S)
8 70381 6 ROTOR KNIFE SHAFT (LARGE C/S)
9 70856 36 SHREDDING KNIFE, RECTANGULAR
5. Remove spacers and shredder knives. Be careful to
keep track of the order the spacers were installed on
the shafts so they can e returned to the original
locations. If the spacers and knives are not installed
correctly, the rotor will e out of alance and will not
have proper shredding action.
6. Reverse or replace knives and reassem le ack into
the rotor. Install new #10-24 olt and nut through the
spacer and shaft, then retorque to 36 in l s.
7. Complete service of all six shafts in this same
process.
8. After the access cover, discharge screen and cover
have een installed, torque all 3/8 olts to 33 ft l s.
and test run the machine.
Fig. #1