Crary 71620, 72620, 74824, Bear Cat 71620, Bear Cat 72620 Owner's/operator's Manual
...
OWNER
OPERATORS
MANUAL
6" and 8"
Chipper
Models
74824
8" 24 HP Chipper with
Hydraulic Feed
72620
6" 20 HP Chipper with
Hydraulic Feed
71620
6" 20 HP Chipper
Crary Company
A Division of TerraMarc Industries
237 12th St. NW P.O. Box 849
West Fargo, ND 58078-0849
(701)282-5520 FAX: (701)282-9522
www.bearcatproducts.com
www.terramarc.com
Manual P/N 13987-00
Rev. 02/03
Companion to 13988-00
Before you Begin
DEAR BEAR CAT CUSTOMER,
Thank you for purchasing a Crary Bear Cat product. The Bear 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 Bear 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.
How to Contact
Bear Cat
A
DDRESS
Crary Bear Cat
237 NW 12th Street
PO Box 849
West Fargo, ND 58078
P
HONE
800-247-7335
701-282-5520
Fax: 701-282-
9522
E
MAIL
opesales@crary.com
service@crary.com
H
OURS
EMISSION INFORMATION
WARNING
WARNING TO ALL CALIFORNIA
AND OTHER STATES OPERATING
OUTDOOR POWER EQUIPMENT
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
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
M-F, 8 a.m. to 5
p.m. Central Time
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.
I
6" and 8" Bear Cat Chipper Operators Manual
Limited Warranty
Crary Bear Cat chippers are warranted for 1 year from date of sale for consumers , commercial, or rental
operations.
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 that 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 Bear
Cat service dealer using Bear Cat approved replacement parts. Repair or attempted repair by anyone other
than an authorized Bear 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 that
vary from state to state.
Be sure to note the serial number in any correspondence with Crary Co. or any authorized Bear Cat dealer.
Crary Company
A Division of TerraMarc Industries
237 12th St. NW P.O. Box 849
West Fargo, ND 58078-0849
(701)282-5520 FAX: (701)282-9522
www.bearcatproducts.com
www.terramarc.com
6" & 8" Bear Cat Chipper Operators Manual II
CONTENTS
SAFETY ..........................................................................................................................................................................1
1.1 THE SAFETY ALERT SYMBOL ................................................................................................................................1
1.2 BEFORE OPERATING .............................................................................................................................................. 1
1.3 BEFORE OPERATING .............................................................................................................................................. 2
1.4 OPERATION SAFETY ............................................................................................................................................... 2
1.5 MAINTENANCE AND STORAGE SAFETY ............................................................................................................... 3
1.6 TOWING SAFETY ..................................................................................................................................................... 3
1.7 BATTERY SAFETY ................................................................................................................................................... 3
ASSEMBLY .................................................................................................................................................................... 4
2.1 ASSEMBLING THE MACHINE .................................................................................................................................. 4
2.2 INSTALLING THE BATTERY ......................................................................................................................................5
CONTROLS ....................................................................................................................................................................6
3.1 MACHINE CONTROLS .............................................................................................................................................. 6
OPERATION ...................................................................................................................................................................7
4.1 STARTING THE MACHINE ........................................................................................................................................ 7
4.2 STOPPING THE ENGINE .......................................................................................................................................... 8
4.3 CHIPPING .................................................................................................................................................................8
4.4 ROTATING THE CHIPPER BASE .............................................................................................................................. 8
4.5 HYDRAULIC FEED OPERATION (MODELS 72620 & 74824) .................................................................................... 9
4.6 CONTROL ARM OPERATION (MODELS 72620 & 74824) ......................................................................................... 9
4.7 HYDRAULIC FEED COMPONENT LOCATIONS (MODELS 72620 & 74824) ............................................................ 9
SERVICE & MAINTENANCE ......................................................................................................................................... 10
5.1 SHARPENING CHIPPER BLADES ......................................................................................................................... 10
5.2 SETTING CHIPPER BLADE CLEARANCE .............................................................................................................. 11
5.3 ADJUSTING DRIVE BELTS ..................................................................................................................................... 11
5.4 REPLACING DRIVE BELTS .................................................................................................................................... 12
5.5 CLEARING PLUGGED ROTOR ............................................................................................................................... 12
5.6 REPAIRING OR REPLACING ROTOR BEARINGS .................................................................................................. 13
5.7 GREASEABLE BEARINGS AND PIVOTS .............................................................................................................. 13
5.8 OTHER SERVICE TIPS........................................................................................................................................... 13
5.9 TRAILER SERVICE TIPS ........................................................................................................................................ 13
5.10 HYDRAULIC FLUID (MODELS 72620 & 74824) ..................................................................................................... 14
5.11 PUMP COMPONENT LOCATIONS (MODELS 72620 & 74824) ............................................................................. 14
5.12 HYDROSTATIC PUMP START UP PROCEDURE (MODELS 72620 & 74824)........................................................ 14
5.13 HYDRAULIC FEED MAINTENANCE (MODELS 72620 & 74824) ........................................................................... 15
5.14 ADDING HYDRAULIC FLUID........................................................................ .................................................... 15
TROUBLESHOOTING .................................................................................................................................................. 16
6.1 GENERAL TROUBLESHOOTING ............................................................................................................................ 16
6.2 HYDROSTATIC PUMP TROUBLESHOOTING (MODELS 72620 & 74824) ............................................................... 17
SPECIFICATIONS ........................................................................................................................................................ 18
7.1 SPECIFICATIONS ................................................................................................................................................... 18
7.2 BOLT TORQUE ....................................................................................................................................................... 19
III
6" & 8" Chipper Bear Cat Operators Manual
1
Safety
Section
1.1 THE SAFETY ALERT SYMBOL
This is the safety alert symbol. It is used in this Owner / Operators Manual and on your machine
to alert you to potential hazards.
Whenever you see this symbol, read and obey the safety message that follows it. Failure to obey
the safety message could result in personal injury, death or property damage.
Indicates an imminently hazardous situation that, if not avoided, will result in
DANGER
death or serious injury.
WARNING
CAUTION
1.2 BEFORE OPERATING
1. Read this Owner / Operators
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.
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.
4. Familiarize yourself with all of the
safety and operating decals on this
equipment and on any of its attachments or accessories.
5. Do not allow children or any person unfamiliar with the use of the
unit to use this machine.
6. Keep the area of operation clear of
all persons, particularly small children. Keep bystanders 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 buildings,
windows, or air conditioners.
8. If needed, always use an approved
fuel container. Keep open flames,
sparks, smoking materials, and
other sources of combustion away
from fuel.
9. Do not operate this machine if you
are under the influence of alcohol,
medications, or substances that
can affect your vision, balance, and
judgement. Do not operate if tired
or ill. You must be in good health
to operate this machine safely.
3. Keep safety decals clean and legible. Replace missing or illegible
safety decals.
Page 16" & 8" Bear Cat Chipper Operators Manual
Safety
1.3 BEFORE OPERATING
10. Wear safety glasses at all times
while operating this machine.
1.4 OPERATION SAFETY
WARNING
Material can kickup or shift suddenly
and cause serious injury or death.
Wear eye and hearing protection.
DANGER
Keep hands, feet and clothing out of
inlets and discharge openings while
machine is operating to avoid serious personal injury.
11. Use only in daylight or good artificial light.
12. Never use without proper guards
in place.
13. Avoid wearing loose fitting clothing. Never operate this machine
wearing clothing with drawstrings
that could wrap around or get
caught in the machine.
14. Check that all screws, nuts, bolts,
and other fasteners are properly se-
3. Shut off machine immediately if the
cutting mechanism strikes any foreign object or the machine starts
making an unusual noise or vibrating. 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.
cured before starting the machine.
Check all screws, nuts, bolts, 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 working condition.
16. Do not transport or move machine
while the machine is running.
8. Set up your work site so you are
not endangering traffic and the public. Take great care to provide adequate warnings.
9. Ensure debris does not blow into
traffic, parked cars, or pedestrians.
10. Check the bolts for correct torque
every 10 hours of operation.
11. Shut off engine and allow machine
to stop completely before clearing
debris if the machine becomes
clogged.
1. Do not allow hands or any part of
body or clothing near any moving
part.
2. Exclude pieces of metal, rocks,
bottles, cans, and other foreign objects from entering the machine.
Page 2 6" & 8" Bear Cat Chipper Operators Manual
5. Keep your face and body back from
the feed opening.
6. Do not climb on machine when operating. Keep proper balance and
footing at all times.
7. Keep the machine clear of debris
and other accumulations.
1.5 MAINTENANCE AND STORAGE SAFETY
NOTE
If equipped, see engine owners
manual or contact the engine manufacturer for engine safety instructions and decals.
1. Replace any missing or unread-
able safety decals. Refer to the
parts manual for part numbers
when ordering safety decals from
an area Bear Cat dealer.
1.6 TOWING SAFETY
1. Rotate the discharge tube to face
the opposite direction of the towing vehicle before towing. This prevents the discharge tube from projecting over the trailer wheels and
striking foreign objects.
2. Connect hitch safety chains.
Tighten and secure trailer hitch
bolts. Do not attempt to tow the
trailer if vehicle is not equipped with
a 2 ball.
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 bolts periodically
to ensure they are tight and secure.
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
Safety
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 before storing in an enclosure.
secure it in the DOWN position before 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 applicable, shut off fuel supply
when towing.
1.7 BATTERY SAFETY
1. Improper use and care of the battery on electric start models can
result in serious personal injury or
property damage. Always observe
the following safety precautions:
2. Poison/Danger - Causes Severe
Burns. The battery contains sulfuric acid. Avoid contact with skin,
eyes or clothing. Keep out of
reach of children.
ANTIDOTE-External Contact:
Flush immediately with lots of water.
ANTIDOTE-Internal: Drink large
quantities of water or milk. Follow
with milk of magnesia, beaten egg
or vegetable oil. Call a physician
immediately.
ANTIDOTE-Eye Contact: Flush
with water for 15 minutes. Get
prompt medical attention.
3. The battery produces explosive
gases. Keep sparks, flame or
cigarettes away. Ventilate area
when charging battery. Always
wear safety goggles when working near battery.
4. The battery contains toxic materials. Do not damage battery case.
If case is broken or damaged,
avoid contact with battery contents.
DANGER / POISON
SHIELD EYES
EXPLOSIVE GASES
CAN CAUSE
BLINDNESS OR
INJURY
KEEP OUT OF THE REACH OF CHILDREN. DO NOT TIP. KEEP VENT CAPS TIGHT AND LEVEL.
NO
• SPARKS
• FLAMES
• SMOKING
Neutralize acid spills with a baking soda and water solution. Properly dispose of a damaged or wornout battery. Check with local authorities for proper disposal methods.
5. Do not short circuit battery. Severe fumes and fire can result.
6. Before working with electrical wires
or components: disconnect battery ground (negative) cable first.
Disconnect positive cable second.
Reverse this order when reconnecting battery cables.
FLUSH EYES
IMMEDIATELY
SULFURIC
ACID
CAN CAUSE
BLINDNESS OR
SEVERE BURNS
WITH WATER
GET
MEDICAL
HELP
FAST
Page 36" & 8" Bear Cat Chipper Operators Manual
2
Assembly
Section
2.1 ASSEMBLING THE MACHINE
1. Remove from shipping crate.
2. Support the frame on wood blocks or other support device.
3. Mount the two tires and rims to the axle assembly with
the lug nuts (supplied).
4. Mount the trailer hitch assembly to the frame using three
3/8 X 3-1/2 inch bolts and locknuts (supplied).
5. Fasten the chipper chute to the main frame mounting
bracket using eight 3/8 X 1 inch bolts and locknuts.
Use three bolts on each side and two on the bottom.
6. Attach the blower discharge tube to the mounting flange
on the chipper frame. Half of the mounting clamp is
already attached to the tube. Slide the tube into the
flange and tighten the bolts to secure it. Install the
second half of the clamp to the tube and flange. Rotate
the tube 360 degrees and lock it in place with the handle
to make sure it is mounted correctly.
7. Install battery. (See Section 2.2)
8. Fill the engine with oil (per instructions in supplied Honda
engine manual) and the gas tank with gasoline.
9. Fill the hydraulic reservoir. See Section 5.13 for specific
instructions.
10. Your chipper should be ready to use.
Page 4 6" & 8" Bear Cat Chipper Operators Manual
Fig. #1
Loading...