Echo 74824 Owners Manual v.3
OWNER'S MANUAL
Manual PN 13987-00
Rev. 0204
Companion to 13988-00
6 & 8 INCH CHIPPERS
DEAR BEAR CAT CUSTOMER,
Before you Begin
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.
How to Contact
Bear Cat
A
DDRESS
Crary Bear Cat
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.
EMISSION INFORMATION
WARNING
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.
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
M-F, 8 a.m. to 5
p.m. Central Time
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.
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.
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
Page 16" & 8" Bear Cat Chipper Operator’s Manual
Contents
SECTION DESCRIPTION PAGE
SERIAL NUMBER LOCA TION...............................................................................................................................3
REPLACEMENT PARTS.......................................................................................................................................3
1.0 SAFETY...................................................................................................................................4
1.1 THE SAFETY ALERT SYMBOL ....................................................................................................................4
1.2 BEFORE OPERA TING..................................................................................................................................4
1.3 OPERA TION SAFETY ..................................................................................................................................5
1.4 MAINTENANCE AND STORAGE SAFETY ....................................................................................................6
1.5 TOWING SAFETY ........................................................................................................................................6
1.6 BA TTERY SAFETY.......................................................................................................................................6
2.0 ASSEMBL Y .............................................................................................................................7
2.1 ASSEMBLING THE MACHINE ......................................................................................................................7
2.2 ATT ACH THE CHIPPER CHUTE ....................................................................................................................8
2.3 ATT ACH THE OPTIONAL CHUTE EXTENSION TRAY.....................................................................................8
2.4 ATTACH THE BLOWER DISCHARGE TUBE .................................................................................................9
2.5 CONNECT THE CONTROL CABLE ...............................................................................................................9
2.6 ADJUSTING THE HYDRAULIC FEED CONTROL CABLE ...............................................................................9
2.7 INST ALLING THE BA TTERY........................................................................................................................10
3.0 CONTROLS ..........................................................................................................................11
3.1 MACHINE CONTROLS ............................................................................................................................... 11
4.0 OPERATION..........................................................................................................................12
4.1 STAR TING THE MACHINE ..........................................................................................................................12
4.2 STOPPING THE ENGINE............................................................................................................................12
4.3 ROT ATING THE CHIPPER BASE ................................................................................................................13
4.4 CHIPPING .................................................................................................................................................13
4.5 HYDRAULIC FEED OPERA TION (72620 & 74824).......................................................................................14
4. 6 HYDRAULIC FEED COMPONENT LOCA TIONS (72620 & 74824).................................................................14
5.0 SERVICE & MAINTENANCE ...............................................................................................15
5.1 INST ALLING THE ROTOR (DISK) LOCK ......................................................................................................15
5.2 SHARPENING CHIPPER BLADES .............................................................................................................15
5.3 REPLACING CHIPPER BLADES ................................................................................................................16
5.4 SETTING CHIPPER BLADE CLEARANCE ..................................................................................................16
5.5 REPLACING DRIVE BELTS ........................................................................................................................16
5.6 ADJUSTING DRIVE BELTS .........................................................................................................................17
5.7 CLEARING A PLUGGED ROTOR ................................................................................................................ 17
5.8 REP AIRING OR REPLACING ROT OR BEARINGS.......................................................................................17
5.9 GREASEABLE BEARINGS AND PIVOTS ...................................................................................................18
5.10 OTHER SERVICE TIPS............................................................................................................................... 21
5.11 TRAILER SERVICE TIPS.............................................................................................................................21
5.12 HYDRAULIC FLUID (MODELS 72620 & 74824)............................................................................................21
5.13 HYDRAULIC PUMP ST ART UP PROCEDURE (72620 & 74824) ...................................................................21
5.14 HYDRAULIC FEED MAINTENANCE (72620 & 74824) ..................................................................................22
6.0 TROUBLESHOOTING ..........................................................................................................23
6.1 GENERAL TROUBLESHOOTING ................................................................................................................23
6.2 HYDROST ATIC PUMP TROUBLESHOOTING (72620 & 74824) ....................................................................24
7.0 SPECIFICATIONS.................................................................................................................25
7.1 SPECIFICA TIONS....................................................................................................................................... 25
7.2 BOL T TORQUE........................................................................................................................................... 26
Page 2
6" & 8" Bear Cat Chipper Operator’s Manual
SERIAL NUMBER LOCATION
Always give your dealer the serial number of your Crary Bear Cat product when ordering parts, requesting service or any
other information.
Please record the serial number in the space provided below and on the warranty and registration card. The serial number
is located on the top chipper housing.
WARNING
To prevent personal injury or property damage: Disengage the source providing power to the machine and
make sure that all moving parts have come to a complete stop before obtaining serial number, servicing, adjusting or repairing.
Serial Number ___________________
YXXXXX
Serial Number Decal
REPLACEMENT PARTS
Only genuine Bear Cat replacement parts should be used to repair the machine. Bear Cat replacement parts are available
from your Bear Cat dealer. To obtain prompt, efficient service, remember to give the dealer the correct part description and
serial number 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.
Page 36" & 8" Bear Cat Chipper Operator’s Manual
1
Section
Safety
1.1 THE SAFETY ALERT SYMBOL
This is the safety alert symbol. It is used in this Owner /
Operator’s 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.
DANGER
Indicates an imminently hazardous situation that, if not
avoided, will result in death or serious injury.
1.2 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 legible. Replace missing
or illegible safety decals.
4. Familiarize yourself with all of the safety and operating
decals on this equipment and on any of it’s attachments
or accessories.
5. Do not allow children or any person unfamiliar with the
use of the unit to use this machine.
WARNING
Indicates a potentially hazardous situation that, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation that, if not
avoided, may result in minor or moderate injury.
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.
Page 4
6" & 8" Bear Cat Chipper Operator’s Manual
SAFETY
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.
10. Wear safety glasses at all times while operating this
machine.
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.
1.3 OPERATION SAFETY
CAUTION
Material can 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.
1. Keep your body and clothing away from any moving
part of the machine.
2. Restrain pieces of metal, rocks, bottles, cans, and foreign objects from entering the machine.
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.
14. Check that all screws, nuts, bolts, and other fasteners
are properly secured 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 8 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.
5. Keep your face and body away 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.
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 8 hours of operation. (see section 7.2)
11. If the machine becomes clogged, shut off engine and
allow machine to stop completely, before clearing debris.
Page 56" & 8" Bear Cat Chipper Operator’s Manual
SECTION 1
1.4 MAINTENANCE AND STORAGE
SAFETY
NOTE
Always read and follow the engine owner's manual or contact the engine manufacturer for engine safety instructions and decals.
1. Disconnect the spark plug wire when this equipment is
stopped for service, inspection, storage, or to change
an accessory.
2. Replace any missing or unreadable safety decals. Refer to the parts manual for part numbers when ordering
safety decals from an area Bear Cat dealer.
3. Store the machine out of reach of children and where
potential fuel vapors will not reach an open flame or
spark.
4. Allow machine to cool before storing in an enclosure.
5. Drain the fuel and dispose of it in a safe manner for
storage periods of three months or more.
1.5 TOWING SAFETY
1.6 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.
1. Rotate the discharge tube to face the opposite direction
of the towing vehicle before towing.
2. Connect hitch safety chains. Tighten and secure trailer
hitch bolts. Do not attempt to tow the trailer if the vehicle is not equipped with a 2” ball.
3. Do not exceed maximum towing speed, indicated on
tire sidewall. Inflate tires to manufacturers specifications 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
during towing.
6. Never allow passengers to ride on the chipper.
7. If applicable, shut off fuel supply when towing.
Neutralize acid spills with a baking soda and water solution. Properly dispose of a damaged or worn-out 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.
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
SULFURIC
ACID
CAN CAUSE
BLINDNESS OR
SEVERE BURNS
FLUSH EYES
IMMEDIATELY
WITH WATER
GET
MEDICAL
HELP
FAST
Page 6
6" & 8" Bear Cat Chipper Operator’s Manual
2
Section
Assembly
Your chipper may arrive totally or partially assembled. If your
chipper arrives partially assembled, you may need to perform
the steps in this section. Refer to Figure 2.1 during
assembly.
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" bolts and locknuts (supplied).
5. Attach the Chipper Chute (see Section 2.2).
6. Attach the Optional Chute Extension Tray (see Section
2.3). The Chute Extension Tray is purchased separately.
7. Attach the Blower Discharge Tube (see Section 2.4).
8. Connect and adjust the Control Cable (see Section 2.5
and 2.6).
9. Install battery (see Section 2.7).
10. Check engine oil (see engine owner's manual) and fill
the gas tank with fresh gasoline.
11. Fill the hydraulic reservoir 2/3 full (see Section 5.12).
12. Your chipper should be ready to use.
IMPORTANT
DO NOT ATTEMPT TO START THE ENGINE AT THIS
TIME. Wait until you have read the complete Owner's
Manual.
Figure 2.1 - Chipper Assembly
Page 76" & 8" Bear Cat Chipper Operator’s Manual
ASSEMBLY
2.2 ATTACH THE CHIPPER CHUTE
Do not operate this unit without the chipper chute correctly
installed. Rotating cutting blades can cause serious personal
injury.
Mount the chipper chute to the hydraulic feed using eight
3/8" x 1" bolts and locknuts. To insert the top bolts, you
may need to temporarily lift the grab roller with a pry bar.
Use three bolts on each side and two on the bottom (see
Figure 2.2).
Hydraulic
Feed
Chipper
Chute
2.3 ATTACH THE OPTIONAL CHUTE
EXTENSION TRAY
The Optional Chute Extension Tray is purchased seperately.
1. After mounting the chute to the hydraulic feed, slide the
chute extension tray over the chipper chute as shown
in Figure 2.3. Make sure that you position the lip on
the extension tray behind the lip on the chipper
chute. Align the five bolt holes in the chute extension
tray with the bolt holes in the extension hinge.
2. Insert a 3/8" x 1" carriage bolt (included in owner's kit
packaged with the chipper) through the two outside holes
on the extension tray and the extension hinge. Secure
the bolts with washers and nuts.
3. Insert one 3/8" x 1" carriage bolt through the end of the
chute support and middle holes on the extension hinge
and extension tray. Secure the bolts with washer and
nuts. Secure with hairpin clips.
Hairpin Clip
Figure 2.2 - Chipper Chute Assembly
Extension
Hinge
Extension
Tray
Chipper
Chute
Position this
lip behind the
lip on the
chipper chute
shown below.
Hold the
extension tray
directly above
the chipper
chute and slide
it downward.
Feed Control
Lever
Page 8
Figure 2.3 - Chipper Chute Extension Tray Assembly
6" & 8" Bear Cat Chipper Operator’s Manual
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