Page 1
4 INCH CHIPPER
CH4400 - 400cc SUBARU
ENGLISH ESPAÑOL FRANÇAIS
Manual P/N: 76871-00
Rev. 010113
Companion to P/N 76872-00
VIN Range: 5VJAA0010DW000001 - Current
OWNER'S MANUAL
Page 2
Before You Begin
DEAR ECHO BEAR CAT CUSTOMER
Thank you for purchasing a ECHO Bear Cat product. The ECHO Bear Cat line is designed, tested, and manufactured
to give years of dependable performance. To keep your machine operating at peak efciency, 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 your machine.
If you have any questions or comments about this manual, please call us toll-free at 1.888.645.4520.
If you have any questions or problems with your machine, please call or write your local authorized ECHO Bear Cat Dealer.
This document is based on information available at the time of its publication. ECHO Bear Cat is continually making
improvements and developing new equipment. In doing so, we reserve the right to make changes or add improvements
to our product without obligation for equipment previously sold.
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 ll 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 or go to bearcatproducts.com/warranty/warranty-registration/.
FOR MACHINE SERVICE OR PARTS:
For service assistance, contact your nearest authorized
ECHO Bear Cat dealer or the factory. For parts, contact
your authorized dealer. The parts manual for your machine
is available at http://bearcatproducts.com/main/support/
index_html. Your dealer will need to know the identication
number of your machine to provide the most efcient
service. See below for information on how to identify and
record the identication number for your machine.
FOR ENGINE SERVICE OR PARTS:
For engine service or parts, contact your nearest authorized
engine dealer. ECHO Bear Cat does not handle any parts,
repairs or warranties for engines.
IDENTIFICATION NUMBER LOCATION
Your machine will have either a serial number or vehicle
identication number (VIN). VINs are located on the left
side of the trailer frame near the hitch. They are 17-digit
numbers of the format: 5VJAA001XXWXXXXXX. Serial
numbers are located on the machine body. They are
6-digit numbers.
Record your identication number in the space provided
and on the warranty registration card.
ORDERING PARTS
Only genuine ECHO Bear Cat replacement parts should
be used to repair the machine. Replacement parts
manufactured by others could present safety hazards,
even though they may t on this machine. Replacement
parts are available from your ECHO Bear Cat dealer.
Provide the following when ordering parts:
The SERIAL NUMBER OR VIN of your machine.
The PART NUMBER of the part.
The PART DESCRIPTION.
The QUANTITY needed.
SERIAL NUMBER OR VIN
HOW TO CONTACT ECHO BEAR CAT
ADDRESS PHONE E-MAIL HOURS
237 NW 12th Street
P.O. Box 849
West Fargo, ND 58078
*Original Instruction
© 2013, CRARY INDUSTRIES, ALL RIGHTS RESERVED. PRODUCED AND PRINTED IN THE U.S.A.
888.645.4520
701.282.5520
FAX: 701.282.9522
sales@bearcatproducts.com
service@bearcatproducts.com
Monday - Friday,
8 am to 5 pm
Central Time
Page 3
LIMITED WARRANTY
This warranty applies to all ECHO Bear Cat Outdoor Power Equipment manufactured by Crary Industries Inc.
Crary Industries warrants to the original owner each new ECHO Bear Cat product to be free from defects in
material and workmanship, under normal use and service. The warranty shall extend, from date of purchase,
3 years (U.S. and Canada only (2 years outside U.S. and Canada)) for Consumer use of the product, 1 year
for Commercial applications and 6 months for Rental applications.
“Consumer” defined as: complete unit for personal, residential or non-income producing use.
“Commercial” defined as: complete unit for commercial, institutional, property management, agricultural,
horticultural or income producing use.
“Rental” defined as: complete unit for rental purposes to produce income.
*Models SC2170, SC2206 & SC3206 are classified as Consumer grade products and will not qualify for
warranty coverage if used for Commercial or Rental purposes.
The product is warranted to the original owner as evidenced by a completed warranty registration on file at
Crary Industries. Replacement parts are warranted for (90) days from date of installation.
THE WARRANTY REGISTRATION MUST BE COMPLETED AND RETURNED TO CRARY INDUSTRIES
WITHIN 10 DAYS OF DELIVERY OF THE PRODUCT TO THE ORIGINAL OWNER OR THE WARRANTY
WILL BE VOID.
In the event of a failure, return the product, at your cost, along with proof of purchase to the selling ECHO
Bear Cat dealer. Crary Industries will, at its option, repair or replace any parts found to be defective in material
or workmanship. Warranty on any repairs will not extend beyond the product warranty. Repair or attempted
repair by anyone other than an authorized ECHO Bear Cat dealer as well as subsequent failure or damage
that may occur as a result of that work will not be paid under this warranty. Crary Industries does not warrant
replacement components not manufactured or sold by Crary Industries.
1. This warranty applies only to parts or components that are defective in material or workmanship.
2. This warranty does not cover normal wear items including, but not limited to: bearings, belts, pulleys,
filters, chipper blades, shredder flails or knives.
3. This warranty does not cover normal maintenance, service or adjustments.
4. This warranty does not cover depreciation or damage due to misuse, negligence, accident or improper
maintenance.
5. This warranty does not cover damage due to improper setup, installation or adjustment.
6. This warranty does not cover damage due to unauthorized modifications of the product.
7. Engines are warranted by the respective engine manufacturer and are not covered by this warranty.
Crary Industries is not liable for any property damage, personal injury or death resulting from the unauthorized
modification or alteration of an ECHO Bear Cat product or from the owner’s failure to assemble, install, maintain
or operate the product in accordance with the provisions of the Owner’s manual.
Crary Industries is not liable for indirect, incidental or consequential damages or injuries including but not
limited to loss of crops, loss of profits, rental of substitute equipment or other commercial loss.
This warranty gives you specific legal rights. You may have other rights that may vary from area to area.
Crary Industries makes no warranties, representations or promises, expressed or implied as to the performance
of its products other than those set forth in this warranty. Neither the dealer nor any other person has any
authority to make any representations, warranties or promises on behalf of Crary Industries or to modify the
terms or limitations of this warranty in any way. Crary Industries, at its discretion, may periodically offer limited,
written enhancements to this warranty.
CRARY INDUSTRIES RESERVES THE RIGHT TO CHANGE THE DESIGN AND/OR SPECIFICATIONS OF
ITS PRODUCTS AT ANY TIME WITHOUT OBLIGATION TO PREVIOUS PURCHASERS OF ITS PRODUCTS.
Page 4
TABLE OF CONTENTS
DESCRIPTION PAGE
SAFETY ...............................................................................................................................1
1.1 SAFETY ALERT SYMBOL ............................................................................................. 1
1.2 EMISSION INFORMATION ...........................................................................................1
1.3 BEFORE OPERATING ..................................................................................................2
1.4 OPERATION SAFETY ................................................................................................... 2
1.5 MAINTENANCE/STORAGE SAFETY ...........................................................................3
1.6 TOWING SAFETY .........................................................................................................3
1.7 SAFETY DECALS .......................................................................................................... 4
1.9 SAFETY DECALS ........................................................................................................... 4
1.8 SAFETY DECAL LOCATIONS .......................................................................................5
ASSEMBLY ..........................................................................................................................6
2.1 ASSEMBLY NON-CE COMPLIANT ............................................................................... 6
2.2 ASSEMBLY CE COMPLIANT ........................................................................................ 7
2.2 ASSEMBLY CE COMPLIANT (CONT.) .......................................................................... 8
2.3 OPTIONAL CONFIGURATION ...................................................................................... 8
2.4 CHECK MOTOR OIL .....................................................................................................9
2.5 FILL THE TANK .............................................................................................................9
FEATURES & CONTROLS ................................................................................................10
3.1 CHIPPER CONTROLS ................................................................................................ 10
3.2 ENGINE CONTROLS .................................................................................................. 11
OPERATION ......................................................................................................................12
4.1 STARTING ENGINE .................................................................................................... 12
4.2 OPERATING THE CHIPPER ....................................................................................... 12
4.3 CHIPPER OPERATION ..............................................................................................13
4.4 SLOWING AND STOPPING THE CHIPPER DISK AND ENGINE ..............................13
SERVICE & MAINTENANCE .............................................................................................14
5.1 MAINTENANCE SCHEDULE ...................................................................................... 14
5.2 INSTALLING DISK LOC PIN .......................................................................................15
5.3 CHIPPER BLADE MAINTENANCE ............................................................................. 15
5.4 REMOVING THE BLADES .......................................................................................... 15
5.5 SHARPENING THE BLADES ...................................................................................... 16
5.6 INSTALLING THE BLADES ......................................................................................... 16
5.7 SETTING BLADE CLEARANCE..................................................................................16
5.8 DRIVE BELT ADJUSTMENT .......................................................................................17
5.9 DRIVE BELT REPLACEMENT .................................................................................... 18
5.10 REPLACING ROTOR BEARINGS .............................................................................18
5.11 TRAILER SERVICE TIPS ..........................................................................................19
5.12 CLEARING A PLUGGED DISK.................................................................................. 20
5.13 LUBRICATION ...........................................................................................................20
TROUBLESHOOTING .......................................................................................................21
SPECIFICATIONS ..............................................................................................................23
BOLT TORQUE ...................................................................................................................24
OPTIONS ...........................................................................................................................25
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4 INCH CHIPPER
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1
Section
SAFETY
1.1 SAFETY ALERT SYMBOL
The Owner/Operator's manual uses this symbol to alert
you of 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.
CAUTION
Indicates a potentially hazardous situation that, if not
avoided, may result in minor or moderate injury.
1.2 EMISSION INFORMATION
Under California Law
and 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 ammable
agricultural crops, 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 or diesel fuel (hydrocarbons). Therefore,
your power equipment must be equipped with a spark
arrester mufer in continuous effective working order. The
spark arrester must be attached to the engine exhaust
system in such a manner that ames or heat from the
system will not ignite ammable material.
ENGLISH
WARNING
Indicates a potentially hazardous situation that, if not
avoided, could result in death or serious injury.
DANGER
Indicates an imminently hazardous situation that, if
not avoided, will result in death or serious injury.
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 re marshal or forest service for specic information
about which regulations apply in your area.
The standard mufer installed on the engine is not equipped
with a spark arrester. One must be added before using
this machine 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.
4 INCH CHIPPER
1
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SAFETY
1.3 BEFORE OPERATING
1. Read and understand this owner’s manual. Be
completely familiar with the controls and the proper
use of this equipment.
2. Familiarize yourself with all of the safety and operating
decals on this equipment and on any of its attachments
or accessories.
3. Keep safety decals clean and legible. Replace missing
or illegible safety decals.
4. Obtain and wear safety glasses and use hearing
protection at all times when operating this machine.
5. Avoid wearing loose fitted clothing. Never operate this
machine while wearing clothing with drawstrings that
could wrap around or get caught in the machine.
6. Do not operate this machine
if you are under the influence
of alcohol, medications, or
substances that can affect your
vision, balance or judgement.
Do not operate if tired or ill.
You must be in good health to operate this machine
safely.
7. Do not operate this equipment in the vicinity of
bystanders. Keep the area of operation clear of all
persons, particularly small children. It is recommended
that bystanders keep at least 50 feet (15 meters) away
from the area of operation.
8. Do not allow children to operate this equipment.
9. Use only in daylight or good artificial light.
10. Do not run this equipment in an enclosed area. Engine
exhaust contains carbon monoxide gas, a deadly
poison that is odorless, colorless and tasteless. Do not
operate this equipment in or near buildings, windows
or air conditioners.
11. Always use an approved fuel container. Do not remove
gas cap or add fuel when engine is running. Add fuel
to a cool engine only.
12. Do not fill fuel tank indoors. Keep open flames, sparks,
smoking materials and other sources of combustion
away from fuel.
13. Do not operate machine without shields in place.
Failure to do so may cause serious injury or death.
14. Keep all guards, deflectors, and shields in good working
condition.
15. Before inspecting or servicing any part of this machine,
shut off the machine and make sure all moving parts
have come to a complete stop. Disconnect the battery
and remove the ignition key where applicable.
16. Check that all screws, nuts, bolts, and other fasteners
are secured, tightened and in proper working condition
before starting the machine.
17. Do not transport or move machine while it is operating
or running.
1.4 OPERATION SAFETY
1. Always stand clear of discharge area when operating
this machine. Keep face and body away from feed and
discharge openings.
2. Keep hands and feet out of feed and
discharge openings while machine is
operating to avoid serious personal
injury. Stop and allow machine to
come to a complete stop before
clearing obstructions.
3. Set up your work site so you are not endangering traffic
and the public. Take great care to provide adequate
warnings.
4. Do not climb on machine when operating. Keep proper
balance and footing at all times.
5. Check cutting chamber to verify it is empty before
starting the machine.
6. The disk will continue to rotate after being disengaged.
Shut off the machine and make sure all moving parts
have come to a complete stop before inspecting or
servicing any part of the machine. Disconnect the
battery and remove the ignition key if applicable.
7. Do not insert branches with a diameter larger than the
max chipper capacity into machine or machine damage
may occur.
8. When feeding material into machine, do not allow
metal, rocks, bottles, cans or any other foreign material
to be fed into the machine.
9. Ensure debris does not blow into traffic, parked cars,
or pedestrians.
2
4 INCH CHIPPER
Page 7
SAFETY
10. Keep the machine clear of debris and other
accumulations.
11. Do not allow processed material to build up in the
discharge area. This may prevent proper discharge
and can result in kickback of material through the feed
opening.
12. If the machine becomes clogged, the cutting mechanism
strikes any foreign object, or the machine starts
vibrating or making an unusual noise, shut off machine
immediately and make sure all moving parts have come
to a complete stop. Disconnect the battery and remove
the ignition key if applicable. After the machine stops: A)
Inspect for damage, B) Replace or repair any damaged
parts, and C) Check for and tighten any loose parts.
13. On electric start models, disconnect cables from battery
before doing any inspection or service. Remove key.
14. Check blade bolts for proper torque after every 8 hours
of operation. Check blades and rotate or resharpen
daily or as required to keep blades sharp. Failure to do
so may cause poor performance, damage or personal
injury and will void the machine warranty.
1.6 TOWING SAFETY
1. Connect hitch safety chains. Tighten trailer hitch bolts.
Do not attempt to tow the trailer if the vehicle is not
equipped with a 2” (50 mm) ball.
2. Do not exceed the maximum towing speed indicated
on tire sidewall. Inflate tires to manufacturer’s
specifications as stated on the tire sidewall.
3. Optimum towing performance can be achieved by
maintaining a horizontal trailer hitch.
4. Check wheel lug bolts periodically to ensure they are
tight and secure.
5. Make sure the jack stand and the rear stabilizer (where
applicable) on the trailer are in the UP position during
towing. Place the jack stand on a level surface and
secure it in the DOWN position before using.
6. Never allow passengers to ride on the machine.
7. If applicable, shut off fuel supply when towing.
ENGLISH
1.5 MAINTENANCE/STORAGE SAFETY
1. Before inspecting, servicing, storing, or changing
an accessory, shut off the machine and make sure
all moving parts have come to a complete stop.
Disconnect the battery and remove the ignition key
where applicable.
2. Replace any missing or unreadable safety decals.
Refer to the safety decal section for part numbers.
3. Allow machine to cool before storing in an enclosure.
4. Store the machine out of reach of children and where
fuel vapors will not reach an open flame or spark.
5. Never store this machine with fuel in the fuel tank
inside a building where fumes may be ignited by an
open flame or spark. Ignition sources can be hot water
and space heaters, furnaces, clothes dryers, stoves,
electric motors, etc.
6. Drain the fuel and dispose of it in a safe manner for
storage periods of three months or more.
8. Towing laws may vary in different countries/regions/
states. It is recommended that you contact your local
motor vehicle department for any special regulations
that pertain to towing and know the laws of any country/
region/state you travel through.
4 INCH CHIPPER
3
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SAFETY
1.7 SAFETY DECALS
1.9 SAFETY DECALS
See Section 1.8 for decal locations. Familiarize yourself with all of the safety and operating decals on the machine
and the associated hazards. See the engine owner’s manual or contact the engine manufacturer for engine safety
instructions and decals. Make certain that all safety and operational decals on this machine are kept clean and in good
condition. Decals that need replacement must be applied to their original locations.
1
KEEP HANDS AND FEET OUT OF INLET AND
DISCHARGE OPENINGS WHILE MACHINE IS
OPERATING TO AVOID SERIOUS PERSONAL
INJURY. STOP AND ALLOW MACHINE TO COME
TO A COMPLETE STOP BEFORE CLEARING
OBSTRUCTIONS.
2
READ AND UNDERSTAND THIS
OWNER/OPERATORS MANUAL.
BE COMPLETELY FAMILIAR
WITH THE CONTROLS AND
THE PROPER USE OF THIS
EQUIPMENT
OBTAIN AND WEAR SAFETY
GLASSES AND USE HEARING
PROTECTION AT ALL TIMES
WHEN OPERATING THIS
MACHINE.
BEFORE INSPECTING OR
SERVICING ANY PART OF THIS
MACHINE, SHUT OFF POWER
SOURCE, DISCONNECT SPARK
PLUG WIRE FROM SPARK PLUG
AND MAKE SURE ALL MOVING
PARTS HAVE COME TO A
COMPLETE STOP.
PN 12169
PN 12169
P/N 12172
PN 12172
P/N 12175
PN 12175
5
KEEP HANDS AND FEET OUT
OF INLET AND DISCHARGE
OPENINGS WHILE MACHINE IS
OPERATING TO AVOID SERIOUS
PERSONAL INJURY. STOP AND
ALLOW MACHINE TO COME TO
A COMPLETE STOP BEFORE
CLEARING OBSTRUCTIONS.
P/N 12250
PN 12250
6
CHECK BLADE BOLTS FOR
PROPER TORQUE AFTER EVERY
8 HOURS OF OPERATION.
CHECK BLADES AND ROTATE
OR RESHARPEN DAILY OR AS
REQUIRED TO KEEP BLADES
SHARP. REFER TO OWNERS
MANUAL FOR INSTRUCTIONS. FAILURE TO DO SO MAY CAUSE
POOR PERFORMANCE, DAMAGE OR PERSONAL INJURY AND WILL
VOID THE MACHINE WARRANTY.
PN 14942-00
PN 14942-00
7
PN 12173
PN 12173
3
DO NOT OPERATE THIS
EQUIPMENT IN THE VICINITY
OF BYSTANDERS. DO NOT
ALLOW CHILDREN TO OPERATE
THIS EQUIPMENT. ALWAYS
STAND CLEAR OF DISCHARGE
AREA WHEN OPERATING THIS
MACHINE. KEEP FACE AND BODY
AWAY FROM DISCHARGE AREAS.
PN 12174
PN 12174
4
DO NOT OPERATE MACHINE WITHOUT
SHIELDS IN PLACE. FAILURE TO DO SO MAY
CAUSE SERIOUS INJURY OR DEATH.
4
READ AND UNDERSTAND YOUR OWNERS MANUAL BEFORE
OPERATING. IF OWNERS MANUAL WAS NOT INCLUDED OR
YOU HAVE ANY QUESTIONS, PLEASE CALL 800.247.7335 OR
701.282.5520 (U.S.A.)
8
PN 12174
4 INCH CHIPPER
PN 32157-00
4.80-8
68
410 kPa, 60 psi
150
Page 9
SAFETY
PN 32327-00 Eng & Fr.
9
(32339-00 Esp. & Port)
PN 32328-00 Eng & Fr.
10
(32340-00 Esp. & Port)
*Decals 11-14 not for CE required machines.
PN 32330-00 Eng & Fr.
11
(32342-00 Esp. & Port)
PN 32332-00 Eng & Fr.
12
(32341-00 Esp. & Port)
1.8 SAFETY DECAL LOCATIONS
The numbers below correspond to the decals in Section 1.7. Familiarize yourself with all of the safety and operational
decals on the machine and the associated hazards. See the engine owner’s manual or contact the engine manufacturer
for engine safety instructions and decals. Make certain that all safety and operating decals on this machine are kept
clean and in good condition. Decals that need replacement must be applied to their original locations.
ENGLISH
*DECAL 4, #12174, IS LOCATED
UNDERNEATH THE BELT GUARD.
3
5
1
6
8
7
11
5
2
10
12
9
7
4 INCH CHIPPER
4
5
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2
ASSEMBLY
Section
2.1 ASSEMBLY NON-CE COMPLIANT
WARNING
Before beginning the assembly of the attachments on this
chipper, brace and/or stabilize the machine to prevent it from
moving, falling or tipping that may result in serious injury.
1. Align wheels(13) with lug bolts on axle hub and secure
to hub using four 1/2" lug nuts(12). Using as alternating
pattern, tighten wheel into place and torque lug nuts(12)
to 75 ft-lbs.
2. Place hitch pole channel(15) in position underneath
trailer deck at position for standard configuration and
mount to trailer deck using two 3/8 x 1" bolts(7), 3/8 flat
washers(6) and nylock nuts(11).
3. Apply reflectors(2) to the hitch pole assembly(17) as
shown. Next, place entire hitch pole assembly(17)
into the hitch pole channel(15) while aligning the front
two holes with the top two holes in the hitch pole
channel(15) flanges. Secure using two 3/8 x 3" bolts(5),
3/8 flat washers(6) and nylock nuts(11). Place hitch
pin(4) through bottom rear hole of flange (Figure 2.1)
and secure with cotter pin.
4. Attach chipper chute flap(3) to hopper assembly(14)
using the retaining strip(16), three 5/16 x 1" bolts(9)
5/16 flat washers(8) and nylock nuts(10).
12
14
16
3
13
9
8
10
7
Figure 2.2 Chipper chute
5. Mount that completed hopper assembly to the chipper
housing using four 3/8 x 1" bolts(7), 3/8 flat washers(6)
and nylock nuts(11).
11
6
11
15
5
4
6
11
6
7
17
2
Figure 2.3 Chipper deflector weldment
Figure 2.1, Hopper and hitch assembly.
6
4 INCH CHIPPER
Page 11
6. Move the chipper deflector weldment located inside
the chipper housing to the down position (Figure 2.3).
7. Place discharge cap assembly(18) onto the housing
by aligning the bolt holes of the discharge cap(18) and
the bolt holes in the housing. Make sure the discharge
cap is in the proper position and place the two 3/8 x 5
1/2" bolts(1) through the bolt holes. Secure by adding
3/8 flat washers(6) and nylock nuts(11) to the 3/8 x 5
1/2" bolts(1).
ASSEMBLY
19
ENGLISH
14
17
6
11
18
1
Figure 2.4, Standard configuration discharge cap.
6
1
5
7
15
9
Figure 2.6, CE Compliant hitch
3. Place hitch pole channel(18) in position underneath
trailer deck at position for standard configuration and
mount to trailer deck using two 3/8 x 1" bolts(12), 3/8
flat washers(9) and nylock nuts(15).
15
9
18
15
12
9
16
3
15
9
Figure 2.5 Discharge cap
2.2 ASSEMBLY CE COMPLIANT
1. Mount the wheels to the axle as described in step 1
of Section 2.1
2. Attach the jack stand(17) to the hitch pole(19), as shown
in Figure 2.5, using 3/8 x 3" bolt(7), 3/8 flat washer(9)
and nylock nut(10). Attach the nylon lanyard(1) to the
jack stand(17) using 1/4 x 3/4" bolt(6) and 1/4 nylock
nut. Swing jack stand(17) up into the stored position
and secure by using the hitch pin(5) and cotter pin.
4 INCH CHIPPER
11
10
8
4
11
20
10
13
13
2
Figure 2.7, Exploded view illustration for
assembly demonstration purposes
4. Now, insert hitch pole assembly into the mounted hitch
pole channel(18) making sure the end of the hitch pole
reaches the axle. Temporarily secure the hitch pole
assembly in place using two 3/8 x 3 1/4" bolts(16), four
3/8 washers(9) and two 3/8 centerlock nuts(11) through
the aligned mounting holes of the hitch pole channel(18)
and the hitch pole. (Do not tighten hardware securely
until step 5 is complete.)
7
Page 12
ASSEMBLY
2.2 ASSEMBLY CE COMPLIANT (CONT.)
5. Place hitch plates(20) over the axle and secure to the
hitch pole using two 1/2 x 3 1/4" bolts(13), four 1/2 flat
washers(10) and two centerlock nuts(11).
6. Attach safety chains(4) to the 3rd hole from the coupler
end of the hitch pole using a 3/8 x 3 1/2" bolt(8), two
3/8 washers(9) and 3/8 nylock nut(15).
7. Mount the 50mm coupler(2) to the hitch pole using two
1/2 x 3 1/4" bolts(13), 1/2 flat washers, and centerlock
nuts.
8. Apply reflectors(2) to the hitch pole assembly as
shown.
9. Follow assembly steps 4-7, as detailed in Section 2.1,
to complete the assembly process.
2.3 OPTIONAL CONFIGURATION
This model can be recongured so the axle is under the
engine and the discharge is right above the hitch. This
conguration is convenient for:
• Lightening the weight over the hitch or
• Directing discharged materials into a truck bed
using the optional Elevated Discharge Tube Kit
(PN 74634-00). See Figure 2.11.
FOLLOW THESE STEPS TO RECONFIGURE THE
CH4400:
1. Disconnect the axle brackets from trailer by removing
the two bolts running through the trailer. Remove the
two bolts that hold left hand trailer light bracket to the
trailer.
2. Disconnect the hitch from the trailer.
3. Remove the bolts connecting the right hand trailer light
bracket to the trailer.
4. Hoist the trailer up and turn it 180 degrees.
5. Locate the holes on the sides of the trailer closest to
the engine. Align these holes with the top holes on the
axle support brackets located on the axle. Attach with
one 3/8 x 1" bolt and one 3/8 x 1-1/4" bolt on each
side.
6. Reattach the hitch and light brackets to the trailer.
7. Test the blinker and brake lights to ensure the wiring is
properly connected.
Figure 2.8. Detaching light brackets, axle, and hitch
8
4 INCH CHIPPER
Page 13
Figure 2.9. Standard configuration
ASSEMBLY
2.4 CHECK MOTOR OIL
Check the oil level and, if needed, ll the engine crankcase
with the type and amount of oil specied in the engine
owner’s manual.
ENGLISH
NOTE
The optional trailer conguration can be used with
the Discharge Tube Kit (PN 74634-00) to discharge
materials into a pickup bed. Use the standard
conguration to discharge materials directly onto the
ground.
Figure 2.10. Optional trailer configuration
(shown here with optional Discharge Tube Kit, PN 74634-00)
Figure 2.11. Subaru oil fill (located on each side of engine)
2.5 FILL THE TANK
WARNING
Gasoline and diesel fuels are highly ammable and
their vapors are explosive. To prevent personal injury
or property damage:
Store fuel only in approved containers, in well ventilated,
unoccupied buildings, away from sparks or ames.
A container with a capacity of 2 gallons or less with
a pouring spout is recommended. Do not ll the fuel
tank while the engine is hot or running, since spilled
fuel could ignite if it comes in contact with hot parts
or sparks from ignition. Do not start the engine near
spilled fuel. Never use fuel as a cleaning agent. DO
NOT MIX OIL WITH FUEL.
Use only those types of fuels that are recommended in
your engine owner’s manual.
1. Stop engine, wait for all parts to stop moving and
disconnect spark plug wire. Remove key from key
switch. Allow the engine and muffler to cool for at least
three minutes.
2. Clean area around fuel fill cap and remove cap.
3. Using a clean funnel, fill fuel tank to 1/2” below bottom of
filler neck to provide space for any fuel expansion. Install
fuel fill cap securely and wipe up any spilled gasoline.
4 INCH CHIPPER
9
Page 14
3
FEATURES & CONTROLS
Section
3.1 CHIPPER CONTROLS
1. Hitch: Always use 2" (50 mm) ball and safety chains.
2. Jack stand: Always have in UP position and clear from ground when moving. When in use, place in DOWN position
on a level surface.
3. Belt guard: Never remove guards when chipper is in use.
4. Rotor access cover: Remove to expose chipper blades.
5. Discharge cap: Chipped materials exit through the discharge cap. A discharge tube is an available alternative.
6. Chipper chute: Feed materials to be chipped through the chipper chute.
7. Chipper engagement lever: Pull lever up for start position. Push lever down for chipping position.
6
4
1
5
3
7
2
10
4 INCH CHIPPER
Page 15
3.2 ENGINE CONTROLS
FEATURES & CONTROLS
NOTE
For more detailed engine information, see the engine
owners manual provided with the chipper.
1. Engine choke: Use when starting a cold engine. Push lever to ON position when starting. Push to OFF position
when engine is running.
2. Fuel cut-off switch: Push lever to the ON position to start and run engine.
3. Engine throttle: Changes engine speed. Push lever all the way to the ON position for full throttle operation. Push
the opposite way for engine idle. Push all the way to the OFF position to shut engine off. Refer to engine manual for
further engine operating instructions.
4. Starter cord: To start, pull the cord until light resistance is felt and then pull briskly.
5. Engine switch: Turn to ON position to start and run engine. To stop, turn to OFF position.
6. Fuel tank: Use unleaded gasoline with a pump octane rating of 86 or higher.
ENGLISH
4 INCH CHIPPER
Low oil warning light
11
Page 16
4
Section
OPERATION
CAUTION
Move the machine to a clear, level area outdoors before
starting. Do not operate in the vicinity of bystanders.
Make sure the cutting chamber is empty before starting.
WARNING
Before operating your machine, be sure you read
and understand all safety, controls and operating
instructions in this owner’s manual and on your
machine. Failure to follow these instructions can
result in serious injury or property damage.
4.1 STARTING ENGINE
BEFORE ATTEMPTING TO START THIS MACHINE,
MAKE SURE THE BELT IS DISENGAGED AND THE
HANDLE IS IN THE "START" POSITION.
NEVER ATTEMPT TO START MACHINE WITH THE
DRIVE BELT ENGAGED.
1. Check engine oil level before starting.
2. Turn the fuel cut-off switch to the ON position.
3. Turn the engine switch to the ON position.
4.2 OPERATING THE CHIPPER
After the engine has been started and properly allowed
to warm to an operating temperature, you can begin
operating the chipper. To properly start and operate the
chipper, follow the steps below:
1. AFTER engine is warmed and ready for use, move the
throttle control back to approximately 25% of full throttle.
2. When engine is running at approximately 25% of
full throttle, SLOWLY engage belt by using the belt
engagement lever.
DO NOT engage the belt with engine running at high
RPM.
Engaging belt while engine is running at high
RPM will result in signicant belt squealing and
damage.
Engaging belt while engine is running at high RPM
can also damage vital drive components of the
chipper.
3. If the chipper engine stalls while engaging the belt,
return the engagement handle back to the START
position, restart engine, SLIGHTLY increase throttle
and attempt engagement again.
4. Place the throttle control midway between the SLOW
and FAST positions. Place the choke control into the
CHOKE position.
5. Place the chipper engagement lever in the START
position (see Chapter 5, Figure 5.3).
6. Pull the recoil starter until the engine starts. Make sure
the starting cord retracts.
7. Move the choke to the RUN position.
For a Cold Engine - gradually return the choke to the
OFF position after the engine starts and warms up.
For a Warm Engine - Use of choke may not be
necessary for restart of a warm engine. If it is needed,
return choke to the OFF position once the engine starts.
4. Once the belt is engaged, SLOWLY increase throttle
to 100% or full throttle.
5. ALWAYS run the chipper at 100% or full throttle when
chipping material.
CAUTION
Obtain and wear safety glasses at all times when
operating the machine.
Do not wear loose fitting clothing.
The operator should always wear heavy boots, gloves,
pants and a long-sleeved shirt.
Use common sense and practice safety to protect
yourself from branches, sharp objects, and other
harmful objects.
12
4 INCH CHIPPER
Page 17
OPERATION
4.3 CHIPPER OPERATION GUIDELINES
1. Limbs fed in to the chipper chute must be 4 inches
10 cm) in diameter or less. Trim side branches that
cannot be bent enough to feed into the chipper chute.
Hold small diameter branches together in a bundle and
feed in simultaneously.
2. ALWAYS run engine at full operating speed before
starting to chip material.
3. Alternate green or fresh cut material with dry
material to lubricate the chipping blades for longer
life and better performance. Chipping dead, dry
material will create heat and dull the chipping blades
quickly.
4. ALWAYS feed brush from the side of the chipper
chute, rather than from the front. Step aside to avoid
being hit by the brush moving into the chipper.
5. ALWAYS place limb, butt end first, into the chipper
chute until it contacts the chipper blades. The actual
feed rate of the limb into the chipper will depend on the
type of material fed and sharpness of the cutting blades.
WARNING
Never lean over the chipper chute to push objects into
the cutting device. Use a push stick or brush paddle.
Never use shovels or forks to feed brush. They can
cause extensive damage if they contact the blades.
In addition, metal pieces can be ejected from the
chipper chute and cause serious injury or death.
Never feed brush into the chute with your feet.
Never use hands or feet to clear materials that build up in
the chute.
4.4 SLOWING AND STOPPING THE CHIPPER DISK AND ENGINE
NEVER disengage the belt as part of the stopping or
shut down process. The belt should remain engaged
during the entire shutdown process.
Leaving the belt engaged is a vital part of proper shutdown and ensures the rotor stops spinning in conjunction with the engine shutting off.
ENGLISH
6. If the engine slows to where it may stall, stop feeding
material and allow the engine to recover. Feed material
more evenly.
7. If the chipper jams, remove the branch and rotate it
before reinserting it into the chute. Alternately insert
and retract the limb or insert continuously at a rate that
will not kill the engine.
8. NEVER use the belt engagement to clear a plugged
rotor. This may cause belt damage. Refer to the
instructions for clearing a plugged rotor in the Service
and Maintenance section.
9. NEVER attempt to clear a plugged rotor or discharge
with the engine running. ALWAYS shut engine OFF
and remove the spark plug wire before servicing any
part of this machine
10. NEVER attempt to chip pieces of metal, rock, bottles,
cans or other foreign objects.
TO PROPERLY SLOW DOWN AND STOP THE DISK
AND ENGINE:
1. WITH THE BELT STILL ENGAGED, SLOWLY move the
throttle to the SLOW position with the belt still engaged.
2. Allow the engine to run at slow idle for 30-60 seconds.
3. Stop the engine by moving the throttle to the STOP
position or turning off the ignition switch.
4. Allow disk to come to a complete stop.
5. Once the engine is off and the disk has completely
stopped, the belt can be disengaged by moving the
belt engagement handle back to the START position.
4 INCH CHIPPER
13
Page 18
5
Section
SERVICE & MAINTENANCE
5.1 MAINTENANCE SCHEDULE
WARNING
The items listed in this service and maintenance schedule
are to be checked, and if necessary, corrective action
taken. This schedule is designed for units operating under
normal conditions. If the unit is operating in adverse or
severe conditions, it may be necessary for the items to be
checked and serviced more frequently.
To prevent personal injury or property damage: shut
off engine and make sure that all moving parts have
come to a complete stop before, servicing, adjusting or
repairing. Disconnect the battery and remove ignition
key where applicable.
SEE ENGINE OWNER’S MANUAL FOR FURTHER
ENGINE MAINTENANCE AND TROUBLESHOOTING
INFORMATION.
SERVICE AND MAINTENANCE SCHEDULE
FREQUENCY
REFER TO
COMPONENT
AIR CLEANER CHECK AND CLEAN (1)
AIR INTAKE CLEAN (1)
ENGINE OIL CHANGE (1)
FUEL FILTER REPLACE
SPARK PLUG CHECK CONDITION AND GAP
ENGINE OIL CHECK/FILL
FUEL TANK CHECK/FILL
ALL INTERNAL AND EXTERNAL NUTS
AND BOLTS
TIRE PRESSURE CHECK
CHIPPER ANVIL
CHIPPER BLADES
ENTIRE MACHINE CLEAN
DRIVE BELT CHECK
BELT TENSION CHECK
BELT/PULLEY ALIGNMENT CHECK
GREASE ZERKS LUBE
WHEEL BEARINGS CHECK AND REPACK
(1) PERFORM MORE FREQUENTLY UNDER EXTREMELY DUSTY CONDITIONS.
(2) PERFORM MORE FREQUENTLY WHEN CHIPPING DRY OR DIRTY WOOD.
As the Limited Warranty states, failure by the Owner to perform normal maintenance will void the machine’s warranty.
The aggressive, high-speed nature of chipping REQUIRES THE OWNER TO PERFORM THE ABOVE LISTED NORMAL
MAINTENANCE. Special consideration to maintain and re-torque the CHIPPER ANVIL, CHIPPER BLADES, AND ALL
INTERNAL AND EXTERNAL NUTS AND BOLTS is the sole responsibility of the Owner. Failure by the Owner to do so shall
be cause for denial of warranty.
MAINTENANCE
REQUIRED
CHECK TIGHTNESS
CHECK CLEARANCE AND RE-
TORQUE TO 75 FT-LBS. (2)
CHECK SHARPNESS AND RE-
TORQUE TO 25 FT-LBS
ENGINE
OPERATOR’S
MANUAL
BEFORE
EACH
USE
EVERY
8
HOURS
EVERY
25
HOURS
EVERY
50
HOURS
EVERY
YEAR
14
4 INCH CHIPPER
Page 19
SERVICE & MAINTENANCE
WARNING
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
5.2 INSTALLING DISK LOC PIN
When working on the disk assembly, use the lock
mechanism at all times (Figure 5.1). Follow the steps below
to install the disk lock:
1. Remove the chipper deflector.
2. Rotate the chipper disk until the hole on the chipper
paddle is aligned with the hole on the chipper housing
(Figure 5.1).
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
• There are cracks, broken corners or nicks greater than
1/8" (see below).
CRACK
GREATER
THAN 1/8”
NICK GREATER
THAN 1/8”
ENGLISH
3. Install a punch or screwdriver into the holes.
NOTE
One of the 3/8 x 5-1/2" bolts from the chipper deflector
can also be used to lock the disk.
DISK LOCK
HOLE
MATCHING HOLE
ON DISK PADDLE
CHIPPER
DISK
BROKEN
CORNER
• The base of the cutting edge is worn or has been resharpened so that it no longer extends past the chipping
slot (see below).
CHIPPER
DISC
CHIPPING
SLOT
NEW
BLADE
CHIPPER
DISC
CHIPPING
SLOT
BLADE IS
TOO SHORT,
MUST BE
REPLACED
5.4 REMOVING THE BLADES
WARNING
Chipping blades are sharp! Use caution when working
on machine to avoid injury.
Figure 5.1 Disk lock
5.3 CHIPPER BLADE MAINTENANCE
The chipper blades will eventually become dull, making
chipping difcult and adding extra strain on the machine.
CHECK THE SHARPNESS OF THE BLADES EVERY
5 - 15 HOURS OF OPERATION AND SHARPEN AS
NEEDED.
Your blades need to be sharpened if:
• Machine vibrates severely when material is fed into the
chipper.
• Small diameter branches do not self-feed.
• Chips discharge unevenly or have stringy tails,
especially when chipping green branches.
Before you sharpen the chipping blades, check for
permanent damage. Replace the blade if:
4 INCH CHIPPER
1. Remove the chipper deflector from the chipper housing
by removing the two 3/8 x 5-1/2" bolts securing the
discharge cap or optional discharge tube to the chipper
housing and loosening the 5/6" flange nuts on the
weldment bolts. Remove the discharge cap or optional
discharge tube.
2. Install the disk lock (Section 5.2). The disk is now
restrained for removing the blades. To access the
remaining blade, remove the punch or screwdriver,
reposition the disk and return the punch or screwdriver
to the disk lock hole.
3. Remove the two bolts that hold the blade to the disk.
The hardware can be reused. Repeat for remaining
blade. The blades have two edges and can be reversed
one time before sharpening.
4. Inspect blades to see if cracks or nicks are visible. If
cracks are present, replace the blades. Replace the
blade if nicks cannot be removed by sharpening.
15
Page 20
SERVICE & MAINTENANCE
WARNING
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
5.5 SHARPENING THE BLADES
The blades can be ground on a bench grinder or by a
professional.
1. Never sharpen or grind the mounting surfaces of the
blades. This will cause the edge to roll and the blade will
be damaged, resulting in poor chipping performance.
2. Regrind the angled edge of the chipping blades to 45
degrees. Make sure some type of fixture is used to
correctly hold the blade at the proper angle.
3. Be careful when grinding so that the blade does not
become overheated and change color. This will remove
the heat-treated properties.
4. Use short grinding times and cool with water or some
type of liquid coolant.
5. Remove an equal amount off each blade to maintain
rotor balance.
6. Small imperfections such as nicks and burrs on the flat
side of the blade will not affect the chipping performance
of the machine.
7. For blades that have been repeatedly sharpened,
ensure that the sharpened surface extends past the
chipping slot opening. If it does not extend past the
opening, the blades should be replaced.
SHARPENED
SURFACE
MOUNTING SURFACE
(DO NOT GRIND)
SHARPENED
SURFACE
can provide better access for measuring the chipping
blade clearance. To adjust the blade clearance, proceed
as follows:
1. Rotate the disk until a chipping blade is even with the
chipping anvil.
2. Measure the amount of clearance between the chipping
blade and chipper anvil from inside of the chipper
housing. The minimum distance between the chipping
blade and the chipping anvil should be 1/16" (Figure
5.2).
3. Adjust the anvil by loosening the 5/16 x 5/8" bolts
holding the anvil to the disk cover and sliding the anvil
inward or outward until the desired measurement is
achieved.
4. Torque the bolts to 17 Ft-lbs.
5. Rotate the rotor to ensure the remaining blade clears
the anvil by 1/16" to 1/8" (not to exceed 1/8").
6. If the chipper chute was removed, reinstall it.
WARNING
It is important to ensure that the minimum gap between
the chipping anvil and ALL chipping blades is 1/16". All
chipping blades should be rotated until even with the
chipping anvil and then measured. Failure to do so can
result in the chipping blades striking the chipping anvil,
causing serious injury or death.
.50”
45˚
MOUNTING SURFACE
(DO NOT GRIND)
5.6 INSTALLING THE BLADES
1. Lock disk assembly (Section 5.2).
2. Place a blade on the disk and attach using original
hardware. Torque the bolts to 120 ft.-lbs (162 Nm).
Repeat for the remaining blade.
3. Reinstall the chipper discharge cap or optional
discharge tube (Section 2.2).
5.7 SETTING BLADE CLEARANCE
The chipping blades should clear the chipping anvil, located
directly under the chipper chute, by 1/16" to 1/8". Removing
the chipper chute is NOT required for setting the chipping
blade clearance. However, removing the chipper chute
NOTE
If the chipping anvil edge is damaged or worn unevenly,
remove the three 5/16" bolts and washers holding the
anvil to the disk cover and use one of the other three
edges. Adjust for correct measurement.
DISK
CHIPPER
BLADE
ANVIL
1/16"
Figure 5.2 Chipper blade and anvil clearance
16
4 INCH CHIPPER
Page 21
SERVICE & MAINTENANCE
WARNING
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
5.8 DRIVE BELT ADJUSTMENT
Check the condition of the drive belt(s) annually or after
every 25 hours of operation, whichever comes first. Replace
a cracked, frayed, worn or stretched drive belt. Only replace
drive belt with original banded type belt. Do not use single
type belts. To adjust the drive belt(s), proceed as follows:
1. Place the chipper engagement lever in the START
position (see Figure 5.3).
Figure 5.3 Engagement handle in START position
b. Loosen the four carriage bolts attaching the engine
plate to the trailer.
c. Locate the two 5/16 x 3" bolts and 5/16" flange
nuts located on the side of the chipper between the
trailer and the engine plate (see Figure 5.5).
Figure 5.5 Adjustment bolts
d. Tighten both 5/16" bolts equally to move the
engine away from the chipper housing until the
belt deflection is about 7/16" when a 20 lb. load is
placed against the belt (see Figure 5.6).
e. Tighten the four carriage bolts securing the engine
plate to the trailer.
ENGLISH
2. Shut engine off.
3. Remove the seven 5/16 x 3/4" bolts securing the
belt shield to the shield weldment. Remove the belt
shield.
4. To increase tension on the belt, do the following:
a. Move the engagement lever to the CHIPPING
position (see Figure 5.4).
f. Tighten both 5/16" flange nuts to ensure the proper
deflection is maintained.
6. To loosen tension on the belt, do the following:
a. Move the engagement lever to the CHIPPING
position.
b. Loosen the four carriage bolts attaching the engine
plate to the trailer.
c. Loosen both 5/16" flange nuts.
d. Loosen both 5/16 x 3" adjustment bolts equally and
push the engine plate against the bolts. Loosen
bolts until the belt deflection is about 7/16" when
a 20 lb. load is placed against the belt (see Figure
5.6).
e. Tighten the four carriage bolts securing the engine
plate to the trailer.
f. Tighten both 5/16" flange nuts to ensure the proper
deflection is maintained.
Figure 5.4 Engagement handle in CHIPPING position
4 INCH CHIPPER
17
Page 22
SERVICE & MAINTENANCE
WARNING
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
7. If the bolts and nuts between the engine plate and the
trailer cannot be adjusted any further, and the tension
needs further adjustment, tighten the eyebolt until the
appropriate deflection is achieved.
8. Replace the belt if no adjustment is left (Section 5.9).
9. Reinstall the belt shield.
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
5.9 DRIVE BELT REPLACEMENT
1. Shut engine off.
2. Place the chipper engagement lever in the START
position (see Figure 5.3).
3. Remove the belt guard by removing the 5/16" bolts.
4. Remove 3/8" x 5" bolt and the idler pulley.
5. Place the chipper engagement lever in the CHIPPING
position (see Figure 5.4).
6. Loosen the four carriage bolts attaching the engine
plate to the trailer.
7. Locate the two 5/16 x 3" bolts and 5/16" nuts located
on the side of the chipper between the trailer and the
engine plate.
8. Loosen both 5/16" flange nuts.
9. To release the tension on the belt, loosen both 5/16
x 3" bolts equally and slide the engine towards the
chipper housing.
10. Remove the old belt and install the new belt. Loosen
the belt guide if needed.
11. Adjust the drive belt.
12. Place the chipper engagement lever in the START
position (see Figure 5.3).
13. Reinstall 3/8" x 5" bolt and the idler pulley.
14. Place the chipper engaggement lever in the CHIPPING
position (see Figure 5.4)
15. Position the belt guide 1/8" over the belt and tighten
bolts.
16. Reinstall the belt guard.
Figure 5.6 Drive belt drive replacement
5.10 REPLACING ROTOR BEARINGS
REMOVING THE OLD BEARINGS
1. Place the chipper engagement lever in the START
position (see Figure 5.3).
2. Shut engine off.
3. Remove the belt guard by removing the 5/16" bolts.
4. Remove the idler pulley.
5. Place the engagement lever in the CHIPPING position
(see Figure 5.4)
6. Remove the belt.
7. To remove the rotor sheave, do the following:
7a. Remove the three bolts securing the rotor sheave
to the rotor shaft.
7b. Reinstall the bolts into the second set of holes.
Gradually tighten bolts equally to push the sheave
off the rotor shaft.
8. To remove the front bearing, do the following:
8a. Remove the snap ring.
8b. Loosen the setscrews securing the front bearing
to the rotor shaft.
8c. Remove the two 1/2 x 1-1/2" carriage bolts and
1/2" centerlock nuts holding the front bearing to
the chipper housing.
8d. Slide the front bearing off the rotor shaft.
18
8e. Remove the second snap ring.
NOTE
Removal of the rear bearing is dependent upon
removal of the front bearing.
9. To remove the rear bearing do the following:
9a. Remove the seven 5/16" nylock nuts and washers
securing the disk cover to the chipper housing.
4 INCH CHIPPER
Page 23
SERVICE & MAINTENANCE
WARNING
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
Remove the disk cover.
9b. Loosen the set screws securing the back bearing
to the rotor shaft.
9c. Remove the two 1/2 x 1-1/2" bolts and 1/2"
centerlock nuts holding the back bearing to the
chipper housing.
9d. Slide the chipper disk out from the chipper housing
until the bearing slides off the rotor shaft.
INSTALLING THE NEW BEARINGS
1. Replace bearing and center in the bearing opening.
2. Tighten the two 1/2 x 1-1/2” carriage bolts and 1/2”
centerlock nuts securing the rear bearing to the chipper
housing. Torque to 75 ft-lb.
3. Slide the rotor back into the chipper housing.
4. Slide a snap ring onto the rotor shaft, making sure that
it is seated properly on the rotor.
5. Slide the bearing shim, front bearing and second snap
ring on the rotor, making sure that the second snap ring
is seated properly on the rotor.
6. Reinstall the disk cover using seven 5/16” nuts and
washers.
7. Next, the rotor must be centered vertically and
horizontally inside the chipper housing. To do this,
measure the distance from the rotor to the inside edge
of the chipper housing at four points around the disk.
Adjust the rotor until all four points are an equal distance
from the edge of the chipper housing or use Alignment
Tool 76302-12. Finish tightening the 1/2 x 3/4” bolts and
nuts securing the front bearing to the chipper housing
to a torque of 75ft-lbs.
8. Tighten the two set screws located on both the front
and rear bearings, securing the bearings to the rotor
shaft. Torque set screws to 160 inch-lbs.
9. Slide the bushing and sheave onto the shaft.
10. Tighten the two 1/2 x 3/4” bolts and nuts securing the
front bearing to the chipper housing. Torque to 75 ft-
lbs.
11. Using a straight edge, align the sheave with the other
pulley to ±1/16”. Keep in mind that the sheave will shift
approximately 1/16” to 1/8” away from you once it is
tightened (see Figure 5.7).
12. Insure the pulley drive key is completely seated under
the pulley and tighten the set screw.
13. Remove the three screws in the sheave and put them in
the other three threaded holes on the sheave. Tighten
the screws equally until the bushing tightens. Torque
to 108 inch-lbs.
14. Recheck pulley alignment. Pulley faces should line
up. If not, readjust and repeat alignment check (see
Figure 5.7).
ENGLISH
5.7 Checking pulley alignment
15. Replace the belt.
16. Adjust the drive belt so that the belt deflection is 7/16”
when a 20 lb. load is placed against the belt (see
Figure 5.6). To do this, adjust both 5/16” adjustment
bolts equally.
17. If the bolts and nuts between the engine plate and the
trailer cannot be adjusted any further, and the tension
needs further adjustment, tighten the eyebolt until the
appropriate deflection is achieved.
18. Once correct belt deflection has been achieved, tighten
both 5/16” flange nuts to maintain it.
19. Tighten the four carriage bolts attaching the engine
plate to the trailer.
20. Reinstall the belt guide.
21. The chipper engagement lever should be in the START
position (up).
22. Reinstall the idler assembly.
23. Attach the chipper chute to the disk cover.
24. Attach the discharge cap.
25. Replace the belt guards.
5.11 TRAILER SERVICE TIPS
1. Check wheel bolt torque monthly.
2. Check air pressure in tires monthly.
3. Check and repack wheel bearings with grease every
12 months.
4. When towing, always connect the safety chains. Make
sure trailer hitch bolts are tight.
5. Check trailer lights periodically.
4 INCH CHIPPER
19
Page 24
SERVICE & MAINTENANCE
WARNING
DISCONNECT SPARK PLUG WIRE FROM SPARK PLUG AND MAKE SURE ALL MOVING PARTS HAVE COME TO A COMPLETE STOP.
BEFORE INSPECTING OR SERVICING ANY PART OF THIS MACHINE, SHUT OFF POWER SOURCE,
5.12 CLEARING A PLUGGED DISK
1. Remove the chipper deflector and/or disk cover.
Remove debris, taking care to avoid the chipper blades
which can be extremely sharp.
2. Once debris is removed, replace the chipper deflector
and/or disk cover.
5.13 LUBRICATION
Lubricate the machine periodically with a lithium-based
grease. Extreme working conditions will require more
frequent greasing.
Grease the following points every 50-100 hours of
operating time:
IMPORTANT
Polyurea and lithium-based greases are not compatible.
Mixing the two grease types may lead to premature
failure.
NOTE
Do not over grease bearings. Overlling can lead to
excessive heat and/or unseating of the seals. Add
grease slowly and under light pressure. Whenever
possible, rotate bearing slowly while lubricating.
Engagement Lever
20
Rear Rotor Bearing
Front Rotor Bearing
4 INCH CHIPPER
Page 25
6
Section
TROUBLESHOOTING
Before performing any of the corrections in this troubleshooting chart, refer to the appropriate information contained in
this manual for the correct safety precautions and operating or maintenance procedures. Contact your dealer or the
factory for service problems with the machine.
PROBLEM POSSIBLE CAUSES REMEDY
Improper control settings. Use proper settings.
Lack of fuel. Fill fuel tank.
Engine will not start.
Engine or rotor stalls or
stops.
Spark plug disconnected. Connect spark plug.
Dirty, stale or contaminated gas. Rell gas tank with fresh, clean unleaded regular gasoline.
Internal engine problems. See your dealer.
Obstructed discharge. Use branch or similar object to clear discharge.
Plugged rotor. Clear rotor. Feed material more evenly.
Feeding material that is too large. Reduce size of material.
ENGLISH
Chipper does not chip.
Engine overheats.
Hard to feed chipper;
requires excessive power
to chip.
Dull chipper blades. Rotate or sharpen blades.
Drive belts loose or worn. Inspect drive belts, adjust or replace if needed.
Attempting to feed branches that
are too large.
Broken or missing chipper blades Replace blade.
Cooling system plugged. Clean cooling fan and ns.
Improper oil level. Fill engine to correct oil level. Refer to the engine owners manual.
Dull chipper blades. Reverse or sharpen blades.
Obstructed discharge. Use branch or similar object to clear discharge.
Improper blade clearance. Adjust clearance between chipper anvil and chipper blades.
Limit branch size to 4 inches in diameter.
4 INCH CHIPPER
21
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TROUBLESHOOTING
Obstructed discharge. Use branch or similar object to clear discharge.
Shredder requires
excessive power or stalls.
Engine stalls or belt
squeals when engaging
clutch.
Material from chipper
wraps around rotor shaft
Excessive vibration while
running.
Plugged rotor. Clear rotor, feed material into shredder more evenly.
Wet or green material will not
discharge.
Engaging clutch too fast. Engage clutch more slowly.
Plugged rotor. Clear rotor. Feed material more evenly.
Belt tension too loose. Replace belt or spring.
Stringy, green material bypasses
chipper blades.
Dull chipper blades. Sharpen blades.
Improper blade clearance. Adjust clearance between anvil and chipper blades.
Drive system vibration.
Rotor out of balance.
Alternately feed dry material or install larger discharge screen.
Rotate branch or material when feeding to cut completely.
Check drive belts and pulleys for bad or worn areas. Check for
dull chipper blades or shredder knives.
Inspect rotor for broken or missing chipper blades and shredder
knives; replace if needed. Check rotor to see if it wobbles. Check
to see if rotor is assembled correctly.
Rotor will not turn.
Cannot engage clutch.
Excessive belt wear.
Chipper blade to anvil clearance
is incorrect.
Drive belt too loose or broken. Replace belt or spring.
Obstructed discharge. Use branch or similar object to clear discharge.
Plugged rotor. Clear rotor. Feed material more evenly.
Improper belt installation; belt not
under belt guide.
Improper belt tension. Adjust belt tension. Replace belt or spring if needed.
Not using correct belt.
Pulley(s) damaged or worn. Replace pulley(s).
Pulley(s) not in alignment. Align pulley(s) with straight edge.
Belt(s) tension too loose. Replace belt or spring.
Set chipper blade/anvil clearance to recommended distance
(1/16” to 1/8”).
Install belt properly; install belt under belt guide.
Contact your nearest authorized dealer to order the correct belt
for your chipper/shredder.
Trailer sways during
towing.
22
Tire air pressure not correct Check tire sidewall for ination limits.
4 INCH CHIPPER
Page 27
7
SPECIFICATIONS
Section
CH4400
DESCRIPTION ENGLISH METRIC
OVERALL SIZE 75" X 51" X 45" 190 x 129 x 114 cm
OVERALL WEIGHT 536 lbs. 243 kg
MAX CHIPPER CAP. 4.5" 11 cm
CHIPPER BLADES 2 REVERSIBLE (5" X 4" X 3/8") 2 REVERSIBLE 12.7 x 10.2 x .95 cm
DISC SIZE 14" DIA. X 1" 36cm x 2.5cm
DISC WEIGHT 49 lbs. 22.2 kg
4.5" X 9" (STANDARD) 11 x 23cm (STANDARD)
DISCHARGE SIZE
4.5" X 4.5" (OPTIONAL) 11 x 11cm (OPTIONAL)
ENGLISH
DRIVE TYPE BELT BELT
DRIVE BELT SIZE 2RB61 2RB61
TIRE SIZE 480/400 X 8 PNEUMATIC 480/400 X 8 PNEUMATIC
ENGINE 404cc SUBARU 404cc SUBARU
FUEL TANK CAPACITY 1.85 gallon 7 liters
4 INCH CHIPPER
23
Page 28
SPECIFICATIONS
BOLT TORQUE
The tables below are for reference purposes only and their use by anyone is entirely voluntary, unless otherwise noted.
Reliance on their content for any purpose is at the sole risk of that person and any loss or damage resulting from the
use of this information is the responsibility of that person.
SAE
SAE - 2
SAE - 5
SAE - 8
BOLT DIAMETER
Grade
and
Head
A
Markings
ENGLISH
BOLT DIAMETER (A)
1/4” 7.5 5.5 11 8 16 12
5/16” 15 11 23 17 34 25
3/8” 27 20 41 30 61 45
7/16” 41 30 68 50 95 70
1/2” 68 50 102 75 149 11 0
9/16” 97 70 149 110 203 150
5/8” 122 90 203 150 312 230
3/4” 217 160 353 260 515 380
7/8” 230 170 542 400 814 600
1” 298 220 786 580 1220 900
1-1/8” 407 300 1085 800 1736 1280
1-1/4” 570 420 2631 1940 2468 1820
SAE 2 SAE 5 SAE 8
N.m Ft-lb. N.m Ft-lb. N.m Ft-lb.
BOLT TORQUE *
* Torque value for bolts and
capscrews are identified by
their head markings.
Torque figures indicated above
are valid for non-greased or
non-oiled threads and heads
unless otherwise specified.
Therefore, do not grease or
oil bolts or capscrews unless
otherwise specified in this
manual. When using locking
elements, increase torque
values by 5%.
METRIC
Grade
and
Head
Markings
4.8
4.8
8.8
8.8 10.9
10.9
12.9
12.9
BOLT DIAMETER
A
METRIC
BOLT DIAMETER
(A)
M3 0.5 0.4 - - - - - -
M4 3 2.2 - - - - - -
M5 5 4 - - - - - -
M6 6 4.5 11 8.5 17 12 19 14.5
M8 15 11 28 20 40 30 47 35
M10 29 21 55 40 80 60 95 70
M12 50 37 95 70 140 105 165 120
M14 80 60 150 110 225 165 260 190
M16 125 92 240 175 350 255 400 300
M18 175 125 330 250 475 350 560 410
M20 240 180 475 350 675 500 800 580
M22 330 250 650 475 925 675 1075 800
M24 425 310 825 600 1150 850 1350 1000
M27 625 450 1200 875 1700 1250 2000 1500
4.8 8.8 10.9 12.9
N.m Ft-lb. N.m Ft-lb. N.m Ft-lb. N.m Ft-lb.
BOLT TORQUE *
24
4 INCH CHIPPER
Page 29
8
Section
OPTIONS
PART NUMBER DESCRIPTION
76295-00 KIT, CHIPPER BLADE
74634-00 OPTIONAL DISCHARGE
31605-00 TACH/HOUR METER KIT
ENGLISH
CHIPPER BLADE KIT, 76295-00
4 INCH CHIPPER
25
Page 30
ECHO BEAR CAT
www.bearcatproducts.com
237 NW 12th Street, West Fargo, ND 58078-0849
Phone: 701.282.5520 • Toll Free: 888.645.4520 • Fax: 701.282.9522
E-mail: service@bearcatproducts.com • sales@bearcatproducts.com
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