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 serial number
of your machine to provide the most efcient service. See
below for information on how to identify and record the
serial 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.
SERIAL NUMBER LOCATION
Please record the serial number in the space provided and
on the warranty and registration card.
MANUFACTURED BY CRARY INDUSTRIES
WEST FARGO, NORTH DAKOTA 58078 U.S.A.
SERIAL NUMBER
MANUFACTURED IN U.S.A.
XXXXXX
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.
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.
ENGLISH
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.
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
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.
DANGER
Indicates an imminently hazardous situation that, if not
avoided, will result in death or serious injury.
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.
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.
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.
ENGLISH
WHEELED TRIMMER
1
Page 6
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. Keep hands and feet out of cutting area while machine
is operating to avoid serious personal injury. Stop
and allow machine to come to a complete stop before
clearing obstructions.
2. Set up your work site so you are not endangering traffic
and the public. Take great care to provide adequate
warnings.
3. Keep the machine clear of debris and other
accumulations.
4. On electric start models, disconnect cables from battery
before doing any inspection or service.
5. When the trimmer bail is engaged, the trimmer disk is
rotating. Do not attempt to inspect or service the machine
while the trimmer disk is rotating.
6. Maintain firm control of the machine during operation to
prevent tipping. Always be sure of your footing.
7. Shut off the power source, and make sure all moving
parts have come to a complete stop before inspecting
or servicing any part of the machine.
*DO NOT OPERATE OVER AN ANGLE OF
15°. HIGHER ANGLES MAY CAUSE
o
15
DAMAGE TO YOUR MACHINE.
1.5 MAINTENANCE AND 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.
2
WHEELED TRIMMER
Page 7
SAFETY
1.6 SAFETY DECAL LOCATIONS
The numbers below correspond to the decals in Section 1.11. 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.
P/N 18949-00
KEEP FACE AND BODY AWAY
FROM DISCHARGE AREAS.
KEEP MACHINE CLEAR
OF DEBRIS AND OTHER
ACCUMULATIONS. BUILD
UP OF DEBRIS ON MACHINE
CAN CAUSE A FIRE.
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.
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.
ENGLISH
P/N 12254
DO NOT ALLOW HANDS
OR ANY PART OF BODY
OR CLOTHING NEAR ANY
MOVING PART TO AVOID
SERIOUS PERSONAL
INJURY.
PN 12254
WHEELED TRIMMER
3
Page 8
2
ASSEMBLY
Section
2.1 INSTALL THE HANDLEBAR
1. Remove the trimmer and handlebar from the shipping box and pallet.
2. Stand handlebar upright. Align the bottom hole on the handlebar with the bottom hole on the handlebar support
channel located on the trimmer and attach with two 5/16" x 1" flange bolts and two 5/16-18" nylock flange nuts.
DO NOT TIGHTEN BOLTS AT THIS TIME.
4
WHEELED TRIMMER
Page 9
ASSEMBLY
3. Adjust the handlebar height by rotating the handlebar until the top hole on the handlebar is aligned with a corresponding
hole on the handlebar support channel and attach using two 5/16" x 1" flange bolts and two 5/16-18" nylock flange nuts.
4. Tighten all remaining bolts.
5. Use the two ties provided in the owner's kit to tie the wires to the handlebar.
ENGLISH
2.2 ADD 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.
2.3 FILL THE FUEL 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.
WHEELED TRIMMER
Use only those types of fuels that are recommended in
your engine owner’s manual.
To add fuel:
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.
5
Page 10
3
Section
FEATURES & CONTROLS
Understanding how your machine works will help you
achieve the best results when using your machine. The
following descriptions dene the features and controls of
your machine.
Refer to Figure 3.1 for feature locations.
FUEL SHUT OFF VALVE
The fuel shut off valve opens and closes the connection
between the fuel tank and the carburetor. If the engine
is equipped with a fuel shut off valve, turn it to the ON
position for starting. When the engine is not in use, leave
the fuel valve lever in the OFF position.
ENGINE THROTTLE
Changes engine speed. Move throttle to the FAST position
for starting. Move throttle to the SLOW position to shut
engine off. The engine is intended to run at full RPM.
Operate engine with the throttle in the FAST position.
SELF-PROPELLED BAIL
Engages the self-propel mode. Pull up the self-propel bail
located under the handlebar to start the self-propel mode.
SHIFT LEVER
SELF-PROPELLED MODELS
Used to adjust the trimmer speed. Position 1 is the slowest
and position 3 is the fastest. The ground speed ranges
from 1-2 mph.
TILT CONTROL HANDLE
Used to adjust the degree of tilt for the trimmer head and
body when using the Off Center Tilt (OCT) feature.
TRIMMER
BAIL
SELF-PROPELLED
BAIL
SHIFT
LEVER
MODEL WT190S
ENGINE CHOKE
The throttle lever opens and closes the choke valve in the
carburetor and enriches the fuel mixture for starting a cold
engine. Move the throttle lever to the CHOKE position
for starting. When mowing or trimming, the throttle lever
should be in the RUN position.
PRIMER BULB
Use when starting a cold engine. Firmly push the primer
bulb 3 times before starting.
TRIMMER BAIL
To start the trimmer, pull up the trimmer bail located under
the handlebar. When the trimmer bail is engaged, the
trimmer disk is rotating. Release the trimmer bail to stop
the Trimmer. Wait until the trimmer disk has stopped
rotating to inspect or service the Trimmer.
RECOIL STARTER
Used to start engine. Grasp handle and slowly pull until
resistance is felt. After resistance is felt, pull the cord
quickly to start the engine and prevent kickback.
TRIMMER
BAIL
MODEL WT190
TILT CONTROL
HANDLE
Figure 3.1 - Feature Locations
6
WHEELED TRIMMER
Page 11
4
Section
OPERATION
As with any other piece of outdoor power equipment,
getting the feel for how your machine operates and
getting to know the best techniques for particular jobs are
important to overall good performance.
TRIMMING OPERATION
The trimming operation takes place under the body of the
trimmer, where trimmer string is mounted to a rotating
disk. Material is trimmed and propelled out the edges of
the trimmer.
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 THE TRIMMER
Move the machine to a clear, level area outdoors before
starting. Do not operate in the vicinity of bystanders. Make
sure the engine is clean and debris has not accumulated
around the mufer.
1. Check engine oil level before starting (see Engine
Owners Manual).
2. Open the fuel shut-off valve.
3. Place the throttle in the FAST position. Operate engine
in the FAST position.
4. Firmly push the primer bulb 3 times before starting
OR if the engine is equipped with a choke, move the
throttle lever to the CHOKE position.
4.2 STOPPING THE TRIMMER
1. Move the throttle (if equipped) to the SLOW position,
then release the trimmer bail OR move the throttle to
the STOP position.
2. Close the fuel shut off valve.
WARNING
Allow the machine to come to complete stop
before inspection or servicing. You can tell when
the machine has come to a complete stop when the
trimmer disk is not rotating.
4.3 TRIMMING GUIDE
The intended use of the Wheeled Trimmer is trimming,
mowing and edging. The following guidelines can help
you get started.
1. Run unit at full operating speed before starting to trim,
mow or edge.
2. To begin trimming, start the engine, place the trimmer
head on the ground and begin walking slowly.
3. The wheels should remain on the ground at all times
to prevent undue pressure on the trimmer head.
4. The cutting radius is dependant on the amount of
cutting string used and type of application.
5. For difficult conditions and edging, using less than the
full cutting radius is recommended.
ENGLISH
5. Pull trimmer bail back.
6. Grasp the recoil starter cord handle and slowly pull until
resistance is felt, then pull quickly to start the engine
and prevent kickback. Repeat if necessary.
7. Allow engine to warm up. Slowly adjust the throttle
lever (if equipped) from the CHOKE position to the
RUN position.
WHEELED TRIMMER
WARNING
Inspect and clean engine before each use. Debris
accumulation around the mufer can cause a re.
*DO NOT OPERATE
OVER AN ANGLE OF 15°.
HIGHER ANGLES MAY
CAUSE DAMAGE TO
o
15
YOUR MACHINE.
7
Page 12
OPERATION
4.4 SELF-PROPELLED OPERATION
Models: All self-propelled models
The Wheeled Trimmer can be used in either push or selfpropelled mode.
1. Pull up the self-propelled bail located under the
handlebar to start the self-propelled mode.
2. Adjust the trimmer speed with the shift lever. Position
1 is the slowest and position 3 is the quickest. The
ground speed ranges from 1-2 mph.
3. Operate Trimmer safely and as intended.
4. To stop the Trimmer release the self-propelled bail.
5. To stop the engine, release the trimmer bail.
4.5 PARALLEL TRIMMING FOR PUSH
TRIMMERS
The Wheeled Trimmer can be adjusted to mow at an
angle. This allows the machine to trim in hard to reach
places. Parallel trimming is adjustable on this model to
the left 2". The trimmer body pivots on the axle. To adjust
the parallel trimming setting:
1. Loosen the right axle nut located on the bottom of the
trimmer directly behind the axle shaft (Figure 4.1).
2. Lift the right wheel and pull back. The wheel and axle
will rotate backwards due to a slot cut in the bottom of
the trimmer frame.
3. Tighten the nut loosened in Step 1.
4. When finished using the parallel trimming feature,
loosen the right axle nut, and push the axle forward to
the original position.
5. Tighten the right axle bolt and resume regular trimming
or mowing.
4.6 OFF CENTER TILT FEATURE (OCT)
Models: All tilt models
The OCT feature is used to trim in hard to reach places.
This feature enables both the trimmer head and body to
tilt for trimming close to the ground. The degree of tilt is
dependent on the setting selected on the height adjustment
handle located on the right side of the Wheeled Trimmer.
To engage the OCT feature, simply move the handle into
one of the four settings that are available.
1. Level: The height adjustment handle is set in the
position closest to the rear of the trimmer.
2. 5.4 degrees: The height adjustment handle is set in
the second position from the rear of the trimmer.
3. 10.3 degrees: The height adjustment handle is set in
the third position from the rear of the trimmer.
4. 13 degrees: The height adjustment handle is set in
the position closest to the front of the machine for
maximum tilt.
RIGHT
AXLE NUT
8
AXLE SHAFT
SLOT
Figure 4.1 - Adjusting the Trimmer
WHEELED TRIMMER
Page 13
5
14mm WRENCH
TRIMMER
DISC
TRIMMER
HEAD
Section
SERVICE & MAINTENANCE
5.1 MAINTENANCE SCHEDULE
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.
SEE ENGINE OWNER’S MANUAL FOR FURTHER ENGINE MAINTENANCE AND TROUBLESHOOTING
INFORMATION.
FREQUENCY
REFER TO
COMPONENTMAINTENANCE REQUIRED
AIR CLEANERCHECK AND CLEAN (1)
ENGINE OILCHANGE (1)
SPARK PLUGCHECK CONDITION AND GAP
FUEL TANKCHECK/FILL
ALL INTERNAL AND EXTERNAL
NUTS AND BOLTS
BATTERY CONNECTIONSCHECK
ENTIRE MACHINECLEAN
COOLING SHROUDSCLEAN
CHECK TIGHTNESS
ENGINE
OPERATOR’S
MANUAL
BEFORE
EACH USE
EVERY 8
HOURS
EVERY
YEAR
ENGLISH
STARTER DRIVESERVICE
(1) PERFORM MORE FREQUENTLY UNDER EXTREMELY DUSTY CONDITIONS.
(2) HAVE A BRIGGS OR HONDA ENGINE SERVICE DEALER PERFORM THIS SERVICE..
(3) CHANGE OIL AFTER FIRST 5 TO 8 HRS OF USE, THEN EVERY 50 HOURS OR EVERY SEASON.
AS THE LIMITED WARRANTY STATES, FAILURE BY THE OWNER TO PERFORM NORMAL MAINTENANCE WILL VOID THE MACHINE’S
WARRANTY.
5.2 CUTTING HEIGHT ADJUSTMENT
The standard cutting height is 2-3/4 inches. The cutting
height can be adjusted down approximately 3/4" by
turning the trimmer head disk over. To adjust the cutting
height:
1. Insert a 14mm open end wrench into the trimmer frame
(Figure 5.1).
2. Rotate the trimmer head until the wrench engages
with the trimmer shaft.
3. While holding the wrench, twist the trimmer head
weldment counterclockwise to remove. Use a slip
wrench or pipe wrench if necessary.
4. Turn trimmer head disk over and replace on trimmer
spindle.
5. Return trimmer head weldment and turn clockwise
to tighten.
WHEELED TRIMMER
Figure 5.1 - Cutting Height Adjustment
9
Page 14
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,
Cutting string is available in two thicknesses, 130 mil
(standard) and 155 mil (heavy duty). The type of string
selected is dependent on the conditions and material
being cut.
String heavier than 155 mil can be used by making the
holes in the trimmer head larger. The decision to drill the
holes bigger may shorten the life of 130 mil and 155 mil
string if used again.
Cutting string can be wrapped in a variety of ways. Refer
to Figures 5.2, 5.3 and 5.4 for examples. The wrapping
method and cutting string thickness chosen is ultimately
based on what is determined the best for the operator.
To wrap the cutting string in the standard conguration,
follow the steps below.
1. Feed the cutting string through the second hole on
either end of the trimmer head leaving approximately
8 inches for the cutting surface. Total recommended
string length is 20-1/2 inches.
2. Continue by weaving the cutting string through the first
hole directly beside the second hole used in Step 1.
Pull the cutting string tight.
3. Loop the cutting string back and feed through the first
hole on the opposite end of the trimmer head.
4. Feed through the remaining second hole and pull the
cutting string tight. The cutting strings in the middle two
holes should be the same length. If the length differs,
cut to an even length.
Models: All self-propelled models
Self-propelled models operate with a drive chain.
Periodically, this chain will need to be adjusted. To
adjust:
1. Loosen the two 5/16” nuts located under the trimmer
axle.
2. Slide the trimmer axle back to tighten the chains. Slide
the trimmer forward to loosen the chains.
3. Retighten the nuts.
4. Tighten the chains until they have 1/4" deflection.
5.5 TRANSMISSION ADJUSTMENT
Models: All self-propelled models
Self-propelled models operate with a 3-speed transmission.
Periodically, the shift cable may need to be adjusted to
allow proper function of all three gears.
To adjust:
1. Locate in-line adjustor on the shift cable.
2. Loosen the smaller nut to allow adjustment of the larger
adjustment barrel.
3. Tighten or loosen the adjustment barrel, to lengthen
or shorten as needed, to achieve all three positions of
the transmission.
4. Once proper adjustment is achieved, re-tighten the
smaller nut to secure.
10
Figure 5.2 Wrapping the Cutting String
Figure 5.3 Optional Wrapping Method
Figure 5.4 Optional Wrapping Method
5.6 ENGINE MAINTENANCE
Maintenance is essential in preserving engine life. Clean
the engine periodically to remove grass and buildup. The
engine owners manual addresses cleaning the air lter
and changing the oil. Service engine according to the
maintenance schedule in your engine owners manual.
Remember to inspect and clean engine cooling ns as
needed.
WARNING
Clean grass and buildup from the engine periodically.
Dusty conditions will require frequent cleaning.
WHEELED TRIMMER
Page 15
SERVICE & MAINTENANCE
1
2
3
4
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,
5.6 DRIVE BELT CHECKING AND
REPLACEMENT
Check the condition of the drive belt annually or after 30
hours of operation, whichever comes first. If the belts are
cracked, frayed, or worn, replace them by following the
steps below:
1. Shut off the engine. Disconnect the spark plug wire.
2. Remove the front cover weldment(1).
3. Loosen the four bolts fastening the spindle hub(2) to
the trimmer bottom frame. This will allow the spindle
hub with the attached trimmer pulley to move freely.
4. Remove the handle support channel(3). Requires
loosening and removing four bolts.
5. Remove worn or broken belt(4). If the belt is badly
worn and will not be used again, cut for ease of
removal.
6. Install new belt from the front to the back. Feed belt
above the front trimmer pulley and below the rear pulley.
7. Move the spindle hub by inserting a screwdriver in the
slot on the rear side of the spindle hub and applying 70
lbs. pressure forward until belt is tight. Tighten Bolts.
8. Replace front cover and secure with bolts.
9. Replace the handle support channel. The bolts should
be secured with the bolt head beneath and the nuts
and washer above the trimmer body.
ENGLISH
WHEELED TRIMMER
11
Page 16
6
TROUBLESHOOTING
Section
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.
PROBLEMPOSSIBLE CAUSEREMEDY
Trimmer disk does not turn.
Cutting is slow or rough.
Trimmer requires excessive
power or stalls.
Drive belt squealing or smok-
ing.
Engine won't start or
is hard to start.
1. Broken off or damaged belts.
2. Broken spindle.
3. Failed bearings.
1. Cutting string is too weak.
2. Growth is too thick or heavy.
3. Engine not running at full RPM.
1. Cutting string is too long.
2. Drive belt is loose or worn.
3. Growth is too thick or heavy.
4. Belt too tight
1. Drive belt is loose or worn.
2. Worn or damaged pulley.
1. Gas tank is empty.
2. Spark plug wire is
disconnected.
3. Spark plug is defective.
4. Gas line is obstructed
5. Dirty, stale, watercontaminated gas.
6. Flooded engine.
7. Dirty or plugged air cleaner or
engine cooling fins.
8. Trimmer bail not engaged.
1. Replace belts.
2. Repair spindle.
3. Repair bearings.
1. Replace with heavier cutting string (.155).
2. Reduce the trimming area by half or raise
the trimmer head off the ground.
3. Speed up engine to full throttle.
1. Reduce cutting string length.
2. Replace drive belt.
3. Reduce the trimming area by half or raise the
trimmer head slightly off the ground.
4. Move spindle hub assembly towards the rear
of the trimmer.
1. Replace drive belt.
2. Replace pulley.
1. Fill gas tank.
2. Connect loose wire to the spark plug.
3. Replace spark plug.
4. Remove gas line at carburetor and check for
obstruction. Drain gas tank and refill with
fresh gasoline.
5. Drain tank and fill with fresh gasoline.
6. Put throttle control in run position and crank
engine several times to clear out excess
gas.
7. Clean or replace air cleaner. Clean cooling
fins and shroud area of engine.
8. Engage trimmer bail
Drive belt rolling or falling off
pulleys.
Drive chain falling off
self-propelled models.
12
1. Pulley not aligned.
2. Belt not tensioned properly.
3. Spindle bearing failed.
1. Loose chain.
2. Worn chain.
3. Worn sprocket.
4. Sprocket not aligned.
WHEELED TRIMMER
1. Align pulleys.
2. Tension belt with 70 lbs of force.
3. Replace bearing.
1. Tighten chain.
2. Replace chain.
3. Replace sprocket.
4. Align drive sprocket and wheel clutch
assembly with washers.
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”7.55.51181612
5/16”151123173425
3/8”272041306145
7/16”413068509570
1/2”685010275149110
9/16”9770149110203150
5/8”12290203150312230
3/4”217160353260515380
7/8”230170542400814600
1”2982207865801220900
1-1/8”407300108580017361280
1-1/4”5704202631194024681820
SAE 2SAE 5SAE 8
N.mFt-lb.N.mFt-lb.N.mFt-lb.
BOLT TORQUE *
METRIC
Grade
and
Head
Markings
4.8
4.8
8.8
8.810.9
10.9
12.9
12.9
BOLT DIAMETER
A
METRIC
BOLT DIAMETER
(A)
M30.50.4------
M432.2------
M554------
M664.5118.517121914.5
M81511282040304735
M102921554080609570
M1250379570140105165120
M148060150110225165260190
M1612592240175350255400300
M18175125330250475350560410
M20240180475350675500800580
M223302506504759256751075800
M24425310825600115085013501000
M2762545012008751700125020001500
4.88.810.912.9
N.mFt-lb.N.mFt-lb.N.mFt-lb.N.mFt-lb.
* 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%.
BOLT TORQUE *
14
WHEELED TRIMMER
Page 19
8
OPTIONS
Section
For complete details on options available for your machine, consult your nearest authorized ECHO Bear Cat dealer