T R IM M E R /
B R U S H C U T T E R
S R M -3 8 0 0
T Y P E 1 -E
898696-43132
X750226-3801
1
847
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RULES FOR SAFE OPERATION
WARNING
DANGER
SAFETY INSTRUCTIONS
1. Do Not operate the unit when you are
1. Do Not smoke while handling gasoline.
2. Do Not refuel a hot engine.Wait unit it cools.
3. Do Not overfill the tank. Spiled fuel must be wiped
up.
fatigued.
2. Do Not operate if other people or animals
are in the work area.
4. Always stop the engine when refueling.
5. Always remove the fuel cap slowly in order to
relieve any pressure build up in the tank.
6. Always restart the engine at least 3 m (10 feet)
away from the refueling posint.
3. Do Not operate the unit without the shield
correctly in position.
4. Do Not operate in a confined area. Carbon
monoxide exhaust gas is highly poisonous.
5. Do Not operate the unit while you are smoking.
6. Always wear eye protection goggles when
operating the unit.
7. Always store gasoline in an approved container.
7. Always hold the unit firmly with both hands and
with fingers and thumbs encircling the handles.
8. Always obey local ordinances regulating the
use of internal combustion engines in your area.
9. Always use the cutting attachments as
approved and supplied by ECHO Inc. for your
unit.
10. Always remain alert when operating the unit
to avoid possible injury to yourself and other
people.
11. Always wear the shoulder harness when
operating the unit.
12. Do not operate the unit while under the
influences of drugs or alcohol.
ATTENTION
WARNING
DANGER
For your protection when operating this unit, comly
with all Safety Rules as listed in the Operator’s
Manual. (Replacement manuals are available from
your ECHO dealer.)
SERIOUS INJURY MAY RESULT FROMTHE
IMPROPER USE OF STEEL BLADES.
COMPLYWITH ALL SAFETY INSTRUCTIONS
LISTED INTHE OPERATOR’S MANUAL AND
SUPPLIEDWITHTHE BLADES.
1. Do not operate unless the debris shield and
safety harness are in good condition and
properly installed.
2. Do not operate if other persons or animals are
in the work area.
1.THE ECHO SAWTOOTH BLADE IS
DESIGNEDTO CUT BRUSH AND SMALL
TREES.
2.THE ECHO 8TOOTH ROTARY KNIFE BLADE
IS DESIGNEDTO CUT HEAVYWEEDS AND
GRASS.TO AVOID INJURY DUETO KICK
BACK OR BLADE FRACTURE, DO NOT USE
THIS BLADETO CUT BRUSH ORTREES.
3. Do not operate without eye protection goggles
available from your ECHO dealer.
3.ECHO INC.WILL NOT BE RESPONSIBLE
FORTHE FAILURE OF CUTTING DEVICES
WHICH HAVE NOT BEENTESTED AND
APPROVED BY ECHO FOR USEWITHTHIS
UNIT.
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NOMENCLATURE OF PARTS
Gear housing
Top guard
Drive shaft assembly
Muffler
Ignition switch
Spark plug
Throttle trigger
Shield
Grip
Choke knob
Air cleaner
cover
Fuel tank
Starter handle
Shoulder harness
TECHNICAL DATA
SRM-3800TYPE1-E
Dimension
Masses
Engine
L × W × H
cm (inch)
kg (lbs)
181.5 × 72 × 46 (71.5 × 28.4 × 18.1)
8.0 (17.6): without shoulder harness and cutter head
Type
Displacement
Air cooled two stroke single cylinder
37.4 (2.28)
mL (cu.inch)
r/min
Max revolution
Carburetor
Ignition
10,000
Walbro diaphragm typeWT
Flywheel magneto : CDI (Capacitor Discharge Ignition)
system
Spark plug
Starter
NGK BPM7A or CHAMPION CJ-7Y
Recoil starter
Clutch
Automatic centrifugal clutch
Fuel
Mixing ratio
Mixture of gasoline (Unleaded, 89 octane minimum) and
specially blended 50 : 1 ECHO two cycle engine oil.
Tank capacity
L (FL.OZ.US) 0.95 (32.2)
Nylon line cutter head
Drive shaft
assembly
Cutter (Option)
Cutter
Circular saw, 25 cm (10 inch)
Cutter (Option)
Gear housing
8 cutter blade, 20 cm (8 inch)
60 degree bevel gears, ratio 1 : 1.33 (Counter-
clockwise)
Lubrication
Drive shaft
Shield
Shell Delpena or good quality lithium grease
High tensile solid steel, 5 bearings
Metal shield mounted on the gear housing for nylon line
and metal blade applications.
Technical data subject to change without notice.
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ASSEMBLING
DRIVE SHAFT
•
•
•
Stand engine uprignt on a level floor.
Loosen bolts at drive shaft end of the engine.
Fit drive shaft assembly ensuring that the drive
shaft is correctly engaged.
Bolts
•
Tignten bolts to fasten drive shaft assembly.
WARNING
DANGER
NEVER START ENGINEWITHOUT
DRIVESHAFT ASSEMBLY INSTALLED.
THIS COULD RESULT IN SERIOUS INJURY.
HANDLE
1. Right hand grip assembly
2. Slot
3. Right hand U-handle
1
3
Insert right hand grip assembly into right hand U-
handle and fit it to the slot for rotation prevention of
right hand U-handle.
2
Fit grip assembling bolt and secure the grip firmly.
1
1. Grip assembling bolt
Remove bolt retainer tube from end of handle
assembling bolt (8 mm).
1. Handle assembling bolt (8 mm)
2. Bolt retainer tube
1
2
Install handle assembling bracket (upper) in handle
assembling bracket (lower) and fix handle by tightening
handle assembling bolt (8 mm) lightly.
1. Handle assembling
1
2
bracket (upper)
2. Handle assembling
bolt (8 mm)
3
3. Left handle
4. Handle assembling
bracket (lower)
5. To engine
4
5
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Loosen 4 right handle assembling bolts and insert right
hand U-handle into right handle assembling bracket.
1. Right handle assembling bolt
2. Right handle assembling bracket
3. Right hand U-handle
(toward direction of arrow
)
1
4. To engine
2
Fix the right hand U-handle by tightening 4 right handle
assembling bolts lightly.
3
4
Adjust each inclination of right and left handles to
adequate position (easy to operate) and tighten firmly
handle assembling bolt (8 mm) and 4 right handle
assembling bolts.
Determine “Easy to operate” position seeing illustration
below.
1
2
3
4
1. Adjustment of right handle inclination (left/right)
2. Adjustment of right handle inclination (forward/
backward)
3. Adjustment of left handle inclination (forward/
backward)
4. To engine
To eliminate loosening of throttle wire fix it to shaft
tube (2 places) and to right hand U-handle (1 place)
with wire fixing clips.
1
1. Wire fixing clip
2. Throttle wire
2
1
2
1. Right hand
U-handle
2. Wire fixing clip
3. Shaft tube
4. Throttle wire
3
4
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THROTTLE CABLE
The engine is delivered with throttle cable (engine side)
separated, assemble the cable to carburetor as follows.
Nut (A)
Swivel
Nut (B)
•
•
Remove the cover.
Remove nut (A) and one washer from throttle
cable.
Stop lead
•
•
Insert throttle cable througn the hole of bracket
as shown.
Replace washer and nut (A) finger tignt, and attach
the inner cable to swivel on throttle lever ensuring
that the nipple fits into socket provided on one
side of slot.
Ground
lead
•
•
Tighten nut (A) to secure in this position.
Check that throttle operates freely and returns to
idle position.
•
Do not loosen nut (B) unnecessarily, since it has
been located properly at the factory.
Reinstall air filter and cover.
1
4
2
7
6
•
•
Connect stop lead and ground lead by couplers .
3
SHIELD
5
Fit the shield on the gear housing and tighten screws
with washers (Seven points) as shown.
SHOULDER HARNESS
•
Fit the shoulder starp to the swivel hook, and
adjust the length of starp and or the locaion clamps
to maintain the cutter head parallel to the ground.
Shoulder strap
assembly
Quick release
latch
Waist pad
OPERATION
GENERAL CHECK
•
Eneure that all nuts, screws and bolts installed
are properly tightened.
Oil
1
Gasoline
50
FUEL STATEMENT
R+M
2
GASOLINE : Use 89 octane (
) gasoline or
gasohol known to be good quality.Gasohol may contain
maximum 10% ethyl (grain) alcohol or 15% MTBE
(methyl tertiary-butyl ether).Gasohol containing methyl
(wood) alcohol is not approved.
OIL : ECHO brand premium two-stroke 50:1 oil is
reguirred.
Mix oil and gasoline /gasohol according to insturctions
on the oil container label.
MIXING : Follow directions on the oil container.
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Fuel mix chart
(50 : 1)
IMPORTANT
Stored fuel ages. Do not mix more fuel than
you expect to use in thirty (30) days, ninety
(90) days when a fuel stabilizer is added.
Stored two-stroke fuel may separata. ALWAYS
shake fuel container thoroughly before each
use.
US
METRIC
GAS
GAS
OIL
FL.OZ.
2.6
OIL
mL
80
GAL.
L
4
1
2
5
5.1
8
160
400
12.8
20
STARTING COLD ENGINE
•
•
Slide switch to START/RUN position as shown.
Push purge bulb 3 or 4 times (or until constant
flow of fuel is visible in fuel return line.)
•
•
Pull choke knob up to COLD START (Close)
position.
Throttle trigger
Ignition switch
Pull recoil starter until the engine fires.Now, push
choke knob to RUN (open) position, and if
necessary, restart the engine again and allow to
warm up for a few minutes before using.
After idling, gradually open throttle and cutter blade
will start to operate as the engine attains clutch
engagement speed of 3,500 r/min approximately.
•
Throttle
control lockout
NOTE
Recoil starter : Use short pulls - only 1/2 - 2/3 of
starter rope for starting. Do not let starter rope
snap back in .
Purge bulb
Always hold the unit firmly.
STARTINGWARM ENGINE
•
When engine is warm, start it by pulling recoil
starter rope with switch positioned at START/RUN.
(Keep choke lever in RUN (open) position)
If engine does not start in a few tries, follow same
procedures as starting a cold.
•
STOPPING ENGINE
•
Release throttle trigger and allow to run at an idle
speed.
Fuel return line
•
Side ignition switch to “STOP” position.
COLD START
(Close)
Choke knob
RUN
(Open)
HOLDTHE UNIT FIRMLY.
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OPERATINGTHETRIMMER
•
Adjust handle to a convenient position for cutting
as instructed on page 5.
•
Allow the engine to warm up at a fast idle for a few
minutes.
•
•
Increase engine speed as necessary.
When mowing shrubs, weeds, or grass, swing the
cutter head from right to left as you move forward.
-
Avoid striking any obstruction such as rocks,
stones or tree stumps which can damage the
cutter head .
Do not cut into the ground.
-
To avoid damage to the engine, do not run the
engine unloaded at full throttle.
•
In the event that the cutter strikes an obstruction
or is otherwise prevented from rotating in normal
operation, the clutch will slip to prevent possible
engine damage. In this case, stop the engine, free
the cutter and then start the operation again.
WARNING
DANGER
DO NOT ALLOW EITHER PEOPLE OR
ANIMALS INTOTHEWORK AREA.
ALWAYSWEAR SAFETY GOGGLESWHEN
CUTTING.
DRESS PROPERLY - AVOID LOOSE
CLOTHING.
WHEN GRASS ORWEEDS HAVE CLOGGED
THE CUTTER HEAD AFFECTING NORMAL
OPERATION, FIRST, STOPTHE ENGINE AND
THEN REMOVETHE DEBRIS.
WARNING
DANGER
• BEFORE STARTING UPTHE ENGINE, MAKE
SURETHATTHE CUTTER BLADE IS NOT
CONTACTING ANYTHING.
• WHENTWO OR MORE OPERATORS ARE
WORKINGTOGETHER, ENSURETHAT A
SAFE DISTANCE IS KEPT BETWEEN
THEM.
OPERATING INSTRUCTIONS (METAL
BLADES and OPTIONAL NYLON LINE)
Your brushcutter/trimmer, has been designed and con-
structed to give you years of trouble-free service and
relieve you of the many back-aching tasks normally
associated with grass trimming, weed control and
brushcutting. Nevertheless, in common with all other
power operated tools, the Owner and/or Operator has
a definite responsibility to maintain the safe working
condition of the unit as provided by the manufacturer ,
and to ensure also the safe operating procedures as
prescribed by common sense and this manual. Please,
therefore, read and understand the instructions as listed
hereunder, and on Page 2, in order to prevent accidents
and possible injury.
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ECHO 2-LINE MANUALTRIMMER HEAD
(OPTION)
WARNING
DANGER
GRASS/WEEDTRIMMERS CAN THROW
GRAVEL, STONE,WOOD CHIPS, GLASS, AND
PLASTIC OR METAL OBJECTS.THE DEBRIS
SHIELD BEHINDTHETRIMMER HEAD STOPS
MUCH OFTHE DEBRIS, BUT CANNOT
PREVENTTHE OPERATOR FROM BEING
STRUCK BY SOME DEBRIS. READTHE RULES
FOR SAFE OPERATION INTHE OPERATOR’S
MANUALTHATYOU RECEIVEDWITHYOUR
ECHOTRIMMER. AISO, FOLLOW AII
INSTRUCTIONS INTHIS INSTRUCTION SHEET.
1. Read the Operator’s Manual carefully.Be throughly
familiar with the controls and proper use of the
trimmer.
Know how to stop the unit and disengage the
controls.
2. Never allow children to operate the trimmer.
3. Never allow adults to use the trimmer unless they
have received prpper instructions. Be sure the
operator is properly attired and wears the type of
foot, leg, head, eye and ear protection
recommended both in your ECHO Operator's
Manual and by your ECHO Servicing Dealer.
4. Always wear eye protection that conforms to
A.N.S.I.Z87.1-1979.
1. REPLACING LINE
A. Remove spool by turning knob clockwise, “right”,
15 cm (6 inch)
1C
1D
1B
and separating parts.
B. Thread a 6 m (20 feet) length of 2.4 mm (.095 inch)
or 2.7 mm (.105 inch) ECHO line through hole in
spool so that ends are the same length.
C. Wind both ends of line tightly and evenly clockwise
(see arrows on spool), and wind from side to side
without twisting the lines.
D. Secure ends of line temporarily with about 15 cm
(6 inch) extending out.
SPOOL
2.REPLACING SPOOL
HOUSING
NOTE
Keep line tight on spool.
2B
2A
BOLT
A. Snap spool into housing while pulling line through
eyelets with about 15 cm (6 inch) extending out.
CAUTION
Knob tightens counterclockwise,“left”.
SPRING
KNOB
B. Fasten spool to housing with shaft bolt, spring,
and knob.
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INSTALLATION OF NYLON LINE HEAD
(OPTION)
Set the nylon line head to the drive shaft and tighten
by turning as shown.
Upper fixing plate
Locking tool
Cutting
head
TIGHTEN
OPERATING INSTRUCTIONS nylon line
1. Always use the end of the line for cutting. Forcing
the cutter head too close to the work will result in
reduced efficiency and broken line.
2. Maintain the line at the recommended length of
12.5 to 15 cm ( 5 to 6 inch ). A longer line will
reduce engine speed, a shorter line may result in
engine damage.
3. The trimmer head rotates counterclockwise.
Always cut with the head tilted to the right to deflect
debris away from the operator.
4. Always observe the SAFETY RULES on Page 2
when using the unit.
SHOULDER HARNESS
•
Install the harness over the both shoulders and
adjust shoulder straps so that the quick release
latch rests low on the right hand side.
•
•
Attach the trimmer/brushcutter to the harness by
means of the quick release latch.
Make some practice sweeps as with a trimmer
and readjust the harness as necessary for comfort
and to maintain the cutter parallel to the ground.
CUTTING PROCEDURES
WARNING
DANGER
IN CASE OF EMERGENCY, PULLTHE QUICK
RELEASE LATCHTO DISCONNECTTHE
TRIMMER FROMTHE HARNESS.
PULL
Quick
release
latch
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TRIMMING
The nylon line will allow you to trim along walls and
fence lines. Always try to trim from right to left, walking
behind the unit and parallel to the wall or fence, thus
deflecting debris away from the operator.
EDGING
1. The nylon line is intended only to cut grass and
should not be used to cut a normal edging trench
along stone or concrete driveway etc.
2. Tilt the unit vertically as illsutrated and use only
the line tip to remove unwanted growth.
MOWING
•
The nylon line will effectively mow large areas of
heavy grass and/or weeds. Use the standard 12.5
- 15 cm ( 5 - 6 inch) of line and operate at full
throttle.
•
When mowing cultivated areas such as lawns hold
the cutter head pararell to the gound to avoid
scalping.
SCALPING
1. The cleaning of weeds and grass right down to
the earth can be accomplished very easily with
the nylon line.
2. Scalping around trees and brushes is particularly
effective, but care should be exercised not to bruise
the bark of young and sensitive growth.
3. In flower beds, always remenber that the nylon
line will cut in a complete circle to avoid cutting
flowers instead of weeds.
TREE
SWEEPING
1. Sweeping grass and other debris from a hard
surface can be done very quickly.
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STEEL BLADE OPERATIONS
Your ECHOTrimmer/Brushcutter is designed for fast,
efficient weed and brush control in areas which are
otherwise inaccessable to power equipment. Standard
configuration includes a handle bar and nylon line
head for light trimming and weed clearing.Two special
steel blades are available as options and
recommended for use in extended heavy weed and
brush clearing operations :
1.Blade: weed and grass 8 tooth 20 cm (8 inch)
diameter
2.Blade: brush 80 tooth 25 cm (10 inch) diameter
WARNING
DANGER
1. SERIOUS INJURY MAY RESULT FROMTHE
IMPROPER USE OF STEEL BLADES. READ
AND COMPLYWITH SAFETY
INSTRUCTIONS LISTED INTHIS MANUAL.
2. THE EIGHTTOOTH BLADE IS DESIGNED
SPECIALLYTO CUTWEED AND GRASS.TO
AVOID INJURY DUETO KICKBACK OR
BLADE FRACTURE, DO NOT USETHIS
BLADETO CUT BRUSH ORTREES.
3. ECHO INC.WILL NOT BE RESPONSIBLE
FORTHE FAILURE OF CUTTING DEVICES
WHICH HAVE NOT BEENTESTED AND
APPROVED BY ECHO FOR USEWITHTHIS
UNIT.
WARNING
DANGER
SAFETY PRECAUTIONS
1. ALWAYS USETHECORRECT BLADE FOR
6. SHOULDTHE BRUSHCUTTER BE OPER-
ATED FOR AN EXTENDED PERIOD OF HIGH
TEMPERATURES,THE GEAR BOX MAY
BECOMEVERY HOT. IFTOO HOTTOTOUCH,
ALLOWTHE UNITTO COOL DOWN, CHECK
THE LUBRICATION AS PER
THE JOB AS RECOMMENDED.
2. BE CAREFUL NOTTO HIT ROCKS, STONES,
TREE STUMPS OR ANY FOREIGN OBJECT
WHICH MAY DAMAGETHE BLADE.
‘MAINTENANCE’AND CONTINUETO
OPERATE IF IN ORDER.
3. DO NOT CUT INTOTHE GROUNDTO AVOID
DULLINGTHE BLADE.
7. TO AVOID ENGINE DAMAGE, DO NOT RUN
ON FULLTHROTTLEWITHOUT LOAD.
4. ALWAYS STOPTHE ENGINE AND EXAMINE
THE BLADE AFTER STRIKING AN
OBSTRUCTION. DO NOT OPERATEWITH A
BLADEWHICH IS BLUNT, BENT,
FRACTURED, OR DISCOLORED DUETO
OVERHEAT.
8. DO NOT OPERATETHE BRUSHCUTTER
WITHOUTTHE HARNESS AND DEBRIS
SHIELD CORRECTLY FITTED.
9. ALWAYS INSPECTTHEWORK AREA AND
REMOVE ANY FOREIGN OBJECTS.
5. INTHE EVENT,THATTHE BLADE STRIKES
AN OBSTRUCTION, OR IS OTHERWISE
PREVENTED FROM ROTATING IN NORMAL
OPERATION,THE CENTRIFUGAL CLUTCH
WILL SLIPTO PREVENT ENGINE DAMAGE.
INTHIS CASE, STOPTHE ENGINE, FREE
AND EXAMINETHE BLADE AND IF IN
GOOD ORDER, RESUME OPERATION.
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SHOULDER HARNESS
•
Install the harness over the both shoulders and
adjust shoulder straps so that the quick release
latch rests low on the right hand side.
•
•
Attach the trimmer/brushcutter to the harness by
means of the quick release latch.
Make some practice sweeps as with a scythe and
readjust the harness as necessary for comfort and
to maintain the cutter parallel to the ground.
PULL
Quick
release
latch
WARNING
DANGER
IN CASE OF EMERGENCY, PULLTHE QUICK
RELEASE LATCHTO DISCONNECTTHE
TRIMMER FROMTHE HARNESS.
SHIELD
When using a metal blade. Use same as Nylon line.
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INSTALLINGTHE BLADE
1. The installation of the 8 tooth weed/grass blade
(option) and the 80 tooth brush is exactly the same.
Brush Blade
(80 tooth)
Weed/Grass Blade
(8 tooth)
2. Rotate the drive shaft until the holes in the upper
fixing plate and the gear box are aligned. Insert
the locking tool.
Upper fixing plate
Locking tool
3. Remove the nylon line line head, if fitted, by turning
in a clockwise direction.
Box wrench
4. Install the blade ensuring that it is centered
correctly on the fixing plate.
5. Fit the lower fixing plate and tighten the locking
nut using the box wrench supplied in the tool kit.
TIGHTEN
Locking tool
6. Fit a new split pin as supplied in the tool kit to
secure the locking nut.
Lower fixing plate
NOTE
• The drive shaft is fitted with left hand threads,
therefore turn counterclockwise to tighten as
illustrated.
Split pin
• Always use a new split pin to secure the
locking nut.
Assemble cutter blade properly
Split pin 2 × 22 mm
Part No.898502-01130.
Locking
tool
Gear housing
Adapter
plate (Upeer)
Nut
Adapter
plate (Lower)
Split pin
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HEAVYWEED CUTTING
•
•
Install the 8 tooth 20 cm (8 inch) blade. (option)
Observing all precautions as listed in this manual,
start the engine and using full throttle, swing the
blade in an arc as you move forward slowly. The
cutter rotates counterclockwise and the debris will
be pushed backwards so the work area will always
be visible.
BRUSHCUTTING
•
•
Install the 80 tooth blade.
Proceed exactly as for weed and grass cutting.
SMALLTREES
•
The unit will effectively cut small trees up to 7.5
cm (3 inch) diameter using the 80 tooth 25 cm
(10 inch) diameter new blade.
•
Before attempting to cut, ensure that the falling
tree will fall away from you, and if necessary, tie
a rope to the tree and have an assistant pull it in a
safe direction.
•
•
Do not attempt to “plunge cut”, i.e. using the
brushcutter like an axe. It is not necessary and
may cause serious damage to the brushcutter.
Brace your feet firmly on the ground and cut with
the left hand side of the blade.
CAUTION
1. Always cut on full throttle.
2. Never try cutting with a blunt blade.
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MAINTENANCE AND CARE
- ALWAYS KEEP THE UNIT CLEAN -
AIR FILTER
•
Clean before using the unit.
-
-
-
Remove the cover.(for air filter and carburetor)
Take off the air filter.
Brush off dust lightly or wash it in suitable
cleaning fluid.
Air filter
Cover
-
When you wash it in a solvent, dry it
completely before putting back in place.
FUEL STRAINER
•
Check periodically.
-
-
Do not allow dust to enter into fuel tank.
Clogged strainer will cause difficulty in starting
engine or abnormalities in engine
performances.
-
-
Pick up fuel strainer through fuel inlet port
with a piece of steel wire or the like.
When strainer is dirty, wash it in suitable
cleaning fluid or replace it.
Fuel strainer
MUFFLER AND EXHAUST PORT (SAM)
Muffler cover
Lid
•
Clean as necessary.
Carbon deposits in cylinder exhaust port and
muffler will reduce engine output.
•
-
Muffler can be removed by taking off muffler
cover.
-
Be careful not to scratch cylinder or piston
when cleaning cylinder exhaust port.
Use non-ferrous plastic or wood.
•
Check loose nuts and screws on the muffler part
before every use.
Screen
Retighten them firmly if necessary.
CYLINDER FINS
•
•
•
Check periodically.
Clogged fins will result in poor engine cooling.
Remove dirt and dust from between fins to let
cooling air pass easily.
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SPARK PLUG
•
•
Check periodically.
Standard spark plug gap is 0.6 - 0.7 mm
(0.024 - 0.028 in).
•
•
Replace if either electrode is worn or if the insulator
is fouled by oil or other deposits.
TORQUE = 14.2 - 15.2 N⋅m (125 - 135 in.lb)
0.6 - 0.7mm (.024 - .028 in.)
CAUTION
Do not over torque.
GEAR HOUSING
Gear
housing
•
•
Remove the bolt every 50 hours and check.
Replenish as necessary, but do not overfill.
-
Shell delpena or good quality lithium multi
grease is recommendable.
Bolt
CARBURETOR ADJUSTMENT
High spped needle (H)
Low speed needle (L)
Every unit is run at the factory and the carburetor is
set in compliance with California Emission Regula-
tions, In addition, the carburetor is equipped with “H”
(High Speed Needle) and “L”(Low Speed Needle) nee-
dle adjustment limiters that prevent settings outside
acceptable limits.
Idle speed adjustment screw
1. Before adjusting carburetor clean or replace air
filter and muffler, “Spark Arrestor Screen”.
2. Make sure the cutting attachment such as hedge
clipper blades or circular saw are properly adjusted.
Trimmer line should be extended to cut-off knife.
3. Start engine and run several minutes to bring to
operating temperature. Flash choke twice during
warm-up to clear any air from the fuel system.
4. Stop engine.Turn“H”speed needle CCW (counter
clockwise) to stop.Turn “L” speed needle midway
between full CW (clockwise) stop and CCW stop.
5. Idle Speed Adjustment
•
Start engine, turn“idle” speed adjustment
screw CW until the saw chain begins to turn,
then turn screw out CCW until attachment
stops turning.Turn screw out, CCW, an
addtional 1/4 turn.
WARNING
DANGER
CUTTING ATTACHMENT MUST NOTTURN OR
MOVEWHEN UNIT IS IDLING.
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6. Accelerate to full throttle for 2 - 3 seconds to clear
any excess fuel in the engine, then return to idle.
Accelerate engine to full throttle to check for
smooth transition from idle to high speed. If engine
hesitates turn “L”needle CCW 1/8 turn and repeat
acceleration. Continue adjustment until smooth
acceleration results.
7. Check idle speed and reset if necessary as
described in item 5.
CAUTION
When strarting, idling adjustment speed
should be adjusted not to rotate the cutting
attachment. Correct idle speed is adjusted
2,900 to 3,100 r/min. Or 1/4 turn counter
clockwise from the point the cutting
attachment stops moving.When there is some
trouble with the carburetor, refer to your
distributor or dealer.
EIGHT CUTTER BLADE
•
•
•
Use only the blade designated by the manufacturer
for this model.
When crack is noticed on the blade, never use it,
but replace with a new one.
Round the teeth bottom for 1- 2 mm radius in order
to avoid the crack using a round file.
30°
Cutter edge
2R
-
-
Rounded part is not to be sharpened.
Sharpen each cutter equally so as to retain
the balance of the blade.
In sharpening the edge by use of a grinder, do
not cool the cutter abruptly by immersing it in
water.
Not sharpened
2mm
-
Tooth bottom
MAGNETO
The unit is incorporated with a CDI (Capactior Discharge
Ignition) system, which does not require adjustment
of ignition timing and the contact breaker point gap.
Ensure wire connections and couplers assembling.
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TROUBLE SHOOTING
Poor performance of the engine and/or trimming mechanism can normally be prevented by carefully following
instructions.
Poor performances can easily be corrected even by a beginner.
When the engine does not function properly check the following three (3) points first.
•
•
•
Is engine compression adequate?
Is fuel system in good condition and is enough fuel being supplied?
Is electrical system in good condition and is spark plug operating normally?
When there is serious trouble with the unit, do not try to repair it yourself but have your distributor or dealer do it
for you. For detailed TROUBLE SHOOTING refer to tables 1 and 2. Locate the problem on the following charts
and repair as necessary.
Fuel strainer clogged
Fuel pipe clogged
Clean.
Fuel is not
reaching
carburetor
Table 1
Clean.
Suction insufficient
Make sufficient.
Clean.
Fuel is not
reaching
cylinder
Strainer clogged
Carburetor out of order
C.D.I. module defective
Ignition coil defective
Wire connection defective
Disassemble and check.
Remove and replace.
Remove and replace.
Reconnect.
No spark at high
tension cord end
High-tension cord connection
defective
Repair as necessary.
Switch is grounded
Insulator cracked
Switch on.
Replace plug.
Adjust.
Spark gap incorrect
Covered with carbon
Fouled with fuel
No spark at plug
Clean or replace.
Clean or replace.
Start correctly.
Readjust.
Starting procedures incorrect
Low and high speed needle
setting too lean
Fuel does
not keep
running
Metering lever spring too strong
Fuel pump diaphram defective
Fuel passage clogged with dust
Readjust
Replace.
Disassemble and clean.
Retighten all screws.
Fuel leaking from fixing
surfaces of carburetor
Accelera-
tion and
low speed
function
defective
Air valve, fuel tank cap
does not work normally
Replace or clean.
Fuel pump does not operate
Check impulse drilling.
Clean.
Fuel inlet needle valve
clogged with dust
Carburetor
overflow
Metering lever spring not placed
in dent of lever
Correct.
This is because fuel mixture
is too rich.
Start the engine several
times with choke shutter fully
open and run at fast idle until
engine does not smoke.
Muffler sticky
with fuel
Bearing damaged
Disassemble and replace.
Disassemble and replace.
Disassemble and replace.
Disassemble and replace.
Piston and/or cylinder seized
Crankshaft worn
Engine does
not crank
Crankshaft contacting
crankcase
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Table 2
Improper fuel used
Use fuel with correct mixing ratio.
Never use gasoline of poor quality.
Spark plug defective (burnt)
Replace.
As cooling fins clogged, air
does not pass well
Clean fins.
Engine overheated
Excessive deposits in
combustion chamber
Disassemble and remove carbon.
Plug damaged or fouled
Replace or clean.
Check wiring.
Firing function defective
Carburetor defective
Combustion poor due to
defective wiring
High-speed needle
setting incorrect
Readjust.
Carburetor overflow
Air cleaner clogged
Refer to Table 1.
Clean as necessary.
Compression insufficient
(piston ring stuck or worn
out)
Disassemble, check and replace
if necessary.
Other troubles
Cylinder chromium plating
peeled or worn out
Replace cylinder.
Clean as necessary.
Readjust.
Exhaust port clogged with
carbon
Throttle is not fully open
Improper setting
Set properly.
Correct properly.
Adjust load.
Replace.
Blade does not cut well
Blade does not rotate
Height of cutter uneven
Overloaded
Clutch shoe worn out
LONGTERM STORAGE
•
Inspect and adjust every part of the unit.
•
Drain fuel tank, pull starter handle slowly a few
times to drain fuel from carburetor.
Pour a small amount of clean motor oil into spark
plug hole, pull starter handle and then crank the
engine untilTOP DEAD CENTER.
-
-
-
Completely clean every part, and repair, if
necessary.
Apply thin coating of oil on metal parts to
prevent rust.
Remove the cutter head, apply sufficient oil
coating and wrap up in plastic.
•
•
Store in a dry area, free from dust.
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