SHINDAIWA OWNER`S/OPERATOR`S MANUAL BRUSHCUTTER

1Top cover
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SHINDAIWA OWNER'S/OPERATOR'S
MANUAL
BRUSHCUTTER
WARNING
Read the instructions carefully and follow the rules for safe
operation.
Failure to do so could result in serious injury.
Introduction
2Introduction
shindaiwa Brushcutters are lightweight, high-performance, petrol engined units designed for weed control, grass trimming and
brush cutting in areas difficult to control by any other means.
Do not use this unit for any purpose other than aforementioned.
Never let children operate this unit.
This Manual provides the information necessary for assembly, operation and maintenance.
You must read this Manual to understand the safe and effective operation of your shindaiwa product.
For future reference, you should keep this Operator's Manual.
If this Operator's Manual has become illegible through impairment or is lost, please purchase a new one from your shindaiwa
dealer.
When renting or lending this machine to a person who will operate it, always include this Operator's Manual, which provides
explanation and instructions.
When transferring a product, please deliver it attaching the Operator's Manual.
Specifications, descriptions and illustrative material in this literature are as accurate as known at the time of publication, but are
subject to change without notice.
Illustrations may include optional equipment and accessories, and may not include all standard equipment.
If there is any clause in this Manual that is hard to be understood, please contact your shindaiwa dealer.
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Contents
Decals and symbols............................................................................................................ 4
Rules for safe operation...................................................................................................... 5
Training.......................................................................................................................... 5
Eye protection................................................................................................................ 5
Hearing and ear protection ............................................................................................ 5
Protective clothing ......................................................................................................... 5
Additional protection ...................................................................................................... 5
Using shoulder harness ................................................................................................. 6
Fuel................................................................................................................................ 7
Physical condition .......................................................................................................... 7
Area and equipment inspection ..................................................................................... 7
General operation .......................................................................................................... 8
Vibration and cold ........................................................................................................ 10
Repetitive stress injuries.............................................................................................. 10
Rules for safe operation with metal blade......................................................................... 11
Use correct blade......................................................................................................... 11
Reaction forces............................................................................................................ 12
Blade selection ............................................................................................................ 12
Rules for safe operation with nylon line cutting head ....................................................... 13
Use correct cutting attachment .................................................................................... 13
Description........................................................................................................................ 15
Assembling ....................................................................................................................... 16
Drive shaft installation.................................................................................................. 16
U-handle installation .................................................................................................... 16
Throttle linkage ............................................................................................................ 16
Shield installation......................................................................................................... 16
Installing blade............................................................................................................. 17
Guard plate installation ................................................................................................ 18
Nylon line head installation .......................................................................................... 18
Fuel................................................................................................................................... 19
Fuel.............................................................................................................................. 19
Handling fuel................................................................................................................ 19
Operation .......................................................................................................................... 20
Starting the cold engine ............................................................................................... 20
Starting the warm engine............................................................................................. 20
Stopping the engine..................................................................................................... 21
Service maintenance guide .............................................................................................. 22
Troubleshooting ................................................................................................................ 23
Maintenance and care ...................................................................................................... 24
Cleaning air filter.......................................................................................................... 24
Check fuel system ....................................................................................................... 24
Replacing fuel filter ...................................................................................................... 24
Check spark plug ......................................................................................................... 24
Cooling system maintenance....................................................................................... 24
Carburettor adjustment ................................................................................................ 25
Cleaning silencer ......................................................................................................... 25
Angle transmission ...................................................................................................... 25
Storage ............................................................................................................................. 26
Long term storage (Over 30 days)............................................................................... 26
Disposal procedure........................................................................................................... 27
Specifications.................................................................................................................... 28
3
Decals and symbols
DANGER
This symbol accompanied by the
word "DANGER" calls attentions to
an act or a condition which will
lead to serious personal injury or
death of operators and bystanders.
Circle and slash symbol
means whatever is
shown is prohibited.
Symbol form / shape
WARNING
This symbol accompanied by the
word "WARNING" calls attentions
to an act or a condition which can
lead to serious personal injury or
death of operators and bystanders.
CAUTION
"CAUTION" indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
NOTE
This enclosed message provide tips
for use, care and maintenance of the
unit.
Symbol description / application
Symbol form / shape
Symbol description / application
Carefully read the Operator's Manual
The maximum speed of the cutting
attachment shaft in r/min
Wear eyes, ears and head protection
Guaranteed sound power level
Wear foot protection and gloves
Beware of high-temperature areas
Keep bystanders away 15 m
Petrol and oil mixture
Warning!
Thrown objects!
Locate this safety decal on your unit.
The complete unit illustration found in the "Description" section will help you locate them.
Make sure the decal is legible and that you understand and follow the instructions on it.
If a decal cannot be read, a new one can be ordered from your shindaiwa dealer.
Part number X505-002910
4
Rules for safe operation
Training
WARNING
Grass trimmers and brushcutters can throw small gravel, stone, glass, metal or
plastic objects as well as the material being cut.
Read these "Rules for safe operation" with care.
Follow instructions in the Operator's Manual.
Do not permit operation without proper training and protective equipment.
ΠRead the Operator's Manual carefully.
Be thoroughly familiar with the controls and proper use of the unit.
Know how to stop the unit and shut off the engine.
Never allow anyone to use the unit without proper instruction.
ΠIf you have any questions or problems, please contact your shindaiwa dealer.
Eye protection
The operator must wear eye protection not only against objects thrown by the unit, but also
because eye infections can be caused by airborne dust, seeds and pollen.
Prescription glasses may be worn under the safety goggles.
Eye protection should also be worn by persons in the risk zone which extends beyond the
danger zone.
Hearing and ear protection
Prolonged exposure to loud noise can cause impairment or loss of hearing.
Wear a suitable hearing protective device such as earmuffs or earplugs to protect against
objectionable or uncomfortable loud noises.
Protective clothing
Choose trousers, shirts and jackets that fit trimly and have no strings, frills or dangling straps
which could catch on the unit or the underbrush.
Do not wear ties, loose clothing or jewellery.
Keep clothing buttoned or zipped up and shirttails tucked in.
Secure hair so it is above shoulder length.
The wearing of gloves offers some protection against contact with skin irritants such as poison
ivy.
Soft leather work gloves may also improve your grip.
Additional protection
WARNING
In addition to head, eye and ear protection wear protective clothes, safety gloves and
shoes to protect your feet and body from thrown objects, and improve your footing
on slippery surfaces.
Do not wear ties, jewellery, or loose, dangling clothing which could be caught in the
unit.
Do not wear open-toed footwear, or go bare-foot or barelegged.
In certain situations, total face and head protection may be required.
For heavy brush cutting with metal blade, logger's trousers or leg chaps with
protective inserts are added considerations.
1. Safety goggles.
2. Hearing protectors.
3. Head and face protection.
4. Shoulder harness.
5. Safety gloves.
6. Trim-fitting clothes.
7. Sturdy shoes or boots.
8. Long trousers.
Hay fever (Rhinitis) sufferers may wear disposable masks to help reducing the intake of
allergenic particles.
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Using shoulder harness
WARNING
Πshindaiwa trimmers and brushcutters are designed to fit a wide variety of body
sizes, but may not be adjustable for extremely tall persons.
Do not use the unit if your feet can reach the cutting attachment when the unit is
attached to the harness.
ΠIn case of an emergency, use quick-release pin on harness to free yourself from
unit.
NOTE
A person's size can affect the balancing adjustment.
Also the balancing procedure may not work with some shindaiwa units on some persons.
If the shoulder harness does not fit you or cannot be adjusted well, please ask your
shindaiwa dealer for assistance.
Balance tool for a level plane of cutting head rotation.
1. Harness quick-release pin.
4. Ground level.
2. Throttle trigger.
3. Suspension point.
Use a shoulder harness when provided or when recommended in this Manual.
Adjust both harness and the suspension point on the unit so the unit hangs with the cutting
attachment a few centimetres above ground level.
The cutting attachment and shield should be level in all directions.
Harness the unit on the right side as shown.
5. Pull the white tab.
6. Shaft tube.
Place shoulder harness over the both shoulders and adjust straps so the quick-release pin
rests just below the waist.
Buckle waist belt.
Belt should be snug.
Attach grass trimmer / brushcutter to harness.
Check for correct adjustment by moving cutting attachment along ground.
Re-adjust position of suspension point if necessary.
a) Slide suspension point up and down the tube to find the right balance.
Rotate the clamp to level the cutting attachment and shield.
Lock in position.
If the suspension point is a free-spinning type, the unit may tend to roll over sideways,
however, you should still level the attachment and shield on the front-to-rear axis.
b) Balancing and levelling, as above, may require relocation of the clamp and readjustment of
the harness straps.
Also, each type of cutting attachment and shield mounted on the unit may require
balancing.
c) The accompanying shoulder harness is suitable for people of standard adult physique, who
are 150 cm - 195 cm in height and 60 cm - 140 cm in waist size.
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Fuel
Handle fuel with care.
It is highly flammable.
a) Use an appropriate type of fuel container.
b) Do not smoke or bring flame or sparks near to fuel supplies.
c) The fuel tank may be under pressure.
Always loosen the fuel cap and wait for pressure to be equalized before removing the cap.
d) Fill the fuel tank outdoors over bare ground and install the fuel cap securely.
Do not pour fuel indoors.
e) Wipe any spilled fuel off the unit.
Then move at least 3 m from the fuelling spot before starting the engine.
f) Never refuel while the engine is still hot, or fuel a running engine.
g) Do not store the unit with fuel in its tank, because a fuel leak could start a fire.
Physical condition
ΠYou should be in good mental and physical health.
Do not operate if you are under the influence of alcohol or any medication or substance
which could affect your vision, dexterity or judgement.
ΠFor your own health and your safe and comfortable work, operate the machine within the
air temperature range of -5ºC to 40ºC.
Area and equipment inspection
WARNING
ΠImproper fit will result fly off the cutting attachment.
ΠNever start the engine if the power transmission shaft is not in place to prevent the
engine from over speeding or the clutch from flying apart.
Inspect the area before using the unit.
Remove objects the unit could throw.
Remember where there are obstructions to be avoided.
Inspect the unit before using it.
Perform only maintenance or adjustments for which the Operator's Manual gives instruction.
Do not try to repair the unit without proper instruction.
The unit should be serviced only by trained shindaiwa dealer servicemen with the proper
tools.
Be sure that:
a) Engine does not leak fuel.
b) Fasteners are tight, and none are missing.
c) Silencer is in good condition.
d) The unit has the proper equipment-shield, handles, harness, etc.-for the cutting attachment
to be used.
e) If used on the unit, the cutting attachment is properly tightened.
7
General operation
WARNING
Eye protection should be considered for everyone in the zone of risk.
Risk of eye injury diminishes with distance.
Do not run the engine indoors, or where there is poor ventilation.
Engine fumes contain deadly poisonous carbon monoxide.
Do not operate with a worn or damaged cutting attachment.
Do not run engine at full throttle without a load.
Do not hit rocks, stones, tree stumps, and other foreign objects with the cutting attachment.
If cutting attachment strikes an obstruction, stop engine immediately and inspect cutting
attachment for damage.
Start on ground with cutting attachment in the clear.
Lay the unit down on a clear area and set the controls for starting.
Be sure the cutting attachment cannot contact the ground or any obstruction.
Hold the unit firmly down so you will not lose control during starting.
Do not start the unit in the air, or from the harness.
The unit could swing into your leg or an obstruction if you lose control.
Do not raise the cutting attachment above knee height.
If raised higher, the cutting attachment will be more directly in line with your face.
Thrown objects may hit your face and eyes.
Wear the recommended protectiive gear.
Never operate the unit without the proper guards, shoulder harness and other protective
devices.
Never operate the unit without good visibility and light.
Do not allow anyone to enter the operating danger zone with you.
The danger zone is an area of 15 m in radius.
Insist that persons in the risk zone beyond the danger zone wear eye protection to protect
them from thrown objects.
If the unit must be used where there are unprotected people, operate at a low throttle speed
to reduce the risk.
Ensure that there are no children, bystanders, and pets in the work area.
Keep all children, bystanders and fellow workers outside 15 m radius for grass trimmers /
brushcutters.
8
Stop the engine before leaving the machine, children are not allowed to use the machine, stop
the machine between different working places.
If you are approached, stop the engine and cutting attachment immediately.
Keep your hands and body away from silencer to prevent heat injury while the engine is hot.
Sudden vibration?
Shut down immediately!
Shut down immediately if the unit starts to shake or vibrate.
A sudden vibration is a sign there may be dangerous trouble, such as a broken flywheel, clutch
or cutting attachment, or loose parts.
Do not use the unit until the problem has been properly diagnosed and corrected.
Keep feet and hands away until rotation stops.
When the unit is turned off, make sure the cutting attachment stops before the unit is set down.
If the cutting attachment rotates after throttle is returned to idle, carburettor adjustment is
required.
Follow instruction on this Manual to make the adjustment yourself, or have the carburettor
adjusted by your shindaiwa dealer.
All maintenance and adjustments given in this Manual should be performed by you or your
shindaiwa servicing dealer on a timely basis.
All required service or repair must be done only by shindaiwa servicing dealer.
Never attempt to use an incomplete or one fitted with unauthorized modification.
Do not operate one-handed.
Always use both hands on the handles.
Always hold the unit with the fingers and thumbs encircling the handles.
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Vibration and cold
It is believed that a condition called Raynaud's Phenomenon, which affects the fingers of
certain individuals, may be brought about by exposure to cold and vibration.
Exposure to cold and vibration may cause tingling and burning followed by loss of color and
numbness in the fingers.
The following precautions are strongly recommended because the minimum exposure which
might trigger the ailment is unknown.
ΠKeep your body warm, especially the head and neck, feet and ankles, and hands and
wrists.
ΠMaintain good blood circulation by performing vigorous arm exercises during frequent work
breaks and also by not smoking.
ΠLimit the number of hours of operation.
Try to fill each day with jobs where operating the trimmer or other hand-held power
equipment is not required.
ΠIf you experience discomfort, redness and swelling of the fingers, followed by whitening and
loss of feeling, consult your physician before further exposing yourself to cold and vibration.
Repetitive stress injuries
Painful or numb fingers?
See your doctor immediately!
It is believed that over-using the muscles and tendons of the fingers, hands, arms and
shoulders may cause soreness, swelling, numbness, weakness and extreme pain to the
areas just mentioned.
Certain repetitive hand activities may put you at a high risk for developing a repetitive stress
injury (RSI).
To reduce the risk of repetitive stress injury, do the following:
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Avoid using your wrist in a bent, extended or twisted position.
Take periodic breaks to minimize repetition and rest your hands.
Reduce the speed and force in which you do the repetitive movement.
Do exercises to strengthen the hand and arm muscles.
See a doctor if you feel tingling, numbness or pain in the fingers, hands, wrists or arms.
The sooner RSI is diagnosed, the more likely permanent nerve and muscle damage can be
prevented.
10
Rules for safe operation with metal blade
DANGER
Always stop the engine when a cutting attachment jam occurs.
Do not attempt to remove an object causing a jam if the engine is running.
Injury can occur if a jam is removed and the cutting attachment suddenly starts.
Use correct blade
WARNING
ΠSerious injury may result from the improper use of blades.
Read and comply with all safety instructions listed in this Manual.
ΠThe metal blade is designed especially to cut weeds and grass.
To avoid injury due to kickback or blade fracture, do not use the metal blade to cut
brush or trees.
ΠUse only cutting attachments recommended by shindaiwa.
ΠPieces from a cracked metal blade can fly off during operation.
Inspect metal blades for cracks before each use.
Discard cracked blades no matter how small the crack.
Cracked blades can be the result of misuse or improper sharpening.
1. Blade.
2. Safety clips.
3. Lower blade retainer.
4. Bolt guard.
5. Bolt.
Inspect blades before use.
Wires can catch and flap around
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Always use the blade suited for the job.
Do not hit rocks, stones, tree stumps, and other foreign objects with the blade.
Do not cut into the ground with the blade.
If blade strikes an obstruction, stop engine immediately and inspect blade for damage.
Do not operate with a dull, bent, fractured or discoloured blade and worn or damaged nut.
Do not run engine at full throttle without a load.
Remove all foreign objects from work area.
Do not operate brushcutter without shoulder harness and shield.
Scything weeds
This is cutting by swinging the cutting attachment in a level arc.
It can quickly clear areas of field grass and weeds.
Scything should not be used to cut large, tough weeds or woody growths.
If a sapling or shrub binds the cutting attachment, do not use the cutting attachment as a lever
to free the bind, because this will cause cutting attachment failure.
Instead, shut off the engine and push the sapling or shrub to free the blades.
Do not use a cracked or damaged blade.
11
Reaction forces
WARNING
Be sure you understand the reaction forces of push and pull, and kickback described
in this Manual, and how these forces may affect your balance in the operation of a
unit.
1. Push
The operator may feel the unit push toward him when he tries to cut the object on right.
If he cannot hold the blade in the cut, a kickback may occur when the blade is pushed out to
where the teeth at the outside furthest point from the operator are cutting.
The blade will "kickback" sideways.
2. Pull
The opposite of push.
When object on left, the operator may feel the unit pull away.
Although this pull type of cutting may cause sawdust to be thrown back at the operator, it is
recommended for sawing off heavy brush because the cutting is smoother and more stable
than when the unit pushes.
Kickback
This may occur when the moving blade at the front of the blade circle contacts strong brush or
trees.
The force that occurs pushes the entire unit and blade violently away in an arc.
Kickback is a danger to a bystander and also a jolting force to the operator.
Blade selection
WARNING
Use only shindaiwa approved attachments.
Serious injury may result form the use of a non-approved attachment combination.
shindaiwa will not be responsible for the failure of cutting devices, attachments or
accessories which have not been tested and approved by shindaiwa.
Read and comply with all safety instructions listed in this manual.
The type of blade used must be matched to the type and size of material cut.
An improper or dull blade can cause serious personal injury.
Blades must be sharp.
Dull blades increase the chance of kick-out and injury to yourself and bystanders.
Plastic grass / weed blade may be used wherever the nylon line head is used.
Do not use this blade for heavy weeds or brush!
8 tooth weed / grass blade is designed for grass, garden debris and thick weeds.
Do not use this blade for brush or heavy woody growth, 2 cm diameter or larger.
80 tooth brush blade is designed for cutting brush and woody growth up to 2 cm diameter.
22 tooth clearing blade is designed for dense thickets and saplings up to 6.5 cm diameter.
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Rules for safe operation with nylon line cutting head
DANGER
Always stop the engine when a cutting attachment jam occurs.
Do not attempt to remove an object causing a jam if the engine is running.
Injury can occur if a jam is removed and the cutting attachment suddenly starts.
Use correct cutting attachment
WARNING
ΠSerious injury may result from the improper use of cutting attachment.
Read and comply with all safety instructions listed in this Manual.
ΠUse only flexible, non-metallic line recommended by shindaiwa.
Use only cutting attachments recommended by shindaiwa.
ΠExcessive nylon line beyond cut off knife could fly off when the nylon line cutter
starts rotating after adjustment of nylon line length.
ΠUse extreme caution when operating over bare spots and gravel, because the line
can throw small rock particles at high speeds.
The shield on the unit cannot stop objects which bounce or ricochet off hard
surfaces.
ΠDo not trim in any area where there are broken strands of fencing wire.
Remove the broken pieces of wire, or give the area wide berth.
Wear proper safety protection.
Do not cut where you cannot see what the cutting device is cutting.
Operate the machine with its throttle trigger fully grasped for higher engine speed.
Do not give an excessive load to the spinning cutting head to stop.
In case of cutting the thick grass, cut the grass little by little so as to maintain engine speed.
When the rotation of the cutting head stops during operation, immediately release the
throttle trigger to lower the engine speed, pull the machine away from the grass, and fully
grasp the throttle trigger and rotate the cutting head to continue cutting.
ΠStop the engine immediately when grass or cord / string like object wound around the
cutting head, and take them off before starting the engine.
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The basic cutting actions pictured are: Trimming, scything, scalping and lawn edging.
These actions are as follows:
Trimming
1. Angle to wall.
2. Debris.
3. Knife side raised.
4. Angle to ground.
This is feeding the trimmer carefully into the material you wish to cut.
Tilt the head slightly to direct the debris away from you.
If cutting up to a barrier such as a fence, wall or tree, approach from an angle where any debris
ricocheting off the barrier will fly away from you.
Move the line head slowly until the grass is cut right up to the barrier, but do not jam (overfeed)
the line into the barrier.
If trimming up to wire mesh or chain link fencing, be careful to feed only up to the wire.
If you go too far, the line will snap off around the wire.
Trimming can be done to cut through weed stems one at a time.
Place the nylon line cutter near the bottom of the weed never high up, which could cause the
weed to chatter and catch the line.
Rather than cut the weed right through, just use the very end of the line to wear through the
stem slowly.
Scything
This is the cutting or mowing of large grassy areas by sweeping or swinging the trimmer in a
level arc.
Use a smooth, easy motion.
Do not try to hack or chop down the grass.
Tilt the line head to direct the debris away from you on the scything stroke.
Then return without cutting grass for another stroke.
If you are well protected and do not care whether some debris is thrown in your direction, you
may scythe in both directions.
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Scalping and edging
Both of these are done with the line head tilted at a steep angle.
Scalping is removing top growth, leaving the earth bare.
Edging is trimming the grass back where it has spread over a pavement or driveway.
During both edging and scalping, hold the unit at a steep angle in a position where the debris,
and any dislodged dirt and stone, will not come back towards you even if it ricochets off the
hard surface.
Although the pictures show how to edge and scalp, every operator must find for himself the
angles which suit his body size and cutting situation.
Nylon line head or disc rotates anticlockwise.
The knife will be on the left side of the shield.
1. Cut on this side.
2. Debris.
For nearly all cutting, it is good to tilt the nylon cutter so that contact is made on the part of line
circle where the line is moving away from you and the shield (See appropriate picture).
This results in the debris being thrown away from you.
Tilting the head to the wrong side will shoot the debris toward you.
If the nylon line cutter is held flat to the ground so that cutting occurs on the whole line circle,
debris will be thrown at you, drag will slow the engine, and you will use up a lot of line.
Do not trim near cars or pedestrians.
Always wear proper eye protection against thrown objects.
Objects can bounce up at you from the ground under the shield, or ricochet off any nearby hard
surface.
Do not trim at high speed near roadways when there is traffic, or in places where there are
pedestrians.
If you must trim where people are in the zone of risk use a much lower or reduced speed, by
using a partial trigger setting.
Do not use full throttle.
Line pushed into wire fencing will snap off.
Do not push the line into tough weeds, trees, or wire fences.
Pushing the line into chicken wire, chain link fencing or thick brush can result in snapped-off
line ends being hurled back at the operator.
The proper way is to cut right up to a barrier, such as any of those mentioned, but never run
the line into or through the obstruction.
Do not cut closely to obstruction or barrier.
Avoid wire.
Avoid nylon line contact with broken wire fencing.
Pieces of wire broken off by the trimmer can be hurled at high speeds.
14
Description
1. Angle transmission - Having two gears to change the
angle of rotating axis.
2. Shaft tube - Part of the unit that provides a casing for
power transmission shaft.
3. Safety decal - Part number X505-002910
4. Throttle trigger - Activated by the operator's finger for
controlling the engine speed.
5. Ignition switch - "Slide switch" mounted on top of the
throttle trigger housing, move switch downward to
START, upward to STOP position.
6. Throttle trigger lockout - Locks throttle trigger in the
idling position until you have a proper grip with your right
hand around the handle.
7. Suspension point - Device on which the harness can be
hooked.
8. Safety decal - Part number X505-002310
9. Silencer cover - Cover the silencer not to make operator
touch to hot surface of silencer.
10. Spark plug
11. Air cleaner cover - Covers air filter.
12. Fuel tank cap - For closing the fuel tank.
13. Fuel tank - Contains fuel and fuel filter.
14. U-handle - Having the configuration of a bicycle handle
bar.
15. Operator's Manual - Included with unit.
Read before operation and keep for future reference to
learn proper, safe operating techniques.
16. Protector sleeve
17. Goggles
18. Tools - 17 X 19 mm T-wrench (combination screwdriver
/ spark plug socket), 8 X 10 mm spanner, 4 mm and 5
mm hexagonal wrenches and two bands.
19. Shield - Device to protect the operator from accidental
contact with the cutting head and thrown objects.
Shield support and four bolts.
Guard plate - For nylon line head.
Device to protect the operator from accidental contact
with the cutting head and thrown objects.
Cut off knife; Cut nylon line to adjust line length to proper
swath.
20. Shoulder harness - An adjustable straps to suspend
unit.
15
Assembling
Drive shaft installation
1. Two bolts (M5 X 25).
2. Shaft tube.
3. Line.
ΠStand the engine upright on a level surface.
ΠUse the 4 mm hexagonal wrench to loosen the two bolts at the connection between the
engine and the shaft tube.
ΠCarefully fit the shaft tube to the engine, making sure that the power transmission shaft is
correctly engaged.
ΠRotate the drive shaft housing until the bearing housing is in line with the engine.
ΠTighten both bolts to fasten the drive shaft assembly.
U-handle installation
CAUTION
Install the handle so that it does not hide any of the safety decals.
1. Lower cap.
2. Two bolts (M6 X 25).
3. Handle bracket.
4. To engine.
ΠUse the 4 mm hexagonal wrench to remove the lower cap retaining bolts from the handle
bracket.
ΠReassemble the lower cap to the handle bracket in the reverse order of disassembly.
ΠLocate the handle in the best position for operator comfort.
ΠFirmly tighten both lower cap retaining bolts.
Throttle linkage
1. Screw (M5 X 35).
5. Stopper hole
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2. Throttle grip.
3. Nut.
4. Clamp bolt (M6 X 20).
Loosen the screw (M5 X 35) of the throttle grip and remove the screw and nut.
Fully loosen the clamp bolt (M6 X 20) of the throttle grip.
Slip the right-side handle into the throttle grip.
Locate the throttle grip so that the screw can pass through the stopper hole.
Securely tighten the screw and nut.
Securely tighten the clamp bolt.
6. Throttle cable.
7. Two bands.
8. Protector sleeve.
ΠSecure the throttle cable to the shaft tube with the two bands.
ΠInstall the protector sleeve on the shaft tube.
ΠOperate the throttle trigger and check for smooth operation.
If any stiffness or binding is noted, the cause must be identified and corrected before the
brushcutter is placed in service.
ΠTest the throttle trigger for proper "free play" of approximately 7 mm in the idle position.
9. Adjuster cover.
10. Cable adjuster.
11. Cable locknut.
ΠIf necessary, adjustments can be made at the carburettor by:
- Temporarily moving the adjuster cover to expose the cable adjuster.
- Loosening the cable locknut and then screwing the cable adjuster in or out until proper
free play is achieved.
Shield installation
1. Bracket.
2. Shaft tube.
3. Shield.
4. Shield support.
5. Four bolts (M5 X 45).
ΠInsert the shield between the shaft tube and the bracket.
ΠFit the shield support on the shaft tube and tighten four bolts (M5 X 45) lightly.
ΠTighten the four bolts firmly.
16
Installing blade
DANGER
If worn bolt and bolt guard for blade are used, there is a danger of blade getting loose.
Replace them with new ones.
CAUTION
ΠFasten output shaft using locking tool securely in order to avoid the possibility of
output shaft rotating when mounting cutting blade which will prevent the cutting
blade fastening bolt from being tightened sufficiently.
ΠWear gloves to reduce the risk of injury caused by unintentional contact with the
blade.
NOTE
Check to be sure the locking tool is fully engaged to prevent the output shaft from turning.
Inspect blades before installation.
Check for sharpness.
Dull blades increase the risk of blade kickback reactions.
Small cracks can develop into fractures resulting in a piece of blade flying off during operation.
Discard cracked blades no matter how small the crack.
1. Socket wrench.
2. Loosening direction.
3. Bolt.
4. Bolt guard.
5. Lower blade retainer.
6. Safety clips.
7. Blade retainer.
8. Locking tool (4 mm hexagonal wrench).
ΠAlign locking hole in blade retainer with notch at the edge of angle transmission and insert
locking tool.
ΠThe bolt has a left hand thread and can be removed by turning clockwise.
ΠRemove the bolt guard and lower blade retainer.
9. Safety clips off-centre.
∗ Slip the blade in place.
10. Centre the safety clips.
ΠSlide the safety clips as shown in the illustration.
ΠFit the blade over the safety clips on the blade retainer and slide the safety clips back to the
original position.
ΠInsert locking tool further into blade retainer fixing hole to fix output shaft.
11. Blade.
12. Tightening direction.
ΠTighten the bolt (turn anticlockwise) using a socket wrench.
ΠNever fasten applying your too much pressure.
Otherwise the thread of bolt could be broken.
ΠRemove locking tool.
17
Guard plate installation
(For nylon line operation)
WARNING
The cut off knife on the debris shield has sharp edges.
Avoid contact when installing or removing the line head.
NOTE
Make sure the guard plate is completely hooked at the hook receiver.
ΠAttach the guard plate to the shield.
Nylon line head installation
(Use with guard plate)
CAUTION
Fasten output shaft using locking tool securely in order to avoid the possibility of
output shaft rotating when mounting nylon line head.
1. Blade retainer.
2. Locking tool (4 mm hexagonal wrench).
4. Loosing direction.
5. Bolt.
6. Bolt guard.
3. Socket wrench.
ΠAlign locking hole in blade retainer with notch at the edge of angle transmission and insert
locking tool.
ΠThe bolt has a left hand thread and can be removed by turning clockwise.
ΠRemove the bolt guard.
7. Nylon line head
ΠMount line head to output shaft by turning it anticlockwise until head is tight against blade
retainer.
ΠRemove locking tool.
18
Fuel
Fuel
NOTE
Stored fuel ages.
Do not mix more fuel than you expect to use in thirty (30) days.
Do not mix directly in fuel tank.
ΠFuel is a mixture of regular grade petrol and an air-cooled 2-stroke engine oil of reputable
brand name.
Minimum 89 Octane unleaded petrol is recommended.
Do not use fuel containing methyl alcohol or more than 10 % of ethyl alcohol.
ΠRecommended mixture ratio; 50 : 1 (2 %) for ISO-L-EGD Standard (ISO/CD 13738), JASO
FC, FD grade and shindaiwa 50 : 1 oil or 25 : 1 (4 %) for JASO FB grade oil.
- Do not mix directly in engine fuel tank.
- Avoid spilling petrol or oil.
Spilled fuel should always be wiped up.
- Handle petrol with care, it is highly inflammable.
- Always store fuel in approved container.
Handling fuel
DANGER
After refuelling, tighten fuel cap firmly and check for leakage.
In case of fuel leakage, repair before starting operation since there is a danger of fire.
ΠNever smoke or allow flame or sparks near fuel.
ΠAlways fill the fuel tank outdoors.
Never pour fuel indoors.
ΠAlways remove the fuel cap slowly to relieve any pressure buildup in the tank.
ΠNever refuel the engine when it is hot or running.
ΠAlways use an approved, safe fuel container.
∗ Maximum level line
ΠIt is not permitted to fill fuel above the maximum level line of fuel tank.
ΠAfter fuelling, always wipe away spilled fuel.
ΠAlways move at least 3 m away from the fuelling spot before starting the engine.
ΠNever store the unit with fuel in the tank a fuel leak could start a fire.
19
Operation
Starting the cold engine
WARNING
ΠWhen engine starts, the cutting attachment may rotate, even with throttle trigger in
low-speed position.
ΠAfter engine starts, pull throttle trigger slightly to release throttle latch
immediately.
Never use throttle latch for operation.
ΠWhen engine is started, confirm if there is not any abnormal vibration or sound.
If there is abnormal vibration or sound, ask your dealer to repair.
∗ Starter handle
NOTE
Œ
Œ
Œ
Œ
Œ
Check unit for loose nuts, bolts and screws before starting.
Always clear work area of debris before starting operation.
Always hold the unit firmly on the ground.
When pulling starter handle, use short pulls, 1/2 to 2/3 of rope length.
Do not allow the starter handle to snap back against the housing.
1. Ignition switch.
2. Throttle trigger.
3. Throttle latch.
ΠBefore starting engine make sure cutting attachment is not in touch with ground or other
objects.
ΠPlace ignition switch in the "I" position.
4. Purge bulb.
Œ
Œ
Œ
Œ
Œ
5. Fuel return line.
6. Choke lever.
Push purge bulb until fuel is visible in clear fuel return line.
Move choke lever to close ( ) position.
Pull starter handle until first firing sound.
Move choke lever to open ( ) position.
Restart engine and allow to warm up.
ΠWhen engine is hard to start, use throttle latch.
∗ Pull throttle trigger fully and push throttle latch and release throttle trigger to activate throttle
latch.
After engine starts, pull throttle trigger slightly to release throttle latch immediately.
Starting the warm engine
NOTE
If engine does not start after 4 pulls, use cold starting procedure.
Œ
Œ
Œ
Œ
Place ignition switch in the "I" position.
Move choke lever to open ( ) position.
If tank is not empty, pull starter handle.
If fuel tank is empty, after refilling, push the purge bulb (until fuel is visible in clear fuel return
line).
Pull starter handle.
20
Stopping the engine
WARNING
If engine does not stop, close choke to stall engine.
Have your shindaiwa dealer inspect and repair ignition switch before using the unit.
1. Throttle trigger.
2. Ignition switch.
ΠRelease throttle trigger and allow engine to idle.
ΠPlace ignition switch in the "STOP" position.
3. Spark plug cap.
4. Spark plug.
Always disconnect the spark plug cap (ignition cable) from the spark plug to ensure the engine
cannot be started before you work on the unit or leave it unattended.
21
Service maintenance guide
Area
Maintenance
Page
Before use
Air filter
Clean / Replace
24
•
Fuel system
Inspect
24
•
Fuel filter
Inspect / Clean / Replace
24
•
Spark plug
Inspect / Clean / Adjust / Replace
24
Cooling system
Inspect / Clean
24
Carburettor
Adjust / Replace and adjust
25
Silencer
Inspect / Tighten / Clean
25
Angle transmission
Grease
25
Starter rope
Inspect
-
•
Cut off knife
Inspect / Clean
-
•
Screws, bolts and nuts
Inspect, Tighten / Replace
-
•
IMPORTANT
Time intervals shown are maximum.
Actual use and your experience will determine the frequency of required maintenance.
* Or 50 hours, whichever occurs first.
22
Monthly
•
•
•
•
•*
Troubleshooting
Trouble
Cause
Remedy
Engine
- hard to start
- does not start
Engine
cranks
Fuel at carburettor
Not fuel at carburettor
ΠFuel filter clogged
ΠFuel line clogged
ΠCarburettor
ΠClean or replace
ΠClean
ΠAsk your shindaiwa dealer
Fuel at cylinder
No fuel at cylinder
ΠCarburettor
ΠAsk your shindaiwa dealer
Silencer wet with fuel
ΠFuel mixture is too rich
Œ
Œ
Œ
Œ
Spark at end of
plug wire
No spark at end of plug
wire
ΠIgnition switch off
ΠElectrical problem
ΠTurn switch on
ΠAsk your shindaiwa dealer
Spark at plug
No spark at plug
Œ
Œ
Œ
Œ
Spark gap incorrect
Covered with carbon
Fouled with fuel
Spark plug defective
Engine
does not
crank
ΠInternal engine problem
Engine runs Dies or accelerates poorly
Œ
Œ
Œ
Œ
Œ
Œ
Œ
Air filter dirty
Fuel filter dirty
Fuel vent plugged
Spark plug
Carburettor
Cooling system plugged
Exhaust port / silencer plugged
Œ
Œ
Œ
Œ
Open choke
Clean / replace air filter
Adjust carburettor
Ask your shindaiwa dealer
Adjust 0.6 to 0.7 mm
Clean or replace
Clean or replace
Replace plug
ΠAsk your shindaiwa dealer
Œ
Œ
Œ
Œ
Œ
Œ
Œ
Clean or replace
Clean or replace
Clean
Clean and adjust / replace
Adjust
Clean
Clean
WARNING
ΠAll trimmer service operations, other than items listed in the Operator's Manual, should be performed by competent
service personnel.
ΠFuel vapors are extremely flammable and may cause fire and / or explosion.
Never test for ignition spark by grounding spark plug near cylinder plug hole, otherwise serious personal injury may
result.
23
Maintenance and care
ΠIf you have any questions or problems, please contact your shindaiwa dealer.
Cleaning air filter
NOTE
If filter is excessive dirty or no longer fits properly, replace it.
1. Air cleaner cover.
2. Air filter.
ΠClose choke.
Loosen screw and remove air cleaner cover first, and then air filter.
ΠBrush dirt from filter or wash it in a suitable cleaner.
ΠDry it completely before installation.
ΠReinstall the air filter and air cleaner cover, and then tighten screw.
Check fuel system
ΠCheck before every use.
ΠAfter refuelling, make sure fuel does not leak or exude from around fuel pipe, fuel grommet
or fuel tank cap.
ΠIn case of fuel leakage or exudation there is a danger of fire.
Stop using he machine immediately and request your dealer to inspect or replace.
Replacing fuel filter
1. Fuel filter.
2. Fuel line.
ΠUse a piece of steel wire or the like to pick up fuel filter through fuel tank opening.
ΠPull old filter from fuel line.
ΠInstall new fuel filter.
Check spark plug
∗ Spark plug gap: 0.6 to 0.7 mm
Œ
Œ
Œ
Œ
Œ
Check plug gap.
Correct gap is 0.6 to 0.7 mm.
Inspect electrode for wear.
Inspect insulator for oil or other deposits.
Replace plug if needed and tighten to 15 - 17 N•m (150 to 170 kgf•cm).
Cooling system maintenance
IMPORTANT
To maintain proper engine operating temperature, cooling air must pass freely through the
cylinder fin area.
This flow of air carries combustion heat away from the engine.
Overheating and engine seizure can occur when:
ΠAir intakes are blocked, preventing cooling air from reaching the cylinder,
or
ΠDust and grass build up on the out side of the cylinder.
This build-up insulates the engine and prevents the heat from leaving.
Removal of cooling passage blockages or cleaning of cylinder fins is considered "Normal
Maintenance".
Any resultant failure attributed to lack of maintenance is not warranted.
1. Air intake.
2. Cylinder fins.
ΠRemove dust and dirt from between fins.
ΠBefore each use, remove accumulated debris from bottom engine intake grille located
between the fuel tank and starter.
24
Carburettor adjustment
WARNING
When carburettor adjustment is completed, cutting attachment should not move at
idle, otherwise serious personal injury may result.
CAUTION
When starting, idle speed adjuster should be adjusted not to rotate the cutting
attachment.
When there is some trouble with the carburettor, contact your dealer.
∗ Idle speed adjuster
H: Main adjusting screw (1 and ¾ turns ± ¼)
Every unit is test run at the factory and the carburettor is fine tuned for maximum performance.
Any change from this setting should be performed only with the aid of an accurate tachometer
(see Specification for r/min setting).
Before adjusting carburettor, clean or replace air filter, start engine and run several minutes to
bring it to operating temperature.
Idle speed adjustment
Turn idle speed adjuster clockwise until cutting attachment begins to turn, then turn screw out
anticlockwise until cutting attachment stops turning.
Turn screw anticlockwise an additional 1/4 turn (2750 r/min).
Cleaning silencer
1. Silencer.
2. Two bolts.
3. Silencer cover.
4. Hexagonal wrench (5 mm).
ΠClean deposits from silencer and tighten two bolts.
Angle transmission
NOTE
Use good quality lithium multi grease.
Do not overfill housing.
1. Plug (bolt).
2. Collar.
3. Angle transmission.
ΠRemove the plug and the collar from angle transmission.
ΠAdd grease, if necessary, using low pressure pump.
ΠReinstall the collar and the plug.
25
Storage
Long term storage (Over 30 days)
WARNING
Do not store in an enclosure where fuel fumes may accumulate or reach an open
flame or spark.
NOTE
For future reference, you should keep this Operator's Manual.
Do not store your unit for a prolonged period of time (30 days of longer) without performing
protective storage maintenance which includes the following:
1. Purge bulb
1) Drain the fuel tank completely.
A. Alternately press and release the purge bulb a number of times to remove the fuel from
the purge bulb.
B. Start the engine and run it at idle speed until it comes to a natural stop.
2) Always store fuel in approved container.
2. Ignition switch
3)
4)
5)
6)
Place the ignition switch in the "STOP" position.
Remove accumulation of grease, oil, dirt and debris from exterior of unit.
Perform all periodic lubrication and services that are required.
Tighten all the screws, bolts and nuts.
3. Spark plug cap.
4. Spark plug.
7) Remove the spark plug and pour 10 mL of fresh, clean, two-stroke engine oil into the
cylinder through the spark plug hole.
A. Place a clean cloth over the spark plug hole.
B. Pull the recoil starter handle 2 or 3 times to distribute the oil inside the cylinder.
C. Observe the piston location through the spark plug hole.
Pull the recoil starter handle slowly until the piston reaches the top of its travel and leave
it there.
8) Install the spark plug (Do not connect ignition cable).
5. Blade cover
9) Fit the blade cover onto trimmer blade.
Once the unit is sufficiently cool and dry, wrap the engine section in a plastic bag or other
covering before putting them in storage.
10)Store unit in a dry, dust free place, out of the reach of children and other unauthorized
persons.
26
Disposal procedure
ΠDispose of waste oil in accordance with local regulations.
ΠMajor plastic parts making up the product have codes showing their materials.
The codes refer to the following materials; dispose of those plastic parts in accordance with
local regulations.
Mark
Material
>PA6-GF<
Nylon 6 - Glass fibre
>PP-GF<
Polypropylene - Glass fibre
>PE-HD<
Polyethylene
ΠPlease contact your shindaiwa dealer in case you do not know how you should dispose of
waste oil / plastic parts.
27
Specifications
Model
Metal blade
Mass:
Unit without fuel, cutting attachment and shield (ISO11806)
kg
7.8
Volume: Fuel tank
L
0.76
Cutting attachment: (option)
Blade centre hole diameter
Blade rotational speed at maximum allowable engine speed
Thread
mm
r/min
Nylon line cutting head
25.4
10000
Left-handed M10 x 1.25
Gear ratio: Gear ratio and lubrication
1.36 reduction and good quality lithium grease
Rotational direction of output shaft seen from above:
Anticlockwise
External dimensions: Length × Width × Height
Engine:
Type
Engine displacement
Maximum shaft brake power,
measured in accordance with ISO 8893
Engine speed at maximum engine power
mm
1800 × 566 × 478
1800 × 566 × 511
Air cooled two stroke single cylinder
mL (cm3) 41.5
kW
r/min
1.70
7500
Recommended maximum engine speed
r/min
10400
Recommended engine idling speed
Carburettor
Ignition
Spark plug
Starter
Clutch
r/min
2750
Diaphragm type
Flywheel magneto, TCI system
NGK BMR6A
Recoil starter
Automatic centrifugal clutch
Fuel:
Regular grade petrol.
Minimum 89 Octane unleaded petrol is recommended.
Do not use fuel containing methyl alcohol or more than
10 % of ethyl alcohol.
Oil
Ratio
Fuel consumption at maximum engine power
Specific fuel consumption at maximum engine power
9750
Two stroke, air-cooled engine oil.
50 : 1 (2 %) for ISO-L-EGD Standard (ISO/CD13738),
JASO FC, FD grade and shindaiwa 50 : 1 oil or 25 : 1
(4 %) for JASO FB grade oil.
L/h
g/(kW•h)
28
1.26
898
1Memorandum and Back cover
Memorandum
X750 - 021 39 3
X750 284-190 3
2012
29
7-2 SUEHIROCHO 1-CHOME, OHME, TOKYO 198-8760, JAPAN
PHONE: 81-428-32-6118. FAX: 81-428-32-6145.
Printed in Japan
X750 - 021 39 3
X750 284-190 3
© 2012
1308J 0316 ES
30
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