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TROUBLESHOOTING
Before making a request for repairs, check for trouble by yourself. If any abnormality is found, control your machine according to the description
of this manual. Never tamper or dismount any part contrary to the description. For repairs, contact Authorized Service Agent or local dealership.
State of abnormality
Engine does not start
Engine stops soon
Engine speed does not increase
The cutting attachment does not rotate.
Stop engine immediately!
The unit vibrates abnormally.
Stop engine immediately!
The cutting attachment does not stop.
Stop engine immediately!
Engine does not stop
Run engine at idling, and set choke lever
to CLOSE
The nylon cutting cord does not feed.
The nylon cutting cord is not cut off at the
correct length.
When the engine does not start after warm-up operation:
If there is no abnormality found for the check items, open the throttle by about 1/3 and start the engine.
Probable cause (malfunction)
Failure to operate primer pump
Low pulling speed of starter rope
Lack of fuel
Clogged fuel filter
Broken fuel tube
Deteriorated fuel
Detached plug cap
Contaminated spark plug
Abnormal clearance of spark plug
Other abnormality of spark plug
Abnormal carburetor
Starter rope cannot be pulled
Abnormal drive system
Insufficient warm-up
Choke lever is set to "CLOSE" although
engine is warmed up.
Clogged fuel filter
Contaminated or clogged air cleaner
Abnormal carburetor
Abnormal drive system
The cutting attachment is not tightened
securely.
A twig is caught between the cutting
attachment and the protector.
The drive system does not work properly.
The cutting attachment is broken.
The cutting attachment is not tightened
securely.
One end of nylon cutting cord has been
broken and the nylon cutting head got
unbalanced.
The drive system does not work properly.
The power unit does not work properly.
Detached connector
Abnormal electric system
The cord is used up or tangled in the spool.
The cord cutter on the protector is damaged
or missing.
The cord extends past the protector.
19
Remedy
Push 7 to 10 times
Pull strongly
Feed fuel
Clean
Straighten fuel tube
Deteriorated fuel makes starting more difficult.
Replace with new fuel. (Recommended
replacement: 1 month)
Attach securely
Clean
Adjust clearance
Replace
Make request for inspection and maintenance.
Make request for inspection and maintenance.
Make request for inspection and maintenance.
Perform warm-up operation
Set to "OPEN"
Clean or replace
Clean
Make request for inspection and maintenance.
Make request for inspection and maintenance.
Tighten the cutting attachment securely.
Remove the foreign matter.
Ask Dolmar authorized service center to
inspect and repair it.
Replace the cutting attachment with new one.
Tighten the cutting attachment securely.
Feed the nylon cutting cord with tapping the
nylon cutting head on the ground.
Ask Dolmar authorized service center to
inspect and repair it.
Refer to the instruction manual of the power
unit.
Attach securely
Make request for inspection and maintenance.
Rewind the cord.
Ask Dolmar authorized service center to
replace the cord cutter.
Rewind the cord.
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