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22 ENGLISH
TROUBLESHOOTING
Before asking for repairs, conduct your own inspection first. If you find a problem that is not explained in the manual,
do not attempt to dismantle the tool. Instead, ask Makita Authorized Service Centers, always using Makita replace-
ment parts for repairs.
Malfunction status
Cause
Action
The tool does not start.
Battery cartridge is not installed.
Install a charged battery cartridge.
Battery problem (low voltage).
Recharge the battery cartridges. If recharg-
ing is not effective, replace the battery
cartridge.
Main power switch is off.
The tool is automatically turned off if it is
un-operated for a certain period. Turn on
the main power switch again.
The motor stops running after a little use.
Battery's charge level is low.
Recharge the battery cartridges. If recharg-
ing is not effective, replace the battery
cartridge.
No oil on the chain.
Oil tank is empty.
Fill the oil tank.
Oil guide groove is dirty.
Clean the groove.
Poor oil delivery.
Adjust the amount of oil delivery with the
adjusting screw.
The tool does not reach maximum RPM.
Battery cartridge is installed improperly.
Install the battery cartridges as described
in this manual.
Battery power is dropping.
Recharge the battery cartridge. If recharg-
ing is not effective, replace the battery
cartridge.
The drive system does not work correctly.
Ask the authorized service center in your
region for repair.
The main power lamp is blinking in green.
Switch trigger is pulled under an unoperat-
able condition.
Pull the switch trigger after the main power
switch is turned on.
Abnormal vibration:
Stop the tool immediately!
Loose guide bar or saw chain.
Adjust the guide bar and saw chain
tension.
Tool malfunction.
Ask the authorized service center in your
region for repair.
The Torque Boost mode is not available
after replacing the battery cartridge with a
fully charged one.
Depending on the usage conditions, the
Torque Boost mode is not available after
replacing the battery cartridge.
Use the tool in the normal mode until the
installed battery cartridge becomes empty,
and then replace the battery cartridge with
a fully charged one, or recharge the battery
cartridge.
The saw chain cannot be installed.
The combination of saw chain and
sprocket is not correct.
Use the correct combination of saw chain
and sprocket by referring to the section for
specifications.