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22
ENGLISH
TROUBLESHOOTING
Before asking for repairs, conduct your own inspection rst. If you nd 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 replacement parts for repairs.
Malfunction status Cause Action
The chain saw does not start. Battery cartridge is not installed. Install a charged battery
cartridge.
Battery problem (low voltage). Recharge the battery cartridges.
If recharging is not eective,
replace the battery cartridge.
Main power switch is o. The chain saw is automatically
turned o if it is un-operated for
a certain period. Turn on the
main power switch again.
The saw chain does not run. Chain brake activated. Release chain brake.
The motor stops running after a
little use.
Battery's charge level is low. Recharge the battery cartridges.
If recharging is not eective,
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 chain saw 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 recharging is not eective,
replace the battery cartridge.
The drive system does not work
correctly.
Ask the authorized service cen-
ter in your region for repair.
The main power lamp is blinking
in green.
Switch trigger is pulled under an
unoperatable condition.
Pull the switch trigger after the
main power switch is turned on
and the chain brake is released.
Chain does not stop even the
chain brake is activated:
Stop the machine
immediately!
The brake band is worn down. Ask the authorized service cen-
ter in your region for repair.
Abnormal vibration:
Stop the machine
immediately!
Loose guide bar or saw chain. Adjust the guide bar and saw
chain tension.
Tool malfunction. Ask the authorized service cen-
ter 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 condi-
tions, the Torque Boost mode is
not available after replacing the
battery cartridge.
Use the tool in the normal mode
until the installed battery car-
tridge 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
specications.
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