25 ENGLISH
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 effective, replace the
battery cartridge.
Main power switch is off.
The chain saw is automatically turned off 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 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 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 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
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 center 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 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.
Summary of Contents for DUC256
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Page 207: ...Anjo Aichi 446 8502 Japan www makita com EN FR DE IT NL ES PT DA EL TR 20190826 ...