20 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 chain saw does not start.
Two battery cartridges are not installed.
Install two charged battery cartridges.
Battery problem (low voltage).
Recharge the battery cartridges. If recharg-
ing 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 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 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 cartridges. 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.
Switch trigger is pulled under an unoperat-
able 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.
OPTIONAL
ACCESSORIES
CAUTION:
These accessories or attachments
are recommended for use with your Makita tool
specified in this manual.
The use of any other
accessories or attachments might present a risk of
injury to persons. Only use accessory or attachment
for its stated purpose.
If you need any assistance for more details regard-
ing these accessories, ask your local Makita Service
Center.
•
Saw chain
•
Guide bar
•
Guide bar cover
• File
•
Tool bag
•
Makita genuine battery and charger
WARNING:
If you purchase a guide bar of
different length from the standard guide bar, also
purchase a suitable guide bar cover together. It
must fit and fully cover the guide bar on the chain
saw.
NOTE:
Some items in the list may be included in the
tool package as standard accessories. They may
differ from country to country.
Summary of Contents for DUC405
Page 2: ...Fig 1 2 1 18 3 4 5 6 11 13 15 12 19 7 8 10 17 9 14 16 Fig 2 1 2 3 Fig 3 1 2 Fig 4 2 ...
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Page 4: ...1 2 3 4 Fig 11 1 Fig 12 1 2 3 Fig 13 1 Fig 14 1 2 3 Fig 15 1 Fig 16 1 2 Fig 17 Fig 18 4 ...
Page 5: ...Fig 19 Fig 20 Fig 21 Fig 22 A B A B Fig 23 Fig 24 2 1 2 45o 1 45o Fig 25 1 2 2 3 3 Fig 26 5 ...
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