Storing The Tool; Replacing The Sprocket - Makita DUA251 Instruction Manual

Cleaning the oil discharge hole
Small dust or particles may be built up in the oil dis-
charge hole during operation. These dust or particles
may impair the oil to flow and cause an insufficient
lubrication on the whole saw chain. When a poor chain
oil delivery occurs at the top of guide bar, clean the oil
discharge hole as follows.
1. Remove the sprocket cover and saw chain from
the tool.
2. Remove the small dust or particles using a slotted
screwdriver or the like.
1
2
Fig.55
► 1. Slotted screwdriver 2. Oil discharge hole
3.
Insert the battery cartridge into the tool. Pull the
switch trigger to flow built-up dust or particles off the oil
discharge hole by discharging chain oil.
4. Remove the battery cartridge from the tool.
Reinstall the sprocket cover and saw chain on the tool.

Replacing the sprocket

CAUTION:
A worn sprocket will damage a
new saw chain. Have the sprocket replaced in this
case.
Before fitting a new saw chain, check the condition of
the sprocket. If the sprocket is worn or damaged, ask
Makita Authorized Service Centers for replacement.
2
1
Fig.56
► 1. Sprocket 2. Areas to be worn out

Storing the tool

1. Clean the tool before storing. Remove any chips
and sawdust from the tool after removing the sprocket
cover.
2.
After cleaning the tool, run it under no load to lubri-
cate the saw chain and guide bar.
3. Cover the guide bar with the guide bar cover, and
then shorten the pipe.
4. Empty the oil tank.
22 ENGLISH