Cleaning The Guide Bar; Replacing The Sprocket - Makita XCU10 Instruction Manual

— After sharpening the chain, check the height
of the depth gauge using the chain gauge
tool (optional accessory).
— Remove any projecting material, how-
ever small, with a special flat file (optional
accessory).
— Round off the front of the depth gauge again.

Cleaning the guide bar

Chips and sawdust will build up in the guide bar
groove. They may clog the bar groove and impair
the oil flow. Clean out the chips and sawdust every
time when you sharpen or replace the saw chain.
Cleaning the sprocket cover
Chips and saw dust will accumulate inside of the
sprocket cover. Remove the sprocket cover and saw
chain from the tool then clean the chips and saw dust.
Cleaning the oil discharge hole
Small dust or particles may be built up in the oil
discharge 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. 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 dam-
age a new saw chain. Have the sprocket
replaced in this case.
Before fitting a new saw chain, check the condi-
tion of the sprocket.
1
► 1. Sprocket 2. Areas to be worn out
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