Makita XBU02 Manuel D'instruction page 39

Chips and sawdust will build up in the guide bar groove,
clogging it and impairing oil flow. Always clean out the
chips and sawdust when sharpening or replacing the
saw chain.
Cleaning the oil discharge hole
Small dust or particles may be built up in the oil
discharge hole during operation.
Small dust or particles built up in the oil discharge hole
may impair the oil discharge 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.
Remove the battery cartridge from the tool.
Remove the sprocket cover and saw chain from the tool.
(Refer to the section titled " Installing or removing saw
chain ".)
014671
Remove the small dust or particles using a slotted
screwdriver with a slender shaft or the like.
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.
Remove the battery cartridge from the tool.
Reinstall the sprocket cover and saw chain on the tool.
Replacing the sprocket
1
010927
Before fitting a new saw chain, check the condition of
the sprocket.
CAUTION:
A worn sprocket will damage a new saw chain.
•
Have the sprocket replaced in this case. The
sprocket needs to be installed so that it always
faces as shown in the figure.
1. Slotted
screwdriver
1
1. Sprocket
2. Locking ring
2
1
2
014715
Always fit a new locking ring when replacing the
sprocket.
Replacing carbon brushes
001145
Remove and check the carbon brushes regularly.
Replace when they wear down to the limit mark. Keep
the carbon brushes clean and free to slip in the holders.
Both carbon brushes should be replaced at the same
time. Use only identical carbon brushes.
1
014672
Use a screwdriver to remove the brush holder caps.
Take out the worn carbon brushes, insert the new ones
and secure the brush holder caps.
Storing tool
Clean the tool before storing. Remove any chips and
sawdust from the tool after removing the sprocket cover.
After cleaning the tool, run it under no load to lubricate
the saw chain and guide bar.
Cover the guide bar with the guide bar cover.
Remove oil from the oil tank to empty it and place the
chain saw.
To maintain product SAFETY and RELIABILITY, repairs,
any other maintenance or adjustment should be
performed by Makita Authorized or Factory Service
Centers, always using Makita replacement parts.
15
1. Locking ring
2. Sprocket
1. Limit mark
1
1. Brush holder
cap
2. Screwdriver
2