Makita DUC252 Manual De Instrucciones página 16

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Guide the file as shown in the figure.
The file can be guided more easily if a file holder
(optional accessory) is employed. The file holder
has markings for the correct sharpening angle of
30 ° (align the markings parallel to the saw chain)
and limits the depth of penetration (to 4/5 of the
file diameter).
30
After sharpening the chain, check the height of the
depth gauge using the chain gauge tool (optional
accessory).
Remove any projecting material, however small,
with a special flat file (optional accessory).
Round off the front of the depth gauge again.
Cleaning guide bar
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 dis-
charge hole during operation.
Small dust or particles built up in the oil discharge hole
may impair the oil discharge flow and cause an insuffi-
cient 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 ".)
► 1. Slotted screwdriver
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. Sprocket 2. Locking ring
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.
16 ENGLISH
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