Makita UC3030A Instructions D'emploi page 21

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- The file holder makes file guidance easier. It is
marked for the correct 30° sharpening angle (keep
the marks parallel with the chain when filing, see
illustration) and limits the cut depth to the correct 4/5
of the file diameter. (Fig. 56)
- After having sharpened the chain, the height of the
depth limiter must be checked by means of a chain
gauge.
- Correct even the smallest excess height with a special
flat file (1).
- Round off the front of the depth limiter (2). (Fig. 57)
Cleaning the guide bar, lubricating the
sprocket nose (Fig. 58)
CAUTION: Protective gloves must be worn.
Regularly inspect the bearing surfaces of the guide bar
for damage, and clean them with a suitable tool.
If the saw is used intensively it will be necessary to
lubricate the return sprocket bearings regularly (once
a week). To do this, first thoroughly clean the 2 mm
hole at the tip of the guide bar, and then press in a small
amount of multi-purpose grease.
Multi-purpose grease and grease guns are available as
accessories.
Multi-purpose grease
Grease gun
Replacing the saw chain (Fig. 59)
CAUTION:
Use only chains and guide bars designed for this
saw!
Check the sprocket (1) before mounting a new chain.
CAUTION:
Worn out sprockets (2) may damage the new chain and
must therefore be replaced.
Do not attempt to replace the sprocket yourself.
Sprocket replacement requires special training and
tools and must be done at a MAKITA service centre.
(Fig. 60)
Inspecting and replacing the carbon brushes
(Fig. 61)
Important:
Inspect the carbon brushes at regular intervals!
A notch on the brush shows the limit of wear.
NOTE:
The carbon brush is very delicate, so be careful not to
let it drop. When taking it out, be sure to note the
position it was installed in, since each brush is run
in with the rotor.
- Use a slotted bit screwdriver to unscrew the cover (1),
and then pull out the brush (2).
- If the wear limit has not yet been reached, put the
brush back in the same position and screw the cover
(1) back on.
- Run the saw briefly (about a minute) so the brushes
can run in again.
Important: Now test the run-out brake. If the saw chain
does not come to a full stop within two second, run the
(order no. 944 360 000)
(order no. 944 350 000)
saw again briefly and repeat the test until the brake
functions properly.
NOTE: After installing new carbon brushes, run the saw
about 5 minutes and then check the run-out brake.
21

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Uc3530aUc4030aUc4530aUc3530apUc4030ap

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