Cleaning The Guide Bar - Makita UC002G Manual De Instrucciones

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File and file guiding
Use a special round file (optional accessory)
for saw chains to sharpen the chain. Normal
round files are not suitable.
Diameter of the round file for each saw
chain is as follows:
Chain blade 90PX : 4.5 mm (3/16")
Chain blade 91PX : 4.0 mm (5/32")
Chain blade 25AP : 4.0 mm (5/32")
The file should only engage the cutter on
the forward stroke. Lift the file off the cutter
on the return stroke.
Sharpen the shortest cutter first. Then the
length of this shortest cutter becomes the
standard for all other cutters on the saw chain.
Guide the file as shown in the figure.
1
2
Fig.30
► 1. File 2. Saw chain
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 mark-
ings parallel to the saw chain) and limits
the depth of penetration (to 4/5 of the file
diameter).
30
Fig.31
► 1. File holder
After sharpening the chain, check the height
of the depth gauge using the chain gauge
tool (optional accessory).
1
1/5
Fig.32
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.
Fig.33
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.
Fig.34
20
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