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markings on the file holder – rest the
file holder on the tooth head and the
depth gauge
File only from the inside outward
N
The file only sharpens on the
N
forward stroke – lift the file on the
backstroke
Do not file tie straps and drive links
N
Rotate the file a little periodically in
N
order to avoid uneven wear
To remove file burr, use a piece of
N
hardwood
Check angle with file gauge
N
All cutters must be equally long.
With varying cutter lengths, the cutter
heights also vary and cause rough
running of the saw chain and chain
breakage.
All cutters must be filed down equal
N
to the length of the shortest cutter –
ideally, one should have this done
by a servicing dealer using an
electric sharpener
Depth gauge setting
The depth gauge determines the depth
to which the cutter penetrates the wood
and thus the chip thickness.
46
a
Required distance between depth
gauge and cutting edge
When cutting softwood outside of the
frost season, the distance can be
increased by up to 0.2 mm (0.008").
Chain pitch
Inches
(mm)
1/4 P
(6.35)
1/4
(6.35)
3/8 P
(9.32)
0.325
(8.25)
3/8
(9.32)
0.404
(10.26) 0.80
Lowering the depth gauges
The depth gauge setting is lowered
when the cutter is sharpened.
Check the depth gauge setting after
N
each sharpening
1
a
Lay the appropriate file gauge (1)
N
for the chain pitch on the saw chain
and press it against the cutter to be
checked – if the depth gauge
protrudes past the file gauge, the
depth gauge must be reworked
Saw chains with humped drive link (2) –
upper part of the humped drive link (2)
(with service mark) is lowered at the
same time as the depth gauge of the
cutter.
Depth gauge
Distance (a)
The rest of the humped drive link must
mm
(Inches)
not be filed; otherwise, this could
increase the tendency of the chain saw
0.45
(0.018)
to kick back.
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
(0.031)
N
2
N
WARNING
Rework the depth gauge so that it is
flush with the file gauge
Afterwards, dress the leading edge
of the depth gauge parallel to the
service mark (see arrow) – when
doing this, be careful not to further
lower the highest point of the depth
gauge
MS 150 C
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