Taking Care Of The Guide Bar; Checking And Replacing The Chain Sprocket - Stihl MSA 160 T Instruction Manual

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Taking Care of the Guide Bar

2
1
Flip the bar – after each sharpening
N
and each time the chain is changed
– to avoid uneven wear, especially
at the sprocket nose and on the
bottom
Periodically clean the oil inlet
N
hole (1), oil outlet channel (2) and
bar groove (3)
Measure groove depth – using the
N
measuring tool on the file gauge
(special accessory) – in the area
with the greatest wear
Chain type Chain pitch Minimum
groove depth
Picco 1/4" P 4.0 mm
(0.16 in.)
If the groove is not at least this deep:
Replace guide bar
N
26
Otherwise the drive links will grind
against the base of the groove – the
bottoms of the cutters and the tie straps
will not lie against the bar.
3
3
Checking and Replacing the
Chain Sprocket
Set hand guard to ƒ
N
Remove the battery
N
Remove chain sprocket cover, saw
N
chain and guide bar
Fitting a new chain sprocket
after use of two saw chains
–
or earlier if the wear marks (arrows)
–
are deeper than 0.5 mm (0.02 in.) –
otherwise the service life of the saw
chain is reduced – use check gauge
(special accessory) to test
Using two saw chains in alternation
helps preserve the chain sprocket.
2
1
Use a screwdriver to remove the E-
N
clip (1)
Remove chain sprocket (2)
N
MSA 160 T