Inspection And Maintenance; Inspecting And Maintaining The Chain Saw; Inspecting And Maintaining The Chain Sprocket; Inspecting And Maintaining The Guide Bar - Stihl MSA 220.0 T Instruction Manual

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25 Inspection and Maintenance

25.1 Inspecting and Maintaining the Chain Saw

WARNING
To reduce the risk of personal injury from unintended
activation, remove the battery before inspecting the chain
saw or carrying out any maintenance, @ 10.1. Carry out
only the maintenance operations described in this manual.
There are no user-authorized repairs. STIHL recommends
that repair work be performed by authorized STIHL servicing
dealers.
Proper maintenance of the chain saw includes the following
activities:
► Clean the air filter every month of operation.
► Inspecting the chain sprocket periodically and having a
worn sprocket replaced by an authorized STIHL servicing
dealer.
► Inspecting the guide bar for proper groove depth and
spread and replacing the guide bar it if it shows signs of
excessive wear or damage.
► Periodically sharpening the chain, maintaining the depth
limiting guides at the appropriate height, and replacing the
saw chain when indicated by the relevant wear marks, or
when the chain is damaged or shows signs of excessive
wear.
► Having worn, missing or damaged safety labels replaced
by an authorized STIHL servicing dealer.
► Having the fan housing cleaned semi-annual by an
authorized STIHL servicing dealer.
If you make a warranty claim for a component which has not
been serviced or maintained properly, coverage may be
denied.

25.2 Inspecting and Maintaining the Chain Sprocket

► Switch off the chain saw, engage the chain brake and
remove the battery.
► Disengage the chain brake, @ 17.2.
54
► Remove the chain sprocket cover, saw chain and guide
bar.
a
► Check the chain sprocket cover for wear marks.
► If the wear marks are deeper than a = 0.020 in. (0.5 mm),
have the chain sprocket replaced.
STIHL recommends using genuine STIHL chain sprockets to
ensure optimal functioning of the chain brake.
Alternating between two chains helps reduce wear to the
chain sprocket.

25.3 Inspecting and Maintaining the Guide Bar

► Switch off the chain saw, engage the chain brake and
remove the battery.
► Remove the guide bar and saw chain, @ 16.2.2.
25 Inspection and Maintenance
0458-007-8601-A

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