Inspection And Maintenance; Inspecting And Maintaining The Pole Pruner; Inspecting And Maintaining The Chain Sprocket; Inspecting And Maintaining The Guide Bar - Stihl HTA 66 Notice D'emploi

23 Inspection and Maintenance

23 Inspection and Maintenance

23.1 Inspecting and Maintaining the Pole Pruner

WARNING
To reduce the risk of personal injury from unintended
activation, remove the battery before inspecting the pole
pruner or carrying out any maintenance, @ 9. 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 pole pruner includes the
following activities:
► Inspecting the chain sprocket periodically and having a
worn chain sprocket replaced by an authorized STIHL
servicing dealer.
► Inspecting the guide bar for proper groove depth and
spread and replacing the guide bar 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.
If you make a warranty claim for a component which has not
been serviced or maintained properly, coverage may be
denied.

23.2 Inspecting and Maintaining the Chain Sprocket

► Switch off the pole pruner and remove the battery.
► Remove the chain sprocket cover, saw chain and guide
bar.
0458-191-8221-A
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.
Alternating between two chains helps reduce wear to the
chain sprocket.

23.3 Inspecting and Maintaining the Guide Bar

► Switch off the pole pruner and remove the battery.
► Remove the guide bar and saw chain, @ 14.3.2.
► Measure the depth of the guide bar groove in the area with
the greatest wear using the measuring tool on the file
gauge (special accessory, not included).
► Replace the guide bar if the measured depth is less than
the required minimum depths stated in @ 25.3.
English
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