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17 Repairing
After every 50 hours of operation
► Clean the air filter.
Annually
► Have the long-reach hedge trimmer checked by a STIHL
dealer.
16.2 Lubricating the gearbox
► Unscrew the screw plugs (1).
► If no grease is visible at the screw plugs (1):
► Screw in the tube of "STIHL Getriebefett" (2).
► Squeeze 5 g of STIHL gear grease into the gear
housing.
► Unscrew the tube of "STIHL Getriebefett" (2).
► Screw in the screw plugs (1) and tighten them.
► Switch on the long-reach hedge trimmer for 1 minute.
The STIHL gear grease is distributed evenly.
16.3 Sharpening the cutting blade
STIHL recommends you have the cutting blades
resharpened by a STIHL dealer.
WARNING
The teeth of the cutting blades are very sharp. This may
result in the user cutting themselves.
► Wear work gloves made from resistant material.
► Switch off the long-reach hedge trimmer and remove the
battery.
► Use a STIHL flat file to sharpen each cutting edge on the
upper blade. The file only sharpens on the forward stroke.
Maintain the prescribed sharpening angle, @ 19.2.
► Turn the long-reach hedge trimmer over.
► Sharpen the remaining cutting edges.
► Deburr each cutting edge from below.
► Turn the long-reach hedge trimmer over.
► Deburr the remaining cutting edges.
► Use a damp cloth to remove the filing dust.
► Spray both sides of cutting blades with STIHL resin
solvent.
► Switch on the long-reach hedge trimmer for 5 seconds.
The cutting blades run. STIHL resin solvent is distributed
evenly.
► If you have any doubts, be sure to consult a STIHL dealer.
17.1 Repairing the Hedge Trimmer and Battery
The hedge trimmer, cutting blades and battery cannot be
repaired by the user.
► If the hedge trimmer or cutting blades are damaged: Do
not use your hedge trimmer and contact your STIHL
servicing dealer.
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