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► If no grease can be seen on the inside of the screw plug,
screw the tube (2) of STIHL gear lubricant into the filler
hole.
► Squeeze no more than 0.2 oz. (5 g) of STIHL gear
lubricant into the gearbox.
► Remove the tube of STIHL gear lubricant.
► Insert the screw plug and tighten it.
NOTICE
Do not completely fill the gearbox with grease.
22.4 Inspecting and Maintaining the Cutting Blades
WARNING
To reduce the risk of personal injury from unintended
activation, remove the connecting cord before inspecting the
cutting blades or carrying out any maintenance, @ 7. To
help prevent injuries, always wear heavy-duty work gloves
when handling the hedge trimmer or its cutting blades,
@ 6.3. STIHL recommends having the cutting blades
sharpened by an authorized STIHL servicing dealer.
Although it is best to have the cutting blades sharpened by
a dealer on a workshop sharpener, it is possible to use a flat
crosscut sharpening file.
Sharpen the cutting blades when cutting performance
begins to deteriorate, i.e., blades frequently snag on
branches or fail to cut material cleanly.
To sharpen the cutting blades with a file:
36
► Sharpen each cutting edge of the upper cutting blade with
a sharpening file. Always file toward the cutting edge with
a forward motion matching the sharpening angle, @ 24.2.
Sharpen on the forward stroke. Lift off the blade on the
backstroke.
► Only sharpen the cutting edges. Do not file blunt
projecting parts of the cutting attachment, or the cutting
blade guard. Make sure your sharpening stroke matches
the sharpening angle, @ 24.2.
► Turn the hedge trimmer over and sharpen the cutting
edges of the lower cutting blade.
► Use a whetstone to remove any burrs from the cutting
edges. Remove as little material as possible.
► After sharpening, wipe away filing or grinding dust with a
dry or slightly dampened cloth and then spray the cutting
blades with a resin solvent, such as STIHL Resin
Remover and Lubricant.
NOTICE
Operating the machine with dull or damaged cutting blades
may overload the motor. Keeping the cutting blades sharp
helps maintain cutting performance and the expected life of
the product.
22 Inspection and Maintenance
0458-021-8601-A
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