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► Push the flexible shaft (6) into the flexible drive
tube (2).
The end of the flexible shaft (6) that was previ‐
ously in the powerhead now points toward the
coupling sleeve (5).
6
a
6
1
3
2
4
0000-GXX-7846-A0
► Turn flexible shaft (6) back and forth and push
it in direction of coupling sleeve (5) until dis‐
tance ‘a’ is 1.5 cm.
► Fit the flexible drive tube (2) with the flexible
shaft (6) in the powerhead and align it so that
the word TOP on the flexible drive tube (2)
faces up.
► Fit the screw (1).
► Secure throttle cable (4) to flexible drive tube
(2) with the cable retainers (3), making sure
the throttle cable (4) is not wrapped around
the drive tube (2).
16.3
Lubricating the Gearbox
2
1
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► Remove the screw plug (2).
► If no grease can be seen on the end of the
screw plug (2):
► Screw the tube (1) of STIHL gear grease
into the filler hole.
► Squeeze 5 g of STIHL gear grease into the
gear housing.
► Unscrew the tube (1) of STIHL gear grease.
► Refit and tighten down the screw plug (2)
firmly.
► Run the trimmer for 1 minute.
STIHL gear grease is distributed evenly.
16.4
Adjusting the Throttle Cable
► Start the engine.
90°
0000-GXX-8178-A0
► Lay the flexible drive tube on the ground in a
90° curve.
3
1
2
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► Pull the trigger (1) without depressing the lock‐
out lever (2).
► If the engine accelerates: Hold the trigger (1)
depressed and turn screw (3) counterclock‐
wise until there is no further audible drop in
engine speed.
The throttle cable was over-tensioned.
► Pull the trigger (1) and hold it there without
depressing the lockout lever (2).
► Turn screw (3) clockwise until the engine
accelerates.
► Turn screw (3) back 2 turns counterclockwise.
The engine idles and the throttle cable adjust‐
ment is correct.
► Shut off the engine.
16.5
Sharpening and Balancing a
Metal Cutting Attachment
Correctly sharpening and balancing metal cutting
attachments requires a lot of practice.
STIHL recommends you have metal cutting
attachments resharpened and balanced by a
STIHL servicing dealer.
► Sharpen the metal cutting attachment as
described in the instructions and on the pack‐
aging supplied with the cutting attachment you
are using.
16 Maintenance
English
0458-527-0121-B
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