Stihl 034 Series User Manual page 18

3
1 2
Take out the cover plate
mounting screw (1).
Remove the cover plate (2) with
retainer (3) from the spur gear.
1
4 3
Pull out the spur gear (1).
Take out the tensioner slide (3)
with adjusting screw (4) and
thrust pad (2).
– Inspect the teeth on the spur gear
and adjusting screw, remove
thrust pad if necessary.
– Take the adjusting screw out of
the tensioner slide and replace
the parts.
Install in the reverse sequence.
18
Check that O-ring is fitted in spur
gear.
– Lubricate O-ring with a little oil
before fitting the spur gear.
Note:
Coat teeth of adjusting screw and
spur gear with grease,
before refitting.
The adjusting screw and spur gear
must be replaced as a matching
pair.
2
4.7 Bar Mounting Studs
– Remove chain sprocket cover
and cutting attachment -
Push stud puller 5910 893 0501
over the collar stud as far as it will
go. Use a 15 mm wrench to
unscrew the collar stud counter-
clockwise.
see 13.2,
– Before installing, coat thread of
collar stud with LOCTITE -
13.2.
– Install and tighten down the collar
studs (see "Tightening Torques").
see 4.1.
see
034, 036, 036 QS