27
MS 171, MS 181, MS 211
7.6
Chain Tensioner
For machines with quick chain
tensioner see
b
5
– Remove the chain sprocket
cover, bar and chain,
b
5
– Troubleshooting,
b
4.2
:
Turn the spur gear (2) clockwise
until the tensioner slide (1) butts
against the right-hand end and
the screw (arrow) is visible.
:
Remove the screw (arrow).
2
1
533RA055 TG
533RA056 TG
:
Remove the spur gear (1) and
tensioner slide (2).
:
Inspect the cover (1), spur gear
assembly (2), tensioner slide (3)
and thrust pad (4) and replace if
necessary.
– Clean all disassembled parts,
b
16
– Lubricate the chain tensioner
with STIHL multipurpose grease,
b
16
– Install in the reverse sequence.
1
533RA057 TG
2
4
2
1
3
2
533RA058 TG
7.7
Bar Mounting Studs
– Remove the chain sprocket
cover, bar and chain,
b
5
:
Push stud puller 5910 893 0501
(1) over the collar stud (2) as far
as it will go. Unscrew the stud.
:
Unscrew collar stud (3).
:
Before installing, coat threads
(arrows) of collar studs with
Loctite,
b
16
– Fit the collar studs and tighten
them down firmly.
– Tightening torques,
b
3.5
– Reassemble all other parts in the
reverse sequence.
2
3
1
533RA003 TG
533RA004 TG
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