Stihl MS 211

21MS 171, MS 181, MS 211
6.1 Clutch Drum
– On machines with ErgoStart,
relieve spring tension, b 10.4
– Remove the chain sprocket
cover, bar and chain, b 5
: Pull the hand guard (1) towards
the front handle.
R
Remove and install the clutch drum
(1), see instruction manual.
533RA022 TG
1
TOP
1
533RA023 TG
: Pull off the needle cage (1).
– Clean the needle cage and
crankshaft stub, b 16
– Lubricate the needle cage and
crankshaft stub, b 16
– Inspect the clutch drum (1) for
signs of wear.
If there are signs of serious wear on
the inside diameter of the clutch
drum (1), check the remaining wall
thickness. If it is less than about
80% of the original thickness, install
a new clutch drum.
TOP
533RA024 TG
1
VA
148RA101
80%
100%
1
!
The notch (arrow) in the clutch drum
must engage the worm’s spring (1).
Use the mark (2) for alignment.
– Apply thin coating of oil to the
outside of the clutch drum and
the brake band.
– Reassemble all other parts in the
reverse sequence.
TOP
2
1
533RA025 TG
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