Stihl MS 171 Manual page 22

6.1 Clutch Drum
1
– 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.
1
Remove and install the clutch drum
(1), see instruction manual.
MS 171, MS 181, MS 211
All manuals and user guides at all-guides.com
: Pull off the needle cage (1).
– Clean the needle cage and
crankshaft stub, b 16
– Lubricate the needle cage and
crankshaft stub, b 16
R
80%
– 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.
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
– Reassemble all other parts in the
1
100%
!
1
2
outside of the clutch drum and
the brake band.
reverse sequence.
21