Replacing The; Chain Catcher; Spiked Bumper - Stihl MS 650 Manual

Clean stub of crankshaft. Wash the
needle cage, examine it for damage
and replace if necessary. Lubricate
needle cage with STIHL multi-
purpose grease – b 17.
: Rotate clutch drum/chain
sprocket and apply slight
pressure at the same time until
the oil pump drive spring
engages the notch (see arrow).
Reassemble in the reverse
sequence.
MS 650, MS 660
5.2

Replacing the

Chain Catcher

2
1
– Remove the chain sprocket
cover, chain and bar – b 5
: Take out the screw (1).
: Remove the chain catcher (2).
Reassemble in the reverse
sequence.
5.3

Spiked Bumper

3
– Remove the chain sprocket
cover, chain and bar – b 5
: Hold the self-locking nut steady
and take out the screw (1).
: Take out the screw (3).
: Remove the spiked bumper (2)
and chain catcher.
Reassemble in the reverse
sequence.
1
2
19