Stihl 064 - 3.2 Clutch

STIHL 064, 066 16
3. CLUTCH, CHAIN DRIVE,
CHAIN BRAKE AND CHAIN
TENSIONER
3.1 Clutch Drum/Chain
Sprocket
Top:
Removing needle cage
Bottom:
Top: Assembly sequence of chain drive
1 = Saw chain 1 = Spur sprocket (with clutch drum)
2 = Guide bar Top: 2 = Needle cage
3 = Sprocket cover Removing E-clip 3 = Washer
4 = E-clip
Bottom: Bottom: 5 = Clutch drum (for rim sprocket)
Disen
g
a
g
in
g
chain brake Removin
g
clutch drum or chain s
p
rocket 6 = Rim s
p
rocket
- Unscrew sprocket cover nuts and remove
sprocket cover.
- Remove saw chain and guide bar.
- Disengage the chain brake by pulling the
hand guard toward the front handle.
- Pry the E-clip off the crankshaft.
- Remove the washer from the clutch drum
or chain sprocket.
- Pull off the rim sprocket with clutch drum
or the spur spocket.
- Take the needle cage out of the clutch
drum or chain sprocket.
Reassemble in the reverse sequence.
Caution: Rim sprocket must be fitted
with chip ejector cavities facing
outward.
Note: Clean stub of crankshaft. Replace
the needle cage or wash it in clean white
spirit and lubricate with STIHL
multipurpose grease, see 12.2.
Rotate the clutch drum or spur sprocket,
apply slight pressure at the same time, until
the oil pump drive spring engages the slot
on the outside diameter of the drum.