Crankcase; Removing The Crankshaft - Stihl 064 Service Manual

STIHL 064, 066
4.5

Crankcase

4.5.1 Removing the
Crankshaft
Driving out a dowel pin
- Remove chain brake - see 3.3.1.
- Remove the oil pump - see 10.4.
- Remove the flywheel - see 5.1.5.
- Remove the ignition module - see 5.1.6.
- On machines with heated handles,
remove the generator - see 9.5.
- Remove the cylinder and piston
- see 4.3.1.
- Remove the tank housing - see 11.10.
- Dowel pin at chain tensioner side: First
remove plug from other side of
crankcase and then use a suitable tool,
e.g. 5 mm (3/16") drift, to drive the dowel
pin out of the two halves of the
crankcase.
Top:
Crankcase mounting screws
Bottom:
Rotating spur gear clockwise
- Unscrew the six mounting screws
which join the two halves of the
crankcase.
- Use a screwdriver to rotate spur
gear clockwise until the tensioner
slide butts against the thrust pad.
- Pull the heat shield (foil) off the
crankcase.
Top:
Service tool AS 5910 890 2205
Bottom:
Service tool ZS 5910 890 2220
Note: Use service tools AS and
ZS to remove the crankshaft. Fol-
low the instructions supplied with
the tool.
- Back off spindle of service tool
AS all the way.
- Slip service tool AS over the two
collar studs, fit the hexagon nuts
(for sprocket cover) and tighten
them down by hand.
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