STIHL 064, 066 34
- Pull the oil pickup hose out of bore
in crankcase.
- Inspect the two halves of the
crankcase for cracks and replace if
necessary.
Note: The crankcase must be re-
placed as a complete unit even if only
one half is damaged.
All other parts which are still serv-
iceable can then be transferred to the
new crankcase after the new bearings
have been fitted, i.e. the crankcase
has to be heated for this purpose.
Note: Use the stud puller to remove
and install the bar mounting studs
- see 3.5.
- The crankshaft, connecting rod - Use press arbor to press the ball
and needle bearing form an in- bearing out of its seat.
separable unit. This means that
the crankshaft must always be - Use a screwdriver or similar tool
replaced as a complete unit in to knock the oil seal out of its
the event of damage to any one seat at the ignition side.
of these parts. When fitting a
replacement crankshaft always - From inside the crankcase, use
install new oil seals and ball bear- arbor 1122 893 7200 to press the
ings. ball bearing out of its seat.
- Remove the gasket from the
crankcase sealing face.
- Pry the oil seal out of the ball
bearing at the clutch side.
Top: Top:
1 = Crankshaft Pressing out ball bearing at clutch side
2 = Connecting rod with press arbor 1119 893 7200
Bottom: Bottom: Pressing out ball bearing at ignition
Pr
in
out oil seal at clutch side Knockin
out oil seal at i
nition side side with arbor 1122 893 7200