Stihl 064 Service Manual page 37

STIHL 064, 066
Ball bearing in position
- Heat area of bearing seat on ignition side
of crankcase to approx. 120 °C (250 °F).
- Press ball bearing fully home as far as
stop. The open side of the bearing must
face upward.
Important: The ball bearing is closed at one
side. The open side must be on the inside of
the crankcase to guarantee proper lubrica-
tion.
Note: The ball bearing can be fitted by hand
if the crankcase is heated as specified.
However, this operation must be carried
out very quickly because the bearing
absorbs heat immediately and begins to
expand.
Top:
Pressing in ball bearing with arbor
1119 893 7200
Bottom:
Fitting annular buffer in ignition side
of crankcase
1 = Groove
If no facilities for heating the crank-
case are available, use the press
arbor to install the ball bearing.
- Push both annular buffers into
the crankcase bores, from the
outside, until their annular
grooves engage the inner rib.
Top:
1 = mounting screw
2 = Annular buffer
Bottom:
Threaded sleeve 5910 893 2420 fitted
on spindle of service tool ZS
- Place the annular buffer in posi-
tion, fit mounting screw and
tighten down firmly.
- Extend the spindle of service tool
ZS fully and then screw the
threaded sleeve onto the spindle
as far as it will go.
37