Stihl 064

STIHL 064, 066 37
Top:
Pressing in ball bearing with arbor Top:
1119 893 7200 1 = mounting screw
2 = Annular buffer
Bottom:
Fitting annular buffer in ignition side Bottom:
of crankcase Threaded sleeve 5910 893 2420 fitted
Ball bearin
g
in
p
osition 1 = Groove on s
p
indle of service tool ZS
- 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.
If no facilities for heating the crank- - Place the annular buffer in posi-
case are available, use the press tion, fit mounting screw and
arbor to install the ball bearing. tighten down firmly.
- Push both annular buffers into - Extend the spindle of service tool
the crankcase bores, from the ZS fully and then screw the
outside, until their annular threaded sleeve onto the spindle
grooves engage the inner rib. as far as it will go.