Stihl MS 240 Instruction Manual page 47

Ignition side of crankcase
: Use a suitable punch to carefully
drive out the oil seal.
: Check and clean the crankcase
or replace if necessary.
If this half of the crankcase is in
order, install a new ball bearing.
1
– Heat the area of the bearing seat
to about 150 °C (300 °F).
The bearing (1) drops out as soon
as this temperature is reached.
46
– Heat the area of the bearing seat
to about 150 °C (300 °F).
– Position the ball bearing so that
its open side (balls visible) face
the outside of the crankcase.
: Push the ball bearing home as far
as stop.
This operation must be carried out
quickly because the bearing
absorbs heat and begins to expand.
Check that the bearing is properly
seated and, if necessary, use the
press arbor 1120 893 7200 to press
it fully into the bearing seat.
Clutch side of crankcase
: Use a suitable punch to carefully
drive out the oil seal.
: Check and clean the crankcase
or replace if necessary.
If this half of the crankcase is in
order, install a new ball bearing.
1
– Heat the area of the bearing seat
to about 150 °C (300 °F).
The bearing (1) drops out as soon
as this temperature is reached.
As the clutch side of the crankcase
does not have a fixed bearing seat,
the oil pump must be installed
before the ball bearing – the oil
pump then serves as the stop.
– Install the oil pump,
adjustable, b 13.5,
non-adjustable, b 13.4
MS 240, MS 260, MS 260 C