Installing The Crankshaft - Stihl MS 440 Service Manual

This involves the following
operations:
– Remove the intake hose with
pickup body – b 12.7
– Remove the chain tensioner –
b 5.5
– Unscrew the bar mounting
studs – b 5.6
– Remove the chain brake –
b 5.4.2
3
2 1
: Press the annular buffer (1) out
the crankcase half on the fan
side.
: Unscrew the oil tank cap (2).
: Press the cord (3) out of the
mount and remove it with the tank
cap.
38
: Press the annular buffer (arrow)
out of the crankcase half on the
clutch side.
6.7.2

Installing the crankshaft

New crankcases are supplied with
preassembled ball bearings and oil
seals. It is necessary to stamp the
machine's serial number on the
crankcase with 2.5 mm
(0.98 in) figure stamps.
If only the ball bearings have to be
replaced, make sure that the
annular / stop buffers, intake hose
and oil tank cap have been removed
before heating the crankcase.
If the original crankcase is used
again, remove all gasket residue
and clean the mating surfaces
thoroughly to guarantee a perfect
seal.
The following additional operations
are required when using a new
crankcase:
– Install the chain brake – b 5.4.3
– Fit the bar mounting studs –
b 5.6
– Install the chain tensioner –
b 5.5
MS 440, MS 440 C