Stihl MS 460 Service Manual page 39

2
– Unscrew the spindle of service
tool ZS (1) 5910 007 2220 a little
(left-hand thread).
Make sure the retaining ring at the
clutch side has been removed,
b 6.3
: Position the service tool ZS (1)
5910 007 2220 against the
starter side so that the number 12
on the plate is at the bottom.
The cylinder flange faces up.
: Fit three M5x72 screws (arrows)
in the holes marked "12" and
tighten them down against the
drilled plate.
: Turn spindle (1) counter-
clockwise until the crankshaft. is
pushed out of the ball bearing.
38
1
2
: The crankshaft (1), connecting
rod (2) and needle bearing form
an inseparable unit. It must
always be replaced as a
complete unit.
When fitting a replacement
crankshaft, always install new ball
bearings and oil seals..
1
: Use press arbor (1)
1120 893 7200 to press the ball
bearing out of the crankcase,
from the outside inwards.
1
1
: Use press arbor (1)
1118 893 7200 to press the ball
bearing out of the crankcase,
from the inside outwards.
– Inspect both halves of the
crankcase for cracks and replace
if necessary.
The crankcase must be replaced as
a complete unit even if only one half
is damaged.
Check the condition of all other
parts, replace if necessary and
transfer to the new crankcase.
If only the ball bearings are
replaced, all rubber and polymer
components, such as oil suction
hose, stop buffers and annular
buffers may be left in position.
If the crankcase has to be replaced,
all the components still fitted must
be removed and checked for
damage. This involves the following
operations:
– Remove the suction hose with
pickup body, b 11.1
1
– Remove the chain tensioner,
b 5.5
– Unscrew the bar mounting studs,
b 5.6
– Remove the chain brake,
b 5.4.2
MS 460, MS 460 C