Oil Seals - Stihl MS 270 User Manual

6.3

Oil Seals

It is not necessary to disassemble
the complete crankcase to replace
the oil seals.
Flywheel side
– Remove the flywheel
– see 7.3.
– Free off the oil seal in its seat by
tapping it with a punch.
Apply puller (1) 0000 890 4400
with No. 3.1 jaws.
– Clamp the puller arms.
– Pull out the oil seal.
Take care not to damage the
crankshaft stub.
36
– Clean sealing face with STIHL
cleaner – see 14.
– Lubricate sealing lip of oil seal
with grease – see
– Thinly coat the outside diameter
of the oil seal with sealant
– see 14.
1
– Slip the oil seal, open side facing
the crankcase, over the
crankshaft stub.
Use the press sleeve (1)
1108 893 2405 to install the oil
seal.
The seating face must be flat and
free from burrs.
– Wait about one minute, then
rotate the crankshaft several
times.
– Install the flywheel –
– Fit the fan cover –
14. Clutch side
– Remove the clutch –
1
Remove the drive spring (1) with
worm.
– Remove the oil pump –
Remove the retaining ring
(arrow).
– Free off the oil seal in its seat by
tapping it with a punch.
see 7.3.
see 8.2.
see 5.3.
1
see 11.4.
MS 270, MS 280