Oil Seals - Stihl MS 261 User Manual

6.3

Oil Seals

It is not necessary to disassemble
the engine to replace the oil seals.
Ignition side
– Remove the fan housing, b 8.2
– Remove the flywheel, b 7.6
Machines with heating
– Remove the generator and put it
to one side, b 13.7
Machines with heating
1
Take care not to damage the
crankshaft stub.
– Free off the oil seal in its seat by
tapping it with a suitable tube or a
punch.
: Apply puller (1) 5910 890 4400
with No. 3.1 jaws 0000 893 3706.
– Clamp the puller arms.
– Pull out the oil seal.
38
Installing
– Clean the sealing face, b
– Lubricate sealing lips of new oil
seal with grease, b 15
1
: Fit the installing sleeve (1)
1141 893 4600.
– Slip the oil seal, open side facing
the crankcase, over the installing
sleeve.
– Remove the installing sleeve (1).
1
2
: Use press sleeve (2)
1141 893 2400 to install the oil
seal (1).
The seating face must be flat and
free from burrs.
– Wait about one minute, then
rotate the crankshaft several
times.
– Degrease the crankshaft taper,
b 15 b
b 15
– Reassemble all other parts in the
reverse sequence.
Clutch side
– Remove the clutch, b 4
– Remove the oil pump, b 11.3
: Remove the retaining ring (1).
1
MS 261, MS 261 C