Rotary Shaft Seals - Stihl TS 400 Manual

STIHL TS 400
5.4

Rotary shaft seals

The engine need not be dismantled
if only the rotary shaft seals are to be
replaced.
Clutch side:
- Remove clutch, see chapter 4.1.
Note: Lightly knock against the rotary
shaft seal with a suitable tube or punch
to drive it out of its seat.
• Position extractor (1) (jaws with
No. 1 profile).
- Tension arms.
- Draw out rotary shaft seal.
Important! The crankshaft stub
must not be damaged.
- Clean the sealing face with a
conventional solvent-based
degreasing agent without CFCs
and halogenated hydrocarbons as
described in chapter 11.2.
- Coat the sealing lips of the rotary
shaft seal with grease,
see chapter 11.2.
• Slide assembly sleeve (1) over
crankshaft stub.
- Slide the rotary shaft seal over the
assembly sleeve with the open side
facing the crankcase.
• Press it into place with press
sleeve (1).
- Remove assembly sleeve.
- Install clutch, see chapter 4.1.
Ignition side:
- Remove flywheel,
see chapter 6.5.
- Install jaws with profile 3.1 on
extractor.
Note: Lightly knock against the
rotary shaft seal with a suitable tube
or punch to drive it out of its seat.
• Fit extractor (1).
- Tension arms.
- Draw out rotary shaft seal.
Important! The crankshaft stub must
not be damaged.
- Clean the sealing face with a
conventional solvent-based
degreasing agent without CFCs and
halogenated hydrocarbons as
described in chapter 11.2.
- Coat the sealing lips of the rotary
shaft seal with grease,
see chapter 11.2.
17