Oil Seals - Stihl 020 T Service Manual

4.3

Oil Seals

It is not necessary to disassemble
the complete crankcase if only the oil
seals have to be replaced.
Clutch side:
• Remove the oil pump - see 9.3.1.
• Rotate the angled ends on the
hooks (1) of the puller (3) so that
they are in line with the arms (2).
• Apply the puller, rotate hooks 90°
(angled ends must locate under the
oil seal). Clamp the arms and pull
the oil seal out.
Important: Take special care not to
damage crankshaft stub.
• Clean sealing face on crankshaft
stub with standard commercial,
solvent-based degreasant con-
taining no chlorinated or halogen-
ated hydrocarbons - see 11.2.
• Pack cavity between sealing lip
and oil seal with grease –
see 11.2.
STIHL 020 T
• Push the oil seal (closed side
facing crankcase) over the
crankshaft and use press sleeve
(1) to press it home.
• Install the oil pump - see 9.3.1.
Ignition side:
• Remove the flywheel - see 5.5.
• Apply the puller as at the clutch
side and pull out the oil seal.
Important: Take special care not to
damage crankshaft stub.
• Clean sealing face on crankshaft
stub with standard commercial,
solvent-based degreasant contai-
ning no chlorinated or halogena-
ted hydrocarbons - see 11.2.
• Pack cavity between sealing lip
and oil seal with grease –
see 11.2.
• Slip the installing sleeve (1) over
the crankshaft. The slot must
locate on the Woodruff key (2).
• Push the oil seal over the installing
sleeve (closed side of seal facing
crankcase) and use press sleeve (1)
to press it home.
• Remove the installing sleeve.
• Fit the flywheel - see 5.5.
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