Precautions For Disassembly And Reassembly; Oil Seals; O-Rings - Mitsubishi S4Q User Manual

PRECAUTIONS FOR DISASSEMBLY AND
REASSEMBLY
Figure 2 Oil seal installer
Figure 3 Oil seal guide
Figure 4 O-ring guide
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GENERAL INSTRUCTIONS
GENERAL INSTRUCTIONS
6 PRECAUTIONS FOR
DISASSEMBLY AND
REASSEMBLY
6.1

Oil Seals

When installing oil seals, carefully observe the
following points.
6.1.1 Driving oil seals into housings
1. Check the seal lip for damage, and be sure to
position correctly in the housing.
2. Apply a smear of grease to the surface of the oil
seal (to be fitted into the housing bore).
3. Using an oil seal driver shown to guide the seal lip
and drive the outer diameter squarely. To avoid
damage to the oil seal and leaking, never hammer
on it directly.
6.1.2 Driving oil seals onto shafts
1. Apply a smear of grease to the oil seal lip.
2. Use an oil seal guide of the type shown when
driving the oil seal over the stepped portion,
splines, threads, or key way to prevent damage to
the oil seal lip.
6.2

O-rings

Use an O-ring guide to install an O-ring over stepped
parts, splines, threads, or key way to prevent damage
to the ring. Apply a smear of grease to the O-ring
before installation.
ENGLISH
Service Manual Mitsubishi SQ-Series diesel engines
Version 08/2004