4-157
4
TRAVEL MOTOR
DISASSEMBLY AND ASSEMBLY
Inspection and adjustment
Use limit for parts
Part Area checked Judgment criteria Treatment
Floating seal Sliding surface Abnormal
scratches, wear or scorch-
ing on the surface
Replace
Angular bearing Rolling surface Abnormal
scratches, wear or flaking
on the ball or race.
Replace
Planetary gear Gear tooth surface Abnormal
scratches, wear or flaking
of the tooth surface (if pitting covers
10% or more of the area engaging
with the tooth surface).
Replace
Inner race Rolling surface Abnormal
scratches, wear or flaking
on the rolling surface
Replace
Needle Needle surface Abnormal
scratches, wear or flaking
on the surface
Replace
Thrust washer Sliding surface Abnormal
scratches, wear or scorch-
ing on the surface
Replace
Housing, sun gear,
drive gear
Gear tooth surface Abnormal
scratches, wear or flaking
of the tooth surfaces (if pitting cov-
ers
10% or more of the area engag-
ing with the tooth surface).
Replace
Thrust plate Sliding surfaces Abnormal
scratches, wear or scorch-
ing on the surface
Replace
O-ring –– –– Replace
Shaft Oil seal surface Abnormal
scratches, wear or scorch-
ing on the surface
Replace
Ball bearing Sliding surfaces Abnormal
scratches or flaking on the
ball or race.
Replace
Oil seal –– –– Replace
Swash plate Sliding
surface with the piston as-
sembly
Abnormal
scratches (0.02 mm or
more), wear or scorching on the sur-
faces
Replace
Cylinder block Cylinder
block-to-piston assembly
clearance
0.04 mm or mor
e Repair by lapping
(#1000) or replace
both cylinder block
and piston assembly.
Sliding surface with the valve plate Abnormal
scratches (0.02 mm or
more), wear or scorching on the sur-
faces
Piston assembly Piston
assembly-to-cylinder block
clearance
0.04 mm or mor
e
Sliding surface with the swash plate Abnormal scratches (0.02 mm or
more), wear or scorching on the sur-
faces
Play of piston shoe 0.04 mm or mor
e Replace
Valve plate Sliding surface with the cylinder
block
Abnormal
scratches (0.02 mm or
more), wear or scorching on the sur-
faces
Repair
by lapping
(#1000) or replace
both cylinder block
and piston assembly.
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