Starter - Kubota WSM OC60-E2 Workshop Manual

OC60-E2, OC95-E2, WSM

(5) Starter

Clearance between Rotor and Cover
1. Put a strip of press gauge onto the rotor face with grease.
2. Install the cover and tighten the screws.
3. Remove the cover carefully, and measure the depression of
press gauge with a sheet of gauge.
4. If the clearance exceeds the allowable limit, replace the oil
pump rotor assembly.
Factory spec.
clearance between rotor
and cover
Allowable limit
Commutator and Mica
1. Check the contact face of the commutator for wear, and grind
the commutator with emery paper if it is slightly worn.
2. Measure the commutator O.D. with an outside micrometer at
several points.
3. If the minimum O.D. is less than the allowable limit, replace the
armature.
4. If the difference of the O.D.'s exceeds the allowable limit,
correct the commutator on a lathe to the factory specification.
5. Measure the mica undercut.
6. If the undercut is less than the allowable limit, correct it with a
saw blade and chamfer the segment edges.
Factory
spec.
Commutator O.D.
Allowable
limit
Factory spec.
Difference of O.D.'s
Allowable limit
Factory
spec.
Mica undercut
Allowable
limit
(1) Segment
(2) Undercut
(3) Mica
S-50
0.02 to 0.06 mm
0.0008 to 0.0024 in.
0.25 mm
0.0098 in.
0000009302E
28.0 mm
OC60-E2
1.10 in.
30.0 mm
OC95-E2
1.18 in.
28.0 mm
OC60-E2
1.10 in.
29.0 mm
OC95-E2
1.14 in.
Less than 0.05 mm
0.0020 in.
0.40 mm
0.0157 in.
0.45 to 0.75 mm
OC60-E2
0.018 to 0.030 in.
0.50 to 0.80 mm
OC95-E2
0.020 to 0.031 in.
OC60-E2
0.20 mm
0.0079 in.
OC95-E2
(a) Correct
(b) incorrect
0000009303E
ENGINE