Mitsubishi S3L Service Manual page 117

ELECTRICAL SYSTEM
Good
Molding undercut
depth
Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
Segment
Bad
3. Commutator Inspection
1) Measure the commutator's runout using a dial
gauge. If the measurement exceeds the
specified limit, rectify the problem, making
sure that the outside diameter stays within
specification. If the surface is rough or has
stepped wear, rectify the problem with emery
paper (#300 – 500).
Commutator runout
2) Measure the commutator's outside diameter. If
the measurement is out of specification,
replace the armature.
Commutator
outside diameter
3) Measure the molding undercut depth between
segments. If the depth is smaller than the
limit, cut the molding to a depth of 0.4-0.6 mm
(0.016-0.024 in).
Commutator runout
29.2.2 Field Coil
1. Coil Open Circuit Test
Check whether continuity exists between the
terminal lead and each brush. If continuity does not
exists, the field coil has an open circuit and the
yoke assembly must be replaced
ENGLISH
STARTER
Unit: mm (in.)
Limit
0.1 (0.004)
Unit: mm (in.)
Standard
Limit
value
32.0 (1.26) 31.4 (1.24)
Unit: mm (in.)
Limit
0.1 (0.004)
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