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Service Manual Mitsubishi SL-Series diesel engines
Version 08/2004
STARTER
ENGLISH
ELECTRICAL SYSTEM
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).
Unit: mm (in.)
2) Measure the commutator’s outside diameter. If
the measurement is out of specification,
replace the armature.
Unit: mm (in.)
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).
Unit: mm (in.)
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
Limit
Commutator runout 0.1 (0.004)
Standard
value
Limit
Commutator
outside diameter
32.0 (1.26) 31.4 (1.24)
Segment
BadGood
Molding undercut
depth
Limit
Commutator runout 0.1 (0.004)
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