Mitsubishi S3Q2-T User Manual

ELECTRICAL SYSTEM
12-10
2.3.4 Measuring commutator radial runout
(1) Inspect the commutator surface. If the surface is rough,
polish it using a 400 to 600 grit sandpaper.
(2) Measure the commutator radial runout with a dial
gauge. If the measured value exceeds the limit, replace
the armature with a new one.
2.3.5 Measuring commutator outside diameter
Measure the commutator outside diameter.
If the measured value is less than the limit, replace the
armature with a new one.
Measuring commutator radial runout
2.3.6 Measuring commutator outside diameter
Measure the commutator outside diameter.
If the measured value is less than the limit, replace the
armature with a new one.
Measuring commutator outside diameter
2.3.7 Inspecting brush holder for insulation
Check that there is no continuity between each brush holder
and the brush holder base. If continuity is observed, replace
the whole brush holder assembly.
Check the brush holders for looseness.
Inspecting brush holder insulation
2.3.8 Measuring undercut depth
Measure the depth of undercutting between the commutator
segments.
If the measured value is less than the limit, repair or replace
with a new part.
Measuring commutator mica depth
Commutator
Item Standard Limit
Commutator outside diameter
32 mm
[1.26 in.]
31.4 mm
[1.236 in.]
Outside
diameter
Brush holder
Item Standard Limit
Undercut depth
0.4 to 0.6
[0.0157 to 0.0236 in.]
0.2 mm
[0.008 in.]
Segment
Undercut
Mica

Mitsubishi S3Q2-T Specifications

General

Brand	Mitsubishi
Model	S3Q2-T
Category	Engine
Language	English