Armature Inspection And Test - Acura 3.5 RL Manual

Starting System

Armature Inspection and Test

1. Inspect the armature for wear or damage due to con-
tact with the permanent magnet. If there is wear or
damage, replace the armature.
Inspect for damage
2. Check commutator surface and diameter.
If the surface is dirty or burnt, resurface with emery
cloth or a lathe within the following specifications,
or recondition with #500 or #600 sandpaper.
SANDPAPER
COMMUTATOR
If commutator diameter is below the service limit,
replace the armature.
Commutator Diameter
Standard (NEW)
31.9-32.1 mm
(1.256 -1.264 in)
VERNIER CALIPER
3. Measure the commutator runout.
If the commutator runout is within the service
limit, check the commutator for carbon dust or
brass chips between the segments.
If the commutator runout is not within the ser-
vice limit, replace the armature.
Commutator Runout
Standard (NEW)
0-0.05 mm
(0-0.002 in)
DIAL INDICATOR
COMMUTATOR
Service Limit
31.5 mm
(1.240 in)
COMMUTATOR
Service Limit
0.1 mm
(0.004 in)