This article mainly introduces Removal of the Isuzu LG4JJ-WE-1101-Engine 4JJ1 Euro 4 N Series Starter Motor
9.Remove the brush holder from yoke and armature.
10.Remove the armature from yoke.
11.Remove the bearing retainer.
12.Remove the pinion assembly.
13.Remove the dust cover.
14.Remove the shift lever.
15.Remove the gearcase.
·Remove the bearing retainer.
·Remove the pinion from the gear case.
16.Remove the stopper cdlip.
17.Disassemble the pinion assembly.
Inspection and Repair Make the necessary adjustments, repairs, and part replacement if excessive wear or damage is discovered during inspection.
Armature
1. Measure the commutator run-out.
Replace the commutator if the measured run-out exceeds the specified limit.
2.Check the commutator mica segments for excessive wear.
3.Measure the mica segment depth.
ISUZU US-IDSS Diagnostic Service Truck Diagnostic System 06.2021
If the mica segment depth is less than the standard but more than the limit, the mmutator may be reground.
Legend
1. Insulator
2.0.5 to 0.8mm(0.020 to 0.031 in)
3. Commutator segments
4. Correct
5. Incorrect
If the measured outside diameter is less than the specified limit, the commutator must be replaced.
5. Use a circuit tester to check the armature for grounding.
a. Hold one probe of the circuit tester against the commutator segment.
b. Hold the other circuit tester probe against the armature core.
If the circuit tester indicates continuity, the armature is grounded.
The armature must be replaced.
ISUZU IDSS Diagnostic Adapter System Support G-IDSS/US-IDSS/E-IDSS
6.Use the circuit tester to check the armature for continuity.
a.Hold the circuit tester probes against two commutator segments.
b. Repair Step 1 at different segments of the armature core.
There should be continuity between all segments of the commutator.
If there is not, the armature must be replaced.
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