Name: Isuzu 4JH1
Brand: Isuzu
Rating: 4 (1 reviews)

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6D – 12 ENGINE ELECTRICAL

INSPECTION AND REPAIR

Make the necessary adjustments, repairs, and part replacement if excessive wear or damage is discovered during

inspection.

ROTOR ASSEMBLY

1. Inspect the slip ring faces for dirt and pitting.

Wipe away any dirt with a clean cloth soaked in

alcohol.

2. Measure the slip ring diameter.

Slip Ring Diameter mm (in)

Standard Limit

31.6 (1.245) 30.6 (1.205)

RTW06DSH000101

If the slip ring diameter is less than the specified limit, the

slip rings must be replaced.

3. Measure the rotor coil resistance.

Rotor Coil Resistance at 20°C (68°F) ohms

Standard 3.8

RTW46DSH001001

RTW46DSH001101

4. Check for continuity between the slip rings and the

rotor core or shaft.

If there is continuity, the entire rotor assmbly must be

replaced.

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Isuzu 4JH1 Specifications

General