Opel Frontera UBS. Manual - part 1157

6D3–20 STARTING AND CHARGING SYSTEM

Disassembled View

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Legend

(1) Pulley Nut
(2) Pulley
(3) Front Cover Assembly
(4) Rotor Assembly
(5) Rear End Cover

(6) Rectifier
(7) Terminal Insulator and Nut
(8) Regulator Assembly
(9) Brush Holder Assembly

(10) Rear Cover

6D3–21

STARTING AND CHARGING SYSTEM

Disassembly

1. Terminal insulator and nut(2).
2. Remove three nuts(1) on the rear cover and a nut on

terminal B and insulator, then remove the rear
cover(3).

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3. Remove two screws that fix the brush holder(5) and

rectifier, then remove the brush holder assembly(4).

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4. Remove three screws on the IC regulator, then the IC

regulator assembly(6).

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5. Remove four screws that fix rectifier(7) and stator

lead wires.

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6D3–22 STARTING AND CHARGING SYSTEM

6. Secure the pulley directly in the vise between two

copper plates, and remove the nut and pulley.

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7. Remove four nuts(8) that secure the front cover

assembly and rear end cover, and an insulator(9).

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8. Use the puller to remove the rear end cover.
9. Rotor assembly

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10. Pull the rotor assembly(10) off the front cover

assembly(12) using a bench press(11).

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6D3–23

STARTING AND CHARGING SYSTEM

Inspection and Repair

Repair or replace necessary parts if extreme wear or
damage is found during inspection.

Rotor Assembly

1. Check the rotor slip ring surfaces for contamination

and roughness. If rough, polish with #500—600
sandpaper.

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2. Measure the slip ring diameter, and replace if it

exceeds the limit.

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3. Check resistance between slip rings, and replace if

there is no continuity.

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4. Check for continuity between slip ring and rotor core.

In case of continuity, replace the rotor assembly.

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