Opel Frontera UE. Manual - part 778

6D3–10

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

Generator Power

1. Adjust load resistor, if the required load currents are 

not attained.

2. The shape of the voltage curves on oscilloscope 

curve should be regular.

3. Test value: 5 to 7A.
4. If the required minimum current intensity is not 

attained, or if the oscilloscope picture shows 
variations, the alternator should be overhauled.

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Regulated Voltage Circuit Diagram

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Legend

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Installation

1. Install generator assembly and bring generator 

assembly to the position to be installed.

2. Install generator bracket (1), (2) and tighten to the 

specified torque.

Torque:

Long bolt: 35 N·m (3.6 kg·m/26 lb ft)

Short bolt: 20 N·m (2.0 kg·m/15 lb ft)

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3. Connect wiring harness connector.

4. Move drive belt tensioner to loose side using 

wrench, then install drive belt to normal position.

5. Reconnect battery ground cable.

Disassembly

1. Belt pulley nut.

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(1) Battery
(2) Ignition Lock
(3) Charge Telltale
(4) Resistor, for attainment of load current with the 

battery set in series

(5) Voltmeter
(6) Ammeter
(7) Generator

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

6D3–11

2. Spring ring, washer, belt pulley halves, spacing ring, 

fan pinion, pulley spring.

3. Voltage regulator with brush holder.

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4. Drive bearing with clawpole armature.

5. Mark housing halves.

6. 4 fastening bolts.

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7. Clawpole armature from drive bearing.

8. Lay suitable pipe piece (1) underneath.

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9. Bearing cover of drive bearing.

10. Ball bearing from drive bearing.

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6D3–12

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

11. Ball bearing from armature shaft.

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12. Nut from connecting pins “B+" and “D+".

13. Washers and insulating material.

14. Diode plate.

15. Remove together with stator winding from slip ring 

bearing.

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16. Spray sleeve (if present).

17. Carefully bend off diode plate.

18. Unsolder stator winding from diode plate.

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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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STARTING AND CHARGING SYSTEM (X22SE 2.2L)

6D3–13

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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Stator Coil

1. Measure resistance between respective phases.

2. Measure insulation resistance between stator coil 

and core with a mega–ohmmeter.
If less than standard, replace the coil.

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