Opel Frontera UE. Manual - part 297

6D3–20 STARTING AND CHARGING SYSTEM

Installation

1. Install generator assembly to the position.
2. Install generator assembly and tighten the fixing bolts

to the specified torque.

Torque:

M10 bolt: 41 N·m (30 Ib ft)

M8 bolt: 21 N·m (15 Ib ft)

3. Connect wiring harness connector and direct terminal

“B”.

4. Move drive belt tensioner to loose side using wrench,

then install drive belt to normal position.

5. Reconnect battery ground cable.

Disassembled View

066RW022

Legend

(1) Pulley Nut
(2) Pulley
(3) Front Cover Assembly
(4) Rotor Assembly
(5) Stator Assembly
(6) Through Bolt

(7) Nut
(8) Terminal Insulator
(9) Rear Cover Assembly

(10) Rectifier

(11) Brush Holder Assembly

(12) Regulator Assembly

6D3–21

STARTING AND CHARGING SYSTEM

Disassembly

1. Remove the through bolt.

Insert the tip of a pry bar into the gaps between the
front cover and the stator core.
Pry apart and separate the front cover, rotor, the rear
cover and stator.

NOTE: Take care not to scratch or otherwise damage the
stator coil with pry bar.

F06RT021

2. Clamp the rotor in a vise and then remove the nut and

pulley.

3. Remove the rotor assembly from front cover.

F06RT022

4. Remove screws with bearing retainer from front cover

and remove bearing.

F06RT023

5. Remove the mounting nuts holding the “B” terminal,

the diode, and the brush holder.

6. Separate the rear cover from the stator.

F06RT024

6D3–22 STARTING AND CHARGING SYSTEM

7. Remove bolts which secure stator terminal to rectifier

terminal, and remove stator.

066RS030

8. Remove Bolts which secure regulator, rectifier and

brush-holder, and separate these parts.

NOTE: Do not apply a shock or load to regulator, rectifier
and brush holder.

066RW025

Inspection and Repair

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

Rotor Assembly

1. Check the face of the slip rings for contamination and

roughness. If found to be scored, dress with a fine
sandpaper (#500 –600).  If found to be contaminated,
clean with a cloth saturated with alcohol.

2. Measure the outside diameter of the slip rings.

Standard: 27mm (1.06in)
Limit: 26mm (1.02in)

066RS032

3. Check resistance between slip rings, and replace if

there is no continuity.

Standard: 3.75

W

 or less

066RS033

6D3–23

STARTING AND CHARGING SYSTEM

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

In case of continuity, replace the rotor assembly.

066RS017

Stator Coil

1. Check for continuity across the stator coils.  If no

continuity exists, replace the coils.
Resistance value at 20

°

C.

Standard: Approx. 0.07

W

066RS034

2. Check for continuity across one of the stator coils and

stator core.  If a continuity exists, replace the coil.

Standard: More than 1M

W

066RS035

Brush

Measure the brush length.
If more than limit, replace the brush.

Standard: 18.0mm (0.709in)
Limit: 5.5mm (0.217in)

066RW024

Rectifier Assembly

1. Measure the resistance between each diode terminal

and aluminum diode fin in forward and reverse
directions with the connection of the tester leads
switched.  The diodes are normal if resistance is
nearly zero ohms in one direction and is infinitely high
in the other direction.

2. If a diode has no resistance or equal resistance in

both directions, it is defective and should be replaced
together with the holder.