Generac — PMG kit installation assembly - GTA 315

Installation · PMG (auxiliary exciter) kit

From a Generac service manual — check it applies to your exact model before use.

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Procedure

1. Place a new back cover model GPA and fasten it with the screws, applying the recommended torque.
2. Assemble the exciter rotor and the PMG rotor with the new bushing.
3. Assemble the exciter stator and fasten it with the screws, applying the recommended torque.
4. Assemble the diodes wheel and fasten it with the screws, applying the recommended torque.
5. Assemble the PMG stator support cover and fasten it with the screws, applying the recommended torque.
6. Fasten the PMG stator support (auxiliary exciter) in the alternator back cover and route cables AC1, AC2, AC3 to the terminal box.
7. Assemble PMG cover and alternator shutter and fasten them with the screws, applying the recommended torque.
8. Place the new voltage regulator apt for PMG in case of 3-phase connection and connect all the cables.
9. Check that no cables are leaned against any live corner, dragging or next to rotating parts.
10. Place the upper cover in the terminal box and fasten them with the screws, applying the recommended torque.

Source: Generac service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.

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