Generac — PMG kit installation assembly - GTA 200 / 250
Installation · PMG (auxiliary exciter) kit
From a Generac service manual — check it applies to your exact model before use.
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Procedure
- Place carefully the current exciter stator in the new back cover and fasten it with the 4 screws.
- Fasten the new cover to the frame, checking that the O-ring did not get out of its housing.
- Place the PMG rotor (auxiliary exciter) in the shaft back tip fitting, using the screw with lock washer and chemical lock.
- Fasten the PMG stator support (auxiliary exciter) in the alternator back cover and route cables AC1, AC2, AC3.
- Place the new back inspection cover with the overture to the PMG in the back cover and fasten it with the 6 screws.
- Place the new voltage regulator apt for PMG and connect all the cables, according to the electric diagram.
- Check that no cables are leaning against any live corner, dragging or next to the rotating parts.
- Place the upper cover in the terminal box and fasten with the 4 screws.
Specs & values
- Chemical lock recommendation WEG "Loctite 271 anaerobic adhesive"
- When PMG is single-phase connection cables are E1 and 4
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.