Generac — Exciter disassembly - GTA 315 and AG10 250 / 280 / 315
Repair & overhaul · exciter stator and exciter rotor
From a Generac service manual — check it applies to your exact model before use.
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Procedure
- Remove the back fan cover of the generator.
- Disconnect the F+ and F- cables of the voltage regulator, located in the alternator terminal box.
- Remove the 4 fixing screws of the exciter stator.
- Displace the exciter stator using a rubber hammer, taking due care not to beat the coils.
- Remove the power supply cables of the main rotor.
- Remove both fixing screws of the exciter rotor.
- Place the screws removed in the holes indicated.
- Fasten screws gradually to displace the rotor from the shaft.
Tools required
- rubber hammer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.