Generac 9344 — Voltage Regulator Adjustment (Units with 15 Inch Stator)
Adjustments · AC voltage regulator Part No. 67680
For the Generac 9344, from the Generac service manual.
Applies to: Generac 9344
Before you start
- Do not force the regulator's adjustment potentiometer past its stops.
Procedure
- Gain access to the voltage regulator in the generator control panel.
- If a new regulator is installed, set switch SW1 to Position 2.
- With unit shut down, turn Voltage Adjust pot fully counterclockwise; set Gain and Stability to mid-position.
- Do not adjust the Underfrequency Adjust pot.
- Start the engine and let it stabilize and warm up at no-load; verify frequency 60.5-63.5 Hertz.
- Turn the Voltage Adjust pot to obtain 242-254 volts line-to-line or 121-127 volts line-to-neutral.
- If the Regulator lamp flashes, turn the Stability pot until flashing stops.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Line-to-neutral voltage 121-127 volts AC
- Line-to-line voltage 242-254 volts AC
Full service-parts list: Generac 9344 →
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.