Generac — Governor Adjustment
Adjustments
From a Generac service manual covering: QUIETPACT 55, QuietPact 65, QuietPact 75. Check it applies to your exact model before use.
Applies to: Generac QUIETPACT 55, Generac QuietPact 65, Generac QuietPact 75, Generac GTV-760 engine
Procedure
- Loosen governor clamp bolt.
- Push spring end of governor lever clockwise to wide open throttle position.
- Hold governor lever at wide open throttle and rotate governor shaft fully clockwise with pliers.
- Tighten governor clamp bolt to 70 inch-pounds (8 N-m) while holding shaft and lever.
- Start engine, let stabilize and warm up at no-load.
- Turn adjuster nut to obtain 62 Hertz frequency reading.
- Reposition governor spring in lever slot if droop is excessive or for greater stability.
- Recheck frequency and readjust adjuster nut to obtain 62 Hertz at no-load.
- Check AC voltage reading; adjust voltage regulator if incorrect.
Tools required
- Pliers Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Governor clamp bolt: 70 inch-pounds (8 N-m)
- No-load frequency: 62 Hz
Full service-parts list: Generac QUIETPACT 55 →, Generac QuietPact 65 →, Generac QuietPact 75 →
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.