Generac — Adjusting Drive Belt Tension
Adjustments
From a Generac service manual covering: NP45G, NP52G, NP55G, NP65G, NP66G, NP72G. Check it applies to your exact model before use.
Applies to: Generac NP66G, Generac V-Twin engine
Procedure
- Adjust the spring on four stator can bolts to a length of 13mm (1/2 inch).
- Adjust two sets of springs on the side of the generator to a length of 16mm (5/8 inch).
- This will provide proper belt tension.
Tools required
- ruler Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- 13mm
- 16mm
Full service-parts list: Generac NP66G →
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.