Cummins/Onan — Drive Belt - Replacement
Maintenance · Cooling system
From a Cummins/Onan owner's manual covering: GTA8.3, GTA8.3 CD1, GTAR 3. Check it applies to your exact model before use.
Applies to: Cummins/Onan GTA8.3 engine
Before you start
- Applying excessive force in the opposite direction of wind-up or after the tensioner has been wound up to the positive stop can cause the tensioner arm to break.
Procedure
- Lift the tensioner arm and pulley to remove and install the belt.
- The belt tensioner winds in the direction that the spring tang is bent over the tensioner body.
- To loosen the tension on the belt, rotate the tensioner to wind the spring tighter.
Source: Cummins/Onan owner's 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.