Cummins/Onan GTA14 / GTA14 qi 20 NA — Drive Belts - Replacement
Maintenance
For the Cummins/Onan GTA14 / GTA14 qi 20 NA, from the Cummins/Onan owner's manual.
Applies to: Cummins/Onan GTA14 qi 20 NA, Cummins/Onan GTA14 engine
Before you start
- Replace belts as a complete set when a drive uses two or more belts
Parts for this job
Part numbers from the service-parts list for Cummins/Onan GTA14 qi 20 NA. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Loosen adjusting mechanism and move pulley centers close together.
- Install belts without excessive force; do not roll or pry belt on.
- Select correct gauge and tension per Belt Tension Chart.
- Check pulley alignment and belt riding depth.
Tools required
- Belt tension gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Pulley misalignment must not exceed 6 mm per meter [1/16 in. per 12 inches]
- Belts must not protrude over 3 mm [3/32 in.] above groove
- Belt riding depth must not vary over 2 mm between belts
Full service-parts list: Cummins/Onan GTA14 qi 20 NA →
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.