Cummins/Onan — Battery Cables and Connections - Remove and Install
Maintenance
From a Cummins/Onan service manual — check it applies to your exact model before use.
Applies to: Cummins/Onan HGLAA
Before you start
- Battery Exposure: Battery may explode. Battery acid may cause burns or injury. Avoid contact. Wear appropriate personal protective equipment.
Parts for this job
Part numbers from the service-parts list for Cummins/Onan HGLAA. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Make sure the battery compartment is ventilated.
- Remove the negative cable first, then the positive cable.
- Remove OEM components as necessary.
- Clean cable connections, battery terminals, and battery tops until clear of debris.
- Check battery cables, connections, terminals, connectors, and cables; replace if broken, cracked, deformed, or loose.
- Install the positive cable first, then the negative cable.
- Tighten the battery connections; refer to OEM manual for tightening steps.
- Prevent corrosion by applying sealant to the terminals.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Tighten battery connections 11 N·m (97 in-lb)
Full service-parts list: Cummins/Onan HGLAA →
Source: Cummins/Onan 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.