Cummins/Onan — Removing the Genset - Disconnections at the Genset
Repair & overhaul
From a Cummins/Onan service manual — check it applies to your exact model before use.
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Before you start
- Sparks and high current could cause fire if loose cable ends touch.
- Gasoline and LPG are flammable and explosive.
- Gensets are heavy and can cause severe personal injury if dropped.
Procedure
- Disconnect the negative (-) battery cable from the battery first.
- Disconnect the battery cables from the genset.
- Disconnect the remote control wiring harness connector at the genset.
- Disconnect the generator output wiring and conduit from the power distribution panel; tag all wires.
- Disconnect the exhaust tailpipe from the outlet of the muffler.
- Disconnect the fuel supply line from the genset and securely plug the end of the line.
Tools required
- Fork lift or other suitable lifting means Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
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.