Cummins/Onan — Engine Shut-Down Procedure
Operation
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
- Always know the location of the manual fuel shut-off valve in the event of an emergency or while servicing the engine.
Procedure
- Let the engine idle a few minutes before shutting it down; idle 3 to 5 minutes to allow lubricating oil and water to carry heat away.
- Turn off the fuel-gas with either the automatic or manual shut-off valve and allow the engine to come to a complete stop.
- Turn ignition switch to OFF position.
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.