Cummins/Onan G1250s / M-1902s — Starting the Generator Set
Operation
For the Cummins/Onan G1250s / M-1902s, from the Cummins/Onan service manual.
Applies to: Cummins/Onan HDKA, Kubota V1305-B engine
Before you start
- Shut down the generator set immediately if you discover an exhaust leak.
Procedure
- Hold the Start/Stop/Preheat switch in the Preheat position for 15 to 30 seconds.
- Hold the switch in the Start position; the engine should start within a few seconds.
- Monitor oil pressure, coolant temperature, and battery charge voltage.
- Check the exhaust system for leaks, visually and audibly.
- Check the generator set for fuel, oil or coolant leaks.
- Connect an AC voltmeter and frequency meter across two line terminals and apply load.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Preheat 15 to 30 seconds
Full service-parts list: Cummins/Onan HDKA →, Kubota V1305-B engine →
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.