Cummins/Onan JWC4-10S-3 — Starting the Power Unit Electrically
Operation
For the Cummins/Onan JWC4-10S-3, from the Cummins/Onan service manual.
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Before you start
- If START button is released before oil pressure builds, the engine will stop.
Procedure
- Make sure CIRCUIT BREAKER is in OFF position.
- Make sure MANUAL START-REMOTE START switch is in REMOTE START position.
- Press START button firmly until engine starts and oil pressure builds, not more than 10 or 15 seconds.
- If it fails to start, wait 10 seconds and repeat.
- After engine starts, check oil pressure gauge and control panel gauges.
- Throw CIRCUIT BREAKER to ON to connect load.
Specs & values
- Oil pressure about 22 pounds
- Water temperature about 175 F
- Battery charge rate 2 to 10 amperes
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.