Specifications
| Fuel | GaslGaso |
|---|---|
| Standby power | 30 kW |
| Standby kVA | 37 |
| Oil capacity | 6.6 L |
| Voltage options | 12 V |
| Phase | 3 |
| Battery group | 60 |
| Battery voltage | 12 V |
| Coolant capacity | 19 L |
Maintenance & consumables
for the Ford CSG-6491| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Periodic inspections to detect possible problems and replacement of worn or deteriorated parts. | — | |||
| Fuel filter | Replace fuel filter element over the spout in the fuel pump valve housing cover. Use proper type element. | — | |||
| Oil filter | Clean and check oil filter at every oil change. | — | |||
| Oil | Change oil and filter at intervals recommended in the Periodic Maintenance Schedule. | — | |||
| Spark plug | Inspect for cracked or damaged insulators, worn electrodes, damaged gaskets, or excessive carbon deposits. Replace if noted. | — |
Common questions
What is the power rating of the Cummins/Onan 30 kWEK?
The Cummins/Onan 30 kWEK is rated 30 kW standby (37.5 kVA).
What engine is in the Cummins/Onan 30 kWEK?
The Cummins/Onan 30 kWEK is powered by the Ford CSG-6491 engine.
What fuel does the Cummins/Onan 30 kWEK use?
The Cummins/Onan 30 kWEK runs on GaslGaso.
What is the oil capacity of the Cummins/Onan 30 kWEK?
The Ford CSG-6491 engine in the Cummins/Onan 30 kWEK has an oil capacity of 7.0 liters.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine runs and then shuts down | Indicates engine has exceeded normal operating speed. Contact an Onan dealer or distributor for service. | |
| SWITCH OFF lamp flashes | Indicates Run/Stop/Remote switch is in the STOP position which will prevent automatic starting if an automatic transfer switch is used. Move the Run/Stop/Remote switch to the REMOTE position for automatic starting. | |
| LO FUEL lamp lights: Engine continues to run | Indicates gasoline fuel supply is running low. | Check fuel supply and replenish if necessary. If set has a combination Gas/Gasoline fuel system, place fuel selector switch in the GAS position to change over to natural gas operation. |
| LO FUEL lamp lights: Engine shuts down | Indicates engine has run out of fuel. | Check fuel level and replenish as required. |
| PRE HI ENGINE TEMP lamp lights. Engine continues to operate | Indicates engine has begun to overheat and engine temperature has risen to approximately 205°F (97°C). If engine can be stopped, follow the procedures in step 3. Use the following procedures if generator is powering critical loads and cannot be shut down: a. Check air inlets and outlets and remove any obstructions to airflow. b. Open doors or windows in generator area to increase ventilation. c. Reduce load if possible by turning off non-critical loads. | |
| HIGH ENG TEMP lamp lights | Indicates engine has overheated and engine temperature has risen above 215°F (102°C) or coolant level is low (sets with coolant level sensor). Allow engine to cool down completely before proceeding with the following checks: a. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d Reset control and restart after locating and correcting problem. Contact an Onan dealer or distributor if none of the above. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan 30 kWEK troubleshooting guide (16 entries) →