Specifications
| Fuel | Diesel |
|---|---|
| Standby power | 180 kW |
| Prime power | 130 kW |
| Oil capacity | 14.0 L |
| Alternator | UR (4-pole) |
| Voltage options | 60 V, 50 V |
| Phase | 3-phase |
| Power factor | 0.8 |
| Battery group | 2 x 12V, 225 Ah [10 kC] |
| Battery voltage | 24 V |
| Battery quantity | 2 |
| Dimensions (L×W×H) | 1760×1120×2930 mm |
| Dry weight | 2495 kg |
| Fuel tank | 10.5 L |
Engine
| Oil capacity | 14.0 L |
|---|---|
| Coolant capacity | 53.0 L |
| Displacement | 14.0 L |
| Aspiration | Solenoid Shift Isochronous |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan NT855-G| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | — | 500 hr | ||
| Fuel filter | Fuel Filters (Cummins engine) | — | 3000 hr | ||
| Oil filter | Oil Filter with Crankcase | — | 1000 hr | ||
| Battery | Battery | — | 1000 hr | ||
| Belt | Fan Belt and Radiator Fan | — | 500 hr | ||
| Coolant | Engine Coolant with Radiator | 53.0 L | — | 1000 hr | |
| Coolant filter | A shut off valve (see Figure 30) is installed in the inlet and outlet line to the coolant filter to be closed, for minimum coolant loss when the filter is removed. Refer to engine manufacturer's manual for coolant filter replacement information. | — | |||
| Oil | Engine Oil | 40.0 Gallons | — | 500 hr | |
| Spark plug | Spark Plug | — | 500 hr |
Common questions
How many kW is the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R is rated 180 kW standby.
Which engine powers the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R is powered by the Cummins/Onan NT855-G engine.
Is the Cummins/Onan DFE 15R diesel or gas?
The Cummins/Onan DFE 15R runs on Diesel.
What's the oil capacity on a Cummins/Onan DFE 15R?
The Cummins/Onan NT855-G engine in the Cummins/Onan DFE 15R has an oil capacity of 14.0 liters.
What alternator does the Cummins/Onan DFE 15R use?
The Cummins/Onan DFE 15R uses a UR alternator. It has 4 poles.
Troubleshooting
6Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Engine stops cranking and fault lamp lights, after cranking approximately 75 seconds. | See engine service manual for troubleshooting fuel system. After correcting problem, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset position, then back to the required running position. |
| Fault lamp lights immediately after engine starts. | Check for: Overspeed condition as engine starts. |
| Fault lamp lights and engine shuts down after running for a period. | Check the following: a. Oil level. Engine will shut down if sensor is closed. b. Check engine manual for troubleshooting oil system. c. High engine temperature. Check coolant level; check water flow (city water cooled systems); check radiator for free air flow, and fan belts for tightness. See engine manual for troubleshooting cooling system. d. Check for faulty oil pressure sensor or faulty high engine temperature sensor. |
| Fault lamp lights, no fault exists. | To check a no-fault condition, disconnect leads from TB11 terminals 29, 30 and 31. If fault lamp lights with leads disconnected, replace engine monitor board. Reconnect leads. |
| Overcrank fault lamp lights and engine stops cranking after approximately 75 seconds. | See engine service manual for troubleshooting fuel system. After correcting fault, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset position, depressing Reset button, then to the required running position. |
| Engine runs, shuts down, cranks for 75 seconds, cranking cycle stops, overcrank light ON. | Check fuel supply. a. Oil level. Replenish if necessary. b. Sensor. Faulty sensor will shut down engine. c. Refer to engine service manual for troubleshooting guide for oil system. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DFE 15R troubleshooting guide (13 entries) →
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| TB11-29 | Engine Monitor Board | 1 | Service part / kit | Amazon eBay |
| TB11-30 | Engine Monitor Board | 1 | Service part / kit | Amazon eBay |
| TB11-31 | Engine Monitor Board | 1 | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 0.83 | 0.22 | |
| Standby | 0.95 | 0.26 |
Available documents
Service manual — 956-0120 Onan DFE (spec L) Diesel Genset Operators manual (05-1981) (Cummins/Onan)