Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 300 kW |
| Standby kVA | 375 |
| Oil capacity | 34.1 L |
| Alternator | Motorola 70D44039B04 |
| Voltage options | 120/208 V, 127/220 V, 139/240 V, 240/416 V, 254/440 V, 277/480 V |
| Phase | 3 |
| Rated current | 1042 A |
| Power factor | 0.8 |
| Battery group | 8D |
| Battery cranking | 810 CCA |
| Battery voltage | 24 V |
| Battery quantity | 2 |
| Coolant capacity | 52 L |
| Dimensions (L×W×H) | 1778×1650×2900 mm |
| Dry weight | 3655 kg |
Engine
| Oil capacity | 34.1 L |
|---|---|
| Coolant capacity | 118.5 L |
| Displacement | 13.96 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Detroit Diesel V12-71T| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 140-1326 | PartsGeek FridayParts $100.99 | |||
| Oil filter | Detroit Diesel Allison | — | find | ||
| Coolant | 118.5 liters | — | |||
| Oil | ASTM No. 2 Diesel | 34.1 liters | — |
Common questions
What is the power rating of the Cummins/Onan DHA?
The Cummins/Onan DHA is rated 300 kW standby (375.0 kVA).
What engine does the Cummins/Onan DHA use?
The Cummins/Onan DHA is powered by the Detroit Diesel V12-71T engine.
What fuel does the Cummins/Onan DHA use?
The Cummins/Onan DHA runs on Diesel.
What is the oil capacity of the Cummins/Onan DHA?
The Detroit Diesel V12-71T engine in the Cummins/Onan DHA has an oil capacity of 34.1 liters.
What alternator does the Cummins/Onan DHA use?
The Cummins/Onan DHA uses a Motorola 70D44039B04 alternator.
Troubleshooting
12Fault codes
| Code | Meaning | Remedy |
|---|---|---|
| *Low oil pressure | Low oil pressure shutdown. | Check— 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. |
| *High engine temperature | High engine temperature shutdown. | Check— a. Coolant level. Replenish if necessary. b. City water cooled sets. Check water flow, valves, etc. c. Check sensor; check thermostat. d. Radiator model, check fan belts, radiator for obstructions, etc. |
| Overspeed | Overspeed shutdown. | Check governor and throttle linkages for freedom of movement. Check overspeed switch. |
| *Low oil pressure | Low oil pressure light ON. | Disconnect wire at TB11-30. Light No shutdown. ON after relay reset. Replace engine monitor board. |
| *High engine temperature | High engine temperature light ON. | Disconnect wire at TB11-31. Light No shutdown. ON after relay reset. Replace engine monitor board. |
Symptoms & remedies
| Symptom | Cause | 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, then back to the required running position. | |
| Fault lamp lights immediately after engine starts. | 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. | |
| Engine runs, shuts down and cranks for 75-seconds. Cranking cycle stops; fault lamp lights. | Check fuel supply. | |
| 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. | |
| Overspeed light ON, no shutdown. | Disconnect wire at TB11-29. Light ON after reset; replace engine monitor board. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
17| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 140-1326 | Cleaner, Air | 2 | Air filter | PartsGeek FridayParts $100.99 |
| 140-1327 | Cap, Weather | 2 | Air filter | PartsGeek |
| 155-1364 | Adapter, Exhaust | 2 | Hose | PartsGeek |
| 191-0649 | Pulley, Alternator | 1 | Alternator | PartsGeek |
| 191-0725 | Guard, Alternator Belt | 1 | Belt | PartsGeek |
| 191-0733 | Regulator, Alternator | 1 | Sensor | PartsGeek |
| 191-0871 | Alternator, Charge - Includes Regulator and Fan (Motorola #70D44039B04) | 1 | Sensor | PartsGeek |
| 309-0178 | Sender, Water Temperature | 1 | Sensor | PartsGeek |
| 309-0272 | Sender, Oil Pressure | 1 | Sensor | PartsGeek |
| 416-0445 | Cable, Battery - Negative | 1 | Hose | PartsGeek |
| 416-0636 | Cable, Battery - Positive | 1 | Hose | PartsGeek |
| 503-0197 | Clamp, Hose - Oil Drain | 1 | Hose | PartsGeek |
| 504-0011 | Valve, Shutoff - Oil Drain | 1 | Pump | PartsGeek |
| 505-0021 | Bushing, Reducer - Oil Drain | 1 | Seal | PartsGeek |
| 505-0100 | Nipple, Close - Oil Drain | 1 | Hose | PartsGeek |
| 511-0092 | Belt, Alternator | 1 | Belt | PartsGeek |
| 332-1382 | Bracket, Terminal Mounting | 1 | Service part / kit | PartsGeek |
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 |
|---|---|---|---|
| Standby | 100% | 94.0 | 24.8 |
Available documents
Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 945-0301 Onan DHA Operator's and Parts Manual (1-1975) (Cummins/Onan)