Specifications
| Fuel | diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 50 kW |
| Standby kVA | 62 |
| Controller | remote electric start |
| Oil capacity | 13.4 L |
| Alternator | Cummins/Onan UR 15R 60 Hz / UR 515R 50 Hz |
| Voltage options | 120/240 V, 120/208 V, 240/416 V, 277/480 V |
| Power factor | 0.8 |
| Battery group | 2H |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 18.9 L |
| Dimensions (L×W×H) | 2024×838×1337 mm |
| Dry weight | 988 kg |
Engine
| Oil capacity | 13.4 L |
|---|---|
| Coolant capacity | 18.9 L |
| Displacement | 5.39 L |
| Aspiration | naturally aspirated |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the John Deere 6329D| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 500 hr | find | ||
| Fuel filter | — | 250 hr | find | ||
| Oil filter | — | 250 hr | find | ||
| Coolant | soft water with rust and scale inhibitor | 19.0 gallons | — | ||
| Oil | heavy duty diesel oil | 15.0 quarts | — | 250 hr |
Common questions
What is the power rating of the Cummins/Onan 50.0 DDB T5R?
The Cummins/Onan 50.0 DDB T5R is rated 50 kW standby (62.5 kVA).
What engine does the Cummins/Onan 50.0 DDB T5R use?
The Cummins/Onan 50.0 DDB T5R is powered by the John Deere 6329D engine.
What fuel does the Cummins/Onan 50.0 DDB T5R use?
The Cummins/Onan 50.0 DDB T5R runs on diesel.
What is the oil capacity of the Cummins/Onan 50.0 DDB T5R?
The John Deere 6329D engine in the Cummins/Onan 50.0 DDB T5R has an oil capacity of 13.4 liters.
What alternator does the Cummins/Onan 50.0 DDB T5R use?
The Cummins/Onan 50.0 DDB T5R uses a Cummins/Onan UR 15R 60 Hz / UR 515R 50 Hz alternator.
Troubleshooting
13Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Fault lamp lights and engine stops cranking after approximately 75 seconds. | See engine service manual for troubleshooting fuel system. After correcting fault, reset monitor by moving run-stop/reset-remote switch to reset position, then to either run or remote to restart engine. |
| Fault lamp lights immediately after engine starts. | Check for: a. overspeed condition as engine starts. b. high temperature condition. c. faulty high engine temperature sensor or overspeed switch. d. faulty starter disconnect. |
| Fault lamp lights after engine is running. | Check the following: a. Oil level-engine will shutdown after approximately 12-1/2 seconds if low oil pressure sensor does not open. b. Oil pressure sensor may be defective. c. High engine temperature - caused by low coolant level, faulty thermostat, etc. d. Faulty high engine temperature sensor. e. Faulty starter disconnect. |
| Fault lamp lights - no fault condition exists. | Be certain that no fault condition exists. Disconnect lead 29, 30 and 31 from TB11 inside control box (refer to wiring diagram). If fault lamp still lights with leads disconnected, remove and replace engine monitor plug-in printed circuit board. |
| Overcrank fault lamp lights and engine stops cranking after approximately 75 seconds. | See engine service manual for troubleshooting fuel system. After correcting fault, reset monitor by moving run-stop/reset-remote switch to reset position, then to either run or remote to restart engine. |
| Overcrank fault lamp lights after engine has run for approximately 75 seconds. | Replace start-disconnect circuit board. |
| High engine temperature lamp lights as soon as engine starts. | Check for defective sensor or actual high temperature condition. |
| Low oil pressure lamp lights after engine is running. | Check: a. Oil level - engine will shut down after approximately 12-1/2 seconds if oil pressure is low. |
| High engine temperature lamp lights after engine is running. | Check for: a. Defective thermostat/thermostats. b. Low coolant level. c. Defective high engine temperature sensor. |
| Overspeed lamp lights - no fault condition exists. | Replace overspeed circuit board. |
| Low oil pressure fault lamp lights - no fault condition exists. | Be certain that no fault condition exists. Disconnect lead 30 from TB11 inside control box (refer to wiring diagram), if low oil pressure lamp still lights, remove and replace engine monitor plug-in printed circuit board. |
| High engine temperature fault lamp lights - no fault condition exists. | Be certain that no fault condition exists. Remove lead 31 from TB11 inside control box (refer to wiring diagram). If high engine temperature lamp still lights, remove and replace engine monitor plug-in printed circuit board. |
| When pressing test lamp button - one or more fault lamps do not light. | Fault lamp/lamps burned out - replace. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 193A104 | Element, Water Temp. | 1 | Sensor | PartsGeek |
| 193A108 | Element, Oil Pressure | 1 | Sensor | PartsGeek |
| 309A179 | Switch, Water Hi-Temp. | 1 | Sensor | PartsGeek |
| 309B10 | Switch, Low Oil Pressure | 1 | Sensor | 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% | 14.8 | 3.9 |
Available documents
Operator's manual — 944-0120 Onan DDB Operator's Manual (2-1978) (Cummins/Onan)