Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 157 kW |
| Standby kVA | 192 |
| Prime power | 117 kW |
| Emissions | not stated |
| Controller | not stated |
| Oil capacity | 6.8 L |
| Alternator | Mecc Alte ECO 37-1S |
| Voltage options | 240 V, 208 V, 480 V |
| Phase | 3 |
| Rated current | 490.7 A |
| Power factor | 0.8/1.0 |
| Circuit breaker | 500 A |
| Battery group | 24 V/65 Ah |
| Battery voltage | 24 V |
| Battery quantity | 1 |
| Coolant capacity | 9.2 L |
| Max ambient | 40 °C |
| Dimensions (L×W×H) | 3471×1431×2128 mm |
| Dry weight | 3560 kg |
| Sound level | 85.0 dBA @ 7 m |
| Fuel tank | 477.0 L |
| Tank runtime | 12.2 hr |
Engine
| Oil capacity | 6.8 L |
|---|---|
| Coolant capacity | 9.2 L |
| Displacement | 8.5 L |
| Aspiration | turbocharged, intercooled |
| Rated speed | 1800 rpm |
Same engine, other brands
1 brandThe Detroit Diesel S50 in this set also powers 1 generator set sold under 1 other brand. Service parts and maintenance intervals for the engine are shared; enclosure, alternator, controller and ratings are not.
| Brand | Models |
|---|---|
| Atlas Copco | QAS228 Gd USA |
Maintenance & consumables
for the Detroit Diesel S50| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Clean/Replace | — | 2000 hr | ||
| Fuel filter | Replace | — | 500 hr | ||
| Oil filter | Replace | — | 2000 hr | ||
| Battery | Replace | — | 500 hr | ||
| Belt | Replace | — | 2000 hr | ||
| Coolant | Check/Clean | 9.2 | — | 500 hr | |
| Oil | High-quality, mineral, hydraulic or synthesized hydrocarbon oil with rust and oxidation inhibitors, anti-foam and anti-wear properties is recommended. | 6.8 | — | 2000 hr | |
| Spark plug | Check/Replace | — | 2000 hr |
Common questions
What is the power rating of the Cummins/Onan 4D6?
The Cummins/Onan 4D6 is rated 157 kW standby (192.43 kVA).
What engine is in the Cummins/Onan 4D6?
The Cummins/Onan 4D6 is powered by the Detroit Diesel S50 engine.
What kind of fuel does the Cummins/Onan 4D6 run on?
The Cummins/Onan 4D6 runs on Diesel.
What's the oil capacity on a Cummins/Onan 4D6?
The Detroit Diesel S50 engine in the Cummins/Onan 4D6 has an oil capacity of 6.8 liters.
What is the coolant capacity of the Cummins/Onan 4D6?
The Cummins/Onan 4D6 cooling system holds 9.2 liters (2.4 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the continuous rating of the Cummins/Onan 4D6?
The Cummins/Onan 4D6 is rated 117 kW prime (143 kVA), against 157 kW standby.
How loud is the Cummins/Onan 4D6?
The Cummins/Onan 4D6 is rated at 85.0 dBA at 7 m, per the manufacturer specification sheet.
What is the dry weight of the Cummins/Onan 4D6?
The Cummins/Onan 4D6 has a dry weight of 3560 kg (7848 lb).
How big is the fuel tank on the Cummins/Onan 4D6?
The Cummins/Onan 4D6 has a 477 liter (126 US gallon) fuel tank, giving about 12.2 hours of runtime.
What voltage does the Cummins/Onan 4D6 produce?
The Cummins/Onan 4D6 is offered in 240 V, 208 V, 480 V, 3-phase.
How many cold cranking amps does the Cummins/Onan 4D6 require?
The Cummins/Onan 4D6 uses 1 battery, 24 V each, group 24 V/65 Ah, per the manufacturer specification sheet.
What alternator does the Cummins/Onan 4D6 use?
The Cummins/Onan 4D6 uses a Mecc Alte ECO 37-1S alternator.
Troubleshooting
7Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Blown fuse. | Replace fuse. |
| Insufficient residual voltage. | Increase the speed by 15 %. |
| No residual voltage. | For an instant apply on the + and – terminals of the electronic regulator a 12 V battery voltage with a 30 Ω resistor in series respecting the polarities. |
| Connections are interrupted. | Check connection cables as per attached drawings. |
| Voltage potentiometer out of setting. | Reset voltage. |
| Speed variation in engine. | Check regularity of rotation. |
| Regulator out of setting. | Regulate stability of regulator by acting on “STABILITY” potentiometer. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.