HomeCummins/OnanCummins/Onan DFT Series

Cummins/Onan DFT Series Generator Set

The Cummins/Onan DFT Series is a 300 kW Diesel standby generator set powered by a Cummins/Onan V1710-P500 engine. It is available at 120/208 V, 127/220 V, 139/240 V, 240/416 V, 254/440 V, 277/480 V, 110/190 V, 115/200 V, 220/380 V and 230/400 V, 3-phase, 60 Hz and rated 1042 A. It holds about 21 L (5.5 gal) of oil and 21 L (5.5 gal) of coolant. Starting uses 2 group-8 batteries rated 225 CCA at 24 V. The set measures 3175×1400×2065 mm (125.0×55.1×81.3 in) and weighs about 4500 kg (9921 lb).

300 kW
Standby
1710.0 L
Displacement
21.0 L
Oil capacity
1
Document types

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power300 kW
Prime power250 kW
ControllerV1710-P500
Oil capacity21.0 L
AlternatorCummins/Onan YB17/1
Voltage options120/208 V, 127/220 V, 139/240 V, 240/416 V, 254/440 V, 277/480 V, 110/190 V, 115/200 V, 220/380 V, 230/400 V
Phase3
Rated current1042 A
Power factor0.8
Circuit breaker35 A
Battery group8D
Battery cranking225 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity21 L
Dimensions (L×W×H)3175×1400×2065 mm
Dry weight4500 kg

Engine

Cummins/Onan V1710-P500
Oil capacity21.0 L
Coolant capacity21.0 L
Displacement1710.0 L
AspirationNatural
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan V1710-P500
ItemSpecCapacityPart #Interval
Air filterAir Filter find
Fuel filterFuel Filter find
Oil filterEngine Oil Filter find
BeltBelt find
CoolantCoolant21.0 Gallons
OilEngine Oil21.0 Gallons

Common questions

What is the power rating of the Cummins/Onan DFT Series?

The Cummins/Onan DFT Series is rated 300 kW standby.

What engine does the Cummins/Onan DFT Series use?

The Cummins/Onan DFT Series is powered by the Cummins/Onan V1710-P500 engine.

What fuel does the Cummins/Onan DFT Series use?

The Cummins/Onan DFT Series runs on Diesel.

What is the oil capacity of the Cummins/Onan DFT Series?

The Cummins/Onan V1710-P500 engine in the Cummins/Onan DFT Series has an oil capacity of 21.0 liters.

What alternator does the Cummins/Onan DFT Series use?

The Cummins/Onan DFT Series uses a Cummins/Onan YB17/1 alternator.

Troubleshooting

14

Symptoms & remedies

SymptomRemedy
Fault lamp lights and engine stops cranking after approximately 75 seconds.See engine service manual for troubleshooting fuel system, ignition system, etc. After correcting problem, reset the engine monitor by holding run-stop-remote switch in stop position, and depressing reset switch. Release and return to run position.
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 shut down 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 - See engine service manual. 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 30 and 31 from T B I l 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, ignition system, etc..After correcting problem, reset the engine monitor by moving run-stop-remote switch to stop position, and depressing reset switch. PENN STATE. Move and hold run-stop-remote switch to OFF. Press reset, release and move switch to ON.
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 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. High temperature condition. See Engine service manual. b. 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 T B I l 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.
Non-StartIf after a few seconds of cranking engine fails to start, or starts and runs then stops and fault lamp lights, refer to appropriate troubleshooting chart, Table 3 or Table 4.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

2
Part #DescriptionQtySystem
309-0253Thermostat1Thermostat PartsGeek
B184PHASE SELECTOR SWITCH1Service 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

RatingLoadL/hgal/h
Standby100%25.495.4

Available documents

Owner's manual — 960-0310 Onan DFT Operator's and Parts Manual (9-1973) (Cummins/Onan)