HomeCummins/OnanCummins/Onan DFP 517

Cummins/Onan DFP 517 Generator Set

The Cummins/Onan DFP 517 is a 190 kW (237.5 kVA) Diesel standby generator set powered by a Cummins/Onan NT855-G engine. It is available at 24 V, Single-phase, 50 Hz and rated 237.5 A. It holds about 40 L (10.6 gal) of oil and 53 L (14.0 gal) of coolant. Starting uses 2 group-8 batteries rated 810 CCA at 24 V. The set measures 2940×1120×1820 mm (115.7×44.1×71.7 in) and weighs about 2690 kg (5930 lb).

190 kW
Standby
14.0 L
Displacement
40.0 L
Oil capacity
0
Document types

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Specifications

FuelDiesel
Frequency50.0 Hz
Standby power190 kW
Standby kVA237
Prime power165 kW
ControllerCummins
Oil capacity40.0 L
AlternatorCummins/Onan YB 517 50Hz
Voltage options24 V
PhaseSingle
Rated current237.5 A
Power factor0.8
Battery group8D
Battery cranking810 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity53 L
Dimensions (L×W×H)2940×1120×1820 mm
Dry weight2690 kg

Engine

Cummins/Onan NT855-G
Oil capacity14.0 L
Coolant capacity53.0 L
Displacement14.0 L
AspirationSolenoid Shift Isochronous
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan NT855-G
ItemSpecCapacityPart #Interval
Air filter140-1347 PartsGeek
Fuel filter3000 hr find
Oil filterOil Filter with Crankcase1000 hr find
BeltFan Belt and Radiator Fan500 hr find
Coolant53.0 l1000 hr
Coolant filterA 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. find
OilAPI CC/CD40.0 l500 hr

Common questions

What is the power rating of the Cummins/Onan DFP 517?

The Cummins/Onan DFP 517 is rated 190 kW standby (237.5 kVA).

What engine does the Cummins/Onan DFP 517 use?

The Cummins/Onan DFP 517 is powered by the Cummins/Onan NT855-G engine.

What fuel does the Cummins/Onan DFP 517 use?

The Cummins/Onan DFP 517 runs on Diesel.

What is the oil capacity of the Cummins/Onan DFP 517?

The Cummins/Onan NT855-G engine in the Cummins/Onan DFP 517 has an oil capacity of 14.0 liters.

What alternator does the Cummins/Onan DFP 517 use?

The Cummins/Onan DFP 517 uses a Cummins/Onan YB 517 50Hz alternator.

What air filter does the Cummins/Onan DFP 517 use?

The Cummins/Onan DFP 517 uses air filter part number 140-1347.

Troubleshooting

14

Symptoms & remedies

SymptomCauseRemedy
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.
Engine runs, shuts down, cranks for 75 seconds, cranking cycle stops, overcrank light ON.. Check fuel supply.
"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 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 shutdown.. Check governor and throttle linkages for freedom of movement. —°Check overspeed switch.
"Overspeed light on, no shutdown.. Disconnect wire at TB11-29. Light on after reset; replace engine monitor board.
"Low oil pressure light ON. No shutdown.. Disconnect wire at TB11-30. Light ON after relay reset. Replace engine monitor board.
"High engine temperature light ON. No shutdown.. Disconnect wire at TB11-31. Light ON after relay reset. Replace engine monitor board.
Engine fails to start after a few seconds of cranking, or starts and runs then stops and fault lamp lightsRefer to appropriate troubleshooting chart Table 4 or Table 5

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

Parts

28
Part #DescriptionQtySystem
140-1347Cap, Air Cleaner1Air filter PartsGeek
155-1035Cleaner, Air1Air filter PartsGeek
191-0688Alternator - Includes Regulator (Motorola #70D44039B04)1Alternator PartsGeek
191-0725Guard, Belt1Belt PartsGeek
191-0781191-0688 t1Alternator PartsGeek
191-0852Starter (24 Volt)1Starter PartsGeek
193-0108Sender, Oil Pressure Gauge1Sensor PartsGeek
193-0244Sender, Oil Pressure (E1)1Sensor PartsGeek
309-0178Switch, Thermostatic - High Coolant Temperature Alarm1Sensor PartsGeek
501-0087ClamD, Hose1Hose PartsGeek
503-0354Clamp, Hose4Hose PartsGeek
503-0641Hose, Flexible Air Cleaner1Air filter PartsGeek
503-0748Clamp, Hose - Air Cleaner1Air filter PartsGeek
503-0752Hose, Upper1Hose PartsGeek
503-0756Hose, Radiator (Lower)1Hose PartsGeek
511-0084130-3176-02 1 191-1926-02 70D44970S02 MO 1 3RG3032 MO 1 511-0156 2 LO 3318853 CE 1 121Belt PartsGeek
130-0843Bracket, Radiator Support2Service part / kit PartsGeek
130-0846Opening for 34" Fan1Service part / kit PartsGeek
130-0924Clamp, Hose1Service part / kit PartsGeek
130-0992Radiator1Service part / kit PartsGeek
140-1349Cable, Battery Positive1Service part / kit PartsGeek
191-1141Bracket, Alternator Mounting1Service part / kit PartsGeek
309-01691 Begin Spec G 25 261Service part / kit PartsGeek
503-0197503-0197 Miscellaneous Engine1Service part / kit PartsGeek
504-0028Valve, Radiator Drain1Service part / kit PartsGeek
TB11-29Engine Monitor Board1Service part / kit PartsGeek
TB11-30Engine Monitor Board1Service part / kit PartsGeek
TB11-31Engine Monitor Board1Service 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
Prime100%16.517.0
Standby100%18.119.0

Available documents