HomeCummins/OnanCummins/Onan 80 DGDA

Cummins/Onan 80 DGDA Generator Set

The Cummins/Onan 80 DGDA is a 80 kW (100 kVA) Diesel standby generator set powered by a Cummins/Onan 6BT5.9-G2 engine. It is available at 24 V, 1-phase and 50 Hz. It holds about 17.3 L (4.6 gal) of oil and 19 L (5.0 gal) of coolant. Starting uses 2 group-1300 batteries rated 1650 CCA at 24 V. The same 6BT5.9-G2 engine also powers generator sets from AKSA.

80 kW
Standby
5.9 L
Displacement
17.3 L
Oil capacity
2
Document types

How to read your Cummins/Onan serial & model number →

Specifications

FuelDiesel
Frequency50.0 Hz
Standby power80 kW
Prime power80 kW
ControllerDetector 7
Oil capacity17.3 L
Voltage options24 V
Phase1 or 3
Power factor0.8
Battery group1300
Battery cranking1650 CCA
Battery voltage24 V
Battery quantity2
Coolant capacity19 L

Engine

Cummins/Onan 6BT5.9-G2
Oil capacity16.4 L
Coolant capacity10.5 L
Displacement5.9 L
Aspirationturbo after cooled
Rated speed1500 rpm

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterThe filter element should be replaced yearly or sooner if the service indicator button pops up indicating air restriction.8760 hr find
Fuel filterThe filters (see Figure 5-4) are spin-off, throw-away units. A water drain is situated at the bottom of one filter case. This should be used to drain off moisture either daily or at the end of every exercise period, depending on unit application.50 hr find
Oil filterReplace the oil filter every time the oil is changed.500 hr find
Belt find
Coolant
OilChange the oil and filter at the intervals recommended in the maintenance table.500 hr

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Common questions

What is the power rating of the Cummins/Onan 80 DGDA?

The Cummins/Onan 80 DGDA is rated 80 kW standby.

What engine does the Cummins/Onan 80 DGDA use?

The Cummins/Onan 80 DGDA is powered by the Cummins/Onan 6BT5.9-G2 engine.

What fuel does the Cummins/Onan 80 DGDA use?

The Cummins/Onan 80 DGDA runs on Diesel.

What is the oil capacity of the Cummins/Onan 80 DGDA?

The Cummins/Onan 6BT5.9-G2 engine in the Cummins/Onan 80 DGDA has an oil capacity of 16.4 liters.

Troubleshooting

14

Symptoms & remedies

SymptomCauseRemedy
PRE HI ENGINE TEMP lamp lights. Engine continues to operate.Indicates engine has begun to overheat and engine temperature has risen to approximately 215F (102C).A. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. If engine can be stopped, follow procedure in step 3.
HI ENG TEMP lamp lights. Engine shuts down.Allow engine to cool down completely before proceeding with the following checks: a. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center for service if none of the above.
PRE LO OIL PRES lamp lights. Engine continues to operate.Indicates engine has overheated (engine temperature has risen above 222F/106C) or coolant level is low (sets with coolant level sensor).A. Check coolant level and replenish if low. Look for possible coolant leakage points and repair if necessary. b. Check for obstructions to cooling airflow and correct as necessary. c. Check for a slipping fan belt and tighten if loose. d. Reset control and restart after locating and correcting problem. Contact an authorized service center for service if none of the above.
LO OIL PRES lamp lights. Engine shuts down.Indicates engine oil pressure has dropped to 20 psi (138 kPa).If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow step 5 procedure. If engine can be stopped, follow procedures in step 5.
LO OIL PRES lamp lights.Indicates engine oil pressure has dropped to 14 psi (97 kPa).Check oil level, lines and filters. If oil system is OK but oil level is low, replenish. Reset control and restart. Contact an authorized service center if oil pressure is not in the range of 25 to 40 psi (172 to 275 kPa).
OVERCRANK lamp lights and engine stops cranking.Indicates possible fuel system problem.A. Check for empty fuel tank, fuel leaks, or plugged fuel lines and correct as required. b. Check for dirty fuel filter and replace if necessary (see Maintenance section). c. Check for dirty or plugged air filter and replace if necessary (see Maintenance section). d. Reset the control and restart after correcting the problem. Contact an authorized service center for service if none of the above.
Engine runs and then shuts down, OVERSPEED lamp lights.Indicates engine has exceeded normal operating speed.Contact an authorized service center for service.
SWITCH OFF lamp flashes.Indicates Run/Stop/Remote switch is in the Stop position which will prevent automatic starting if an automatic transfer switch is used. Move the Run/Stop/Remote switch to the Remote position for automatic starting.
LO FUEL lamp lights. Engine continues to run.Indicates diesel fuel supply is running low.Check fuel supply and replenish as required.
LO FUEL LAMP lights. Engine shuts down and LO OIL PRES lamp lights.Indicates engine has run out of fuel. Check fuel level and replenish as required.
LO ENG TEMP lamp lights. Set is in standby mode but is not operating.Lamp lights when engine coolant temperature is 70 F (21 C) or lower. Since the lamp goes out after the engine warms up, there should be no cause for alarm even during initial generator set operation.
The FAULT 1 or FAULT 2 fault lamp lights. Engine shuts down immediately, engine runs for several seconds and then shuts down, or engine continues to run.The standard undesignated fault functions are programmed to shut down the set when a fault is sensed. Fault 1 is time delayed while Fault 2 is immediate. The nature of the fault is an optional selection that is determined when the set installation is designed. The undesignated fault functions may also be programmed for non-shutdown or non-time delay.
The external alarm and fault lamp may be deactivated by moving the Run/Stop/Remote switch to the Stop position and pressing the Reset/Lamp Test/Preheat switch.Locate the problem and correct it before restarting the set. While pressing the Reset/Lamp Test/Preheat switch, make certain that all lamps light.
Engine fails to start or starts, runs and then stopsRefer to Troubleshooting charts in the Operator’s Manual

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

Parts

15
Part #DescriptionQtySystem
982-0200Air Filter6Air filter buy
GM12667Sealing ring1Seal buy
965-0520Cooling Fan37Service part / kit buy
GM12641Safety/locking agent1Service part / kit buy
GM12657Dipstick1Service part / kit buy
GM12676Cylinder liner1Service part / kit buy
GM12678Screw plug1Service part / kit buy
GM12697Torx-head bolt1Service part / kit buy
GM12921Hexagon bolt1Service part / kit buy
GM12924Rear end cover1Service part / kit buy
GM12936Wrapped bearing bush1Service part / kit buy
GM12937Wrapped bearing bush1Service part / kit buy
GM12954Dipstick1Service part / kit buy
GM12970Compression spring1Service part / kit buy
GM13175Pipe clamp1Service part / kit buy

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
Prime
Standby

Available documents

Parts manual — 0960-0211 I8 201410 (Cummins/Onan)Service manual — 960-0143 Cummins DGBA DGCA DGDA Operator's Manual (8-2015) (Cummins/Onan)Service manual — 960-0610 Onan DGBB thru DGFB Installation Manual (10-1995) (Cummins/Onan)