Cummins/Onan DGCA — Specs, Engine, Parts & Maintenance

Service parts for the DGCA

Grouped by system, with how many of each the parts manual calls for.

Belts

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Fuel	Diesel
Frequency	50.0 Hz
Standby power	40 kW
Standby kVA	50
Prime power	32 kW
Emissions	Tier 1
Controller	PCC, PCC2100, PowerCommand 2100, PowerCommand PCC 3100, PowerCommand PCC2100
Oil capacity	16.0 L
Alternator	UR (4-pole)
Voltage options	24 V
Phase	three-phase
Power factor	0.8
Battery group	2
Battery cranking	1080 CCA
Battery voltage	12 V
Battery quantity	2
Coolant capacity	21 L
Max ambient	40 °C
Dimensions (L×W×H)	2104×1016×1207 mm
Dry weight	780 kg
Fuel tank	25.0 L

Engine

Cummins/Onan 4BT3.9Gl

Rated speed	1800 rpm

Maintenance & consumables

for the Cummins/Onan 4BT3.9Gl

Item	Spec	Capacity	Part #	Interval
Air filter	Replace yearly or when service indicator pops up		—	8760 hr
Fuel filter	Change per maintenance schedule		—	500 hr
Oil filter	Change per maintenance schedule		—	500 hr
Battery	1.225		—
Belt	Belt, V-Grooved		328876800		eBay
Coolant	Refer to Cummins engine Operation and Maintenance Manual for coolant recommendations/specifications	29.5 L	—	500 hr
Coolant filter	Change per maintenance schedule		—	500 hr
Oil	Refer to Cummins engine Operation and Maintenance Manual for lubricating oil classification and viscosity	25.2 L	—	500 hr
Spark plug			—

Service intervals

Item	Action	Hours	Months	Notes
Charge air piping	Check	50 hr		Daily or after 8 hours
Coolant level	Check	8 hr		Daily or after 8 hours
Engine oil level	Check	8 hr		Daily or after 8 hours
Fuel Filter(s)	Drain	8 hr		Drain 1 cup or more of fuel to remove water and sediment. Refer to engine operation and maintenance manual for procedure.
Fuel Tanks (water and sediment)	Drain	8 hr		Drain 1 cup or more of fuel to remove water and sediment.
Fuel level	Check	8 hr		Daily or after 8 hours
General genset inspection	Inspect	8 hr		Daily or after 8 hours. Check for oil, fuel, cooling and exhaust system leaks; check exhaust audibly and visually with set running.
Inspect Genset	Check	8 hr		Check for oil, fuel, cooling and exhaust system leaks. Check exhaust system audibly and visually with set running and repair any leaks immediately.
Oil Level	Check	8 hr		Keep oil level near the dipstick high mark without overfilling.
Air Cleaner	Clean	50 hr		Clean if required. Perform more often in dusty conditions.
Air cleaner (clean if required)	Clean	50 hr		Weekly or after 50 hours; perform more often in dusty conditions
Battery charging system	Check	50 hr		Weekly or after 50 hours
Coolant heater	Check	50 hr		Weekly or after 50 hours
Crankcase Oil	Drain	50 hr		First service — Break-in: drain and replace the crankcase oil after the first 50 hours of operation on new generator sets.
Engine oil and filter	Change	50 hr		First service — Drain and replace crankcase oil after first 50 hours on new generator sets
Exhaust condensate trap	Drain	50 hr		Weekly or after 50 hours
Water and sediment from fuel tank	Drain	50 hr		Weekly or after 50 hours; drain 1 cup or more of fuel to remove water and sediment
Radiator hoses for wear and cracks	Inspect	100 hr		Monthly or after 100 hours
Starting batteries	Check	100 hr		Monthly or after 100 hours
Battery electrolyte level	Check	200 hr		Check at least every 200 hours of operation
Anti-freeze and DCA Concentration	Check	250 hr	3 mo	Refer to engine operation and maintenance manual.
Crankcase oil and filter	Change	250 hr	12 mo	Refer to Cummins Engine Operation and Maintenance Manual. Standby applications: change every 12 months or 250 hours, whichever comes first.
Drive Belt Tension	Check	250 hr	3 mo	Visually check belt for evidence of wear or slippage. Replace if hard or brittle. Refer to engine operation and maintenance manual.
Fuel Filters	Change	250 hr	3 mo	Refer to engine operation and maintenance manual.
Governor Adjustment	Check	250 hr	3 mo
Radiator Hoses for Wear & Cracks	Check	250 hr	3 mo
Coolant Filter	Change	500 hr	6 mo	Refer to engine operation and maintenance manual.
Cooling System	Clean	500 hr	6 mo	Refer to engine operation and maintenance manual.
Crankcase Breather	Clean	500 hr	6 mo	Refer to engine operation and maintenance manual.
Generator bearing	Inspect	1000 hr		Inspect for wear every 1000 hours by an Onan Distributor
Valve Lash	Adjust	1000 hr		After 1000 hours; contact an authorized service center for service
Alternator Bearings	Inspect	4000 hr	24 mo	Inspect all sealed bearings every 4000 to 4500 hours (10000 hr/2 years)
Generator bearing	Replace	10000 hr	24 mo	Prime power: every 10,000 hours or after two years; standby power: every five years
Alternator Bearings	Replace	30000 hr	60 mo	Replace all sealed bearings every 30000 hr/5 years (or if necessary after 10000 hr/2 years)
Air cleaner element	Change	500 hr	12 mo	Yearly or sooner if service indicator pops up
Air cleaner element	Replace		12 mo	Replace yearly or sooner if service indicator pops up; more often in dusty conditions
Generator set exercise	Test		1 mo	Exercise at least once a month for a minimum of 30 minutes at not less than 30 percent of nameplate rating

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Service specifications

Type	Item	Value	Unit	Condition
Clearance	Float switch lift below C-clip stop	1/8	inch (3 mm)
Clearance	Overspeed switch magnet-to-fly arm air gap (minimum)	0.005	inches (0.13 mm)
Gap	Mechanical overspeed switch air gap between magnet and fly arm (replace switch if less)	0.005	inches (0.13 mm)
Other	AVR DROOP preset at factory	five percent droop at full load and zero power factor
Other	Battery electrolyte corrected specific gravity (fully charged)	1.260		electrolyte temperature corrected
Other	Battery electrolyte specific gravity, fully charged (corrected)	1.260		corrected to 80 °F (27 °C)
Other	Battery recharge threshold specific gravity	1.215
Other	Battery specific gravity recharge threshold	1.260	specific gravity	recharge if below
Other	Battery specific gravity temperature correction	four gravity points (0.004) for every ten degrees above 80 F (27 C)
Other	Battery specific gravity, fully charged	approximately 1.260	at 80°F (27°C)
Other	Coolant level below radiator cap opening	2	inches
Other	Cycle crank crank and rest time	7 to 20	seconds
Other	Cycle crank number of cycles	3, 4, or 5
Other	Cycle cranking option	15	seconds	15 s crank, 15 s rest, 3 cycles
Other	ECM fuse F1 (starter solenoid circuit)	20	amps
Other	ECM fuse F2 (fuel solenoid circuit)	20	amps
Other	ECM fuse F3 (continuous B+ to remote circuits)	15	amps
Other	ECM fuse F4 (ECM circuits)	5	amps
Other	ECM fuse F5 (engine gauge circuits)	5	amps
Other	Frequency adjustment range	±5%	%	genset running
Other	Fuse A31-F1 (control B+)	5	Amp	Engine Interface board
Other	Fuse A31-F3 (auxiliary B+)	5	Amp	Engine Interface board; panel lights, run and start relays
Other	Fuse A38-F1 (Network B+)	10	Amp	Governor Output Module
Other	Fuse A38-F2 (Switched B+)	10	Amp	Governor Output Module
Other	Fuse A38-F3 (Governor B+)	10	Amp	Governor Output Module
Other	Fuse TB-Bat F1 (Customer B+)	20	Amp	Engine Harness Assembly
Other	GOV RAMP adjustment range	0 through 10	seconds
Other	Governor droop adjustment range	within 5	percent of nominal frequency (3 Hz for 60Hz sets, 2.5 Hz for 50Hz sets)
Other	Low oil pressure / high engine temperature fault time delay	about 10	seconds	following starter disconnect and inhibited during cranking
Other	Overcrank cranking limit	75	seconds	standard overcrank control
Other	Overcrank limit (Sentinel)	60	seconds
Other	Overcrank option limit (Detector)	75	seconds
Other	Overspeed warning range 60 Hz sets	2000 to 2200	RPM
Other	REG VHZ adjustment range	1 through 50 (normal range 7 through 21)
Other	Response jumper setting - 90 to 550 kW	B to C
Other	Response jumper setting - over 550 kW	A to B
Other	Response jumper setting - under 90 kW	A to C
Other	Setup/calibration menu access code	574
Other	Standard cycle cranking (Detector)	three 15-second cranking cycles with two 15-second rest periods
Other	Start delay adjustment range	0 to 300	seconds	remote starting in Auto mode
Other	Stop delay adjustment range	0 to 600	seconds	remote stopping in Auto mode
Other	Trailer brake shoe adjustment back-off	10	clicks
Other	Trailer surge brake actuator stroke length (service brakes if exceeds)	1	inch (25 mm)
Other	Under-frequency roll-off (UFRO) threshold, 50 Hz applications	49	Hz
Other	Under-frequency roll-off (UFRO) threshold, 60 Hz applications	59	Hz
Other	Voltage adjustment range	±5%	%	genset running
Pressure	Engine oil pressure (normal)	30 to 65	psi (207 to 449 kPa)	at normal operating temperature
Pressure	Engine oil pressure range (low oil pressure troubleshooting)	25 to 65	psi (172 to 449 kPa)
Pressure	Fuel shutoff valve rating (TB1-8 and TB1-5)	not more than 0.5	amps	120 or 240 VAC
Pressure	Idle oil pressure	10 - 30	psi (69 - 207 kPa)	idle
Pressure	Idle oil pressure	10-30	psi (69-207 kPa)	idle
Pressure	Idle oil pressure	69-207	kPa	idle
Pressure	Idle oil pressure (normal)	10-30	psi (69-207 kPa)	Engine model 6C, idle
Pressure	Idle oil pressure shutdown limit	55	kPa	idle
Pressure	Idle oil pressure shutdown limit	8	psi (55 kPa)	idle
Pressure	Idle oil pressure warning limit	12	psi (83 kPa)	idle
Pressure	Idle oil pressure warning limit	83	kPa	idle
Pressure	Low Oil Pressure shutdown threshold	14	psi (97 kPa)
Pressure	Low Oil Pressure shutdown threshold (less than)	14	psi
Pressure	Low oil pressure cutout switch test threshold (service lubricating system if less)	10	psi	while cranking

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

Fluid	Grade	Standard	Ambient	Notes
Coolant		soft water/E.G./DCA mixture		Installation review checklist item: cooling system must be filled with soft water/E.G./DCA mixture.
Coolant	50/50 mix of water and antifreeze	Balanced coolant mixture of water, antifreeze and coolant additives		Drain and replace the mixture every 6 months or after 500 hours of operation. Do not add cold coolant to a hot engine; allow engine to cool below 120 F (50 C) before adding coolant.
Coolant	Water/antifreeze mixture			Permanent type antifreeze mixed per supplier for lowest expected ambient; do not use anti-leak additives
Engine oil		Refer to Cummins engine Operation and Maintenance Manual for lubricating oil classification		Gensets are shipped with oil added.
Engine oil	5W (Synthetic Oil)	API CC/CD, sulphated ash max 1.85%	below -23°C	Below -10 F (-23 C) and below; pour point 9 F (5 C) below lowest expected temperature
Engine oil	10W-30	API CC/CD	-23°C to -10°C	-10 F (-23 C) to 14 F (-10 C)
Engine oil	15W-40	API CC/CD	above -10°C	14 F (-10 C) and above
Engine oil	20W-40	API CC/CD	above 0°C	32 F (0 C) and above
Fuel	Diesel			Do not use zinc coated or copper fuel lines with diesel fuel.
Fuel	No. 2 diesel			No. 1 fuel or similar acceptable; consult engine manufacturer for non-standard fuel
Fuel	diesel			Do not use zinc coated or copper fuel lines with diesel fuel.
Hydraulic oil	DOT-3			Trailer master cylinder reservoir - keep at least half full

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Fault codes

Code	Name	Meaning	Severity	Action
101	IDLE MODE	Indicates that the engine is operating in idle mode; generator build-up is inhibited and engine governed at 800 RPM.	Warning	Remove ground from the engine idle input to return to normal speed and voltage.
102	EMERGENCY STOP	Indicates local or remote Emergency Stop.	Shutdown	Pull the button out; move the Run/Off/Auto switch to Off; press the Reset switch; select Run or Auto as required. Can only be reset at the PCC front panel.
1122	Rated/Idle Trans		Info
1123	Shutdown After Battle Short	A shutdown fault occurred while Battle Short was enabled and transitioned from enabled to disabled.	Shutdown	Review Fault History and perform corrective action.
1124	Delayed Shutdown	A shutdown fault became active while the Delayed Shutdown feature was enabled.	Warning	Review Fault History and perform corrective action.
1131	Battle Sh Active	Control is in Battle Short mode (bypasses several critical fault shutdowns).	Warning	None; used for genset operation during emergencies.
121	Speed Signal Lost	Mag pickup speed indication is not being sensed.	Shutdown	Restart and check RPM on digital display; inspect MPU wires/connector pins; check for 3.5 to 15 VAC at MPU while cranking.
1311	Customer Input #1		Warning	Optional customer selection (e.g., Low Fuel Day Tank, Water In Fuel, Ground Fault, Low Starting Hydraulic Pressure, Low Starting Air Pressure). Programmable: enable/disable, status/warning/shutdown, active closed or open, and display name.
1311, 1312, 1317, 1318	CUSTOMER INPUT #1 - #4	Optional customer-selected fault input is active.		Disconnect signal lead from TB1 and reset the control; check external wiring/active input selection.
1312	Customer Input #2		Warning	Optional customer selection; programmable (enable/disable, status/warning/shutdown, active open/closed, display name). Default #2 thru #4 - Warning.
1317	Customer Input #3		Warning	Optional customer selection; programmable (default #3 - Low Fuel).
1318	Customer Input #4		Warning	Optional customer selection; programmable (default #4 - Rupture Basin Fault).
1334	Crit Scaler Out Of Range	Incorrect feature or calibration was entered into control.	Shutdown	Reload correct feature/calibration file.
1335	Noncrit Scaler Out Of Range	Incorrect feature or calibration was entered into control.	Warning	Reload correct feature/calibration file.
1337	No Message		Info
135	Oil Pressure Sensor H	Engine oil pressure sender signal is shorted high.	Warning	Check sender/connectors/wires; verify fault simulation not enabled; check 0.5 to 4.5 VDC at P7-13 (OP OUT) and P7-17 (OP COM).
141	Oil Pressure Sensor L	Engine oil pressure sender signal is shorted low.	Warning	Check sender/connectors/wires; check for shorts/open circuits at P7-13, 17, 21.
1416	Fail To Shutdown	Genset continues to run after receiving shutdown command (Battle Short feature enabled).	Warning	Check Battle Short feature setting.
1417	Powr Down Error	Controller cannot power down because of an unknown condition.	Warning	Indicates controller cannot power down because of unknown condition. Possible drain on battery. Contact an authorized service center for service.
143	Pre-Low Oil Pres	Engine oil pressure dropped to an unacceptable level.	Warning	Indicates engine oil pressure has dropped below the warning trip point. If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow code 415 procedure.
1433	Emergency Stop	Local Emergency Stop.	Shutdown	Pull the button out; move switch to O; press Fault Acknowledge/Reset; select Manual or Auto.
1434	Remote E-Stop	Remote Emergency Stop.	Shutdown	See code 1433 to reset.
1435	Low Coolant Temp	Engine coolant heater is not operating or not circulating coolant (coolant <=70 F [21 C]).	Warning	Indicates engine coolant heater is not operating or is not circulating coolant. Check coolant heater power supply for blown fuse or disconnected cord; check for low coolant level and replenish; look for coolant leaks and repair.
1438	Fail To Crank	Engine failed to crank after the PCC received a start signal.	Shutdown	Test for B+ at the starter; check fuse F3 (2 Amps); check K4 start pilot relay and starter circuitry; refer to code 121.
144	Coolant Sensor High	Engine coolant temperature signal is shorted high.	Warning	Check sender/connectors/wires; check resistance between P7-30 (IH20) and P7-34 (IH20 COM).
1442	Weak Battery	During cranking battery voltage at or below weak battery trip point.	Warning	Recharge or replace battery; check electrolyte level and connections; check harness.
1443	Battery Failed	Dead battery - engine will not start.	Shutdown	See code 1438 instructions.
1444	KW Overload	Generator output power exceeded 105% of genset rating (3 sec at 110% of rated).	Warning	Check load and load lead connections; check CTs and CT connections.
1445	Short Circuit	Generator output current exceeded 175% of rated.	Shutdown	Check load and load lead connections (fault may not reset for several minutes).
1446	High AC Voltage	Phase voltage exceeded 130% of nominal, or 110% of nominal for 10 seconds.	Shutdown	Check fault simulation; clear fault and restart; refer to Generator/Base Board Isolation Procedure.
1447	Low AC Voltage	Phase voltage dropped below 85% of nominal for 10 seconds.	Shutdown	Check load; reconnect per reconnection diagram; check PMG/field wiring; check P8-21/P8-22 shunt connections.
1448	Under Frequency	Engine speed dropped below 90% of nominal for 10 seconds.	Shutdown	Check fuel supply, intake air supply and load; check P8 connections.
1449	Over Frequency	Frequency is 10% above base frequency for 20 seconds.	Warning	Check fuel or air delivery problem; repair P7/P8 connections.
145	Coolant Sensor Low	Engine coolant temperature signal is shorted low.	Warning	Check sender/connectors/wires; check for shorts at P7-30 and P7-34.
1452	Gen CB Not Close	Genset circuit breaker (S2) failed to close when PTC enabled.	Warning	Refer to Section 5.
1453	Gen CB Not Open	Genset circuit breaker (S2) failed to open when PTC enabled.	Warning	Refer to Section 5.
1459	Reverse Power	Improper CT phasing.	Shutdown	Check wiring to voltage sense circuit; refer to CT Installation in Section 6.
146	Pre-High Coolant Temp	Engine has begun to overheat (coolant temperature risen to an unacceptable level).	Warning	Reduce load; check air inlets/outlets and remove obstructions to airflow; if engine can be stopped follow code 151.
1461	Loss Of Field	Loss of field (electric) due to reverse kVAR.	Shutdown	Check field circuit.
1466	Modem Failure	Control cannot communicate with the modem.	Warning	Check for open, short circuit to ground, and loose connections to the modem.
1468	Network Error	Momentary loss of communication from the LonWorks Network.	Warning	Refer to the LonWorks Network publications.
1469	Speed/Hz Match	Measured speed and measured AC output frequency do not agree.	Shutdown	Check calibration file.
1471	Over Current	Generator output current exceeded 110% of rated for 60 seconds.	Warning	Check load and load lead connections.
1472	Over Current	Generator output current exceeded 110% of rated; time/current calculation initiated shutdown.	Shutdown	Check load and load lead connections (fault may not reset for several minutes).
151	High Coolant Temp	Engine has overheated (coolant temperature above the shutdown trip point).	Shutdown	Engine has overheated. Allow engine to cool completely, then: check coolant level and replenish and repair leaks; check for obstructions to cooling airflow; check fan belt and repair or tighten; check blower fan and circulation pumps on remote radiator installations; reset control and restart.
197	Low Coolant Level	Engine coolant level has fallen below the warning trip point.	Warning	Indicates engine coolant level has fallen below warning trip point. If generator is powering critical loads and cannot be shut down, wait until next shutdown period, then follow code 235 procedure. If engine can be stopped, follow code 235 procedure.
200	LOW OIL PRESSURE	Indicates engine oil pressure has dropped to an unacceptable level.	Warning	If powering critical loads, wait until next shutdown period and follow 201-SHUTDOWN procedure; check oil pressure via menu prior to clearing fault.
201	LOW OIL PRESSURE	Indicates engine oil pressure has dropped below the shutdown trip point.	Shutdown	Check oil level, lines and filters; replenish if low; reset control and restart. Oil pressure limits in Table 4-3.
204	OIL PRESS SENDER	The control has sensed that the engine oil pressure sender is out of its working range.	Warning	Check that the engine oil pressure sender is properly connected.
210	LOW COOLANT TEMP	Warning occurs when engine coolant temperature is 70°F (21°C) or lower, indicating the engine coolant heater is not operating or is not circulating coolant.	Warning	Indicates engine coolant heater is not operating or is not circulating coolant; check coolant heater power supply/fuse, low coolant level, and open heater element.
211	HIGH COOLANT TEMP	Indicates the engine coolant temperature is getting close to the recommended maximum temperature limit: 215°F (102°C) standby or 207°F (97°C) prime.	Warning	Reduce load if possible; check air inlets/outlets; follow 212-SHUTDOWN procedure if engine can be stopped.
212	Oil Temp Sensor H	Indicates engine has overheated (coolant temperature above the shutdown trip point: 223°F (106°C) standby or 215°F (102°C) prime).	Warning	Check sender/connectors/wires; check resistance between P7-22 (OIL TEMP) and P7-26 (OIL TEMP COM).
213	Oil Temp Sensor L	Resistance of the coolant temperature sender is out of range.	Warning	Check the resistance of the sender; should be 500 to 2k ohms.
214	LOW COOLANT LVL	Indicates engine coolant level has fallen below the trip point.	Warning	Check coolant level in radiator and coolant recovery bottle; look for leakage; reset control and restart.
215	LOW COOLANT LVL	Indicates engine coolant level has fallen below the trip point. LOW COOLANT LVL Shutdown will not occur if genset is in Idle mode (low coolant warning only).	Shutdown	Check coolant level in radiator and recovery bottle and replenish if low; check defective coolant bottle hose or radiator cap; reset control and restart after correcting problem. Will not occur in Idle mode.
220	MAG PICKUP	Mag pickup speed indication is not being sensed or does not match generator set output frequency.	Shutdown	Restart and check RPM on the digital display; isolate per troubleshooting table 4-18.
221	FAIL TO CRANK	Possible fault with control or starting system; engine will not crank.	Shutdown	Check fuse F3 on the Engine Interface board; clean battery cable connections; recharge or replace battery.
222	OVERCRANK	Possible fuel system problem; engine stops cranking.	Shutdown	Check for empty fuel tank, fuel leaks, or plugged fuel lines; check/replace dirty fuel filter and air filter; reset and restart.
223	OVERSPEED	Indicates engine has exceeded normal operating speed (115% ±1% of nominal).	Shutdown	Inspect the mechanical fuel linkage and repair or replace; check the EFC for binding or damage; monitor the PCC duty cycle display and replace A32 or A38 as indicated.
224	FAIL TO SYNCHRONIZE	The generator set has not synchronized to the system bus within the allowable time frame.		Check governor system stability and adjust governing/synchronizer parameters; check for fuel system problems causing engine instability; widen synchronizing window and reduce acceptance time delay.
226	FAIL TO CLOSE	Indicates that the paralleling breaker has been given a signal to close, but has not closed properly.		Verify charging mechanism of paralleling breaker; check the close signal to the breaker; verify auxiliary contact signals from the breaker to the control are operational.
230	LOW DC VOLTAGE	Indicates battery voltage is below 10 VDC.	Warning	Recharge or replace battery; clean/tighten connections; check engine DC alternator; check battery charger float level.
231	HIGH DC VOLTAGE	Indicates battery voltage exceeds 32 VDC.	Warning	Check voltage float level on battery charger if applicable (lower float level); check engine DC alternator and replace if normal battery charging voltage is not obtained.
232	WEAK BATTERY	Indicates battery voltage drops below 60% of nominal for two seconds, during starting.	Warning	Recharge or replace the battery; see 230 LOW DC VOLTAGE.
2327	PTC Fault	PTC module or communication link not working properly when PTC enabled.	Warning	Check blinking light on PTC module; check B+ TB3-3 to TB3-4; check PTC status voltage TB3-5 to TB3-6 (~0.2 VDC); repower control.
2329	Low S1 Frequency	Low utility (S1) frequency.	Warning	Check S1 AC inputs and wiring to PTC at TB5; check sensor set points.
2331	Low S1 Voltage	Low utility (S1) voltage.	Warning	Repower PCC 2100 control to clear; check S1 AC inputs at TB5; check S1 pickup/dropout set points.
2335	Excitation Fault	Loss of all three voltage sense leads or failure in excitation circuit.	Shutdown	Check field wiring (X1 and X2) for shorts or opens.
2336	Memory Error	Control memory error; data corruption of critical operating parameters.	Shutdown	Try reloading calibration file.
2337	Pwr Tran Disabled	PTC module available but PTC feature not enabled.	Warning	Use InPower to enable PTC feature; cycle power off for 5 seconds then repower.
2338	Pwr Tran Failure	PTC module trim enabled but control could not communicate with PTC module.	Warning	Check blinking light and B+ TB3-3 to TB3-4; check connections between TB2 and TB3; cycle power.
2339	Pwr Down Enabled	Power Down (sleep) function enabled but PTC module or network board is active.	Warning	None required.
234	Overspeed	Engine has exceeded normal operating speed.	Shutdown	Clear fault and restart genset; check fault threshold; monitor RPM; check electronic governor actuator.
2341	High Control Temp	Control temperature above normal (158 F [70 C]) for time greater than set time.	Warning	Check genset room air flow.
2342	Too Long In Idle (10 min.)	Genset has been in Idle mode too long.	Warning	Indicates genset has been in Idle mode too long (10 minutes maximum).
235	Low Coolant Level	Engine coolant level has fallen below the shutdown trip point.	Shutdown	Coolant level has fallen below the shutdown trip point. Allow engine to cool completely, then check coolant level and replenish, look for possible coolant leakage points and repair; reset control and restart.
2358	High S1 Voltage	Utility (S1) voltage increased above over voltage threshold.	Warning	Measure S1 AC inputs at PTC module; check utility nominal voltage; check sensor set points.
2396	S1 CB Not Close	Utility contact (S1) failed to close with PTC enabled.	Warning	Refer to Section 5.
2397	S1 CB Not Open	Utility contact (S1) failed to open with PTC enabled.	Warning	Refer to Section 5.
240	LOW FUEL-DAY	Indicates day tank fuel supply is running low.	Warning	Check fuel supply and replenish as required.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

Adjusting Values/Parameters adjustment

⚠ If Home button or Previous Main Menu button is pressed before pressing save symbol, changes are not saved.

Press button next to symbol in display until + and − symbols are displayed.
Press button next to arrow symbols to move to numeric character to change.
Press button next to + symbol to increase value or select parameter.
Press button next to − symbol to decrease value or select parameter.
After adjusting values/selecting parameters, press symbol to save changes.

Convert Day Tank Controller 240 VAC to 120 VAC adjustment

Remove the two jumpers between terminals TB1-6 and TB1-7.
Connect one jumper between TB1-5 and TB1-6 and the other between TB1-7 and TB1-8.
Move selector switch S103 on the control PCB to the up position for 120V.
If equipped with a transformer, remove jumpers between H2 and H3 and connect one between H1 and H3 and the other between H2 and H4.

Day Tank Controller Conversion 240 VAC to 120 VAC adjustment

Remove the two jumpers between terminals TB1-6 and TB1-7 and connect one between TB1-5 and TB1-6 and the other between TB1-7 and TB1-8.
Move selector switch S103 on the control PCB to the up position for 120V.
On the control transformer, remove the two jumpers between terminals H2 and H3 and connect one between H1 and H3 and the other between H2 and H4.

Dip Adjustment adjustment

Turn the DIP pot clockwise to increase the voltage vs frequency slope for frequencies below the UFRO threshold.
Greater slope gives greater voltage roll off as frequency drops, easing large load pickup but increasing voltage dip.
Turn the pot fully counterclockwise to make the slope the same above and below the threshold frequency.

Dwell Adjustment adjustment

Turn the DWELL pot clockwise to increase dwell time (voltage recovery time when frequency dips below threshold).
Turn the DWELL pot fully counterclockwise to eliminate dwell.
With no dwell, voltage recovery follows engine speed recovery.

Electric Governor Controller Adjustments adjustment

⚠ If adjustment must be made while the unit is running, use extreme caution around hot manifolds and moving parts

Tools: Frequency meter

Move RUN/STOP/REMOTE switch to RUN and operate set at no load.
Confirm DROOP potentiometer adjust is set at zero position.
Set speed by adjusting the SPEED potentiometer to 50 or 60 Hz.
Adjust GAIN potentiometer clockwise until engine starts to hunt, then counterclockwise until speed is stable.
Adjust the 'B' potentiometer the same as GAIN.
Adjust the 'I' potentiometer to decrease overshoot above rated speed.
Apply 1/4 load and adjust the GAIN potentiometer again.
Apply full load to be certain the set will carry it; lengthen actuator linkage if it will not.

Fuel Pump Control: Convert 120 VAC to 240 VAC adjustment

Remove jumpers between TB1-5/TB1-6 and TB1-7/TB1-8; connect two jumpers between TB1-6 and TB1-7.
Move selector switch S103 on control PCB to down position for 240 VAC.
If equipped with a transformer, remove jumpers between H1/H3 and H2/H4 and connect two jumpers between H2 and H3.
Attach a tag to the control box indicating the supply voltage.

Fuel Pump Control: Convert 240 VAC to 120 VAC adjustment

Remove jumpers between TB1-6/TB1-7; connect one jumper TB1-5 to TB1-6 and one TB1-7 to TB1-8.
Move selector switch S103 on control PCB to up position for 120V.
If equipped with a transformer, remove jumpers between H2/H3 and connect one between H1-H3 and one between H2-H4.

Governor Adjustments (Type A Electric Governor) adjustment

Set selector switch S1 to OFF, S2 to appropriate model position.
Set pots initially: Gain 20%, I 20%, D 30%, Droop 0%.
Start set, adjust Speed pot for required frequency (60Hz=1800RPM or 50Hz=1500RPM) at operating temperature.
Disconnect load, turn Gain pot to 100% or until unstable, then back off until stable.
Adjust D and I pots similarly; readjust Speed if necessary.
Push throttle to minimum speed, release and observe overshoot (2-5 Hz acceptable); adjust I pot to reduce overshoot or hunting.

Initial Start Setup adjustment

⚠ Selecting this menu resets all operating parameters to default values; perform only by technically qualified personnel.

Press RESET, MENU and PHASE SELECT simultaneously to invoke the Initial Start Setup menu.
Toggle the Standby/Prime option.
Select the correct generator set model, frequency and kW rating.
Select the correct nominal line-to-line output voltage.
Select DELTA or WYE.
Select SAVE to save changes; MAIN MENU is then displayed.

Mechanical Governor Adjustment adjustment

Tools: Accurate frequency meter

Using an accurate frequency meter, measure frequency under full load.
Turn the speed adjustment screw on the governor to adjust to nominal 50 or 60 Hz.

Operating PowerCommand in Droop Mode adjustment

Set the no load speed and voltage at the desired level (bus must be de-energized or disconnect Bus PT module).
Apply 100% load and adjust KW load sharing gain for desired full load frequency; adjust KVAR load sharing gain for desired full load voltage.
Repeat the process for other generator sets in the system.
Test the system with all available load and verify approximately equal load sharing at no load and maximum load.

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Voltage reconnection

Voltage	Phase	Connection	Leads	Notes
		AVR response jumper	A to C	For generator output 90 kW or less (SX440 and MX321)
		Auxiliary terminal board TB21	K1, K2, P2, P3, P4, S2, S1, A2, A1	A1 and A2 connect a VAR/power factor controller when paralleling with a utility; S1 and S2 connect a droop compensating CT when paralleling with a generator set or utility
		CT1 - U load leads (A phase); CT2 - V load leads (B phase); CT3 - W load leads (C phase)	6 lead gensets: generator output leads routed through CTs; 12 lead gensets: load wires routed through CTs	12-lead sets have dual secondary CTs (3 pins); 6-lead sets have single secondary CTs (2 pins)
		Day tank LO SHUTDOWN engine shutdown connection	TB1-14 to engine block ground; TB1-15 to TB2-16 on the ECM
		Fault relay K8/K9 (Dry Contact Module)	K8=Over Crank, Low Oil Pressure, High Engine Temperature, Low Coolant Level, Low Fuel Level; K9=Low Fuel Level, Rupture Basin	Contact ratings: 40A max carry/break N.O. 12V coil, 30A N.C. 12V coil, 20A N.O./10A N.C. 24V coil
		MX321 PMG-excited jumper positions	2-3, 4-5 and 6-7	These jumpers must be in these positions
		MX321 voltage regulator frequency jumper	3-2 for 50 Hz; 3-1 for 60 Hz
		SX440 voltage regulator frequency jumper	C-50 for 50 Hz; C-60 for 60 Hz
		TB3 (ECM alternative RUN/STOP/REMOTE connection)	TB3-1=REMOTE, TB3-2=RUN, TB3-3=STOP	Provides alternative direct connection to ECM for troubleshooting or customer connection
		Voltage trimmer R21	voltage regulator terminals 1 and 2	There must be a jumper between terminals 1 and 2 when voltage trimmer R21 is not used
	single phase	QSG-Series power distribution panel voltage selector switch S1 position	main output terminals	Rotary switch under lockable cover selects 120/240 VAC single phase
	single phase	Voltage regulator terminal 6	jumpered to terminal 8	When the generator is connected for single-phase output, terminal 6 is not connected to the isolation transformer
	three phase	QSG-Series power distribution panel voltage selector switch S1 position	main output terminals	Rotary switch selects 120/208 VAC three phase
110V - 120V L-N	Single phase, 2-wire	Jumper locations for single phase, 2-wire		PTC Module AC wiring (0300-5382-01, -02)
120	single phase	Day tank fuel pump control power reconnection	move jumpers from TB1-6/TB1-7 to TB1-5/TB1-6 and TB1-7/TB1-8	Move selector switch S103 on the control PCB to the up position for 120 V (factory set for 240 V, S103 down)
190, 200, 208, 220, 230, 240, 380, 416, 440, 460, 600 (L-L)	3 (three phase)	3 or 4 wires		Voltage Configuration submenu; default = 3Ph 208V 4W
190V - 240V L-L	Three phase	Jumper locations for three phase, 190V-240V L-L		Use 0300-5382-01 for 190V-240V L-L, 50/60 Hz
200, 220, 230, 240 (L-L)	1 (single phase)	3 wires		Voltage Configuration submenu (Governor/Regulator Setup)
200V - 240V L-L	Single phase, 3-wire	Jumper locations for single phase, 3-wire		PTC Module AC wiring
24		Day tank fuel pump control logic power (two lead harness, no transformer)	TB1-19 to positive (+) 24 V starter motor solenoid; TB-20 to negative (-)	Provides 24 VDC for the control circuit
240	single phase	Day tank fuel pump control default factory connection	jumpers between terminals TB1-6 and TB1-7	Selector switch S103 on the control PCB in the down position for 240 V
380V - 600V L-L	Three phase	Jumper locations for three phase, 380V-600V L-L		Use 0300-5382-02 for 380V-600V L-L, 50/60 Hz

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What is the power rating of the Cummins/Onan DGCA?

The Cummins/Onan DGCA is rated 40 kW standby (50.0 kVA).

What engine does the Cummins/Onan DGCA use?

The Cummins/Onan DGCA is powered by the Cummins/Onan 4BT3.9Gl engine.

Is the Cummins/Onan DGCA diesel or gas?

The Cummins/Onan DGCA runs on Diesel.

What is the coolant capacity of the Cummins/Onan DGCA?

The Cummins/Onan DGCA cooling system holds 21 liters (5.5 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

How much oil does the Cummins/Onan DGCA take?

The Cummins/Onan DGCA has an engine oil capacity of 16 liters (16.9 US quarts), per the manufacturer specification sheet.

What is the prime power rating of the Cummins/Onan DGCA?

The Cummins/Onan DGCA is rated 32 kW prime (41 kVA), against 40 kW standby.

How much does the Cummins/Onan DGCA weigh?

The Cummins/Onan DGCA has a dry weight of 780 kg (1719 lb).

How big is the fuel tank on the Cummins/Onan DGCA?

The Cummins/Onan DGCA has a 25 liter (7 US gallon) fuel tank.

What voltages is the Cummins/Onan DGCA available in?

The Cummins/Onan DGCA is offered in 24 V, three-phase-phase.

How many cold cranking amps does the Cummins/Onan DGCA require?

The Cummins/Onan DGCA uses 2 batteryies, 12 V each, 1080 CCA, group 2, per the manufacturer specification sheet.

Which alternator is fitted to the Cummins/Onan DGCA?

The Cummins/Onan DGCA uses a UR alternator. It has 4 poles.

Troubleshooting

Symptoms & remedies

Symptom	Remedy
Generator does not start	Check the fault codes and refer to the troubleshooting table for specific issues. Ensure that all connections are secure, and the control panel is powered on.
Generator produces low voltage output	Refer to the fault codes and troubleshooting table for possible causes such as a faulty alternator or incorrect settings. Check the generator's load and ensure it is within the rated capacity.
Generator produces high voltage output	Refer to the fault codes and troubleshooting table for possible causes such as a faulty alternator or incorrect settings. Check the generator's load and ensure it is within the rated capacity.
Generator produces inconsistent voltage output	Refer to the fault codes and troubleshooting table for possible causes such as a faulty alternator or incorrect settings. Check the generator's load and ensure it is within the rated capacity.
Generator produces inconsistent frequency output	Refer to the fault codes and troubleshooting table for possible causes such as a faulty alternator or incorrect settings. Check the generator's load and ensure it is within the rated capacity.
Generator produces noise during operation	Refer to the fault codes and troubleshooting table for possible causes such as a faulty alternator or incorrect settings. Check the generator's load and ensure it is within the rated capacity.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DGCA troubleshooting guide (96 entries) →

Parts

119

Part #	Description	Qty	System
102-1147	Gasket, Drain-Oil Pan	1	Gasket	Amazon eBay
140-2159	Clamp, Hose	1	Hose clamp	Amazon eBay
140-2164	Nut, Square (1/4-20)	1	Nut	Amazon eBay KuduParts $10.00
150-2007	Guard. Belt Screw. Cap - Hex Head (1/2-13 X 2-1/4“)	1	Belt	Amazon eBay FridayParts $263.79 KuduParts $344.00
150-2201	Sensor, Speed – Magnetic	1	Sensor	Amazon eBay
187-0001	Pump, Water	1	Pump	Amazon eBay
187-0002	Gasket Kit, End - Top	1	Gasket	Amazon eBay
187-0008	Belt, Drive	4	Belt	Amazon eBay
187-0009	Belt, Drive	4	Belt	Amazon eBay
187-0011	Filter, Fuel	1	Fuel filter	Amazon
187-0013	Pump, Transfer-Fuel		Pump	Amazon eBay $100.99
187-0018	INJ. PUMP		Pump	Amazon eBay
187-0020	Thermostat	1	Thermostat	Amazon eBay
193-0244	Sender, Pressure - 0i1	1	Sensor	Amazon eBay
193-0353	Sender, Temperature - Oil	1	Sensor	Amazon eBay
193-0375	# Sender, Water Temperature	1	Sensor	Amazon eBay
234-0368	Hose, Rubber	1	Hose	Amazon eBay
300-3606	Voltage Regulator Installation (PMG-Excited Generators), Rev. P		Avr	eBay
300-3607	Voltage Regulator Installation (Self-Excited Generators), Rev. G		Avr	eBay
309-0269	Sender, Temperature-Lo Engine	1	Sensor	Amazon eBay $239.00
309-0272	Regulator, Voltage - 24 VDC (Used on 35 A MP Alternator)	1	Alternator	Amazon eBay
309-0561	Alternator & Drive Components Group Pulley. Alternator - Multi Groove (Use with 35 A MP Alternator)	1	Alternator	Amazon eBay
328876800	Belt, V-Grooved	1	Belt	eBay
353-0094-01	Connector Housing and Contact Pins, 8 Pin (Less Pins)	1	Connector	Amazon eBay
403-2575	Screw, Cap - Hex Head (1/2 - 13 x l")	1	Screw	Amazon eBay
405-3826-01	Support, Engine - Screw, Cap - Hex Head (M12 x 1.75 x 65mm)	1	Support	Amazon eBay
501-0441	Line, Fuel - Flex (Fuel In)	1	Hose	Amazon eBay
501-0502	Line, Fuel-Flex (Fuel Out)	1	Hose	Amazon eBay
503-0098	Hose, Oil Drain - Bulk (Order By The Foot - 3 Feet Required)	1	Hose	Amazon eBay
503-0183	Clamp, Hose	1	Hose	Amazon eBay
503-0197	Clip, Hose	1	Hose	Amazon eBay $7.99
503-0365	Clamp, Hose	1	Hose	Amazon eBay
503-0685	Clamp, Hose	1	Hose	Amazon eBay $15.00
503-0998	Clamp, Hose	2	Hose clamp	Amazon eBay
505-0059	Sensor, Water Pressure	1	Sensor	Amazon eBay
509-0125	Key, Handle - Screw, Lock (3/8 - 16 x .75")	1	Seal	Amazon eBay
625-2141	Day Tank Pump Control Wiring, Rev. P		Pump	eBay
750-1010	Screw, Machine - Fillister Head (1/4-20 x 1")	1	Screw	Amazon eBay
98-0961	Decal, Level - Water	2	Decals	Amazon eBay
M-1695	Oil temperature sender		Sensor	Amazon eBay
102-1237	Adapter, Drain-Oil	1	Service part / kit	Amazon eBay
151-0611	Control, Governor	1	Service part / kit	Amazon eBay FridayParts $249.00
155-2175	Clamp, Muffler 4"	1	Service part / kit	Amazon eBay
187-0007	INJ		Service part / kit	Amazon eBay
187-0012	Filter, Fuel	1	Service part / kit	Amazon eBay $149.89 NAPA $17.15
187-0015	Filter, Oil	1	Service part / kit	Amazon eBay $39.95
205-0089	Fan, Cooling-Generator	1	Service part / kit	Amazon eBay
220-4289-31	Main stator assembly (broad range generators)		Service part / kit	eBay
220-4289-32	Main stator assembly (broad range generators)		Service part / kit	eBay
220-4289-33	Main stator assembly (broad range generators)		Service part / kit	eBay
220-4289-34	Main stator assembly (broad range generators)		Service part / kit	eBay
220-4289-35	Main stator assembly (broad range generators)		Service part / kit	eBay
220-4298-31	Main stator assembly		Service part / kit	eBay
220-4298-32	Main stator assembly		Service part / kit	eBay
220-4298-33	Main stator assembly		Service part / kit	eBay
220-4298-34	Main stator assembly		Service part / kit	eBay
220-4298-35	Main stator assembly		Service part / kit	eBay
220-4298-36	Main stator assembly		Service part / kit	eBay
300-2810	Board - Engine Monitor (All) (Includes Fuses)	1	Service part / kit	Amazon eBay FridayParts $205.00
300-4111	Auxiliary Relay Board (ARB), Rev. E		Service part / kit	eBay
305-0823	# Model MX321	1	Service part / kit	Amazon eBay FridayParts $77.04
309-0553	Switch, Temperature-Pre Water	1	Service part / kit	Amazon eBay $127.46
309-0554	SWITCH WATER	1	Service part / kit	Amazon eBay $159.00
319-0969	QS-Series Power Distribution Panel Wiring, Rev. G		Service part / kit	eBay
323-1200	# Socket, Contact (Used in J1, J2)	1	Service part / kit	Amazon eBay
323-1304	tiotming, Umector	1	Service part / kit	Amazon eBay
323-1306	Genset component (SJB series)	1	Service part / kit	Amazon eBay
332-0051	Clamp, Loop	1	Service part / kit	Amazon eBay
332-0941	*Tie, Cable	2	Service part / kit	Amazon eBay
332-1279	Terminal. Lug - Ring (3/8	6	Service part / kit	Amazon eBay
332-1445	Tie, Cable 18 98-5219 1 Decal - Panel Front (Not I l l u s t r a t e d ) 19 98-5220 1 Decal	3	Service part / kit	Amazon eBay
332-2739	Bracket	1	Service part / kit	Amazon eBay
332-2921	Switch, Temperature - Washer, Lock (M8)	1	Service part / kit	Amazon eBay
337-0090	Strap, Electrical	1	Service part / kit	Amazon eBay
357-0030	# Rectifier, Silicon (CR2)	1	Service part / kit	Amazon eBay
416-0446	Cable, Battery - Jumper	1	Service part / kit	Amazon eBay
504-0011	Valve, Shutoff (1/2”)	1	Service part / kit	Amazon eBay $59.95
505-0026	Coupling, Pipe (1/8")	2	Service part / kit	Amazon eBay
505-0050	Elbow, Street (1/2' x 90 ° )	1	Service part / kit	Amazon eBay
505-0098	Band	1	Service part / kit	Amazon eBay
505-0104	Nipple, Pipe - Close	1	Service part / kit	Amazon eBay
505-0185	Nipple, Half (1/2' x 1.5' lg)	1	Service part / kit	Amazon eBay
526-0008	148-036’?	1	Service part / kit	Amazon eBay
526-0018	Gasket, Flange (1-3/4)	1	Service part / kit	Amazon eBay
526-0115	Washer (5/16 “)	1	Service part / kit	Amazon eBay
526-0196	Washer, Spacer - Shield JC)INT, BALL LINKAGE	0	Service part / kit	Amazon eBay
526-0238	Diode, Rectifier - Positive (CR1, CR2, CR3)	1	Service part / kit	Amazon eBay
526-0327	Control, Governor		Service part / kit	Amazon eBay
612-6487	7-Light DC Control Wiring Diagram, Sh 1 and 2 of 2, Rev. V		Service part / kit	eBay
612-6488	12-Light DC Control Wiring Diagram, Sh 1 and 2 of 2, Rev. W		Service part / kit	eBay
612-6489	AC Control Wiring Diagram (Without Meters), Rev. S, modified 6/2001		Service part / kit	eBay
612-6490	AC Control Wiring Diagram (With Meters), Rev. ZB, modified 1/2002		Service part / kit	Amazon eBay
625-2164	Generator Reconnection Diagrams, Sh 1 and 2 of 2, Rev. K		Service part / kit	eBay
625-2256	QS-Series Generator Connections When The Voltage Selector Switch Is Provided, Rev. B		Service part / kit	eBay
800-0012	Screw, Cap - Hex Head (1/4-20 x 2-1/4”) Begin Spec C MANIFOLD KIT, INTAKE	2	Service part / kit	Amazon eBay
800-0048	Screw, Cap - Hex Head (3/8-16 x 3/4”)	1	Service part / kit	Amazon eBay
800-2060	Screw, Cap - Hex Head (M8x 1.25 x35)	1	Service part / kit	Amazon eBay
800-2110	Hood, Inlet - Air Molded	1	Service part / kit	Amazon eBay
800-2112	Screw. Cap - Hex Head (M12 x 30nin)	2	Service part / kit	Amazon eBay
812-0075	Screw-RHM(8-32xl/4)	5	Service part / kit	Amazon eBay
813-0103	Screw, Machine - Round Head (#10-32 x 3/4º)	2	Service part / kit	Amazon eBay $19.00
815-0172	Cover, Adapter Outlet	1	Service part / kit	Amazon eBay
821-0018	Screw, Self-locking - Hex Washer Head ( 1'4.20 x 5 8')	1	Service part / kit	Amazon eBay
850-0025	Screw, Machine - Round Head (#8-32 x 3/8" )	2	Service part / kit	Amazon eBay
850-0030	Washer, Lock - Spring (#10)	1	Service part / kit	Amazon eBay
850-0050	Washer, Lock - Spring (3/8”)	2	Service part / kit	Amazon eBay
850-2006	Washer, Lock - Spring (M6)	1	Service part / kit	Amazon eBay
850-2008	Washer, Lock (M8)	1	Service part / kit	Amazon eBay
850-2012	Washer, Lock - Spring (M12)	3	Service part / kit	Amazon eBay
856-0013	Washer, Lock - W/EIT (1/2)	1	Service part / kit	Amazon eBay
860-2007	Circuit Breaker Used With Westinghouse Circuit Breaker	1	Service part / kit	Amazon eBay
862-0004	4 ttNut, Hex - Set Mounting - Key 2 HARDWARE SET, SET MOUNTING	1	Service part / kit	Amazon eBay $5.99
863-0002	Cleaner, Air (Includes Element)	2	Service part / kit	Amazon eBay
870-0053	Nut, Hex (s10-32)	1	Service part / kit	Amazon eBay
870-0131	Nut. Hex - with ET (#10-32)	1	Service part / kit	Amazon eBay
870-0212	Nut, Locking (1/4-20)	2	Service part / kit	Amazon eBay
871-0010	Nut, Hex - Srass (#10-32) Washer, Lock - EIT (#10) Washer, Lock - IT (#10)	8	Service part / kit	Amazon eBay
871-0028	NUT	1	Service part / kit	Amazon eBay
960-0136	Battery, 24V, 55Ah, AGM	8	Service part / kit	Amazon eBay

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%	11.0	2.9

Available documents

Spec sheet — 4BT3.9 (Cummins/Onan)Operator's manual — 960-0107 Cummins DGBB DGCB DGDB DGFA Operator's Manual (7-2009) (Cummins/Onan)Operator's manual — 960-0136 Onan DGCA DGCB DGDA DGDB Operator's Manual (8-1987) (Onan)Operator's manual — 960-0615C Cummins DGBB DGC DGFA Series Operator's Manual (10-2003) (Cummins/Onan)Operator's manual — Cummins-DGBB-DGBC-DGCA-DGCB-DGCG-DGFA-DGFB-DGFC-DGFS-operator-manual (Cummins/Onan)Parts manual — 0932-0112 Onan Post-Sale Literature Index (07-1998) (Cummins/Onan)Parts manual — 0960-0210 I8 201512 (Cummins/Onan)Parts manual — 0960-0242 I1 198805 (Cummins/Onan)Parts manual — 960-0231 Onan DGB DGC Parts Manual (6-1993) (Cummins/Onan)Parts manual — 960-0242 Onan DGCA DGCB Parts Manual (5-1988) (Cummins/Onan)Service manual — 900-0524B Onan DGxx Power Command Control 3100 Series Paralleling Gensets Operation & Service manual (01-2002) (Cummins/Onan)Service manual — 960-0505 Onan DGxx QSxx Detector Controls Generator Set Service Manual (04-2001) (Cummins/Onan)Service manual — 960-0510B Onan DGBB thru DGFC Series Service Manual (10-1998) (Cummins/Onan)Service manual — 960-0511B Cummins DGBB DGC DGD DGF Series Service Manual (10-2001) (Cummins/Onan)Service manual — 960-0518D Cummins DGBB DGC DGDA DGFB Series Service Manual (2-2004) (Cummins/Onan)Service manual — 960-0618D Cummins DGBB DGCA DGEA DGFA Series Installation Manual (10-2001) (Cummins/Onan)Service manual — 960-0628D Cummins DGB DGC DGF Series Installation Manual (2-2004) (Cummins/Onan)Service manual — DG Generator Set Service Manual PCC 3100 (Cummins/Onan)

This page was generated from the 18 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

Cummins/Onan DGCA Generator Set

Service parts for the DGCA

Belts

Specifications

Engine

Maintenance & consumables

Service intervals

Service specifications

Recommended fluids

Fault codes

Procedures

Voltage reconnection

Common questions

Troubleshooting

Symptoms & remedies

Repair guides

Parts

Fuel consumption

Available documents