HomeCummins/OnanCummins/Onan 10 GEAD

Cummins/Onan 10 GEAD Generator Set

The Cummins/Onan 10 GEAD is a 10 kW (22.5 kVA) Natural Gas, Propane standby generator set powered by a Onan Modified Ford LSG-423 (Turbocharged) engine. It is available at 12 V, Single Phase-phase and 60 Hz. It holds about 4.36 L (1.2 gal) of oil and 1.15 L (0.3 gal) of coolant.

10 kW
Standby
4.36 L
Oil capacity
1
Document types

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Specifications

FuelNatural Gas, Propane
Frequency60.0 Hz
Standby power10 kW
Oil capacity4.36 L
Voltage options12 V
PhaseSingle Phase

Engine

Onan Modified Ford LSG-423 (Turbocharged)
Oil capacity1.15 L
Coolant capacity1.15 L
AspirationTurbocharged

Maintenance & consumables

for the Onan Modified Ford LSG-423 (Turbocharged)
ItemSpecCapacityPart #Interval
Air filterThe engine air intake components should be checked at the interval indicated in Table 5-1. The frequency of cleaning or replacing air cleaner filter elements is primarily determined by the conditions in which the genset operates. The standard air cleaner contains a paper cartridge filter element which can be cleaned and reused if not damaged, or discarded and replaced.90 hr find
Fuel filterCheck for dirty fuel filter and replace if necessary (see Maintenance section). find
Oil filterSpin off oil filter and discard it. Thoroughly clean filter mounting surface. Apply a thin film of oil to filter gasket and install new element. Spin element on by hand until gasket just touches mounting pad and then turn an additional 1/2 to 3/4 turn. Do not over-tighten (Figure 5-2). With oil in crankcase, start engine and check for leaks around filter element. Retighten only as much as necessary to eliminate leaks but do not overtighten.200 hr find
BeltAn improperly adjusted fan belt can cause engine overheating and insufficient battery charging. Push on the fan belt in the middle and check that it deflects no more than 0.5 in. (13 mm) under a load of 15 lbs. (67 N). If belt is loose, loosen the two bolts on the battery charging alternator and adjust until proper tension is obtained. Retighten alternator bolts after adjustment. find
Coolant filter find
OilCheck the engine oil level during engine shutdown periods at the intervals specified in the Maintenance Table. The dipstick is stamped with FULL and ADD to indicate the level of oil in the crankcase. For accurate readings, shut off the engine and wait approximately 10 minutes before checking the engine oil level.

Common questions

What is the power rating of the Cummins/Onan 10 GEAD?

The Cummins/Onan 10 GEAD is rated 10 kW standby.

What engine does the Cummins/Onan 10 GEAD use?

The Cummins/Onan 10 GEAD is powered by the Onan Modified Ford LSG-423 (Turbocharged) engine.

What fuel does the Cummins/Onan 10 GEAD use?

The Cummins/Onan 10 GEAD runs on Natural Gas, Propane.

What is the oil capacity of the Cummins/Onan 10 GEAD?

The Onan Modified Ford LSG-423 (Turbocharged) engine in the Cummins/Onan 10 GEAD has an oil capacity of 1.15 liters.

Troubleshooting

14

Fault codes

CodeMeaningCauseRemedy
PRE HET/LOPPRE HET/LOP lamp lights. Engine continues to operate.Engine has begun to overheat and engine temperature has risen to approximately 205°F (97°C) or coolant level is low.A. Reduce load if possible by turning off non-critical loads. b. Check air inlets and outlets and remove any obstructions to airflow. 2B. Indicates engine oil pressure has dropped to 30 psi (207 kPa). If generator is powering critical loads and cannot be shut down, wait until next shutdown period and then follow step 4. If engine can be stopped follow procedure in Steps 3 and 4.
ENG TEMPHl ENG TEMP lamp lights. Engine shuts down.Engine has overheated (engine temperature has risen above 215°F/102°C) or coolant level is low.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 if none of the above.
LO OIL PRES4, LO OIL PRES lamp lights. Engine shuts down.NOTE: See also step 5. a. 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 40 to 65 psi (275 to 448 kPa).
OVERCRANK5. OVERCRANK lamp lights and engine stops cranking.A. Check for empty fuel tank (LPG Vapor), fuel or leaks, or plugged fuel lines and correct as required.
LO OIL PRESEngine runs, shuts down, and LO OIL PRES lamp lights.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.
OVERSPEED6. Engine runs and then shuts down, OVERSPEED lamp lights.Indicates engine has exceeded normal operating speed. Contact an authorized service center for service.
SWITCH OFF7. 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 FUEL8. LO FUEL lamp lights. Engine continues to run....Or to a propane fuel supply (if not already connected).Move the selector switch on the governor mounting LO FUEL lamp lights. Engine shuts down and LO OIL PRES lamp lights.
OVERLOAD9. The OVERLOAD lamp lights. Engine shuts down.The line circuit breaker is located in the ATS or generator set output box. If load exceeds generator current rating, the breaker will trip preventing the generator from being overloaded. Locate the source of overload and correct as necessary. Manually reset breaker to reconnect the load to the generator.
O/U VOLTAGE10. The O/U VOLTAGE lamp lights. Engine shuts down.Contact an authorized service center for service.

Symptoms & remedies

SymptomCauseRemedy
Green RUN lamp lights following engine startup.Indicates all engine systems are normal. No corrective action required.
11. Fault lamp lights but no fault exists.The monitor board or a sensor may be at fault.Contact an authorized service center for service.
The engine does not start after three full cranking cycles.Place the Run-Stop-Remote switch in the STOP position and momentarily depress the Reset switch. Wait two minutes for the starter motor to cool and then repeat the starting procedure.
The engine does not run after a second attempt at starting.Refer to the Troubleshooting section.

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
FS-1176sGAS MIXERGas mixer PartsGeek
LS1169sENGINE OIL FILTEROil filter 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.

Available documents

Service manual — 928-0128 Onan 10-30 GEAD GEAE GEAF Operator's Manual (5-1994) (Cummins/Onan)

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