Specifications
| Fuel | gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 5 kW |
| Prime power | 5 kW |
| Voltage options | 110 V, 115 V |
| Phase | single |
| Battery voltage | 12 V |
| Battery quantity | 1 |
Maintenance & consumables
for the Continental Red Seal| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Oil bath air cleaner | — | find | ||
| Fuel filter | Fuel pump filter screen | — | find | ||
| Oil filter | Filter element cartridge | — | find | ||
| Coolant | Engine coolant for radiator | 11.0 quarts | — | ||
| Oil | Undiluted engine oil for crankcase | 3.0 quarts | — | 50 hr |
Common questions
What is the power rating of the Cummins/Onan 5KW GO?
The Cummins/Onan 5KW GO is rated 5 kW standby.
What engine does the Cummins/Onan 5KW GO use?
The Cummins/Onan 5KW GO is powered by the Continental Red Seal engine.
What fuel does the Cummins/Onan 5KW GO use?
The Cummins/Onan 5KW GO runs on gasoline.
Troubleshooting
22Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Generator overheating | Overloaded. Brush rig out of position. | Reduce load. Be sure to line up marks. See Brush Rig. |
| Voltage drops under heavy load | Engine lacks power. See remedies for engine mising under heavy load. Poor compression. Tighten cylinder head and spark Plugs. If still not corrected, grind the valves. Replace piston rings, if necessary. | See MAINTENANCE AND REPAIR. |
| Engine misfires at light load | Carburetor idle adjustment set wrong or clogged. Spark plug gaps too narrow. Adjust to correct gap. Refer ta TABLE OF CLEARANCES. Intake air leak. Tighten or replace gaskets. Faulty ignition. Clean, adjust, or replace breaker points, plugs, condenser, coil, etc., or retime ignition, Uneven compression. Tighten cylinder head and spark plugs. If still not corrected, grind valves. Replace piston rings, if necessary. | |
| Engine misfires at all loads | Fouled spark plug. Defective or wrong spark plug. Sticking valves. Broken valve spring. Defective ignition wires. Defective or improperly adjusted paints. | Clean and adjust, Replace, Clean stems and guides. Replace. Adjust or replace breaker points. See Periodic Service - Weekly. |
| Low oil pressure | Too long screw on center main bearing. Oil too light. Oil badly diluted. Oil level too low. Oil relief valve not seating. Badly worn bearings. | See MAIN BEARINGS. Drain, refill with proper oil. See PREPARATION. Drain, refill with proper oil. Add oil. Remove and clean, or replace. See LUBRICATION SYSTEM. Replace. See MAINTENANCE AND REPAIR. |
| Plant starts but does not continue to run | START button released too soon. Defective panel equipment. | Hold in contact longer. See Controls. |
| Engine backfires at carburetor | Lean fuel mixture. Clogged fuel screen. Intake air leak. Poor fuel. Spark too late. Spark plug wires crossed. Intake valves leaking. | Clean carburetor. Clean screen. Replace flange gaskets, tighten carburetor. Refill with good, fresh fuel. Retime ignition. See IGNITION TIMING. Install wires correctly. See IGNITION TIMING. Grind or replace. See VALVE SERVICE. |
| Excessive oil consumption, light blue smoky exhaust | Worn piston rings, Install new piston rings. See PISTON RING REPLACEMENT. | |
| Oil leaks from engine or connections | This does not cause smoky exhaust, e.g., oil leaks from engine or connections. Replace gaskets or leaking tubing. Tighten screws and connections. | |
| Oil too light or diluted | Drain, refill with correct oil. See PREPARATION. | |
| Too large bearing clearances | Replace bearings. See MAIN MAINTENANCE AND REPAIR. | |
| Oil pressure too high | Refer to symptoms of high oil pressure for remedies. | |
| Breather cap clogged | Clean-See CRANKCASE VENTILATION. | |
| Engine runs but current does not build up | Poor brush contact or dirty commutator or slip rings. | See that brushes seat well, are free in holders, are not worn too short, and have good spring tension. Open circuit, short circuit, or ground in generator. See GENERATOR, replace part necessary. |
| Current steady but engine not misfiring | Speed too low. | Adjust governor to correct speed. |
| Tapping sound | Tappet clearance too great. | Adjust or replace tappets. |
| Hollow clicking sound with cool engine under load | If noisy only slight and disappears when engine warms up, ho immediate attention needed. Otherwise replace worn parts. | Loose pistons. |
| Voltage low at far end of line but normal near power unit | Too small line wire for load and distance. | Install larger or extra wires or reduce load. |
| Motors run too slowly and overheat at far end of line but ok near power unit | Too small line wire for load and distance. | Install larger or extra wires, or reduce load. |
| Noisy brushes | High mica between bars of commutator, ATOR. | Undercut mica. See GENERATOR. |
| Excessive arcing of brushes | Rough commutator or rings. | Turn down, Clean. See GENERATOR. |
| Engine overheating | Low water in radiator. | Refill radiator. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Available documents
Service manual — 903-0000 Onan 5KW GO Genset Operator's & Service manual (1945) (Cummins/Onan)