The Cummins Onan LSG-423 generator is listed with standby output of 10 kW, Natural Gas, Propane fuel, 60 Hz operation, 12 V output, Single phase, and rated current of 65 A.
Generator • Natural Gas, Propane • 60 Hz • Single phase
Key specifications
Useful generator charts
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How the Cummins Onan LSG-423 compares
This compares the supplied numeric specification with Cummins Onan generators in the same broad standby-power class where enough comparable data exists.
About 60% above the similar-output Cummins Onan average. Around the 76th percentile for this field.
About 114% above the similar-output Cummins Onan average. Around the 92nd percentile for this field.
About 35% above the similar-output Cummins Onan average. Around the 70th percentile for this field.
Generator information
| Manufacturer | Cummins Onan |
|---|---|
| Model | LSG-423 |
| Generator type | Generator |
| Fuel | Natural Gas, Propane |
| Frequency | 60 Hz |
Electrical output
| Standby power | 10 kW |
|---|---|
| Voltage options | 12 V |
| Phase | Single phase |
| Rated current | 65 A |
Engine, cooling and controls
| Engine model | Onan Modified Ford 4-cyl. |
|---|---|
| Engine oil capacity | 1.19 gal (4.5 L) |
| Engine coolant capacity | 3.04 gal (11.5 L) |
| Oil capacity | 1.06 gal (4 L) |
| Coolant capacity | 2.91 gal (11 L) |
Battery
| Battery voltage | 12 V |
|---|
Maintenance and service parts
| Engine oil | Interval: 200 hr; Specification: Check the engine oil level during engine shutdown periods at the intervals specified in the Maintenance Table. |
|---|---|
| Oil filter | Interval: 200 hr; Specification: Run engine until thoroughly warm before draining oil. Stop the set, place a pan under the drain outlet and remove the oil drain plug or open the drain valve. After the oil is completely drained, replace the drain plug or close the drain valve. Refill with oil of the correct API viscosity grade for the temperature conditions. |
| Fuel filter | Specification: Spin 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). |
| Air filter | Interval: 200 hr; Specification: To Service the Air Cleaner:1. Loosen clamps and remove air cleaner housing end cap.2. Remove the air filter element from the filter housing.3. To clean, blow low pressure compressed air (30 psi/207 kPa) through the element from the clean side. Hold the nozzle at least 1 inch (25 mm) away to avoid damaging the element.4. Soak the filter for at least 15 minutes in water and Donaldsons D1400 solvent to remove soot, carbon and dirt.5. Rinse with clean water (low pressure) and allow to air dry. Do not blow dry with compressed air. Reinstall when the filter element is dry. Replace the filter after two cleanings to avoid restricting the airflow. |
| Coolant | Interval: 90 hr; Specification: Check the coolant level during shutdown periods at the interval specified in Table 5-1. Use a 50/50 coolant solution (50% pure water and 50% antifreeze). Always keep level in the coolant recovery tank between low and full.; Capacity: 11.0 L |
| Belt | Interval: 90 hr; Specification: An 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. |
Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Cummins North America generator website.