Kohler — ON Load Test
Operation · Generator set
From a Kohler service manual covering: KD1250-4, KD1750, KD2000, KD2500, KD3250, KD4000, KD700-KD4000, TP-7143. Check it applies to your exact model before use.
Applies to: Kohler KD1250-4, Kohler KD1750, Kohler KD2000, Kohler KD2500, Kohler KD3250, Kohler KD4000
Before you start
- Hazardous voltage. Moving parts. Operate only when all guards and electrical enclosures are in place.
Procedure
- Operate generator set under load for 30–60 minutes maintaining exhaust temperature at rated kW.
- Apply voltage and check for alarms or faults.
- Check for leaks, vibrations, or abnormal noises.
- Ensure exhaust gas color is normal.
- Check engine parameters (oil pressure, coolant temperature).
- Check electrical parameters (voltage, frequency, current, rotating magnetic field).
- If fitted, check automatic filling devices (fuel or oil).
Full service-parts list: Kohler KD1250-4 →, Kohler KD1750 →, Kohler KD2000 →, Kohler KD2500 →, Kohler KD3250 →, Kohler KD4000 →
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.