Kohler — Cooling System Drain
Maintenance
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
- Hot coolant and steam. Stop generator set and allow to cool before removing pressure cap.
Procedure
- Disable generator set and remove from service.
- Allow engine to cool.
- Remove pressure cap to allow system to drain and prevent air pockets.
- Open radiator and/or engine block coolant drain valve(s) and allow system to drain.
- On KD2000-KD4000, use engine drainage ports to drain coolant from water pumps and oil cooler.
- If radiator has mineral deposits or coolant contains dirt/grease, flush and clean cooling system.
- Otherwise proceed to refill cooling system.
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.