Kohler — Cooling System Checklist
Testing & diagnosis
From a Kohler service manual covering: 10REOD, 10REOZD, 15REOD, 15REOZD, 20REOD, 20REOZD. Check it applies to your exact model before use.
Applies to: Kohler 10REOZD, Kohler 15REOZD, Kohler 20REOZD
Before you start
- Shut down immediately if problems arise during startup
- Recheck belt tension after 5-10 minutes and again after 8-12 hours of operation
Procedure
- Verify cooling fan position in fan shroud
- Check mounting hardware
- Check fan motor for free rotation
- Check V-belts for alignment and tension
- Fill system with coolant and check all connections for tightness and leaks
- Verify electrical connections secure and power source matches motor nameplate
- Verify no foreign material loose in fan air stream
- With unit running check fan clearance, excessive vibration, excessive noise, coolant leaks
Full service-parts list: Kohler 10REOZD →, Kohler 15REOZD →, Kohler 20REOZD →
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.