Kohler — Notched V-Belt Adjustment (KD2000-KD4000)
Adjustments · Fan drive belts
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
- Disable generator set and remove from service.
- Remove fan guard rear face panel; inspect fan drive belt and replace if damaged or worn.
- Check fan belt tension using sonic tension meter or belt deflection method.
- Loosen four 3/4 in. undercarriage bolts.
- Adjust tensioner pulley along tensioner slots via lead screw.
- Adjust until belt tension falls into range listed in Figure 24.
- Check pulley alignment on fan shaft; adjust fan sheaves and tensioner sheaves.
- Tighten 3/4 in. undercarriage bolts; reinstall belt guards; reconnect battery; test run.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- See Figure 24 for belt tension and deflection ranges
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.