Kohler L600 / L654 — Belt Tension Adjustment and Belt Replacement

Maintenance · Fan / water pump belt

For the Kohler L600 / L654, from the Kohler service manual.

Applies to: Kohler L600 engine

Procedure

1. Adjust belt so it can be depressed about 1/2 to 1 inch in center of the longest span between pulleys.
2. L600 with adjustable pulley: loosen nuts on pulley hub and move hub in closer to increase tension or away to decrease tension; retighten nuts.
3. To replace belt on L600, remove belt guard and loosen pulley hub until belt can be slipped off the pulleys.
4. L654 radiator models: loosen the two mounting capscrews and shift plate out to increase tension or in to decrease tension; move plate all the way in to remove a bad belt; retighten capscrews.
5. Marine models: remove belt guard, loosen adjusting plate capscrews, shift plate for proper tension, retighten and replace belt guard.

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.

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