Kohler — Mechanical Governor Frequency Adjustment - Diesel Engines
Adjustments
From a Kohler service manual — check it applies to your exact model before use.
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Procedure
- Start the generator set, observe the frequency meter.
- Loosen the fuel pump high speed screw locknut to make the adjustments.
- To increase or decrease the frequency (at no load), rotate the screw clockwise or counterclockwise respectively. Tighten the locknut.
- Loaded droop frequency may alternately be adjusted to the operating frequency at full load.
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.