Kohler — Reactive Droop Compensator Alternate Adjustment Procedure

Adjustments

From a Kohler service manual covering: 125REOZJG, 150 REOZJ4, 150REZG, 175REOZT4, 2000REOZM, 2000REOZMD, 2250REOZDD, 275REOZJD, 275REOZJE, 400REZX, 400RZX, 48REOZK4…. Check it applies to your exact model before use.

Applies to: Kohler 125REOZJG, Kohler 150 REOZJ4, Kohler 150REZG, Kohler 175REOZT4, Kohler 2000REOZM, Kohler 2000REOZMD, Kohler 2250REOZDD, Kohler 275REOZJD, Kohler 275REOZJE, Kohler 400REZX, Kohler 400RZX, Kohler 48REOZK4

Procedure

1. Turn reactive droop compensator rheostat on generator set no. 1 to minimum setting.
2. Remove controller cover; move voltage sensing lead from V7 to V9 at the AC fuse terminal block.
3. Remove any load connected to the generator set.
4. Start the generator set with master switch in RUN.
5. Use controller or remote voltage adjusting potentiometer to fine adjust voltage.
6. Apply resistive load (1.0 power factor) until reaching rated current.
7. Adjust reactive droop compensator rheostat to achieve a 4% droop in voltage.
8. Remove the resistive load and stop the generator set.
9. Return voltage sensing lead from V9 to V7 at the AC fuse terminal block.
10. Replace the controller cover and repeat for generator set no. 2.

Full service-parts list: Kohler 125REOZJG →, Kohler 150 REOZJ4 →, Kohler 175REOZT4 →, Kohler 2000REOZM →, Kohler 2000REOZMD →, Kohler 2250REOZDD →, Kohler 275REOZJD →, Kohler 275REOZJE →, Kohler 48REOZK4 →

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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