Kohler — Verify Paralleling and Load Sharing
Testing & diagnosis · Paralleling system
From a Kohler service manual covering: 125REZGT, 145REOZT4, 175REOZT4, 30REZG, 35 REOZT4, 45 REOZT4, 50REZG, 55REOZT4, 70REZGT, GM88594-KP1-QS, REOZT4. Check it applies to your exact model before use.
Applies to: Kohler 125REZGT, Kohler 145REOZT4, Kohler 175REOZT4, Kohler 30REZG, Kohler 35 REOZT4, Kohler 45 REOZT4, Kohler 50REZG, Kohler 55REOZT4, Kohler 70REZGT
Procedure
- Place all generators in automatic mode by pressing the Auto button; verify the red shutdown indicator is not illuminated.
- Provide a local start request by holding AUTO, pressing RUN, releasing RUN, then releasing AUTO.
- Verify all generators start, one generator closes its contactor, and the others synchronize and close their contactors.
- Verify that the % of rated power of the generators matches, showing the generators are sharing load equally.
- If a load bank is available, test the system under load.
Tools required
- Load bank (optional) Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Kohler 125REZGT →, Kohler 145REOZT4 →, Kohler 175REOZT4 →, Kohler 30REZG →, Kohler 35 REOZT4 →, Kohler 45 REOZT4 →, Kohler 50REZG →, Kohler 55REOZT4 →, Kohler 70REZGT →
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.