Kohler — Generator Reconnection (Voltage Change)
Installation · Generator Output Connections
From a Kohler service manual covering: CSG-649, Cummins 4B, Cummins 6B, Ford CSG-649, Ford LSG-423, Ford LSG-875, LSG-423, lsg-875. Check it applies to your exact model before use.
Applies to: Ford CSG-649, Cummins/Onan LSG-423, Cummins/Onan lsg-875
Before you start
- ELECTRICAL SHOCK! Remove rings, watches and jewelry. Disconnect ground lead first and reconnect it last.
- EQUIPMENT DAMAGE! Be sure line circuit breakers, transfer switch and other accessories using line voltage are properly sized for the voltage selected.
Procedure
- Move controller Master Switch to OFF/RESET or OFF position.
- Disconnect engine starting battery, negative (-) lead first.
- Select desired voltage connection from Figure 5-1.
- Route leads through current transformers and connect leads per diagram for desired voltage.
- If controller is equipped with meters, reposition meter scale lamp jumper to match proper position for desired voltage.
- Turn phase selector switch to L1-L2 position (1/12 or 3/36 depending on generator connection); if no meters, connect voltmeter across L1-L2.
- Reconnect starting battery. Move controller master switch to TEST position to start; check voltmeter for proper voltage; adjust with voltage adjust/regulator rheostat.
Tools required
- Voltmeter Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Full service-parts list: Ford CSG-649 →, Cummins/Onan lsg-875 →
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.