Kohler 14RCA / 20RCA — 12-Lead Generator Reconnection Procedure
Installation · Stator leads / alternator
For the Kohler 14RCA / 20RCA, from the Kohler service manual.
Applies to: Kohler 14RCA, Kohler 20RCA, Kohler CH740 (14 kW models); CH1000 (20 kW models) engine, Kohler CH 740 engine, Kohler CH1000 engine
Before you start
- Hazardous voltage. Disconnect all power sources before opening the enclosure.
Procedure
- Press the OFF button on the RDC2 controller.
- Disconnect the engine starting battery, negative lead first.
- Disconnect utility power to the generator set.
- Remove the circuit breaker cover and the controller panel to access the alternator leads and CTs.
- Replace the circuit breaker with the correct part for the new voltage rating.
- Select the desired voltage connection and connect the leads per the diagram.
- Reconnect the engine starting battery, negative lead last.
- Check system voltage, frequency, and phase settings and change them if necessary.
- Connect a digital multimeter (DVM) to the generator set output.
- Press RUN to start the generator set.
- Use a voltmeter to check for the correct voltage output; calibrate the RDC2 voltage if necessary.
- Press OFF to stop the generator set.
- Reconnect utility power to the generator set.
- Press AUTO to place the generator set in automatic mode.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Replace the line circuit breaker when changing the voltage configuration
- Affix voltage reconnection decal 246242 Amazon eBay $9.67 after reconnecting
Full service-parts list: Kohler 14RCA →, Kohler 20RCA →
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.