Kohler 10CC / 10CCOZ-Mobile — Voltage Regulator Adjustment
Adjustments · PowerBoost V voltage regulator
For the Kohler 10CC / 10CCOZ-Mobile, from the Kohler service manual.
Applies to: Kubota V1305BG-2 engine
Before you start
- Hazardous voltage can cause severe injury or death. The heat sink of the voltage regulator contains high voltage.
Procedure
- Turn Voltage, Volts/Hz, and Stability pots fully counterclockwise; connect voltmeter to AC circuit or outlet.
- Start generator set. Rotate Voltage Adjustment pot clockwise or counterclockwise until desired output voltage is achieved.
- Rotate Stability pot clockwise until minimum light flicker is obtained.
- Readjust Voltage Adjustment pot if necessary.
- Adjust engine speed to desired cut-in frequency (57.5-58 Hz for 60 Hz models).
- Rotate Volts/Hz Adjustment pot clockwise until voltage level begins to drop.
- Readjust engine speed to normal (63 Hz/1890 rpm for 60 Hz models).
- Readjust Voltage Adjustment pot and Stability pot if necessary.
- Stop generator set.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Voltage Adjustment pot range 190-270 Volts (line-to-line)
- Volts/Hz factory setting 57.5 Hz on 60 Hz models
- Normal 63 Hz/1890 rpm for 60 Hz models
Full service-parts list: Kubota V1305BG-2 engine →
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.