Kohler 4CKM Service Bulletin

6
SB-555 5/96
Overspeed Adjustment
The governor control contains a circuit which will
de-energize the carburetor fuel solenoid (AD) if the
generator exceeds the overspeed setting.
SPEED
TP-5572-6
Figure 9. Speed Potentiometer
D DonotusetheSpeedPot tochecktheoverspeed
shutdown setpoint. See Figure 9.
D Disconnect all loads from the generator when
adjusting the overspeed cutout.
1. Connect a frequency meter to the generator output.
2. Turn Overspeed Pot counterclockwise to max.
overspeed cut-out point. See Figure 10.
OVERSPEED
TP-5572-6
Figure 10. Overspeed Potentiometer
3. While observing the frequency meter, manually turn
the governor actuator shaft until frequency reaches
the desired cut-out speed.
NOTE
Do not exceed 72 Hertz
4. While keeping the generator at the desired cut-in
speed,slowlyturnOverspeedPotclockwiseuntilunit
shuts down. See Figure 11.
OVERSPEED
TP-5572-6
Figure 11. Overspeed Potentiometer
NOTE
If OverspeedPot is adjustedtoo low, theenginemay shut
down on startup because of governor overshoot.

Kohler 4CKM Specifications

General

Brand	Kohler
Model	4CKM
Category	Inverter
Language	English