Kohler 4CKM Service Bulletin

7
SB-555 5/96
Condition (Fault) Result
Loss of pickup while running
Throttle moves to closed position and fuel shut-off solenoid de-energizes
(genset shutdown)
Engine overspeed Fuel shut-off solenoid de-energizes (genset shutdown)
Break of fuel shut-off solenoid lead Fuel shut-off solenoid de-energizes
Loss of DC power to governor assembly Fuel shut-off solenoid de-energizes (genset shutdown)
Break of stepper motor leads Erratic performance then fuel shut-off solenoid de-energizes (genset shutdown)
Actuator linkage failure Erratic performance then fuel shut-off solenoid de-energizes (genset shutdown)
Figure 12. Electronic Governor Fault Shutdown Conditions and Results
1
2
3
4
5
6
1
2
3
4
5
6
16
17
9
10
16
17
9
10
1
2
3
4
1
2
3
4
P9 J9 P4 J4 P7 J7
WHT.
YEL.
BLK.
RED
GRN.
BLU.
M2
M4
M3
M1
M2
M4
M3
M1
GOVERNOR
ACTUATOR
10
N
10
11 11
7 7
11
13
11
13
MP
MP
MAGNETIC
PICKUP
CARB.
1 1
9 9
6 6
ADAD
AD
MP
MP
70
70
B+
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
17 18 19 20
1234
8 7 6 5
12 11 10 9
16 15 14 13
20 19 18 17
1 2
3 4
5 6
2 1
4 3
6 5
123
6 5 4
9 8 7
12 11 10
TP-5572-6
Figure 13. Electronic Governor Schematic (Typical)
Schematic Line
GOVERNOR
MP
MP
MP
STM
BLACK
YEL
GREEN
P6--5
SPEEDGAINOVER
SPEED
ELECTRONIC
GOVERNOR BOARD
MAGNETIC
PICKUP
SENSOR
YELLOW
WHITE
BLACK
GREEN
RED
BLUE
STEPPER
MOTOR
P6--6
TP-5572-6
Figure 14. Schematic Symbols (Typical)

Kohler 4CKM Specifications

General

Brand	Kohler
Model	4CKM
Category	Inverter
Language	English