Kohler EKOZD Series Service page 200

Disabling the generator set.
cause severe injury or death.
generator set or equipment connected to the set, disable the
generator set as follows: (1) Press the generator set off/reset
button to shut down the generator set. (2) Disconnect the
power to the battery charger, if equipped. (3) Remove the
battery cables, negative (- ) lead first. Reconnect the negative
(- ) lead last when reconnecting the battery. Follow these
precautions to prevent the starting of the generator set by the
remote start/stop switch.
1. Disconnect the battery (negative lead first).
2. Disconnect V7, V8, V9, V0 stator leads at generator
set controller terminal block before doing test. Tape
to insulate the terminals.
3. Disconnect the 12 leads (three-phase alternator),
6 leads (600 volt), or 4 leads (single-phase
alternator). Keep each lead isolated from each
other and ground.
4. Visually check the stator assembly for shorted or
open winding(s). See Figure 11-13.
1
1. Windings
2. Leads
Figure 11-13 Stator Assembly
5. With ohmmeter, check each pair of leads for low
resistance readings (continuity). High resistance
across A or low resistance (continuity) across B
and the stator core (ground) indicates a faulty
stator; replace stator.
Figure 11-15. See Section 1.8, Specifications,
Electrical Values for stator assembly resistance
values.
Out of specification
non-functional
replacement. Low resistance readings indicate a
shorted winding. High resistance readings indicate
an open winding.
between any lead and ground.
200 Section 11 Alternator Component Testing and Adjustment
Accidental starting can
Before working on the
2
GC70110A-A
See Figure 11-14 and
readings indicate
stator assembly requiring
No continuity should exist
1 4 2
A
B
C
Make ohmmeter connections across:
1. 1 and 4 leads
2. 2 and 5 leads
3. 3 and 6 leads
4. 7 and 10 leads
5. 8 and 11 leads
6. 9 and 12 leads
7. 1 and 2 leads
8. 1 and 3 leads
9. 1 and 7 leads
10. 1 and 8 leads
11. 1 and 9 leads
12. 2 and 3 leads
13. 2 and 7 leads
14. 2 and 8 leads
Figure 11-14 Stator Winding Continuity Test
Ohmmeter
Connections, Leads:
1- 4 2- 5
7- 10 8- 11
1- 2 1- 3
1- 8 1- 9
2- 7 2- 8
3- 7 3- 8
7- 8 7- 9
1 and core (ground)
2 and core (ground)
3 and core (ground)
7 and core (ground)
8 and core (ground)
9 and core (ground)
a
Figure 11-15 Test Connections and Continuity Results
for a Functional Stator Assembly
5 3 6 7 10 8
A. Continuity/Resistance
B. No Continuity
C. No Continuity

15. 2 and 9 leads
16. 3 and 7 leads
17. 3 and 8 leads
18. 3 and 9 leads
19. 7 and 8 leads
20. 7 and 9 leads
21. 8 and 9 leads
22. 1 lead and core (ground)
23. 2 lead and core (ground)
24. 3 lead and core (ground)
25. 7 lead and core (ground)
26. 8 lead and core (ground)
27. 9 lead and core (ground)
Continuity
3- 6
Yes
9- 12
1- 7
2- 3
2- 9
No
3- 9
8- 9
No
11 9 12
TP-5783-3
TP-6953 7/19