Kohler 6.5-27EFOZD - Page 77

TP-6255 7/06 77Section 8 Component Testing and Adjustment
Component
Ohmmeter
Connections
Ohmmeter
Scale
Generator Set
Master Switch
Position
Ohmmeter Readings for Operative
Components*
Generator set master
switch
RUN and VBAT
(See Figure 8-29)
R x 100 RUN Zero ohms (continuity). Any other reading
indicates a bad switch.
s
w
i
t
c
h
(
S
e
e
F
i
g
u
r
e
8
2
9
)
OFF/RESET No reading (open circuit). Any other
reading indicates a bad switch.
AUTO and VBAT
(See Figure 8-29)
R x 100 AUTO Zero ohms (continuity). Any other reading
indicates a bad switch.
(
S
g
8
9
)
OFF/RESET No reading (open circuit). Any other
reading indicates a bad switch.
P1 wiring harness P1-27 and ground Rx1 OFF/RESET Zero ohms (continuity)
Any other reading indicates a poor ground
connection.
P15-1 and P15-3
(stator leads 11 and 44 for
1-phase models)
or
P15-1, P15-2, and P15-3
(stator leads 7, 8, and 9 for
3-phase models)
Rx1 OFF/RESET Zero ohms (continuity). If no continuity,
check wiring.
P16-3 and P16-6 (stator
leads 55 and 66)
Rx1 OFF/RESET Zero ohms (continuity). If no continuity,
check fuse F1 and wiring.
Controller fuse and
wiring
P1-24 and battery positive
(+)
R x 100 OFF/RESET Zero ohms (continuity). If no continuity is
found, check fuse F3 and wiring.
Auxiliary winding fuse
10 amp fuse
P16-3 and stator lead 55 R x 100 OFF/RESET Zero ohms (continuity). If no continuity is
found, check for an open circuit and/or a
blown fuse.
Low oil pressure (LOP)
switch *
Lead 13 and ground
(engine block)
R x 100 OFF/RESET Zero ohms (continuity). No continuity
indicates a bad switch and/or wiring.
Temperature sensor
(CTS) *
P1-8 and P1-9 R x 1000 OFF/RESET 180--2500 ohms, depending on engine
temperature. Zero ohms or an open circuit
indicates bad wiring or a bad switch.
Aux. run relay (K5) Terminals 85 and 86 Rx1 OFF/RESET 12-volt relay: 85±5 ohms coil resistance
24-volt relay: 305±15 ohms coil resistance
Lower resistance indicates a shorted relay
coil and/or wiring. High resistance indicates
an open relay coil and/or wiring.
* See Section 8.11.2, Fault Shutdown Switches
Figure 8-30 Continuity Checks