Kohler 18RES User Manual

TP-6519 8/1772 Section 5 Component Testing and Adjustment
5.15 Continuity Checks
Hazardous voltage. Moving parts.
Will cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
DANGER
Short circuits. Hazardous voltage/current will cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage. Do not contact electrical
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
To further check generator set components, disconnect
the battery and remove wiring harness plugs from the
controller circuit board. Use an ohmmeter to check the
continuity of the components listed in Figure 5-40. Also
see Section 7, Wiring Diagrams.
Figure 5-40 gives resistance readings for functional
components. A zero reading on the ohmmeter indicates
continuity. No ohmmeter reading indicates very high
resistance or an open circuit. A measurement that
varies significantly from the value shown in the table
indicates a faulty component; replace faulty
components.
Note: Disconnect the generator set battery before
performing continuity checks to prevent damage
to the ohmmeter.
Component
Ohmmeter
Connections
Ohmmeter
Scale
Generator Set
Master Switch
Position
Ohmmeter Readings for Operative
Components
Generator set master
switch
RUN and VBAT
(See Figure 5-31)
R x 100 RUN Zero ohms (continuity). Any other
reading indicates a faulty switch.
OFF/RESET No reading (open circuit). Any other
reading indicates a faulty switch.
AUTO and VBAT
(See Figure 5-31)
R x 100 AUTO Zero ohms (continuity). Any other
reading indicates a faulty switch.
OFF/RESET No reading (open circuit). Any other
reading indicates a faulty switch.
P1 wiring harness P1-23 and ground Rx1 OFF/RESET Zero ohms (continuity)
Any other reading indicates a poor
ground connection.
P9-1 and P9-2 (stator
leads 11 and 44)
Rx1 OFF/RESET Zero ohms (continuity). If no
continuity, check wiring.
P9-6 and P9-7 (YEL and
ORG, 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
20-amp fuse
P9-7 (ORG) 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 faulty switch and/or wiring.
Temperature sensor
(CTS) *
P1-17 and P1-18 R x 1000 OFF/RESET 180--2500 ohms, depending on
engine temperature. See
Section 5.10.2. Zero ohms or an
open circuit indicates faulty wiring or
a faulty switch.
Magnetic pickup QCON1 and QCON2 R x 1000 OFF 1.3 -- 1.9 kOhms. Resistance values
outside of this range indicate a faulty
pickup; replace the magnetic pickup.
* See Section 5.10.2, Fault Shutdown Switches
Figure 5-40 Continuity Checks

Kohler 18RES Specifications

General

Brand	Kohler
Model	18RES
Category	Power Supply
Language	English