Fuses; Continuity Checks - Kohler 8.5RES Service Manual

5.11 Fuses

The engine harness contains three inline fuses. See
Figure 5-27. Another 10-amp fuse protects the battery
charger.
Always identify and correct the cause of a blown fuse
before restarting the generator set. Refer to Section 3,
Troubleshooting, for conditions that may indicate a
blown fuse. Replace blown fuses with identical
replacement parts.
Fuse Label
Auxiliary Winding,
20 amps
Relay Interface Board,
10 amps
Controller, 10 amps
Battery Charger,
10 amps
Figure 5-27 Fuses

5.12 Continuity Checks

WARNING
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
are in place.
Short circuits. Hazardous voltage/current can cause
severe injury or death. Short circuits can cause bodily injury
and/or equipment damage.
connections with tools or jewelry while making adjustments or
repairs. Remove all jewelry before servicing the equipment.
TP-6196 5/04
Part
Location
Number
F1 292937 Lead 55
F2 223316 Lead PF2
F3 223316 Lead PF1
— AGS 10 Battery charger
DC lead.
Moving rotor.
Do not contact electrical
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 5-29. Also
see Section 7, Wiring Diagrams.
Figure 5-29 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
components.
Note: Disconnect the generator set battery before
performing continuity checks to prevent damage
to the ohmmeter.
Master Switch in
RUN Position
Master Switch in
AUTO Position
Figure 5-28 Generator Set Master Switch Continuity
Checks
Section 5 Component Testing and Adjustment
component; replace
Zero ohms (continuity) across
RUN and COM terminals
Zero ohms (continuity) across
COM and AUTO terminals
faulty
#
59