TP-6255 7/0676 Section 8 Component Testing and Adjustment
8.12 Fuses
The engine harness (or junction box for
9EOZD/7EFOZD models) contains three inline fuses.
See Figure 8-27.
Always identify and correct the cause of a blown fuse
before restarting the generator set. Refer to Section 6,
Troubleshooting, for conditions that may indicate a
blown fuse. Replace blown fuses with identical
replacement parts.
Fuse Label
Part
Number
Location
Auxiliary Winding,
10 amps
F1 358337 Lead 55
Relay Interface Board,
10 amps
F2 223316 Lead PF2
Controller, 10 amps F3 223316 Lead PF3
* See Figure 8-28 for 9EOZD/7EFOZD model fuse location.
Figure 8-27 Fuses
1
ADV6967-A
1. Fuses
Figure 8-28 Fuse Location on 9EOZD/7EFOZD
Model
8.13 Continuity Checks
Hazardous voltage.
Can cause severe injury or death.
Operate the generator set only when
all guards and electrical enclosures
areinplace.
Moving rotor.
WARNING
Short circuits. Hazardous voltage/current can 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
ADC circuit board. Use an ohmmeter to check the
continuity of the components listed in Figure 8-30. Also
see Section 10, Wiring Diagrams.
Figure 8-30 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.
321
321
Master Switch in
RUN Position
Master Switch in
AUTO Position
Zero ohms (continuity) across
RUN and VBAT terminals
Zero ohms (continuity) across
VBAT and AUTO terminals
AUTO
RUN
AUTO
RUN
Back View
Back View
VBAT
VBAT
Figure 8-29 Generator Set Master Switch Continuity
Checks
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