Electrical Troubleshooting - Winnebago 1987-1989 LeSharo Service Manual

FINAL DRIVE OIL COOLING SYSTEM
ELECTRICAL TROUBLESHOOTING
Figure 5 shows the electrical circuitry for the cooling
system. Figure 6 illustrates the electrical components
and their relative locations on the vehicle.
You will note in the diagram that the pump motor is
grounded through the timer-relay. This means that,
when the system is off, both wires to the pump will
be "hot". When the system turns on, the blue wire
will become the ground connection to the pump.
The thermoswitch is preset to close its contacts at
248°F (120°C). The final drive oil does not normally
reach this temperature except under extreme load or
temperature conditions. If an owner should report
that his pump seems to never run, it may be due to
light-duty usage of the vehicle by the owner.
Figure 5
~ED·'2GA
BLK· 12GA
VIOLET· 18GA
THERMOSWITCH
"1
I
I
Figure 6
Alternator
Connections
F7-27