High Temperature Shutdown Switch
The high temperature shutdown switch is located on the
top of the water pump housing. The water pump is on the
left end of the engine inside the fan pulley assembly.
There is a blue/white wire attached to the shutdown
switch.
2
The Standard Control Module monitors the operation of
the high temperature shutdown switch. If the ignition
switch is in the ON position and the high temperature
shutdown switch is closed (excessive coolant tempera-
ture), the Module Hi Temp input LED should be illumi-
nated.
1
High Temperature Shutdown Switch Test
1.
high temperature shutdown switch.
Lower the coolant level in the engine and remove the
Figure 14
1.
Temperature switch
2.
Water pump housing
2.
Put the switch in a container of oil with a thermometer
and slowly heat the oil (Fig. 15).
VOA
CAUTION
Handle the hot oil with extreme care to prevent
personal injury or fire.
3.
(ohms setting). The switch is normally open and should
close at 238oF (114oC).
Check the continuity of the switch with a multimeter
Figure 15
4.
(111
Allow the oil to cool. The switch should open at 232oF
oC).
Reelmaster 2000–D
Electrical System
Page 5 – 15
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| Document Type | Service Manual |
| Language | English |
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