TM 9-2350-287-20-1
7-37. ENGINE COOLANT HIGH TEMPERATURE SWITCH REPLACEMENT.
This Task Covers:
a. Removal
b. Installation
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
l General mechanics tool kit (Item 24,
l Vehicle parked on level ground (refer to
Appendix l)
TM 9-2350-287-10).
l Air intake grille opened and locked in position
Materials/Parts:
(refer to TM 9-2350-287-10).
l Teflon pipe sealant (Item 63, Appendix D)
a.
REMOVAL
WARNING
Engine must be cool before removing engine
Removal of switch from hot engine will allow
receptacle, possibly causing severe burns.
NOTE
coolant high temperature switch.
hot coolant to spurt from switch
Working temperature range of switch is 218° to 232°F.
1.
Disconnect wire 509A from electrical connector (1) of engine coolant high temperature switch (2).
NOTE
When switch is removed, coolant will drain through switch mounting opening.
Replacement switch should be installed immediately to prevent loss of coolant.
2.
Unscrew and remove switch (2) from vehicle.
b.
INSTALLATION
1.
Apply Teflon pipe sealant to threads of switch (2), and install switch (2) in vehicle.
2.
Connect wire 509A to electrical connector (1) of switch (2).
7-104