TM 9-6115-664-13&P
4-58. ENGINE TEMPERATURE SWITCH MAINTENANCE
This task covers removal, inspection, and installation
INITIAL SETUP
Tools:
Equipment Condition:
Shop Equipment, Automotive Maintenance
APU Shut Down
and Repair (Item 1, App. B)
NATO Plug Disconnected
A.
REMOVAL.
1.
Open top front cover on APU enclosure by turning
latches.
2.
Disconnect engine exhaust bellows (1, Figure 4-48)
from rear of valve access door (2) by removing
screw (3), lockwasher (4), and washer (5).
3.
Open valve access door (2) by turning door latches.
4.
Disconnect electrical wire (6) from temperature
switch (9) by removing nut (7) and washer (8).
5.
Unscrew temperature switch (9) and washer (10)
from engine block.
B.
INSPECTION.
1.
Inspect electrical wire for cuts, abrasions, and bare
wire. Check wiring insulation for damage.
2.
Inspect temperature switch for obvious damage.
Inspect probe portion of switch for cracks or signs of
heat stress.
Figure 4-48. Temperature Switch
(Sheet 1 of 2)
4-128
