8-10.3
TM 55-1520-240-T
8 - 1 0 . 3 T R A N S M I S S I O N O I L T E M P E R A T U R E I N D I C A T I N G A ND
W A R N I N G S Y S T E M O P E R A T I O N A L C H E CK
INITIAL SETUP
Applicable Configurations:
All
Tools:
Electrical Repairer’s Tool Kit,
NSN 5180-00-323-4915
Materials:
None
Personnel Required:
68F10 Aircraft Electrician
68F20 Aircraft Electrician
References:
TM 55-1520-240-23
Equipment Condition:
TM 55-1520-240-23:
Battery Connected
Electrical Power On
Hydraulic Power Off
Visual Check of Transmission Oil Temperature
Indicating and Warning System Performed
(Task 8-10.2)
TASK
RESULT
CHECK TRANSMISSION OIL TEMPERATURE INDICATING SYSTEM
1.
2.
3.
4.
Check that XMSN OIL TEMP circuit
If circuit breaker (1) is open, close it. If it opens
breaker (1) is closed.
again, go to Task 8-10.4.
Set and hold XMSN OIL TEMP switch
Pointer on XMSN TEMP indicator (3) shall indi-
(2) to TEST.
cate below –70°C (–94°F). Switch (2) TEST posi-
tion shall light. If pointer does not move below
–70°C point, go to Task 8-10.5. If pointer moves
below –70°C point but switch TEST position does
not light, replace switch.
Release XMSN OIL TEMP switch (2).
Switch (2) shall return to SCAN position. SCAN
position shall light. Indicator pointer shall move up
scale and display a temperature near ambient
temperature.
Record indication on XMSN TEMP indi-
If switch does not return to SCAN, or SCAN posi-
cator (3).
tion does not light, replace switch. If indicator
pointer does not indicate near ambient tempera-
ture, go to Task 8-10.6.
8 - 2 20
