TM 1-1520-238-T-4
6147
670.
OIL HOT MAIN XMSN 2 INDICATOR IS LIGHTED WHEN HOD DISPLAYS NORMAL XMN 2
670
OIL TEMPERATURE (cont)
6. Check for 28 VDC between P7553 and
P7555.
Is voltage present?
YES
Go to step 7.
NO
Go to step 8.
7. Check for 10 VDC between P68284 and
P68285.
Is voltage present?
YES
Refer to TM 9-1230-476-20-2 to
troubleshoot multiplex
subsystem.
NO
Go to step 9.
8. Check for 28 VDC at P7553.
Is voltage present?
YES
Repair open wire between
P7555 and GS572J.
Go to paragraph 613.
NO
Refer to chapter 4 to
troubleshoot power plants.
9. Check for open between J7557 and J7558.
Does open exist?
YES
Replace main transmission oil
system 2 temperature probe
(TM 1-1520-238-23).
NO
Go to step 10.
10. Check for short between J7557 and J7558.
Does short exist?
YES
Replace main transmission oil
system 2 temperature probe
(TM 1-1520-238-23).
NO
Repair shorted wire between:
P7557 and P68285,
P7558 and P68284.
Go to paragraph 613.
END OF TASK