TM 1-1520-238-T-7
11–251
11–32.
ASE BUCS CIRCUIT BREAKER DOES NOT STAY CLOSED – FAULT IN CPG
11–32
BUCS WIRING (cont)
9. Check for short between P472–A17 and
ground.
Does short exist?
YES
Go to step 10.
NO
Go to step 13.
10. Detach J273. Check for short between J273–1
and ground.
Does short exist?
YES
Repair shorted wire between
P472–A17 and J273–1.
Go to paragraph 11–23.
NO
Go to step 11.
11. Check for short between J273–5 and ground.
Does short exist?
YES
Go to step 12.
NO
Replace CPG directional SPAD
(TM 1-1520-238-23).
12. Check for short between P912–B13 and ground.
Does short exist?
YES
Repair shorted wire between:
P912–B13 and P235 SP1,
P235 SP1 and J273–5,
P235 SP1 and P236 SP1,
P236 SP1 and P912–B16.
Go to paragraph 11–23.
NO
Repair shorted wire between:
P912–B13 and J447–B16,
P447–B16 and P686–53,
J912–B16 and J447–B10,
P447–B10 and P686–52.
Go to paragraph 11–23.
13. Check for short between J267–1 and ground.
Does short exist?
YES
Repair shorted wire between
P472–A18 and J267–1.
Go to paragraph 11–23.
NO
Replace CPG longitudinal SPAD
(TM 1-1520-238-23).
END OF TASK
