26-16-00
ALL ú ú 06 Page 505 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
S 865-030
(13) Remove the DO-NOT-CLOSE tags and close these circuit breakers, on the P11 panel, at the same time:
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE DET 1
(b)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE DET 2
S 755-031
(14) Make sure these indications occur:
(a)
The yellow FAIL P-RESET switchlight, on P8, comes on.
(b)
The EICAS message FIRE/OVHT SYS shows on the top display.
(c)
The EICAS messages AFT CARGO DET 1 and AFT CARGO DET 2 show on the bottom display.
(d)
The EICAS messages FWD CARGO DET 1 and FWD CARGO DET 2 do not show on the bottom display.
S 865-032
(15)
Push the FAIL P-RESET switchlight.
S 755-033
(16)
Make sure these indications occur:
(a)
The yellow FAIL P-RESET switchlight goes off.
(b)
The EICAS message FIRE/OVHT SYS does not show on the top display.
(c)
The EICAS messages AFT CARGO DET 1 and AFT CARGO DET 2 show on the bottom display.
S 865-034
(17) Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags:
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE DET 1
(b)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE DET 2
S 035-035
(18)
Connect the electrical connector, D4406, to the detector, M10460.
(19)
Connect the electrical connector, D4408, to the detector, M10461.
S 865-037
(20)
Remove the DO-NOT-CLOSE tags and close these circuit breakers, on the panel P11, at the same time:
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE DET 1
(b)
11J24, FIRE DET ALTN PWR CARGO
(c)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE DET 2
S 035-036
S 755-038
(21) Make sure the EICAS messages AFT CARGO DET 1 and AFT CARGO DET 2 do not show on the bottom display.
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26-16-00
ALL ú ú 06 Page 506 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
S 025-213
(22)
Close cargo door (AMM 52-34-00/201).
S 865-181
(23)
Remove electrical power if is not necessary (AMM 24-22-00/201).
F. ON GUN 001-205, GUN 207-999; Do a test of the Fire Detection System Fail Light and make sure detectors are correctly connected.
S 865-161
(1)
Put the EICAS COMPUTER select switch (on P9) to the AUTO position.
S 865-162
(2)
Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags:
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE DET 1
(b)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE DET 2
(c)
11J24, FIRE DET ALTN PWR CARGO
S 035-163
(3)
Disconnect the electrical connectors, D4402, from the forward cargo smoke detectors 1, M10458. The forward cargo compartment smoke detector assembly (detector, blower, and plenum pressure switch) is located in the cargo compartment ceiling, just aft of the No. 1 cargo door. (See Figure 501)
S 865-164
(4)
Remove the DO-NOT-CLOSE tags and close these circuit breakers, on the P11 panel, at the same time:
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE DET 1
(b)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE DET 2
S 755-165
(5) Make sure these indications occur:
(a) The EICAS messages FWD CARGO DET 1 shows on the bottom display.
S 865-186
(6) Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags:
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE DET 1
(b)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE DET 2
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