(7)
Push the FAIL P-RESET switch-light, on P8.
S 866-040
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S 756-041
(8) Make sure these indication occur: (a) The yellow FAIL P-RESET switch-light goes off. (b) The EICAS message, FIRE/OVHT SYS, does not show.
S 866-042
(9) Open these circuit breakers on the P11 panel and attach DO-NOT-CLOSE tags: (a) 11B26, FIRE DETECTION CARGO 1 (b) 11B27, FIRE DETECTION CARGO 2
S 426-043
(10)
Connect the electrical connector, D4402, to the detector, M10458, and connect the electrical connector, D4404, to the detector, M10459.
S 036-044
(11)
Disconnect the electrical connectors, D4406 and D4408, from the smoke detectors in the aft cargo compartment, M10460 and M10461. The smoke detector assembly in the aft cargo compartment is installed in the cargo compartment sidewall just forward of No. 2 cargo door.
S 866-045
(12)
Remove all of the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel.
(a)
11B26, FIRE DETECTION CARGO 1 or CARGO SMOKE 1
(b)
11B27, FIRE DETECTION CARGO 2 or CARGO SMOKE 2
S 756-046
(13) Make sure these indications occur:
(a)
The yellow FAIL P-RESET switch-light, on P8, comes on.
(b)
The EICAS message, FIRE/OVHT SYS, shows on the top display.
(c)
These EICAS messages show on the bottom display. 1) AFT CARGO DET 1
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2) AFT CARGO DET 2
(d) These EICAS messages do not show on the bottom display. 1) FWD CARGO DET 1 2) FWD CARGO DET 2
S 866-047
(14)
Push the FAIL P-RESET switch-light.
S 756-048
(15)
Make sure these indications occur:
(a)
The yellow FAIL P-RESET switch-light goes off.
(b)
The EICAS message, FIRE/OVHT SYS, does not show.
S 866-049
(16) 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 436-050
(17)
Connect the electrical connector, D4406, to the detector, M10460.
S 436-063
(18)
Connect the electrical connector, D4408, to the detector, M10461.
S 866-051
(19)
Remove all of the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel.
(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 756-052
(20) Make sure these EICAS messages do not show on the bottom display:
(a) AFT CARGO DET 1
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(b) AFT CARGO DET 2
S 026-100
(21)
Close forward and aft cargo doors (AMM 52-34-00/201). S 866-062
(22)
Remove electrical power if it is not necessary (AMM 24-22-00/201).
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