757
MAINTENANCE MANUAL

 S 865-011
 (9)  Close this circuit breaker on the P11 panel:
 (a)  11J24, FIRE DET ALTN PWR CARGO
 S 755-012
 (10)
 Push and hold the ENG/APU/CARGO switch on the FIRE/OVHT TEST panel, M10445, on the pilots aft control stand, P8.

 S 755-013

 (11)
 Make sure these EICAS messages show on the bottom display:

 (a)  
FWD CARGO DET 1 and FWD CARGO DET 2.

 (b)  
AFT CARGO DET 1 and AFT CARGO DET 2.

 S 755-014
 (12) After 2-4 seconds, make sure these indications occur:
 (a)  
The red FWD and AFT cargo fire light come on.

 (b)  
The EICAS messages FWD and AFT CARGO FIRE show on the top display.

 (c)  
The red master WARNING lights, on the glareshield panel, P7, come on.

 (d)  
The fire bell is heard.

 S 865-015
 (13)
 Release the ENG/APU/CARGO switch.

 S 755-016

 (14)
 Make sure the indications stop.

 S 865-017

 (15)
 Remove 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
 E.  GUN 102-999; Do a Test of the Fire Detection System Fail Light
 S 865-158
 (1)
Put the EICAS COMPUTER select switch (on P9) to the AUTO position.

 S 865-159

 (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

 (3)  
Open applicable cargo door (AMM 52-34-00/201).

 S 015-212
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A
757
MAINTENANCE MANUAL

 S 035-020
 (4)  Disconnect the electrical connectors, D4402 and D4404, from the forward cargo smoke detectors, M10458 and M10459. The forward cargo compartment smoke detector assembly (detectors, blowers, and plenum pressure switch) is located in the cargo compartment ceiling, just aft of the No. 1 cargo door. (See Figure 501)
 S 865-021
 (5)  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 755-022
 (6)  Make sure these indications occur: (a) The yellow FAIL P-RESET switchlight, on the control stand, P8, comes on.
 (b) (c)  The EICAS message FIRE/OVHT SYS shows on the top display.The EICAS messages FWD CARGO DET 1 and FWD CARGO DET 2 show on the bottom display.
 S 865-024
 (7)  Push the FAIL P-RESET switchlight on the FIRE/OVHT TEST panel, M10445, on the pilots aft control, P8.
 S 755-025
 (8)  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 FWD CARGO DET 1 and FWD CARGO DET 2 show on the bottom display.
 S 865-026
 (9)  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 435-027

 (10)
 Connect the electrical connector, D4402, to the detector, M10458.

 S 435-028

 (11)
 Connect the electrical connector, D4404, to the detector, M10459.

 S 035-029

 (12)
 Disconnect the electrical connectors D4406 and D4408 from the aft cargo smoke detectors M10460 and M10461. The aft cargo smoke detector assembly is located in the cargo compartment sidewall, forward of the No. 2 cargo door.

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