S 434-062
(3)
For the overheat detectors with a third (center) clamp, attach the center clamp (8) to the support bracket. Use a bolt (6), washer (10) and nut (9).
S 434-065
(4)
Tighten the fasteners as follows:
(a) Screw: 20-40 pound-inches
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(b) Bolt: 20-40 pound-inches
S 434-066
CAUTION:_______DO NOT BEND THE DETECTOR ELEMENT. THIS CAN CAUSE DAMAGE TO THE ELEMENT.
(5) Install the liners (7) on the detector element, and install the element in the clamps in the correct position.
NOTE: Adjust the element for a maximum of 1 inch of overhang at the
____
opposite end of the responder (Fig. 401).
S 414-069
(6)
Close the clamps and lock.
S 424-070
(7)
Remove the protective cap and install the electrical connection.
H. Return the airplane to the usual condition.
S 414-071
WARNING: FAILURE TO FOLLOW 78-31-00/201 CAN CAUSE INJURY TO PERSONS
_______ AND/OR DAMAGE TO THE FAN COWL AND FAN C-DUCT AND THRUST REVERSER.
(1)
Close the applicable fan cowl panels (AMM 71-11-04/201) and thrust reversers (AMM 78-31-00/201).
S 444-139
(2)
Do the activation procedure for the thrust reverser
(AMM 78-31-00/201).
I. Do a Test of the Detector Element Installation
S 864-074
(1)
Supply electrical power (AMM 24-22-00/201).
S 754-075
(2)
Make sure these systems operate:
(a)
EICAS (AMM 31-41-00/201).
(b)
Warning System (Ref 31-51-00/601).
(c)
Master Dim and Test System (AMM 33-16-00/501).
S 864-076
(3) Open these circuit breakers on the overhead circuit breaker panel, P11, and attach DO-NOT-CLOSE tags:
(a)
11B20, FIRE DETECTION L ENGINE 1
(b)
11B21, FIRE DETECTION L ENGINE 2
(c)
11B22, FIRE DETECTION R ENGINE 1
(d)
11B23, FIRE DETECTION R ENGINE 2
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(e)
11B24, FIRE DETECTION APU 1
(f)
11B25, FIRE DETECTION APU 2
(g)
11B26, FIRE DETECTION CARGO 1
(h)
11B27, FIRE DETECTION CARGO 2
(i)
11J24, FIRE DET ALTN PWR CARGO
(j)
11J25, FIRE DET ALTN PWR APU
(k)
11J26, FIRE DET ALTN PWR ENGINE LEFT
(l)
11J27, FIRE DET ALTN PWR ENGINE RIGHT
(m)
Open these circuit breakers on the main power distribution panel, P6, and attach DO-NOT-CLOSE tags: 1) 6C1, FUEL COND CONT L 2) 6C2, FUEL COND CONT R
S 864-077
(4) Do the procedure for the left engine detectors.
(a) Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel:
NOTE: Close the two circuit breakers at the same time.
____
1) 11B20, FIRE DETECTION L ENGINE 1
2) 11B21, FIRE DETECTION L ENGINE 2
(b)
Push the ECS MSG switch on the EICAS MAINT panel on the right side panel, P61.
(c)
Push and hold the ENG/APU/CARGO switch on the FIRE/OVHT TEST panel, on the pilots aft control stand, P8.
(d)
After 2-4 seconds, make sure these indications occur: 1) The fire bell and caution annunciation are heard. 2) The red LEFT engine fire handle light, on the pilots aft
controls stand, P8, comes on. 3) The red L FUEL CONTROL switch light, on the quadrant control stand, P10, comes on. 4) The red FIRE light, on the captains instrument panel, P1-3, comes on. 5) The yellow L ENG OVHT light, on the pilots aft control stand, P8, comes on. 6) The EICAS messages L ENGINE FIRE and L ENG OVHT show on the top display. 7) The red master WARNING and yellow CAUTION lights, on the glareshield panel, P7, come on.
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