A320飞机维护手册 AMM FIRE PROTECTION 防火1(41)

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R  align with the inserts (60). 
R  (e) TORQUE the nuts (70) to between 50 and 60 lbf.in (0.56 and 0.67 
R  m.daN). 
R  (f) Install the nuts (5), bolts (15) and clamps (40) that attach the 
R  fire detector sensors (45) to the brackets on the accessory 
R  gearbox. 
R  (g) Use an ohmmeter and do an electrical resistance check of the fire 
R  detectors (45) as follows: 
R  1_  Put one lead of the ohmmeter on the fire detector (45).
R  2_  Put the other lead of the ohmmeter on the engine bracket.
R  3_  The resistance measured between the ohmmeter leads must be
R  0.0025 ohm or less. 
R  4_  If the resistance is more than 0.0025 ohm, remove the nuts
R  (5), bolts (15), clamps (40) and nuts (70) and clean the 
R  bonding surfaces again. 
R  5_  Do this procedure until the resistance indication is in the
R  correct range. 
R  (h) Put the inserts (60) on the fire detector sensor tubes (45). 
R  CAUTION : THE SENSOR TUBES MUST FOLLOW THE CONTOUR OF THE RAIL_______ 
R  SMOOTHLY WITH A MINIMUM BEND RADIUS OF 0.35 INCH (8.89 
R  MM). 
R  (i) Put the inserts (60) in the clamp base and install the clamp 
R  covers (55) with the bolts (50). Do not torque the bolts at this 
R  time.

 

 NOTE : The end of each fire detector (45) sensor tube may be set
____
R R  in a loop. Do not allow more than 1 in. (25.40 mm) overhang from the liner at the end locations.
 (j) TORQUE the bolts (50) to between 20 and 25 lbf.in (0.22 and 0.28 m.daN).
 (k) Connect the electrical connectors 4000WD1A and 4000WD2A to the fire detectors (45). Tighten the connectors by hand and lock them by one-eighth turn.
 Subtask 26-12-15-865-070
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breakers(s): 7WD1, 7WD2, 8WD1, 8WD2 7WD1, 7WD2, 8WD1, 8WD2
 Subtask 26-12-15-860-072
 C. Do the EIS start procedure (Upper ECAM DU and lower ECAM DU only) (Ref. TASK 31-60-00-860-001).
 Subtask 26-12-15-710-056
 D. Do this test. 
R R  (1) On the upper ECAM DU, make sure that the FIRE ENG1(2) LOOP A (B) FAULT message went out of view.
 (2) Do an operational test of the engine fire and overheat detection (Loop/Squib) (Ref. TASK 26-12-00-710-001).
 5. Close-up________
 Subtask 26-12-15-860-073
 A. Do the EIS stop procedure (Ref. TASK 31-60-00-860-002).

 

 Subtask 26-12-15-410-057

 B. Close Access
 (1) Make sure that the work area is clean and clear of tool(s) and other items.
 (2) Close the fan cowl doors (Ref. TASK 71-13-00-410-040): FOR 1000EM1 R 437AL, 438AR
 FOR 1000EM2 R 447AL, 448AR.
 (3) Remove the warning notice(s).
 (4) Remove the access platform(s).
 Subtask 26-12-15-862-056

 C. De-energize the ground service network (Ref. TASK 24-42-00-862-001).

 DETECTOR - FIRE, PYLON (LOOP A AND B) (3WD1,3WD2,4WD1,4WD2)
___________________________________________________________ REMOVAL/INSTALLATION
____________________
 TASK 26-12-16-000-001
 Removal of the Pylon Fire Detectors (3WD1,3WD2,4WD1,4WD2)
 WARNING : BE CAREFUL WHEN YOU WORK ON THE ENGINE COMPONENTS IMMEDIATELY AFTER
_______ THE ENGINE IS SHUTDOWN. THE ENGINE COMPONENTS CAN STAY HOT FOR UP TO ONE HOUR.
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
 No specific circuit breaker(s) safety clip(s)
 No specific warning notice
 No specific access platform 1 m (3 ft. 3 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
26-12-16-000-002 Removal of the Support with the Pylon Fire Detectors 71-13-00-010-040 Opening of the Fan Cowl Doors 78-30-00-481-041 Make the Thrust Reverser Unserviceable for
 Maintenance
 78-36-00-010-040 Opening of the Thrust Reverser Doors
 26-12-16-991-001 Fig. 401

R 26-12-16-991-002-A Fig. 402 3. Job Set-up
　
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