Material No. CP8002 *
lockwire 0.032 in. (0.8 mm) dia (Ref. 70-30-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power
R 26-12-00-710-001 Operational Check of Loop/Squib 31-60-00-860-001 EIS Start Procedure 31-60-00-860-002 EIS Stop Procedure 71-13-00-010-040 Opening of the Fan Cowl Doors 71-13-00-410-040 Closing of the Fan Cowl Doors 78-30-00-081-041 Make the Thrust Reverser Serviceable after
Maintenance
78-30-00-481-041 Make the Thrust Reverser Unserviceable for
Maintenance
78-36-00-010-040 Opening of the Thrust Reverser Doors
78-36-00-410-040 Closing of the Thrust Reverser Doors
26-12-17-991-300 Fig. 401
26-12-17-991-301 Fig. 402
3. Job Set-up
__________
Subtask 26-12-17-860-050
A. Aircraft Maintenance Configuration
(1)
On the center pedestal, on the ENG panel 115VU, make sure that a warning notice is in position to tell persons not to start the engine.
(2)
On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a warning notice is in position to tell persons not to energize the FADEC 1(2).
(3)
Make sure that the access platform is in position.
(4)
Make sure that the ground service network is energized (Ref. TASK 24-42-00-861-001).
Subtask 26-12-17-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ENGINE/2/FIRE DET/LOOP B 8WD2 A07 49VU ENGINE/1/FIRE DET/LOOP A 7WD1 A06 121VU ENGINE/ENG2/FIRE DET/LOOP A 7WD2 Q39 121VU ENGINE/ENG1/FIRE DET/LOOP B 8WD1 Q38
Subtask 26-12-17-010-052
C. Get Access
(1)
Make sure that the fan cowl doors are open (Ref. TASK 71-13-00-010-040): FOR 1000EM1 437AL, 438AR FOR 1000EM2 447AL, 448AR
(2)
Make sure that the thrust reverser doors are open (Ref. TASK 78-36-00-010-040): FOR 1000EM1 451AL, 452AR FOR 1000EM2 461AL, 462AR
Subtask 26-12-17-040-051
D. Make sure that the thrust reverser is unserviceable (Ref. TASK 78-30-00-481-041).
4. Procedure
_________
(Ref. Fig. 401/TASK 26-12-17-991-300, 402/TASK 26-12-17-991-301)
Subtask 26-12-17-420-050
A. Installation of the Core Fire Detectors
CAUTION : INSTALL THE FIRE DETECTORS AND THE RAIL AS ONE ASSEMBLY. THE
_______ FIRE DETECTOR SENSOR ELEMENTS CAN BE DAMAGED IF NOT SUPPORTED BY THE RAIL.
(1) Make sure that there is a good electrical bond between the sensors (5, 115), the rail assembly (20) and the engine bracket.
WARNING : TRICHLOROETHANE IS A HAZARDOUS MATERIAL THAT CAN CAUSE
_______ INJURY OR ILLNESS IF NOT CORRECTLY USED. BEFORE YOU USE THIS PRODUCT, READ THE APPLICABLE MANUFACTURER'S "MATERIAL DATA SAFETY SHEET" AND OBEY THE SAFETY AND HEALTH PRECAUTIONS.
(a)
Clean all bonding surfaces with a lint-free cloth made moist with
1.1.1 trichloroethylene (Material No. CP1008).
(b)
Dry the bonding surfaces with a clean cloth before the solvent evaporates.
(2)
Install the fire detector sensors on the engine brackets, as follows:
(a)
Put the fire detector (4001WD1) in place on the engine bracket and attach it with the bolt (65), washer (70), and nut (75) (one location only).
(b)
Put the fire detector (4001WD2) in place on the engine bracket and attach it with the bolts (65), washers (70), and nuts (75) (2 locations).
(c)
TORQUE the nuts (75) to between 20 and 25 lbf.in (0.22 and 0.28 m.daN).
(3)
Do an electrical resistance test to make sure there is a good electrical bond between the fire detector, the rail assembly, and the engine bracket.
(a)
Put one lead of the low voltage ohmmeter on the fire detector (5) or (115).
(b)
Put the other lead of the ohmmeter on the engine bracket.
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