W DOC AIRBUS | AMM A320F

Removal of the Left Side Harness 238W0904 [CFMI]

TASK 71-51-44-000-007-A
Removal of the Left Side Harness 238W0904

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 1M(3 FT)
No specific
AR
COVER - PROTECTION
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
F Left Side Electrical Harness
3. Job Set-up
Subtask 71-51-44-941-056-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) On the center pedestal, on the ENG panel 115VU:
     (a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
   (2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
   (3) On the overhead maintenance panel 50VU:
     (a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 71-51-44-865-068-A ** ON A/C NOT FOR ALL
WARNING: OPEN THE PROBE HEATER CIRCUIT-BREAKERS 1DA1(2), 3DA1(2,3), 4DA1(2,3) AND 5DA1(2,3) BEFORE ENG1(2)FADEC A and EIU 1(2) C/B'S 2KS1 AND 2KS2. IF YOU DO NOT OBEY THIS SEQUENCE:
  • THE PROBES WILL BECOME TOO HOT.
  • THIS CAN CAUSE DAMAGE TO EQUIPMENT AND INJURY TO MAINTENANCE PERSONNEL.
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUENGINE/1 AND 2/IGN/SYS A1JHA03
49VUANTI ICE/PROBES/AOA/14DA1D04
49VUANTI ICE/PROBES/PITOT/13DA1D02
49VUCOM/CVR/SPLY2RKE14
49VUCOM/CVR/CTL4RKE13
121VURCDR/DFDR7TUK16
121VUHYDRAULIC/HYD POWER/Y3803GXN30
122VUANTI ICE/WINDOWS/R4DG2W14
122VUANTI ICE/WINDOWS/L4DG1X14
122VUANTI ICE/PROBES/2/PITOT3DA2Y14
122VUANTI ICE/PROBES/2/AOA4DA2Y13
122VUANTI ICE/PROBES/2/STATIC5DA2Y11
122VUANTI ICE/PROBES/3/PITOT3DA3Z16
122VUANTI ICE/PROBES/3/AOA4DA3Z15
122VUANTI ICE/PROBES/3/STATIC5DA3Z14
122VUANTI ICE/PROBES/1/STATIC5DA1Z13
123VUY HYD/ELEC/PUMP3802GXAB06
123VUY HYD/ELEC/ELEC PUMP/NORM3801GXAB03
FOR FIN: 1000EM1 (ENGINE1)
49VUENGINE/1/FIRE DET/LOOP A7WD1A06
49VUENGINE/1/FADEC A/AND EIU 12KS1A04
121VUENGINE/IGN/ENG1/SYS B3JH1P41
121VUENGINE/IGN/ENG1/SYS A BAT2JH1P39
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B2WE1Q44
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A1WE1Q43
121VUENGINE/ENG1/FIRE DET/LOOP B8WD1Q38
121VUENGINE/ENG1/FADEC B/AND EIU 14KS1R41
122VUELEC/GCU/12XU1T26
FOR FIN: 1000EM2 (ENGINE2)
49VUENGINE/2/FIRE DET/LOOP B8WD2A07
49VUENGINE/2/FADEC A/AND EIU 22KS2A05
121VUENGINE/IGN/ENG2/SYS B3JH2P42
121VUENGINE/IGN/ENG2/SYS A BAT2JH2P40
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B2WE2Q42
121VUENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A1WE2Q41
121VUENGINE/ENG2/FADEC B4KS2Q40
121VUENGINE/ENG2/FIRE DET/LOOP A7WD2Q39
122VUELEC/GCU/22XU2T27
Subtask 71-51-44-010-062-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-040):
   (2) FOR [1000EM1] (ENGINE-1)
437AL 438AR
   (3) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (4) Put the ACCESS PLATFORM 1M(3 FT) in position.
4. Procedure
Subtask 71-51-44-020-056-A ** ON A/C NOT FOR ALL
A. Removal of the Left Side Harness 238W0904
NOTE: Make sure you loosely install the hardware in the correct location after you remove the harness from the clamps and line blocks.
   (1) On the right side of the engine, disconnect electrical connectors 408VC-A, 409VC-A and 447VC-A from the pylon junction box.
   (2) Disconnect the electrical connector 4005VC from the electrical connector 4005VC-A.
   (3) Remove the screw (10), the washers (15) and (20) and the nut (25) that attach the clamps (30) to clamp (70). Remove the clamp from the harness (5).
NOTE: Detail A shows the most current harness installation. Detail B and C illustrates initial harness installations. Refer to the illustrated parts catalog for applicable harness installation configurations.
   (4) Remove the screws (35), the washers (15) and the nuts (25) that attach the clamps (30), (40) and (65) to the brackets. Remove the clamps.
   (5) Remove the bolts (45), the washers (50) and the nuts (55) that attach the clamps (60) to the flange station 176. Remove the clamps.
   (6) On the left side, remove the bolts (45), the washers (50) and the nuts (55) that attach the clamps (60) to the flange station 176. Remove the clamps.
   (7) Remove the screw (35), the washer (15) and the nut (25) that attach the clamp (60) to the bracket. Remove the clamp.
   (8) Remove existing hardware that attach the remaining clamp (60). Remove the clamp.
   (9) Remove the screws (35), the washers (15) and the nuts (25) that attach the clamps (75) to the brackets. Remove the clamps.
   (10) Remove the screws (35) and the washers (15) that attach the clamps (80) and (90) to the brackets. Remove the clamps.
   (11) Remove the screws (35), the washers (15) and the nuts (25) that attach the clamps (85) and (90) to the ground plate. Remove the clamps.
   (12) Remove the nuts (95), the lockwashers (100) and the washers (105) that attach the ground wires to the ground studs.
   (13) Disconnect electrical connector 4000EL-A from the fuel filter differential pressure switch.
   (14) Disconnect electrical connector 4003EN-A from the oil pressure transmitter.
   (15) Disconnect electrical connector 4000EN-A from the low oil pressure switch.
   (16) Disconnect electrical connector 1074GK/3074GD-A from the hydraulic low pressure switch.
   (17) Disconnect electrical connector 4002EN-A from the oil quantity transmitter.
   (18) Remove the screws (35) and the washers (15) that attach the clamps (30), (40), (75) and (110) to the brackets. Remove the clamps.
   (19) Remove existing hardware that attach the clamp (40) to the bracket. Remove the clamp.
   (20) Remove the screws (35), the washers (15) and the nuts (25) that attach the clamps (40), (85) and (110) to the brackets. Remove the clamps.
   (21) Remove the screw (120), the washer (15), the spacer (115) and the nut (25) that attach the clamps (40), (125) and (130) to the support tube. Remove the clamp.
   (22) Disconnect electrical connector 4000KC-A from the fuel filter.
   (23) Remove the screws (35), the washers (15) and the nut (25) that attach the clamps (40) and (110) to the fuel control harness. Remove the clamps.
   (24) Disconnect electrical connector 4000WD2-A from the fire detector.
   (25) Remove the screw (135), the washer (15) and the spacer (140) that attach the clamps (40) to the bracket. Remove the clamps.
   (26) Remove the screw (120), the washer (15), the spacer (115) and the nut (25) that attach the clamps (40) to the bracket. Remove the clamps.
   (27) Disconnect electrical connector 4004EN-A from the oil temperature switch.
   (28) Disconnect electrical connector 4001EN-A from the oil filter differential pressure switch.
   (29) Disconnect electrical connector 1030GK/3030GD-A from the hydraulic pump bypass valve.
   (30) Disconnect electrical connector 4000WD1-A from the fire detector.
   (31) Remove the electrical harness (5) from the engine.
   (32) Put COVER - PROTECTION on the electrical connectors that as follows:
  • the fuel filter
  • the fire detectors
  • the pylon junction box
  • the electrical connector 4005VC-A
  • the oil pressure transmitter
  • the low oil pressure switch
  • the hydraulic low pressure switch
  • the oil quantity transmitter
  • the hydraulic pump bypass valve
  • the oil temperature switch
  • the oil filter differential pressure switch
  • the fuel filter differential pressure switch
[Rev.10 from 2021] 2026.04.01 02:23:23 UTC
"Aviabrain" 2025