W DOC AIRBUS | AMM A320F

Installation of the Fuselage Overheat Sensing-Elements (Loop A and B)

TASK 36-22-18-400-001-A
Installation of the Fuselage Overheat Sensing-Elements (Loop A and B)

FIN: 30HF
FIN: 31HF
FIN: 32HF
FIN: 33HF
FIN: 34HF
FIN: 35HF
FIN: 36HF
FIN: 47HF
FIN: 48HF
FIN: 57HF
FIN: 58HF
FIN: 59HF
FIN: 60HF
FIN: 61HF
FIN: 62HF
FIN: 63HF
FIN: 73HF
FIN: 74HF
FIN: 75HF
FIN: 76HF
FIN: 78HF
FIN: 79HF
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
1
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 0.69 and 0.58 m.daN (61.06 and 51.33 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
No specific
lockwire, corrosion-resistant steel dia 0.63mm (0.0248 in.)
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
147AB, 147EB, 147FB, 151BW, 151CW, 191BB, 191EB, 191JB, 192EB, 192FB, 192KB, 196AB
151RW, 197KB
197BB
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 25-55-11-000-001-A
Removal of the Aft Cargo-Compartment Partition at FR47
TASK 25-55-11-400-001-A
Installation of the Aft Cargo-Compartment Partition at FR47
TASK 36-22-00-710-001-A
Operational Test of the Overheat Detection System
TASK 36-22-00-710-802-A
Operational Test of the Overheat Detection System
TASK 52-30-00-860-001-A
Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
F Fuselage Overheat Sensing Elements (Loop A and B) 31HF-36HF, 47HF, 58HF-63HF, 73HF-75HF, 78HF, 79HF
3. Job Set-up
Subtask 36-22-18-860-051-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the WARNING NOTICE(S) is in position:
  • in the cockpit on the Engine Control Panel 115VU to tell persons not to start the engine(s)
  • in the cockpit on the AIR COND Overhead Control Panel 30VU to tell persons not to push in the APU BLEED pushbutton switch
  • on the HP ground connector to tell persons not to pressurize the pneumatic system.
   (2) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the related access panels.
   (3) Make sure that the related access panels are open:
     (a) For access to the overheat sensing elements between FR35 and FR36:
     (b) For access to the overheat sensing elements between FR36 and FR42 LH:
     (c) For access to the overheat sensing elements between FR34 and FR42 RH:
     (d) For access to the overheat sensing elements between FR42 and FR50:
   (4) Make sure that the related access panels from the AFT cargo compartment are open:
     (a) For access to the overheat sensing elements between the FR46 and FR49:
     (b) For access to the overheat sensing elements between the FR46 and FR47:
     (c) For access to the overheat sensing elements between the FR47 and FR49:
Subtask 36-22-18-860-051-C ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the WARNING NOTICE(S) is in position:
  • in the cockpit on the Engine Control Panel 115VU to tell persons not to start the engine(s)
  • in the cockpit on the AIR COND Overhead Control Panel 30VU to tell persons not to push in the APU BLEED pushbutton switch
  • on the HP ground connector to tell persons not to pressurize the pneumatic system.
   (2) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position below the related access panels.
   (3) Make sure that the related access panels are open:
     (a) For access to the overheat sensing-elements between FR35 and FR36:
     (b) For access to the overheat sensing-elements between FR36 and FR42 LH:
     (c) For access to the overheat sensing-elements between FR34 and FR42 RH:
     (d) For access to the overheat sensing-elements between FR42 and FR50:
   (4) Make sure that the related access panels from the aft cargo compartment are open:
     (a) For access to the overheat sensing elements between FR46 and FR49:
     (b) For access to the overheat sensing elements between FR46 and FR47:
     (c) For access to the overheat sensing elements between FR47 and FR47.4:
     (d) For access to the overheat sensing elements between FR47.4 and FR49:
Subtask 36-22-18-865-051-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 1/CTL3HA1D12
49VUAIR BLEED/ENG 1/MONG2HA1D11
** ON A/C ALL
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
49VUAIR BLEED/ENG 1/CTL2HA1D11
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
** ON A/C ALL
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/ENG 2/CTL2HA2Z22
4. Procedure
Subtask 36-22-18-210-050-A
A. Inspection before Installation
   (1) Clean the component interfaces and the adjacent area.
   (2) Check that the sensing element is not damaged (flat or nicked).
   (3) Check the threaded section of the connector and the socket for the correct condition. Make sure that the center pin of the connector is free of corrosion and distortion.
   (4) Check the clamp for the correct condition. Make sure that it is correctly attached to the structure and can be correctly locked.
   (5) Inspect the spacers for damage.
   (6) For the overheat sensing elements 33HF/60HF between the FR39 and FR40:
  • Make sure that the material of the spacer is teflon. If it is an aluminum spacer, install a teflon spacer.
   (7) Install the retained grommet on the sensing element.
Subtask 36-22-18-420-051-A
CAUTION: REMOVE OR INSTALL THE SENSING ELEMENTS CAREFULLY. DO NOT TWIST, BEND OR CAUSE KINKS IN THE SENSING ELEMENTS. IF YOU DO, YOU CAN CAUSE DAMAGE TO THEM.
B. Installation of the Overheat Sensing Elements
NOTE: The installation procedure for all sensing elements of the leak detection system (double loop 125 degree C) is the same.
NOTE: For detailed descriptions of the installation procedure, refer to AMM TASK 36-22-18-200-001.
   (1) Put the sensing element in the correct position to the given routing.
   (2) Put the grommet (8) in the clamp position on the sensing element.
   (3) Install the sensing element with the attached grommet (8) to the clamp (7).
NOTE: The slot of the grommet must be on the opposite to the camloc of the clamp.
   (4) Close the clamp (7) and tighten the camloc (6).
   (5) Remove the blanking cap from the electrical connector and the socket (4).
   (6) Install the socket (4) of the sensing element to the bracket (5).
   (7) Install the retained washer (3) and the retaining nut (2).
   (8) TORQUE the retaining nut (2) to between 0.69 and 0.58 m.daN (61.06 and 51.33 lbf.in ) T.
   (9) Install the union nut (1) to the socket (4).
   (10) TORQUE the socket (4) to between 0.69 and 0.58 m.daN (61.06 and 51.33 lbf.in ) T.
   (11) Safety the socket (4), the retaining nut (2) and the union nut (1) with lockwire, corrosion-resistant steel dia 0.63mm (0.0248 in.).
Subtask 36-22-18-865-052-A
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 1/CTL3HA1D12
49VUAIR BLEED/ENG 1/MONG2HA1D11
** ON A/C ALL
49VUAIR BLEED/X FEED/VALVE/BAT2HVD13
** ON A/C NOT FOR ALL
49VUAIR BLEED/ENG 2/MONG3HA2D12
49VUAIR BLEED/ENG 1/CTL2HA1D11
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
** ON A/C ALL
122VUAIR BLEED/X FEED VALVE/NORM1HVZ20
** ON A/C NOT FOR ALL
122VUAIR BLEED/ENG 1/MONG3HA1Z23
122VUAIR BLEED/ENG 2/CTL2HA2Z22
Subtask 36-22-18-710-050-A ** ON A/C NOT FOR ALL
D. Do the operational test of the overheat detection system (Ref. AMM TASK 36-22-00-710-001).
Subtask 36-22-18-710-050-B ** ON A/C NOT FOR ALL
D. Do the operational test of the overheat detection system (Ref. AMM TASK 36-22-00-710-802).
5. Close-up
Subtask 36-22-18-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the access panels as necessary:
     (a) For the overheat sensing elements between the FR35 and FR36:
     (b) For the overheat sensing elements between the FR36 and FR42 LH:
  • Install the access panel 191JB.
     (c) For the overheat sensing elements between the FR34 and FR42 RH:
     (d) For the overheat sensing elements between the FR42 and FR50:
   (3) For the overheat sensing elements between the FR46 and FR47:
     (a) Install the partition panel 151BW (Ref. AMM TASK 25-55-11-400-001).
   (4) For the overheat sensing elements between the FR47 and FR49:
     (a) Install the access panel 151CW.
   (5) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).
Subtask 36-22-18-410-050-C ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the access panels as necessary:
     (a) For the overheat sensing elements between FR35 and FR36:
     (b) For the overheat sensing elements between FR36 and FR42 LH:
  • Install the access panel 191JB.
     (c) For the overheat sensing elements between FR34 and FR42 RH:
     (d) For the overheat sensing elements between FR42 and FR50:
   (3) Install the access panels as necessary from the aft cargo compartment:
     (a) For the overheat sensing elements between FR46 and FR47:
     (b) For the overheat sensing elements between FR47 and FR47.4:
  • Install the access panel 151RW.
     (c) For the overheat sensing elements between FR47.4 and FR49:
  • Install the access panel 151CW.
     (d) Close the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002).
Subtask 36-22-18-942-052-A
B. Put the aircraft back to its initial configuration.
   (1) Remove the WARNING NOTICE(S).
   (2) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 01:17:27 UTC
"Aviabrain" 2025