W DOC AIRBUS | AMM A320F

Installation of the Brake Temperature Monitoring-Unit

TASK 32-47-18-400-001-A
Installation of the Brake Temperature Monitoring-Unit

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
WARNING: MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING GEAR. THIS WILL PREVENT UNWANTED MOVEMENT OF THE LANDING GEAR, AND THUS POSSIBLE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT AND/OR EQUIPMENT.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 731
ZONE: 741
FIN: 2GW
FIN: 3GW
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
HOT AIR BLOWER MAX OPERATING 370 DEG C (700 DEG F)
No specific
1
MILLIOHMMETER ACCURACY 0.005 OHM
No specific
AR
SAFETY BARRIER(S)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 28 and 24 lbf.in (0.32 and 0.27 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.06AAB1)
Polysulfide Sealant-General Purpose Fillet -
(Material No.06ABB1)
Polysulfide Sealant-Fuel Tank Fillet -
(Material No.06ABF1)
Polysulfide Sealant-Fuel Tank Quick Curing -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
731
L.H MAIN GEAR
741
R.H MAIN GEAR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
9
TUBING - HEAT SHRINKABLE (NSA937502)
AIPC 32-11-43-01-060
9
TUBING - HEAT SHRINKABLE (ABS0836)
AIPC 32-11-43-01-065
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 32-00-00-481-001-A
Installation of the Safety Devices on the Landing Gears
F Brake Temperature Monitoring-Unit - Location and Detail
3. Job Set-up
Subtask 32-47-18-941-051-A
A. Safety Precautions
   (1) Make sure that the SAFETY BARRIER(S) are in position.
   (2) Make sure that the ground safety locks are on the landing gear (Ref. AMM TASK 32-00-00-481-001).
   (3) On the panel 400VU:
  • make sure that the landing-gear control-lever 6GA is in the DOWN position
  • make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the landing gear.
Subtask 32-47-18-865-051-A
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUHYDRAULIC/BRK/TEMP/DET/UNIT1GWM37
4. Procedure
Subtask 32-47-18-420-053-E
A. Preparation for Installation
   (1) If necessary, use Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean the interfaces of the brake temperature monitoring-unit (10).
   (2) Remove the sealant from the electrical receptacle of the brake temperature monitoring-unit (10).
   (3) Do an inspection of the component interfaces and the adjacent area.
   (4) Make sure that the parts retained from the removed component are clean and in the correct condition.
Subtask 32-47-18-420-050-F
B. Installation of the Brake Temperature Monitoring Unit
   (1) Put the brake temperature monitoring unit (10) in position on the bracket (2). Make sure that you can see the identification plates on the top of the brake temperature monitoring unit (10).
   (2) Install the monitoring unit (10) with the bolts (1), the washers (6) and the nuts (7).
   (3) TORQUE the nuts (7) to between 28 and 24 lbf.in (0.32 and 0.27 m.daN ) T.
   (4) Apply Polysulfide Sealant-General Purpose Fillet - (Material No.06AAB1) or Polysulfide Sealant-Fuel Tank Quick Curing - (Material No.06ABF1) to the bolts (1) and the nuts (7).
Subtask 32-47-18-760-050-E
C. Electrical Bonding Resistance Test
   (1) Use a MILLIOHMMETER ACCURACY 0.005 OHM to measure the bonding resistance between:
     (a) The MLG forward pintle bearing and the brake temperature monitoring unit (10). The bonding resistance must be less than 20 milliohms.
Subtask 32-47-18-420-054-F
D. Electrical Connection of the Brake Temperature Monitoring Unit
   (1) Remove the CAP - BLANKING from the receptacles of the brake temperature sensors (4) and the electrical connectors (5).
   (2) Install the electrical connectors (5) on the brake temperature sensors (4).
   (3) Move the rubber shields (3) into position over the electrical connectors (5) and the brake temperature sensor (4) connector receptacles.
   (4) Remove the CAP - BLANKING from the receptacle of the brake temperature monitoring unit (10) and the electrical connector (8).
   (5) Put a 50 mm (1.9685 in.) +/- 3 mm (0.1181 in.) length of:
  • 32114301-065TUBING - HEAT SHRINKABLE (ABS0836)9 in position on the electrical connector (8).
    or,
  • 32114301-060TUBING - HEAT SHRINKABLE (NSA937502)9 in position on the electrical connector (8).
NOTE: It is recommended that heat-shrinkable tubing type ABS0836 is installed. Heat-shrinkable tubing type NSA937502 can be used as an alternative if ABS0836 is not available.
   (6) Install the electrical connector (8) on the monitoring unit (10).
   (7) Install the heat-shrinkable tubing (9) fully on the electrical connector (8) and the receptacle of the monitoring unit (10).
   (8) Use a HOT AIR BLOWER MAX OPERATING 370 DEG C (700 DEG F) that can supply air at a minimum temperature of 135 deg.C (275.00 deg.F). Decrease the size of the heat-shrinkable tubing (9) fully along its full length.
   (9) Apply a bead of Polysulfide Sealant-Fuel Tank Fillet - (Material No.06ABB1) to the joint between the heat-shrinkable tubing (9) and the monitoring unit (10).
F Brake Temperature Monitoring-Unit - Location and Detail
Subtask 32-47-18-865-052-A
E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
121VUHYDRAULIC/BRK/TEMP/DET/UNIT1GWM37
Subtask 32-47-18-860-051-A
F. Aircraft Maintenance Configuration
   (1) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
   (2) On panel 11VU, push the WHEEL pushbutton (in).
Subtask 32-47-18-710-050-A
G. Test of the Brake Temperature System
ACTION
RESULT
1.On the ECAM control panel:

  • push the WHEEL key.
On the lower ECAM DU:
  • the WHEEL page comes into view. Make sure that the temperatures shown agree with the ambient temperature with a precision of plus or minus 25 deg.C (77.00 deg.F).

NOTE: In case of negative temperatures, or temperatures near 0 deg.C (32.00 deg.F), the indication on the display unit ranges from 0 deg.C (32.00 deg.F) to 25 deg.C (77.00 deg.F) approximately.
5. Close-up
Subtask 32-47-18-860-052-A
A. Aircraft Maintenance Configuration
   (1) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
Subtask 32-47-18-942-050-A
B. Removal of Equipment
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the SAFETY BARRIER(S)S.
   (3) Remove the WARNING NOTICE(S).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.04.01 00:50:27 UTC
"Aviabrain" 2025