W DOC AIRBUS | AMM A320F

Installation of the Filter of the Fan-Air-Valve Control Thermostat

TASK 36-11-43-400-003-A
Installation of the Filter of the Fan-Air-Valve Control Thermostat

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
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 4M (13 FT)
No specific
2
GAGE 5 BAR (75 PSI) - PRESSURE
No specific
AR
PLUG - BLANKING
No specific
1
SOCKET DIA 1/2 IN (12.7 MM)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 2 and 1.8 m.daN (14.75 and 13.27 lbf.ft ) T
98D36103000000
1
PRESSURE LOSS TEST
M65723281
1
TEST BOX
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.03PBB1)
Lubricant-Anti Seize High Temp. -
(Material No.14QDB1)
Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [7170HM1] (THERMOSTAT-FAN AIR VALVE CTL)
413DT
413CL, 413DL, 414CR
FOR [7170HM2] (THERMOSTAT-FAN AIR VALVE CTL)
423CL, 423DL, 424CR
423DT
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
4
FILTER
AIPC 36-11-43-01-030
1
SEALS
AIPC 36-11-43-01-040
2
SEAL
AIPC 36-11-43-01-040
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 36-11-43-100-001-A
Remove the Thermostat-Filter of the Fan Air Valve-Control for Cleaning
TASK 49-00-00-860-006-A
APU Shutdown by External Power
TASK 49-00-00-860-006-A-01
APU Shutdown by Batteries
TASK 49-00-00-860-009-A
APU Shutdown by External Power (131-9(A))
TASK 49-00-00-860-009-A-01
APU Shutdown by Batteries (131-9(A))
F P/N M65723281 Tool Installation
F P/N 98D36103000000 Tool Installation
F Thermostat Filter ** ON A/C NOT FOR ALL
F Thermostat Filter ** ON A/C NOT FOR ALL
F Thermostat Filter ** ON A/C NOT FOR ALL
FOR [7170HM1] (THERMOSTAT-FAN AIR VALVE CTL)
TASK 54-52-11-000-002-A
Removal of the Access Panels
TASK 54-52-11-000-002-B
Removal of the Access Panels
TASK 54-52-11-400-002-A
Installation of the Access Panels
TASK 54-52-11-400-002-B
Installation of the Access Panels
FOR [7170HM2] (THERMOSTAT-FAN AIR VALVE CTL)
TASK 54-52-11-000-002-A
Removal of the Access Panels
TASK 54-52-11-000-002-B
Removal of the Access Panels
TASK 54-52-11-400-002-A
Installation of the Access Panels
TASK 54-52-11-400-002-B
Installation of the Access Panels
3. Job Set-up
Subtask 36-11-43-860-052-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002) or (Ref. AMM TASK 24-41-00-861-002).
   (2) Make sure that engine 1(2) shutdown occurred for a minimum of five minutes before you do this procedure.
NOTE: To prevent damage to the thermostat, we recommend that you wait until it is at the ambient temperature before you start the work.
   (3) In the cockpit, on AIR COND panel 30VU:
  • Make sure that ENG 1(2) BLEED pushbutton-switch is released (the OFF legend is on).
  • Make sure that the APU BLEED pushbutton-switch is released (the ON legend is off).
  • Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the pneumatic system.
   (4) On ENG panel 115VU:
  • Make sure that the WARNING NOTICE(S) is in position to tell persons not to start engine 1(2).
   (5) On the HP ground connector:
  • Make sure that the WARNING NOTICE(S) is in position to tell persons not to pressurize the pneumatic system.
   (6) On the ENG section of panel 50VU:
  • Make sure that the ON legend of ENG/FADEC GND PWR 1(2) pushbutton-switch is off.
  • Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
   (7) Make sure that the ACCESS PLATFORM 4M (13 FT) is in position below the engine.
Subtask 36-11-43-010-055-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the access panels are removed:
     (a) FOR [7170HM1] (THERMOSTAT-FAN AIR VALVE CTL)
413CL, 414CR and 413DL (Ref. AMM TASK 54-52-11-000-002).
     (b) FOR [7170HM2] (THERMOSTAT-FAN AIR VALVE CTL)
423CL, 424CR and 423DL (Ref. AMM TASK 54-52-11-000-002).
Subtask 36-11-43-010-055-B ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the access panel is removed:
     (a) FOR [7170HM1] (THERMOSTAT-FAN AIR VALVE CTL)
413DT (Ref. AMM TASK 54-52-11-000-002).
     (b) FOR [7170HM2] (THERMOSTAT-FAN AIR VALVE CTL)
423DT (Ref. AMM TASK 54-52-11-000-002).
Subtask 36-11-43-865-059-A ** ON A/C NOT FOR ALL
C. 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
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
4. Procedure
Subtask 36-11-43-790-054-A ** ON A/C NOT FOR ALL
A. Leak Test
F P/N M65723281 Tool Installation ** ON A/C NOT FOR ALL
F P/N 98D36103000000 Tool Installation ** ON A/C NOT FOR ALL
NOTE: It is not necessary to do this test if you install a new filter or a filter cleaned with (Ref. AMM TASK 36-11-43-100-001).
NOTE: You can use a M65723281 TEST BOX (T06A) or a 98D36103000000 PRESSURE LOSS TEST (4) to do this test.
   (1) If you use the M65723281 TEST BOX (T06A), install a GAGE 5 BAR (75 PSI) - PRESSURE on the M65723281 TEST BOX (T06A).
   (2) Put the banjo tube (3) in position with the new AIPC 36-11-43-01-040 SEALS (1) on the M65723281 TEST BOX (T06A) or the 98D36103000000 PRESSURE LOSS TEST (4).
   (3) Install the filter (2).
   (4) Apply a pressure of 4 -0.1 bar or +0.1 bar (58.02 -1.45 psi or +1.45 psi) to the M65723281 TEST BOX (T06A) or to the 98D36103000000 PRESSURE LOSS TEST (4):
     (a) Do a check of the pressure (P1) on the pressure gauge.
   (5) Make sure that the pressure (P2) is less than or equal to 0.1 bar (1.45 psi) with the M65723281 TEST BOX (T06A) or with the 98D36103000000 PRESSURE LOSS TEST (4).
Subtask 36-11-43-420-055-A ** ON A/C NOT FOR ALL
B. Installation of the Filter of the Fan-Air-Valve Control Thermostat
F Thermostat Filter ** ON A/C NOT FOR ALL
F Thermostat Filter ** ON A/C NOT FOR ALL
F Thermostat Filter ** ON A/C NOT FOR ALL
   (1) If you use the APU to energize the electrical circuits, stop the APU:
   (2) In the cockpit, on the SD bleed page:
     (a) Make sure that the pressure and the temperature of the bleed-air duct system are in the ambient conditions.
WARNING: MAKE SURE THAT THE PNEUMATIC SYSTEM IS DEPRESSURIZED BEFORE YOU START WORK. PRESSURIZED AIR CAN CAUSE INJURY TO PERSONNEL.
WARNING: DO NOT TOUCH THE UNIT UNTIL IT IS SUFFICIENTLY COOL TO PREVENT BURNS WHEN YOU DO THE MAINTENANCE TASK(S).
   (3) Clean the component interfaces and/or the adjacent area.
   (4) Do a visual inspection of the component interfaces and/or the adjacent area.
   (5) Remove the PLUG - BLANKING from the opening of the thermostat (3).
   (6) Install a new AIPC 36-11-43-01-040 SEAL (2) on the filter (4):
     (a) Make sure that the convex side of the new seal (2) touches the filter (4).
CAUTION: BE VERY CAREFUL NOT TO PUT TOO MUCH LUBRICANT ON THE FITTING. TOO MUCH LUBRICANT CAN CAUSE:
  • CLOGGING OF THE JET INSIDE THE PRESSURE REGULATING VALVE BODY (AND THUS HIGH PRESSURE SENT TO THE FAN AIR VALVE)
  • POLLUTION IN THE PNEUMATIC SYSTEMED HOSE
  • AN ODOR TO OCCUR IN THE CABIN.
NOTE: It is not necessary to apply Lubricant-Anti Seize High Temp. - (Material No.03PBB1) if you install a new filter (4) with part number 398-84.
   (7) Apply a thin layer of Lubricant-Anti Seize High Temp. - (Material No.03PBB1) to the threads of the filter (4) as follows:
     (a) Use a small brush and get a very small quantity of Lubricant-Anti Seize High Temp. - (Material No.03PBB1) .
NOTE: You can use a brush of 5 mm width.
     (b) Make sure that you do not put the brush into Lubricant-Anti Seize High Temp. - (Material No.03PBB1) .
NOTE: If you put the brush into Lubricant-Anti Seize High Temp. - (Material No.03PBB1) , there will be a large quantity of lubricant on the brush.
     (c) Apply a small quantity of Lubricant-Anti Seize High Temp. - (Material No.03PBB1) only on the threads of the filter with the brush:
       1 Make sure that you do not apply Lubricant-Anti Seize High Temp. - (Material No.03PBB1) on areas other than the threads of the filter.
       2 Make sure that you can see the threads of the filter after you apply Lubricant-Anti Seize High Temp. - (Material No.03PBB1) .
   (8) Use a SOCKET DIA 1/2 IN (12.7 MM) and install the filter (4) or a new AIPC 36-11-43-01-030 FILTER (4).
   (9) TORQUE the filter (4) to between 2 and 1.8 m.daN (14.75 and 13.27 lbf.ft ) T.
WARNING: USE GOGGLES AND GLOVES WHEN YOU REMOVE OR INSTALL LOCKWIRE. EACH TIME YOU CUT LOCKWIRE, REMOVE AND DISCARD IT IMMEDIATELY. LOOSE LOCKWIRE CAN CUT YOU OR MAKE YOU BLIND, AND/OR CAN CAUSE DAMAGE.
   (10) Safety the filter (4) with a 14QDB1Wire-Locking Dia: 0.5 mm (0.020 inch) CRES Nickel Alloy -.
5. Close-up
Subtask 36-11-43-865-060-A ** ON A/C NOT FOR ALL
A. 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
122VUAIR BLEED/ENG 2/CTL3HA2Z23
122VUAIR BLEED/ENG 2/MONG2HA2Z22
Subtask 36-11-43-410-052-A ** ON A/C NOT FOR ALL
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the access panels:
     (a) FOR [7170HM1] (THERMOSTAT-FAN AIR VALVE CTL)
413CL, 414CR and 413DL (Ref. AMM TASK 54-52-11-400-002).
     (b) FOR [7170HM2] (THERMOSTAT-FAN AIR VALVE CTL)
423CL, 424CR and 423DL (Ref. AMM TASK 54-52-11-400-002).
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 36-11-43-410-052-B ** ON A/C NOT FOR ALL
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the access panels:
     (a) FOR [7170HM1] (THERMOSTAT-FAN AIR VALVE CTL)
413DT (Ref. AMM TASK 54-52-11-400-002).
     (b) FOR [7170HM2] (THERMOSTAT-FAN AIR VALVE CTL)
423DT (Ref. AMM TASK 54-52-11-400-002).
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
Subtask 36-11-43-862-051-A ** ON A/C NOT FOR ALL
C. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002) or (Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 12:38:24 UTC
"Aviabrain" 2025