W DOC AIRBUS | AMM A320F

Installation of the PS12 Line and Sensor [CFML]

TASK 73-21-65-400-802-A
Installation of the PS12 Line and Sensor

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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 1M(3 FT)
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 46.4 and 42.1 lbf.in (0.52 and 0.48 m.daN ) T
No specific
Torque wrench: range to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2442)
engine oil
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL, 448AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
10
O-RING
EIPC 73-21-65-01-060
14
O-RING
EIPC 73-21-65-01-060
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 71-13-00-010-803-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-803-A
Closing of the Fan Cowl Doors
F Right PS12 Sensor
F Left PS12 Sensor
3. Job Set-up
Subtask 73-21-65-941-055-A
A. Safety Precautions
   (1) On the center pedestal, on ENG panel 115VU:
     (a) Make sure that the ENG/MODE selector switch is in the NORM position.
     (b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
     (c) Make sure that the WARNING NOTICE(S) are in position to tell persons not to operate:
  • The ENG/MODE selector switch, and
  • The ENG/MASTER 1(2) control switch.
   (2) On the ENG section of maintenance panel 50VU:
     (a) Make sure that the ON legend of the FADEC GND PWR/1(2) pushbutton switch is off.
     (b) Make sure that the WARNING NOTICE(S) is in position to tell persons not to energize FADEC 1(2).
Subtask 73-21-65-010-055-A
B. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
   (2) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
4. Procedure
Subtask 73-21-65-420-052-A
A. Installation of the PS12 Line and Sensor
   (1) Remove the COVER - PROTECTION and CAP - PROTECTION on all the openings, tubes, hoses and connectors.
   (2) Make sure that the mating faces are clean and clear of unwanted materials.
   (3) Installation of the right PS12 sensor.
F Right PS12 Sensor
     (a) Lubrication of the O-ring
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
       1 Lubricate the new EIPC 73-21-65-01-060 O-RING (10) with engine oil (Material No.CP2442) .
     (b) Install the new EIPC 73-21-65-01-060 O-RING (10) in the groove of the PS12 sensor (1).
     (c) Install the PS12 sensor (1) on the fan frame.
     (d) Tighten by hand the PS12 sensor (1).
     (e) TORQUE the PS12 sensor (1) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
     (f) Tighten by hand the coupling-nut (8) of the PS12 hose (9).
     (g) Tighten by hand the coupling-nut (2) of the PS12 tube (3).
     (h) Install the bolts (4) to the clamp (6).
     (i) Install the bolts (5) to the clamp (7).
     (j) Tighten by hand the bolts (4) and (5).
     (k) TORQUE the coupling-nut (2) of the PS12 tube (3) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
     (l) TORQUE the coupling-nut (8) of the PS12 hose (9) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
     (m) TORQUE the bolts (4) and (5) to between 46.4 and 42.1 lbf.in (0.52 and 0.48 m.daN ) T.
     (n) Safety the coupling-nut.
WARNING: USE PROTECTIVE 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.
       1 Safety the coupling-nut (2) on the PS12 sensor (1) with CP8001lockwire 0.032 in. (0.8 mm) dia..
   (4) Installation of the left PS12 sensor (11).
F Left PS12 Sensor
     (a) Lubricate the O-ring.
WARNING: USE PERSONAL PROTECTION EQUIPMENT. USE THE ENGINE OIL IN A WELL-VENTILATED AREA. ENGINE OIL IS TOXIC.
       1 Lubricate the new EIPC 73-21-65-01-060 O-RING (14) with engine oil (Material No.CP2442) .
     (b) Install the new EIPC 73-21-65-01-060 O-RING (14) in the groove of the PS12 sensor (11).
     (c) Install the PS12 sensor (11) on the fan frame.
     (d) Tighten by hand the PS12 sensor (11).
     (e) TORQUE the PS12 sensor (11) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
     (f) Tighten by hand the coupling-nut (12) of the PS12 tube (13).
     (g) TORQUE the coupling-nut (12) of the PS12 tube (13) to between 150 and 135 lbf.in (1.70 and 1.53 m.daN ) T.
     (h) Safety the coupling-nut.
WARNING: USE PROTECTIVE 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.
       1 Safety the coupling-nut (12) on the PS12 Sensor (11) with CP8001lockwire 0.032 in. (0.8 mm) dia..
5. Close-up
Subtask 73-21-65-942-050-A
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-803):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENGINE 1)
437AL 438AR
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENGINE 2)
447AL 448AR
   (3) Remove the access platform(s).
   (4) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 13:03:59 UTC
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