W DOC AIRBUS | AMM A320F

Installation of the Track Lock Cover [PW11]

TASK 78-32-38-400-801-A
Installation of the Track Lock Cover

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
WARNING: WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.
WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 400
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
LIGHT SOURCE - HEAT
No specific
1
SCRAPER - NON METALLIC
No specific
Torque wrench: range to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T
No specific
Torque wrench: range to between 50 and 45 lbf.in (0.57 and 0.51 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.PU1-0001)
cloth
(Material No.PU1-0045)
abrasive paper, aluminum oxide, 220-grit
(Material No.PU1-0075)
scour pad
(Material No.PU2-0001)
alcohol, isopropyl
(Material No.PU3-0002)
sealant
(Material No.PU3-0003)
sealant
(Material No.PU3-0015)
catalyst
(Material No.PU5-0004)
release agent
(Material No.PU5-0004A)
release agent
PU5-0004A
release agent
(Material No.PU5-0004B)
release agent
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
400
POWER PLANT, NACELLES AND PYLONS
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR, 451AL, 452AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR, 461AL, 462AR
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 71-00-00-860-833-A
Procedure to Prevent Engine Motoring
TASK 71-13-00-010-802-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-802-A
Closing of the Fan Cowl Doors
TASK 78-30-00-040-805-A
Deactivation of the Thrust Reverser System for Ground Maintenance
TASK 78-30-00-440-805-A
Reactivation of the Thrust Reverser System after Ground Maintenance
TASK 78-36-00-010-802-A
Opening of the Thrust Reverser Cowl-Doors
TASK 78-36-00-410-802-A
Closing of the Thrust Reverser Cowl-Doors
F Track Lock Cover
3. Job Set-up
Subtask 78-32-38-941-052-A ** ON A/C NOT FOR ALL
A. Safety Precautions
   (1) Make sure that you did the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
Subtask 78-32-38-010-053-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
Subtask 78-32-38-040-052-A ** ON A/C NOT FOR ALL
C. Deactivation of the Thrust Reverser System for Ground Maintenance
WARNING: YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
   (1) Make sure that you did the deactivation of the thrust reverser system for ground maintenance (Ref. AMM TASK 78-30-00-040-805).
Subtask 78-32-38-010-054-A ** ON A/C NOT FOR ALL
D. Get Access
   (1) Make sure that the thrust reverser cowl-doors are open (Ref. AMM TASK 78-36-00-010-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
4. Procedure
CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
NOTE: This procedure is for the installation of the left track lock cover. The procedure for the right track lock cover is the same.
Subtask 78-32-38-420-051-A ** ON A/C NOT FOR ALL
A. Installation of the Track Lock Cover
   (1) Removal of the protection covers:
CAUTION: REMOVE THE PROTECTION COVERS FROM THE OPENINGS AS NECESSARY TO PREVENT ENGINE DAMAGE.
     (a) Make sure that you remove all the necessary COVER - PROTECTION to prevent damage to the engine.

PRE SB GRAA320NEO-A-78-30-0008-00001-930A-D

   (2) Install the track lock cover (1) as follows:
     (a) If the track lock cover (1) has a gasket, go to step 4.A.(3).
     (b) Examine sealant on the mating surface of the latch beam which the track lock cover (1) attaches to.
     (c) Look for damaged or missing sealant.
     (d) If you find damaged or missing sealant, replace sealant as follows:
       1 Remove sealant from the mating surface of the latch beam with the SCRAPER - NON METALLIC.
       2 Clean the mating surfaces with a clean cloth (Material No.PU1-0001) and the PU2-0001alcohol, isopropyl.
       3 Remove the PU2-0001alcohol, isopropyl with a clean cloth (Material No.PU1-0001) before it becomes dry.
CAUTION: MAKE SURE THAT THE RELEASE AGENT DOES NOT GET ON OTHER AREAS OF THE THRUST REVERSER DOOR. APPLY THE RELEASE AGENT AWAY FROM THE DOOR OR PUT MASKING TAPE ON THE ADJACENT AREAS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, DAMAGE TO THE OTHER SURFACES CAN OCCUR.
       4 Apply two layers of the release agent (Material No.PU5-0004) or alternate PU5-0004A release agent or alternate release agent (Material No.PU5-0004B) to the mating surfaces of the track lock cover (1). Refer to the instructions of the manufacturer.
       5 Apply two layers of the release agent (Material No.PU5-0004) or alternate to the shanks of the four bolts (2). Refer to the instructions of the manufacturer.
       6 Let the release agent (Material No.PU5-0004) or alternate fully dry. Refer to the instructions of the manufacturer.
       7 Apply a layer of the sealant (Material No.PU3-0002) to the mating surfaces of the latch beam:
         a Make the layer between 0.020 in. (0.508 mm) and 0.030 in. (0.762 mm) thick.
         b Make sure that sealant does not block the fastener holes for the track lock cover (1).
       8 Install the track lock cover (1) with the four bolts (2).
       9 TORQUE the bolts (2) to between 25 and 20 lbf.in (0.28 and 0.23 m.daN ) T.
       10 Remove the unwanted sealant with a clean cloth (Material No.PU1-0001) and the PU2-0001alcohol, isopropyl.
         a Do not clean sealant or mold release agent from below the track lock cover (1).
       11 Let the sealant (Material No.PU3-0002) cure for at least six hours before you put the aircraft into operation. Refer to the instructions of the manufacturer.
NOTE: After six hours, the sealant (Material No.PU3-0002) will be in the tack-free condition.
       12 Remove the four bolts (2) and remove the track lock cover (1).
         a Make sure that sealant makes a smooth, even surface.
         b If you find holes in sealant, fill the hole with the sealant and do steps 4.A.(2)(d)7_ thru 4.A.(2)(d)12_ again.
       13 Install the track lock cover (1) on the latch beam with the four bolts (2).
       14 TORQUE the bolts (2) to between 50 and 45 lbf.in (0.57 and 0.51 m.daN ) T.

END OF PRE SB GRAA320NEO-A-78-30-0008-00001-930A-D

POST SB GRAA320NEO-A-78-30-0008-00001-930A-D

   (3) Install the track lock cover (3) as follows:
     (a) Install the track lock cover (3) on the latch beam with the four bolts (4).
     (b) Tighten the bolts (4) with your hand until they are tight. Then tighten the bolts (4) one more turn.
     (c) Examine the gasket on the track lock cover (3).
     (d) Make sure that there are no spaces between the gasket and the latch beam.
     (e) If a space goes through the width of the gasket, fill the space with sealant as follows:
       1 Remove the four bolts (4) that attach the track lock cover (3) to the latch beam.
CAUTION: IF YOU REMOVE UNWANTED SEALANT FROM THE GASKET ON THE TRACK LOCK COVER, BE CAREFUL NOT TO CAUSE DAMAGE TO THE GASKET.
       2 If necessary, remove unwanted sealant from the gasket on the track lock cover (3) with the SCRAPER - NON METALLIC.
       3 Lightly abrade the surface of the latch beam where the sealant will touch with the scour pad (Material No.PU1-0075) or PU1-0045abrasive paper, aluminum oxide, 220-grit.
       4 Clean the mating surfaces with a clean cloth (Material No.PU1-0001) and the PU2-0001alcohol, isopropyl.
       5 Remove the PU2-0001alcohol, isopropyl with a clean cloth (Material No.PU1-0001) before it becomes dry.
       6 Clean the surface again with the cloth (Material No.PU1-0001) .
CAUTION: MAKE SURE THAT THE RELEASE AGENT DOES NOT GET ON OTHER AREAS OF THE THRUST REVERSER DOOR. APPLY THE RELEASE AGENT AWAY FROM THE DOOR OR PUT MASKING TAPE ON THE ADJACENT AREAS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, DAMAGE TO THE OTHER SURFACES CAN OCCUR.
       7 Apply two layers of the release agent (Material No.PU5-0004) or alternate release agent (Material No.PU5-0004A) or alternate release agent (Material No.PU5-0004B) to the surface of the latch beam where the sealant will touch. Refer to the instructions of the manufacturer.
       8 Apply two layers of the release agent (Material No.PU5-0004) or alternate to the shanks of the four bolts (4). Refer to the instructions of the manufacturer.
       9 Let the release agent (Material No.PU5-0004) or alternate fully dry. Refer to the instructions of the manufacturer.
       10 Mix the sealant (Material No.PU3-0003) and the catalyst (Material No.PU3-0015) . Refer to the instructions of the manufacturer.
       11 Apply a layer of the sealant (Material No.PU3-0003) mixture to the spaces between the gasket and the latch beam that go through the width of the gasket.
         a Make sealant mixture smooth with the gasket.
       12 Install the track lock cover (3) on the latch beam with the four bolts (4).
       13 Tighten the bolts (4) with your hand until they are tight. Then tighten the bolts (4) one more turn.
       14 Clean the unwanted sealant (Material No.PU3-0003) from the latch beam with the cloth (Material No.PU1-0001) before sealant dries.
       15 Let the sealant (Material No.PU3-0003) mixture fully cure before you put the track lock cover (3) into operation. Refer to the instructions of the manufacturer.
         a To make the curing process faster, increase the temperature of the sealant (Material No.PU3-0003) to between 140 deg.F (60.00 deg.C) and 150 deg.F (65.56 deg.C) for at least four hours.
         b Make sure that the relative humidity is 20 percent or greater during this time.
         c Use the LIGHT SOURCE - HEAT or equivalent as the heat source.

END OF POST SB GRAA320NEO-A-78-30-0008-00001-930A-D

5. Close-up
Subtask 78-32-38-410-052-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) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL, 452AR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL, 462AR.
Subtask 78-32-38-440-051-A ** ON A/C NOT FOR ALL
B. Do the reactivation of the thrust reverser system after ground maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-38-410-053-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
     (a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR.
     (b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR.
   (2) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 03:33:12 UTC
"Aviabrain" 2025