W DOC AIRBUS | AMM A320F

Installation of the Torque Shaft

TASK 27-84-45-400-010-A
Installation of the Torque Shaft

WARNING: MAKE SURE THAT THE FLIGHT CONTROL SAFETY-LOCKS AND THE WARNING NOTICES ARE IN POSITION.
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.
FIN: 6022CM
FIN: 6072CM
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
SAFETY BARRIER(S)
No specific
AR
SAFETY CLIP - CIRCUIT BREAKER
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.03FDB1)
Mineral Oil base Grease-Anti-Fretting Paste -
(Material No.08BAA9)
Non Aqueous Cleaner-General - -
(Material No.12ACC1)
Corrosion Preventive Compound-Heavy Duty Soft Film -
(Material No.14SBA1)
Textile-Lint free Cotton -
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [6022CM] (SLAT XMSN TORQUE SHAFT)
521AT
FOR [6072CM] (SLAT XMSN TORQUE SHAFT)
621AT
 D. Referenced Information
REFERENCE
DESIGNATION
TASK 27-50-00-400-003-A
Installation of the Lock-Torque Shaft - Flaps and Slats (98D27504030001)
TASK 27-80-00-866-004-A
Extending the Slats on the Ground
TASK 27-80-00-866-005-A
Retracting the Slats on the Ground
TASK 27-84-00-710-001-A
Operational Test of the Slat System
TASK 27-84-44-000-003-A
Removal of the Steady Bearing
TASK 27-84-44-400-003-A
Installation of the Steady Bearing
F Torque shafts - Slat Power Transmission
F Torque Shafts - Slat Power Transmission
F Torque Shafts - Slat Power Transmission
3. Job Set-up
Subtask 27-84-45-941-066-A
A. Safety Precautions
   (1) Make sure that the SAFETY BARRIER(S) are in position.
   (2) Make sure that the WARNING NOTICE(S) is in position to tell persons not to operate the slat controls.
Subtask 27-84-45-860-059-A
B. Aircraft Maintenance Configuration
   (1) Make sure that the slats are extended fully (Ref. AMM TASK 27-80-00-866-004).
   (2) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is on to the flap/slat control lever.
   (3) Make sure that a 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed (Ref. AMM TASK 27-50-00-400-003):
  • on the torque shaft inboard of the applicable component
  • on the torque shaft outboard of the applicable component.
   (4) Make sure that the access platform is in position below the applicable access panel 521AT(621AT).
   (5) Make sure that the applicable access panels 521AT(621AT) are removed.
   (6) Make sure that the applicable steady bearings have been removed (Ref. AMM TASK 27-84-44-000-003).
Subtask 27-84-45-865-081-A
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
4. Procedure
Subtask 27-84-45-420-079-A
A. Preparation for Installation
   (1) Clean the component interface and/or the adjacent area with Textile-Lint free Cotton - (Material No.14SBA1) made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
   (2) Do an inspection of the component interfaces and the adjacent area.
   (3) Make sure that the parts retained from the removed component are clean and in the correct condition.
   (4) Apply a thin layer of Mineral Oil base Grease-Anti-Fretting Paste - (Material No.03FDB1) to the torque shaft splines.
Subtask 27-84-45-420-080-A
B. Installation of the Torque Shaft 6022CM(6072CM)
   (1) Install the shaft (42) and attach it with the bolts (41) and the nuts (40).
   (2) TORQUE the nuts (40) to between 1.24 and 1.02 m.daN (109.73 and 90.27 lbf.in ) T.
   (3) Apply a layer of Corrosion Preventive Compound-Heavy Duty Soft Film - (Material No.12ACC1) to the:
  • Nuts (40)
  • Bolts (41)
  • Flange of the shaft (42).
   (4) Install the applicable steady bearing (43) (Ref. AMM TASK 27-84-44-400-003):
     (a) FOR [6022CM] (SLAT XMSN TORQUE SHAFT)
Install the steady bearing 6021CM
     (b) FOR [6072CM] (SLAT XMSN TORQUE SHAFT)
Install the steady bearing 6071CM.
   (5) Make sure that:
Subtask 27-84-45-710-060-A
C. Test
   (1) The an operational test of the slat power-transmission system (Ref. AMM TASK 27-84-00-710-001) is contained in the installation of the steady bearing (Ref. AMM TASK 27-84-44-000-003).
5. Close-up
Subtask 27-84-45-866-052-A
A. Extend the Flaps
   (1) Make sure that the slats are extended fully (Ref. AMM TASK 27-80-00-866-004).
Subtask 27-84-45-865-082-A
B. Open, safety and tag this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
Subtask 27-84-45-410-056-A
C. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Install the applicable access panel:
     (a) FOR [6022CM] (SLAT XMSN TORQUE SHAFT)
install 521AT
     (b) FOR [6072CM] (SLAT XMSN TORQUE SHAFT)
install 621AT.
Subtask 27-84-45-865-083-A
D. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB06
** ON A/C NOT FOR ALL
49VUFLIGHT CONTROLS/SLT/CTL AND MONG/SYS15CVB01
** ON A/C ALL
121VUFLIGHT CONTROLS/SLT/CTL/SYS27CVR21
Subtask 27-84-45-866-053-A
E. Retract the Slats
   (1) Retract the slats fully (Ref. AMM TASK 27-80-00-866-005).
Subtask 27-84-45-942-058-A
F. Removal of Equipment
   (1) Remove the safety barriers.
   (2) Remove the WARNING NOTICE(S).
   (3) Remove the access platform(s).
   (4) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
[Rev.10 from 2021] 2026.03.31 23:57:21 UTC
"Aviabrain" 2025