Installation of the Steady Bearings

TASK 27-54-44-400-001-A
Installation of the Steady Bearings

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.

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

FIN: 6207CM
FIN: 6213CM
FIN: 6257CM
FIN: 6263CM

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 3M (10 FT)- ADJUSTABLE
No specific	AR	SAFETY BARRIER(S)
No specific	AR	WARNING NOTICE(S)
No specific	Torque wrench: range to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )
No specific	Torque wrench: range to between 0.8 and 0.7 m.daN (70.80 and 61.95 lbf.in )

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.06AEA1)	Polysulfide Sealant-Low Adhesion Brushable -
(Material No.06AEB2)	Polysulfide Sealant-Low Adhesion Fillet Structure
(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. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
9	COTTER PIN	AIPC 27-54-44-01-010

D. Referenced Information

REFERENCE	DESIGNATION
TASK 27-50-00-400-003-A	Installation of the Lock-Torque Shaft - Flaps and Slats (98D27504030001)
TASK 27-54-00-710-001-A	Operational Test of the Flap System
TASK 27-54-45-000-004-A	Removal of the Torque Shaft
TASK 27-54-45-000-007-A	Removal of the Torque Shafts
TASK 27-54-45-400-004-A	Installation of the Torque Shaft
TASK 27-54-45-400-007-A	Installation of the Torque Shafts
Steady Bearings - Flap Power Transmission

3. Job Set-up
Subtask 27-54-44-941-054-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 the cockpit to tell persons not to operate the landing-gear doors.
(3) Make sure that the WARNING NOTICE(S) is on panel 114VU to tell persons not to operate the flap/slat controls.

Subtask 27-54-44-860-052-A

B. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is below the applicable torque shaft.
(2) Make sure that the applicable torque shafts (1) are removed (Ref. AMM TASK 27-54-45-000-004), (Ref. AMM TASK 27-54-45-000-007):
(a) FOR [6207CM] (FLAP STEADY BEARING)
the torque shaft 6208CM
(b) FOR [6257CM] (FLAP STEADY BEARING)
the torque shaft 6258CM
(c) FOR [6213CM] (FLAP STEADY BEARING)
the torque shaft 6214CM
(d) FOR [6263CM] (FLAP STEADY BEARING)
the torque shaft 6264CM.
(3) Make sure that the 98D27803000000 LOCKING TOOL-FLAP SLAT LEVER,INT. POSITION is installed on the flap/slat control lever on panel 114VU.
(4) Make sure that the 98D27504030001 LOCK-TORQUE SHAFT (FLAPS AND SLATS) WITH CLAMP-PIVOT is installed on a flap torque-shaft outboard of the removed component (Ref. AMM TASK 27-50-00-400-003).

Subtask 27-54-44-865-050-A

C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B07
** ON A/C NOT FOR ALL
49VU	FLIGHT CONTROLS/FLP/CTL AND MONG/SYS1	6CV	B02
** ON A/C ALL
121VU	FLIGHT CONTROLS/FLP/CTL AND/MONG/SYS2	8CV	Q21

4. Procedure

CAUTION: BE CAREFUL WHEN YOU DO MAINTENANCE TASKS ON THE WING TRAILING EDGE:

DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE RACEWAYS.
DO NOT CAUSE DAMAGE TO THE ELECTRICAL CABLE INSTALLATIONS.
MAKE SURE THAT THE ELECTRICAL CABLES ARE INSTALLED CORRECTLY. INCORRECT INSTALLATION CAN CAUSE DAMAGE.

Subtask 27-54-44-420-054-A

A. Preparation for Installation
(1) Clean the component interface and/or the adjacent area with a 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.

Subtask 27-54-44-420-052-A

B. Installation of the Steady Bearing Assembly
(1) Apply a layer of Polysulfide Sealant-Low Adhesion Brushable - (Material No.06AEA1) or Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) to the:

mating faces of the steady bearing (5) and the structure
shanks of the bolts (4).

(2) Install the steady bearing (5) on the torque shaft. Attach the steady bearing (5) to the structure with the bolts (4) and the nuts (6).
(3) Attach the steady bearing (5) to the torque shaft with the bolt (2), the washers (3) and the nut (10).
(4) TORQUE the nuts (6) to between 0.8 and 0.7 m.daN (70.80 and 61.95 lbf.in )

.
(5) TORQUE the nut (10) to between 0.44 and 0.36 m.daN (38.94 and 31.86 lbf.in )

.
(6) Safety the nut (10) with a new AIPC 27-54-44-01-010 COTTER PIN (9).
(7) Apply a layer of Corrosion Preventive Compound-Heavy Duty Soft Film - (Material No.12ACC1) to the:

bolts (2) and (4)
nuts (6) and (10)
washers (3) and the cotter pin (9)
flange of the steady bearing (5).

Subtask 27-54-44-410-051-A

C. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable torque shaft (1) (Ref. AMM TASK 27-54-45-400-004), (Ref. AMM TASK 27-54-45-400-007):
(a) FOR [6207CM] (FLAP STEADY BEARING)
install the torque shaft 6208CM
(b) FOR [6257CM] (FLAP STEADY BEARING)
install the torque shaft 6258CM
(c) FOR [6213CM] (FLAP STEADY BEARING)
install the torque shaft 6214CM
(d) FOR [6263CM] (FLAP STEADY BEARING)
install the torque shaft 6264CM.

Subtask 27-54-44-710-050-A

D. Test
(1) Do an operational test of the flap system (Ref. AMM TASK 27-54-00-710-001).

5. Close-up
Subtask 27-54-44-942-050-A

A. 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] 2026.04.01 07:00:16 UTC