Installation of the Cable Quadrant

TASK 27-21-46-400-001-A
Installation of the Cable Quadrant

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:

THE FLIGHT CONTROLS
THE FLIGHT CONTROL SURFACES
THE LANDING GEAR AND THE RELATED DOORS
COMPONENTS THAT MOVE.

MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.

WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROLS SURFACES ARE CLEAR. MOVEMENT OF FLIGHT CONTROLS CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

ZONE: 140
ZONE: 310
ZONE: 325

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 10M (33 FT) - ADJUSTABLE
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	WARNING NOTICE(S)

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.03GBD1)	Synthetic Oil base Grease-General Purpose Lithium Thickened -
(Material No.03HBD9)	Synthetic Ester base Grease-General Purpose Low Temp -
(Material No.08BBB1)	Non Aqueous Cleaner-- Petroleum Based -
(Material No.12AGC2)	Corrosion Preventive Compound-- Soft Film System

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
140	CENTER WING
310	FUSLG TAIL SECTION AFT OF AFT PRESS BHD
325	VERTICAL STABILIZER TRAILING EDGE
312AR, 325AL, 325BL, 811
231BG, 231JG
241BF, 241FF

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
5	COTTER PINS	AIPC 27-21-04-07-060
15	COTTER PIN	AIPC 27-21-04-21-120
5	COTTER PINS	AIPC 27-21-84-05-010
15	COTTER PIN	AIPC 27-21-84-08-010

E. Referenced Information

REFERENCE	DESIGNATION
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 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 27-21-00-820-002-A	Adjustment of the Rudder Control-Cables Length
TASK 27-24-00-710-001-A	Operational Test of the Rudder Hydraulic Actuation
TASK 29-00-00-864-001-A	Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action
TASK 51-75-13-916-002-A	Repair to a layer of Corrosion Preventive Compound
TASK 52-41-00-010-002-A	Open the Avionics Compartment Doors for Access
TASK 52-41-00-410-002-A	Close the Avionics Compartment Doors after Access
TASK 53-22-12-400-001-A	Installation of the Cabin Floor Panels
TASK 53-32-12-400-002-A	Installation of the Cabin Floor Panels
Location of the Rudder Control Rigging Pin
Location of the Rigging Pins
Cable Quadrant ** ON A/C NOT FOR ALL
Cable Quadrant ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 27-21-46-860-051-A ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration

Location of the Rudder Control Rigging Pin ** ON A/C NOT FOR ALL

Location of the Rigging Pins ** ON A/C NOT FOR ALL

(1) Make sure that the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE is in position at zone 325.
(2) Make sure that the access panels 325AL and 325BL at the trailing edge of the vertical stabilizer are open.
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at zone 312.
(4) Make sure that the access door 312AR is open.
(5) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position under the access door 811.
(6) Make sure that the access door 811 is open (Ref. AMM TASK 52-41-00-010-002).
(7) Make sure that the floor panels 241BF and 241FF are removed.
(8) Make sure that the rudder pedals are in the neutral position.
(9) Make sure that the RUD TRIM indicator on the center pedestal, on the panel 110VU shows 0.
(10) Make sure that the warning notices are in position in the cockpit to tell persons not to operate the flight controls.
(11) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
(12) Make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).
(13) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green, the Yellow and the Blue hydraulic systems:

in the cockpit on the hydraulic section 40VU of the overhead panel,
on the ground service panels of the Green, Yellow and Blue hydraulic systems.

(14) Make sure that the 98D27207548000 PIN-RIGGING (20) is in position in the mixer of the artifical feel unit.
(15) Make sure that the 98D27207547000 PIN-RIGGING (21) is in position in the cable quadrant (1)
(16) Make sure that the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (22) is in position in the interconnecting lever for the rudder pedals.

Subtask 27-21-46-860-051-B ** ON A/C NOT FOR ALL

A. Aircraft Maintenance Configuration

Location of the Rudder Control Rigging Pin ** ON A/C NOT FOR ALL

Location of the Rigging Pins ** ON A/C NOT FOR ALL

(1) Make sure that the ACCESS PLATFORM 10M (33 FT) - ADJUSTABLE is in position at zone 325.
(2) Make sure that the access panels 325AL and 325BL at the trailing edge of the vertical stabilizer are open.
(3) Make sure that the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE is in position at zone 312.
(4) Make sure that the access door 312AR is open.
(5) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position under the access door 811.
(6) Make sure that the access door 811 is open (Ref. AMM TASK 52-41-00-010-002).
(7) Make sure that the floor panels 231BG and 231JG are removed.
(8) Make sure that the rudder pedals are in the neutral position.
(9) Make sure that the RUD TRIM indicator on the center pedestal, on the panel 110VU shows 0.
(10) Make sure that the warning notices are in position in the cockpit to tell persons not to operate the flight controls.
(11) Make sure that the hydraulic systems are depressurized and put them in the maintenance configuration
(Ref. AMM TASK 29-00-00-864-001).
(12) Make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).
(13) Make sure that the WARNING NOTICE(S) are in position to tell persons not to pressurize the Green, the Yellow and the Blue hydraulic systems:

in the cockpit on the hydraulic section 40VU of the overhead panel,
on the ground service panels of the Green, Yellow and Blue hydraulic systems.

(14) Make sure that the 98D27207548000 PIN-RIGGING (20) is in position in the mixer of the artifical feel unit.
(15) Make sure that the 98D27207547000 PIN-RIGGING (21) is in position in the cable quadrant (1)
(16) Make sure that 98A27901002000 PIN-RIGGING,RUDDER CONTROL (22) is in position in the interconnecting lever for the rudder pedals.

Subtask 27-21-46-865-051-A

B. 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	AUTO FLT/FAC1/28VDC	5CC1	B04
49VU	AUTO FLT/FAC1/26VAC	14CC1	B03
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
49VU	AUTO FLT/FAC1/26VAC	14CC1	H09
** ON A/C ALL
121VU	AUTO FLT/RUDDER/TRIM/IND	15CC	M20
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19
121VU	AUTO FLT/FAC2/26VAC	14CC2	M18

4. Procedure
Subtask 27-21-46-210-050-A

A. Preparation for Installation
(1) Clean the interface of the aircraft structure at the cable quadrant position with Non Aqueous Cleaner-- Petroleum Based - (Material No.08BBB1) and let it dry.
(2) Examine the work area.
(a) Make sure that:

the structure,
the paint work,
the control rod (2),
the cables (10),

are clean and show no damage.
(3) Examine the attachment components.
(a) Make sure that:

the screws (8),(9),(19),
the nuts (6),(16),
the bush (18),
the eye-end bearing of the control rod (2)

are clean and show no damage.
(4) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened - (Material No.03GBD1) or the Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the threads of the screws (8),(9),(19).
(5) Apply Synthetic Oil base Grease-General Purpose Lithium Thickened - (Material No.03GBD1) or the Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the bush (18).
(6) Apply a thin layer of Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) (Ref. AMM TASK 51-75-13-916-002) to the interface of the structure at the cable quadrant position.
(7) Apply a thin layer of Corrosion Preventive Compound-- Soft Film System (Material No.12AGC2) (Ref. AMM TASK 51-75-13-916-002) to the interface of the replacement cable quadrant (1).
(8) Make sure that the rigging pin (21) is installed in the replacement cable quadrant (1).

Subtask 27-21-46-420-050-A

B. Installation of the Cable Quadrant
(1) Connect the cable quadrant (1) to the aircraft structure.
(a) Put the cable quadrant (1) in position at the aircraft structure.
(b) Hold the cable quadrant (1) in position.
(c) Install the screws (8) at the top connection positions.
(d) Install the screws (9) at the bottom connection positions.
(e) Install the washers (7) and the nuts (6) on the screws (8),(9).
(f) Tighten the nuts (6).
(g) Safety the nuts (6) with the AIPC 27-21-04-07-060 COTTER PINS (5) or AIPC 27-21-84-05-010 COTTER PINS (5).
(2) Connect the control rod (2) to the cable quadrant (1).
(a) Install the bush (18) in the lever arm (4).
(b) Put the control rod (2) in position in the lever arm (4).
(c) Align the hole in the eye-end bearing of the control rod (2) with the hole in the lever arm (4).
(d) Install the screw (19).
(e) Install the washer (17) and the nut (16) to the screw (19).
(f) Tighten the nut (16).
(g) Safety the nut (16) with the AIPC 27-21-04-21-120 COTTER PIN (15) or AIPC 27-21-84-08-010 COTTER PIN (15).
(3) Connect the cables (10) to the cable quadrant (1).
(a) Release the cables (10).
(b) Put the cables (10) in position on the cable quadrant (1).
(c) Put the ends of the cables (10) in position in the levers (3).
(d) Make sure that the adjustment of the screws (11) is correct (Ref. AMM TASK 27-21-00-820-002).
(e) Turn the turnbuckles (31) to apply some tension to the cables (10).

Subtask 27-21-46-865-052-A

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	B04
49VU	AUTO FLT/FAC1/26VAC	14CC1	B03
** ON A/C NOT FOR ALL
49VU	AUTO FLT/FAC1/28VDC	5CC1	H10
49VU	AUTO FLT/FAC1/26VAC	14CC1	H09
** ON A/C ALL
121VU	AUTO FLT/RUDDER/TRIM/IND	15CC	M20
121VU	AUTO FLT/FAC2/28VDC	5CC2	M19
121VU	AUTO FLT/FAC2/26VAC	14CC2	M18

Subtask 27-21-46-080-050-A

D. Preparation for the Test

Location of the Rudder Control Rigging Pin

Location of the Rigging Pins

(1) Remove the 98D27207547000 PIN-RIGGING (21) from the cable quadrant.
(2) Remove the 98D27207548000 PIN-RIGGING (20) from the mixer of the artifical feel unit.
(3) Remove the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (22) from the interconnecting lever for the rudder pedals.
(4) On the overhead panel 23VU, push the FLT CTL/FAC 1 pushbutton switch. The OFF legend goes off.
(5) On the overhead panel 24VU, push the FLT CTL/FAC 2 pushbutton switch. The OFF legend goes off.
(6) Do the adjustment of the rudder cable tension (Ref. AMM TASK 27-21-00-820-002).

NOTE: Make sure that the locking clips (30) are correctly installed in the turnbuckles (31) after the adjustment of the cable tension.

Subtask 27-21-46-710-050-A

E. Do an operational test of the rudder mechanical control (Ref. AMM TASK 27-24-00-710-001).

5. Close-up
Subtask 27-21-46-410-050-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 access panels 325AL 325BL.
(3) Close the access door 312AR.
(4) Close the access door 811 (Ref. AMM TASK 52-41-00-410-002).
(5) Install the floor panels 241BF 241FF (Ref. AMM TASK 53-32-12-400-002).
(6) Remove the WARNING NOTICE(S).
(7) Remove the access platform(s).

Subtask 27-21-46-410-050-B ** 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 access panels 325AL 325BL.
(3) Close the access door 312AR.
(4) Close the access door 811 (Ref. AMM TASK 52-41-00-410-002).
(5) Install the floor panels 231BG 231JG (Ref. AMM TASK 53-22-12-400-001).
(6) Remove the WARNING NOTICE(S).
(7) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:48:33 UTC