Functional Check of the Tension Regulator (Pointer within the Limits)

TASK 27-21-00-220-002-A
Functional Check of the Tension Regulator (Pointer within the Limits)

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.

CAUTION: MAKE SURE THAT THE AIRCRAFT IS IN THE TEMPERATURE CONDITIONS (STABLE AMBIENT TEMPERATURE) SPECIFIED IN THE AIRCRAFT MAINTENANCE CONFIGURATION PARAGRAPH. CHANGES IN THE TEMPERATURE CAN CAUSE INCORRECT MEASUREMENTS.

CAUTION: DO THIS PROCEDURE IN A HANGAR IF THERE ARE WIND GUSTS. WIND GUSTS CAN CAUSE DAMAGE TO THE LINKAGE WHEN THE RIGGING PINS ARE IN POSITION ON THE RUDDER CONTROL.

ZONE: 125
FIN: 103CM

1. Reason for the Job
Refer to the MPD TASK: 272145-01
FUNCTIONAL CHECK OF TENSION REGULATOR (POINTER WITHIN THE LIMITS)
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT)
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	AR	MIRROR - INSPECTION, FLEXIBLE
No specific	AR	THERMOMETER
No specific	AR	WARNING NOTICE(S)
98A27901002000	1	PIN-RIGGING,RUDDER CONTROL
98D27203500000	1	BRACKET RUD CTL REG
98D27207516000	2	PIN-RIGGING,SET
98D27207547000	2	PIN-RIGGING

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
125	LATERAL AVIONIC COMPARTMENT
312AR, 811, 812, 824, 825, 826

C. Referenced Information

REFERENCE	DESIGNATION
TASK 12-33-21-618-001-A	Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Available)
TASK 12-33-21-618-001-A-01	Pre-conditioning through the HP Ground Connection
TASK 12-33-21-618-001-A-02	Pre-conditioning with the APU
TASK 12-33-21-618-001-A-03	Pre-conditioning through the LP Ground Connection (Aircraft Electrical Power Not Available)
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
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 29-10-00-863-003-A	Pressurize the Blue Hydraulic System with a Hydraulic Ground Power-Cart
TASK 29-10-00-863-003-A-01	Pressurize the Blue Hydraulic System with the Blue Electric Pump
TASK 29-10-00-864-003-A	Depressurize the Blue Hydraulic System
TASK 52-30-00-860-001-A	Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A	Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
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 27-21-00-820-002-A	Adjustment of the Rudder Control-Cables Length (for corrective action)
Component Location - Tension Regulator
Tension-Regulator Adjustment Graph

3. Job Set-up
Subtask 27-21-00-010-057-A

A. Get Access
(1) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position at access door 312AR.
(2) Open access door 312AR.
(3) Put the ACCESS PLATFORM 2M (6 FT) in position at forward avionics-compartment door 811.
(4) Open forward avionics-compartment door 811 (Ref. AMM TASK 52-41-00-010-002).
(5) Put the ACCESS PLATFORM 2M (6 FT) in position at lateral left avionics-compartment-door 812.
(6) Open lateral left avionics-compartment-door 812 (Ref. AMM TASK 52-41-00-010-002).
(7) Put the ACCESS PLATFORM 2M (6 FT) in position at rear avionics-compartment door 824.
(8) Open rear avionics-compartment door 824 (Ref. AMM TASK 52-41-00-010-002).
(9) Put the ACCESS PLATFORM 2M (6 FT) in position at forward cargo-compartment door 825.
(10) Open forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-001).
(11) Put the ACCESS PLATFORM 2M (6 FT) in position at aft cargo-compartment door 826.
(12) Open aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-001).

Subtask 27-21-00-862-057-A

B. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).
(2) Make sure that the air conditionning is de-energized (Ref. AMM TASK 12-33-21-618-001).
(3) The cable routing area must not be lighten by neon located close the cable itself.
(4) Let the temperature in the aircraft become stable for a period of three hours before you start the adjustment.

NOTE: You can do other maintenance actions during the three hour period if they do not change the ambient temperature (No source of heat or cold, aircraft not energized, no air conditioning, no neon light sources in the cable routing area).

(5) The ambiant temperature must be within the range of 0 deg.C (32.00 deg.F), 40 deg.C (104.00 deg.F).

4. Procedure
Subtask 27-21-00-220-051-A

A. Functional Check of the Tension Regulator (Pointer in the Limits)
(1) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(2) Pressurize the Blue hydraulic system
with the electric pump (Ref. AMM TASK 29-10-00-863-003).
(3) On the center pedestal, on RUD TRIM/PARKING BRK panel 110VU, make sure that the RUD TRIM indicator shows "0".
(4) Operate the pedals for more than ten times, one after the other.
(5) Put the WARNING NOTICE(S) in position on the CAPT and F/O rudder pedals to tell persons not to operate them.
(6) Install the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (4) on the input lever of the tension regulator (1).
(7) Install the 98D27207547000 PIN-RIGGING or the 98D27207516000 PIN-RIGGING,SET (3) on the cable quadrant (2).
(8) Depressurize the Blue hydraulic system
(Ref. AMM TASK 29-10-00-864-003).
(9) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
(10) Bend the two cables by the same value and release them quickly. When you release the cables, make sure that the two quadrants of the tension regulator (1) move easily (no blockage).
(11) Measure the ambient temperature with the THERMOMETER.
(12)

Tension-Regulator Adjustment Graph

(13) Install the 98D27203500000 BRACKET RUD CTL REG (5) on the mark of the flange of the cable tension regulator (1), through access door 811.
(14) Use the MIRROR - INSPECTION, FLEXIBLE to make sure that the value that you found on the tension-regulator adjustment graph agrees with the position of the index, with a tolerance of + or - 1/2 graduation.
(15) If the result of the check is not correct, adjust the cable length (Ref. AMM TASK 27-21-00-820-002).

5. Close-up
Subtask 27-21-00-860-060-A

A. Put the aircraft back to its initial configuration.

Component Location - Tension Regulator

Tension-Regulator Adjustment Graph

(1) Remove the 98D27203500000 BRACKET RUD CTL REG (5) from the flange of the cable tension regulator (1).
(2) Remove the 98D27207547000 PIN-RIGGING or the 98D27207516000 PIN-RIGGING,SET (3) from the cable quadrant (2).
(3) Remove the 98A27901002000 PIN-RIGGING,RUDDER CONTROL (4) from the input lever of the tension regulator (1).
(4) Make sure that the work area is clean and clear of tools and other items.
(5) Remove the WARNING NOTICE(S).

Subtask 27-21-00-410-057-A

B. Close Access
(1) Close aft cargo-compartment door 826 (Ref. AMM TASK 52-30-00-860-002).
(2) Close forward cargo-compartment door 825 (Ref. AMM TASK 52-30-00-860-002).
(3) Close rear avionics-compartment door 824 (Ref. AMM TASK 52-41-00-410-002).
(4) Close lateral left avionics-compartment-door 812 (Ref. AMM TASK 52-41-00-410-002).
(5) Close forward avionics-compartment door 811 (Ref. AMM TASK 52-41-00-410-002).
(6) Close access door 312AR.
(7) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:48:03 UTC