C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
20-21-11-911-001 Tightening Torques for Standard Threaded Fasteners 20-23-11-917-001 Tightening practices for Hydraulic Connections 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) 29-23-00-860-002 Connection of the Isolation Coupling of the Power Transfer Unit (PTU) 32-00-00-481-001 Installation of the Safety Devices on the Landing
Gears 32-43-00-710-001 Operational Check of Alternate Braking System 32-43-00-870-002 Bleeding of the High Pressure Alternate Braking
System 32-43-32-991-001 Fig. 401
3. Job Set-up
__________
(Ref. Fig. 401/TASK 32-43-32-991-001)
Subtask 32-43-32-941-051
A. Safety Precautions
(1)
Make sure that the safety barriers are in position.
(2)
Make sure that the ground safety locks are installed on the landing gear (Ref. TASK 32-00-00-481-001).
(3)
On the panel 400VU:
-
make sure that the landing-gear control-lever 6GA is in the DOWN position
-
make sure that the warning notice is in position to tell persons not to operate the landing gear.
(4)
Make sure that the warning notice is in position to tell persons not to pressurize the Yellow hydraulic system.
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B. Aircraft Maintenance Configuration
(1)
Make sure that the access platform is below the applicable false rear spar, at zone 571(671).
(2)
Make sure that the Yellow hydraulic system has been depressurized (Ref. TASK 29-00-00-864-001).
(3)
Make sure that the pressure in the brake accumulator of the Yellow hydraulic system is at zero.
(4)
Make sure that the isolation coupling of the PTU is disconnected (Ref. TASK 29-23-00-860-001).
Subtask 32-43-32-865-051
C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU ABCU &/Y BRK/PRESS IND 61GG C10 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/SPLY 4GG M36 121VU HYDRAULIC/BRAKING AND STEERING/SYS2/CTL 3GG M35 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/CTL 1GG M34 121VU HYDRAULIC/BRAKING AND STEERING/SYS1/IND AND/SPLY 2GG M33 121VU HYDRAULIC/PARK BRK/CTL/STBY 71GG N37 121VU HYDRAULIC/PARK BRK/CTL/NORM 70GG N36 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 121VU ABCU/HOT BUS/SPLY 110GG P30 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
4. Procedure_________
Subtask 32-43-32-420-050
A. Preparation for Installation
(1)
Clean the component interface and/or the adjacent area with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).
(2)
Do an inspection of the component interface and/or the adjacent area.
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(3)
Make sure that the parts retained from the removed component are clean and in the correct condition.
(4)
Remove the blanking plugs from the hydraulic lines.
(5)
Make sure that the hydraulic line end-fittings are serviceable.
(6) Remove the blanking caps from the electrical connectors (1) and (2). Subtask 32-43-32-420-051
B. Installation of the Alternate-Brake Manifold
(1)
Install the manifold (6) with the four bolts (4) and the eight washers (5).
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