32-12-00-410-001 Close the Main Gear Doors after Access 32-43-00-870-002 Bleeding of the High Pressure Alternate Braking System 32-45-00-710-001 Operational Check of the Parking Brake System Using Individual Motors in Turn 32-45-53-991-001 Fig. 401
3. Job Set-up
__________
Subtask 32-45-53-860-051
A. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Make sure that the right MLG door is open (Ref. TASK 32-12-00-010-001).
(3)
Make sure that the ACCESS PLATFORM 2M (6 FT) is in position.
(4)
Make sure that the Yellow hydraulic system is depressurized (Ref. TASK 29-10-00-864-002).
(5)
Make sure that the alternate brake system is depressurized.
(6)
Make sure that the PTU isolation coupling is disconnected (Ref. TASK 29-23-00-860-001).
(7)
Make sure a WARNING NOTICE is in position to tell persons not to pressurize the Yellow hydraulic system: - on the panel 40VU in the cockpit, - on the ground service panel of the Yellow hydraulic system.
(8)
Make sure that the reservoir of the Yellow hydraulic system is depressurized (Ref. TASK 29-14-00-614-001).
(9)
Make sure that the CONTAINER 5 L(1 1/2 USGAL) is in position below the parking-brake electrical control-valve (7).
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B. 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 HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37 121VU HYDRAULIC/Y HYD/PUMP ENG2/CTL 3701GD Q36 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
4. Procedure_________
(Ref. Fig. 401/TASK 32-45-53-991-001)
Subtask 32-45-53-560-050
A. Preparation of the Replacement Component
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(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 disconnected line ends.
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(5) Lubricate the threads of the hydraulic pipe connectors of the parking-brake electrical control-valve (7).
WARNING : MAKE SURE THAT THERE IS A GOOD FLOW OF AIR THROUGH THE WORK
_______ AREA WHEN YOU USE SPECIAL MATERIALS. IF YOU GET ONE OF THESE MATERIALS ON YOUR SKIN, IN YOUR MOUTH OR IN YOUR EYES : -FLUSH IT AWAY WITH A FLOW OF CLEAN WATER FOR BETWEEN 10 AND 15 MINUTES. -GET IMMEDIATE MEDICAL AID IF IRRITATION OCCURS. DO NOT BREATHE THE FUMES FROM THE MATERIAL. DO NOT SMOKE WHEN YOU USE THE MATERIAL. DO NOT USE THE MATERIAL NEAR A FLAME, SPARKS OR SOURCES OF HEAT. THESE MATERIALS ARE DANGEROUS : THEY ARE POISONOUS, FLAMMABLE AND SKIN IRRITANTS.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(a) Apply the HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the hydraulic pipe connectors (2), (3) and (4).
(6)
Apply the zinc chromate putty, SPECIAL MATERIALS (Material No. 05-002) to the threads of the bolts (9).
(7)
Apply sealant to the interface area of the parking-brake electrical control-valve (7) and the support assembly (5).
WARNING : OBEY THE MANUFACTURER'S INSTRUCTIONS WHEN YOU USE
_______ THIS/THESE MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES AND A MASK.
(a) Apply SEALANTS (Material No. 09-013) to the component interface.
Subtask 32-45-53-420-050
B. Installation of the Parking-Brake Electrical Control-Valve
(1)
Put the parking-brake electrical control-valve (7) in its installation position.
(2)
Install the bonding lead (1), the washer (8) and the bolt (9) (Ref. TASK 20-28-00-912-004).
(3)
Install the remaining washers (8) and bolts (9).
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