(2)
Depressurize the Yellow hydraulic system (Ref. TASK 29-10-00-864-002):
-
do not connect the PTU isolation coupling
-
do not close the right MLG door.
(3)
Put a WARNING NOTICE 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.
(4)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
1EFF : 401-499, 1 32-51-21Page 402 1 1 Aug 01/05 1 1 1CES 1
(5) Put the CONTAINER 5 L(1 1/2 USGAL) below the safety valve to collect
the hydraulic fluid leakage. Subtask 32-51-21-865-050
C. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------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 32-51-21-991-001)
Subtask 32-51-21-020-050
A. Removal of the Safety Valve
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES._______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Hold the safety valve (6) with your hand.
(3)
Remove the bolts (4) and (5) and the washers (3).
(4)
Remove the safety valve (6) from the manifold (1).
(5)
Remove and discard the drum-equipped assemblies (2) from the safety valve (6) (Ref. TASK 20-23-21-911-001).
(6)
Put blanking plugs on the disconnected line ends.
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Safety Valve
Figure 401/TASK 32-51-21-991-001
1EFF : 401-499, 1 32-51-21 Page 404
1 1 Aug 01/05
1 1
1CES 1
TASK 32-51-21-400-001
Installation of the Safety Valve (2900GM)
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 MANUFACTURER'S INSTRUCTIONS WHEN YOU USE THIS/THESE
_______ MATERIAL/S. USE PROTECTIVE CLOTHING, RUBBER GLOVES AND A MASK.
WARNING : MAKE SURE THAT ALL THE CIRCUITS IN MAINTENANCE ARE ISOLATED BEFORE
_______ YOU SUPPLY ELECTRICAL POWER TO THE AIRCRAFT.
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.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
1. Reason for the Job
__________________
Self Explanatory
1EFF : 401-499, 1 32-51-21Page 405 1 1 Aug 01/05 1 1 1CES 1
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific 1 ACCESS PLATFORM 2M (6 FT)
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