TASK 12-36-29-600-009
Replacement of the Hydraulic Fluid of the Blue Hydraulic System with the Tool -Hydraulic Fluid Change (DH0501)
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
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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.
_______
R WARNING : DO NOT GET THE FLUID ON YOUR SKIN OR IN YOUR EYES. IF YOU DO:
_______ R - FLUSH IT AWAY WITH CLEAN WATER R - GET MEDICAL AID.
1. Reason for the Job
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To change the type of hydraulic fluid or to change the hydraulic fluid if the contamination is out of tolerance.
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plug No specific circuit breaker(s) safety clip(s) No specific hydraulic ground power supply (reservoir capacity
min. 150 l.)
No specific plug type E0052R8B3APNE
No specific access platform 1.8 m (5 ft. 11 in.)
DH0501 1 TOOL - HYDRAULIC FLUID CHANGE
98D12308351000 1 LP - HOSES FOR FLUID CHANGE
B. Consumable Materials
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REFERENCE DESIGNATION
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R Material No. 02-003 F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
C. Referenced Information
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REFERENCE DESIGNATION
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12-12-29-611-002 Fill the Hydraulic Fluid Reservoir with a Hydraulic Service Cart 12-32-29-281-001 Hydraulic Fluid Sample of Green,Blue and Yellow Systems for Analysis 24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power 29-10-00-680-003 Drainage of the Reservoir of the Blue Hydraulic System 29-10-00-863-003 Pressurize the Blue Hydraulic System with a Ground
Power Supply 29-10-00-864-003 Depressurize the Blue Hydraulic System 29-12-43-610-001 Servicing of the Electric-Pump Case-Drain Filter
(2084GM) 29-12-44-610-001 Servicing of the LP-Filter (2002GM) 29-12-45-610-001 Servicing of the HP-Filter 2048GM 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector
32-12-00-010-001 Open the Main Gear Doors for Access
32-12-00-410-001 Close the Main Gear Doors after Access
12-36-29-991-022 Fig. 323
12-36-29-991-023 Fig. 324
3. Job Set-up
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Subtask 12-36-29-860-127
A. Aircraft Maintenance Configuration
(1)
On the Blue HP manifold (2011GM), disconnect the pressure switch (2151GN) and (10CE1), and on the free end make a short circuit between the pins A and B with a plug type E0052R8B3APNE.
(2)
Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
(3)
On the overhead maintenance panel 50VU, make sure that the LEAK MEASUREMENT VALVES/B pushbutton switch is released (the OFF legend is on).
Subtask 12-36-29-865-060
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------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 121VU HYDRAULIC/G HYD/PUMP ENG1/CTL 1701GK R35 121VU HYDRAULIC/G HYD/PUMP ENG1/MONG 1702GK R34 123VU Y HYD/ELEC/PUMP 3802GX AB06 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
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