-
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
__________________
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
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
R Material No. 02-003 F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
07-11-00-581-001 Lifting for Aircraft Maintenance Operations 07-11-00-586-002 Lowering of the Aircraft for Maintenance Operations 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 29-10-00-680-001 Drainage of the Reservoir of the Green Hydraulic
System 29-10-00-863-001 Pressurize the Green Hydraulic System 29-10-00-864-001 Depressurize the Green Hydraulic System 29-11-44-610-001 Servicing of the LP-Filter (1002GM) 29-11-45-610-001 Servicing of the HP-Filter 1048GM 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 32-00-00-481-002 Installation of the Safety Devices on the Landing
Gear Doors
32-12-00-010-001 Open the Main Gear Doors for Access
32-12-00-410-001 Close the Main Gear Doors after Access
32-30-00-867-001 Retraction of the Landing Gear for Maintenance
32-30-00-867-002 Extension of the Landing Gear after Maintenance
71-00-00-710-001 Dry Motoring Check
12-36-29-991-020 Fig. 321
12-36-29-991-021 Fig. 322
3. Job Set-up
__________ Subtask 12-36-29-860-124
A. Aircraft Maintenance Configuration
(1)
On the Green HP manifold (1011GM), disconnect the pressure switch (1151GN) and (10CE2), 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/G pushbutton switch is released (the OFF legend is on).
Subtask 12-36-29-865-058
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 123VU B HYD/ELEC PUMP 2701GJ AB09
Subtask 12-36-29-010-101
C. Get Access
(1)
Open the left main landing gear door (Ref. TASK 32-12-00-010-001).
(2)
Open the access door 197CB.
(3) Put an access platform below the MLG bay. Subtask 12-36-29-680-054
D. Drain the reservoir of the Green hydraulic system (Ref. TASK 29-10-00-680-001).
1EFF : ALL 1 12-36-29Page A374 1 1 Aug 01/00R 1 1 1CES 1
Subtask 12-36-29-860-125
E. Aircraft Maintenance Configuration
(1) Set the hydraulic ground power supply (reservoir capacity min. 150 l.) to the correct configuration:
(a) Make sure that the hydraulic ground power supply reservoir is filled with new HYDRAULIC FLUIDS (Material No. 02-003).
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