(2) Examine the RAT pump/gearbox splitline and the drain plug of the RAT gearbox for external leakage. Make sure that the external leakage is not more than: 60 drops an hour when the RAT is in operation, 2 drops an hour when the RAT is not in operation.
NOTE : The given values are only for the RAT pump/gearbox splitline
____ and the drain plug and not for the hydraulic connections. If you are not sure of the source of the leaks you must pressurize the Blue hydraulic system with 3000 psi and examine the hydraulic connections and its related components.
Subtask 29-22-00-680-053
R. Do the draining of the RAT oil drain tank (Ref. TASK 29-22-51-680-003).
5. Close-up
________ Subtask 29-22-00-860-122
A. Put the aircraft back to its initial configuration.
(1)
On the overhead panel 50VU, push the LEAK MEASUREMENT VALVES/B (the OFF legend of the this pushbutton switch is off).
(2)
Retract the RAT (Ref. TASK 29-22-00-869-006).
(3)
Do the EIS stop procedure
(Ref. TASK 31-60-00-860-002)
(4)
De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
Subtask 29-22-00-865-122
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 7XE, 2803GE.
Subtask 29-22-00-410-079
C. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access doors 197EB and 195BB.
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D. Removal of the Ground Support Equipmemt
(1)
Remove the warning notice(s).
(2)
Remove the safety barriers.
(3)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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Functional Check of Anti-icing Device Magnets
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 : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______ CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______ GEAR.
1. Reason for the Job
__________________
Refer to the MPD TASK: 292000-07
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s)
No specific hexagonal recess type wrench, size 0.250 in.
No specific safety barriers
No specific warning notice(s)
No specific Torque Wrench : range 36.00 to 220.00 lbf.in
(0.40 to 2.60 m.daN) 99D29207556000 1 TESTER - DE-ICING, RAT
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B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
Configuration before Maintenance Action 29-00-00-910-002 Safety Procedures of the 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 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 29-22-00-869-005 Extension of the Ram Air Turbine (RAT) on the Ground 29-22-00-869-006 Retraction of the Ram Air Turbine (RAT) on the Ground 29-22-51-000-010 Removal of the Ram Air Turbine (2GE) 29-22-51-400-010 Installation of the Ram Air Turbine (2GE) 29-22-00-991-026 Fig. 512
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