(2)
Make sure that the Green hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(3)
Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).
(4)
Put the warning notices in position to tell persons not to pressurize the Green hydraulic system:
-in the cockpit on the hydraulic section 40VU of the overhead panel, - on the ground service panel of the Green hydraulic system.
(5)
Put the access platform in position at the main door of the main gear.
(6)
Disconnect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-001).
(7)
Put the container in position below the system pressure switch to collect any hydraulic fluid.
4. Procedure
_________
(Ref. Fig. 401/TASK 29-32-12-991-001) Subtask 29-32-12-020-050
A. Removal of the System Pressure Switch
(1)
Disconnect the electrical connector (1).
(2)
Put the blanking cap on the disconnected electrical connector (1).
(3)
Remove the nut (5), the washer (6), the screw (8), the bonding jumper
(7) and the clamp (9) from the system pressure switch (2).
(4)
Cut and remove the lockwire.
(5)
Loosen the system pressure switch (2) and remove it together with the O-ring (3) from the manifold (4).
(6)
Discard the O-ring.
(7)
Install the blanking plugs in the open ports.
System Pressure Switch of the Green and Yellow Hydraulic Systems
Figure 401/TASK 29-32-12-991-001
TASK 29-32-12-400-001
Installation of the System Pressure Switch (1151GN)
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
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking plugs
No specific container
No specific warning notices
No specific access platform 2.8 m (9 ft. 2 in.)
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
No specific lockwire, corrosion-resistant steel 0.8 mm (0.032 in.)
R Material No. 02-003 F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
C. Expendable Parts
-------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
-------------------------------------------------------------------------------
3 O-ring 29-32-03 01A-070
3 O-ring 29-32-03 01B-070
D. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
20-28-00-912-004 Electrical Bonding of Components With Conductive Bolts and Screws and Bonding Straps in the Fuselage R and in the Wings (this does not include the tanks)-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 29-10-00-863-001 Pressurize the Green Hydraulic System 29-10-00-864-001 Depressurize the Green Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
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