4. Procedure
_________
(Ref. Fig. 401/TASK 29-34-11-991-001) Subtask 29-34-11-020-050
A. Removal of the Reservoir Pressure Switch
(1)
Disconnect the electrical connector (1) from the pressure switch (2).
(2)
Put blanking caps on the disconnected electrical connectors.
(3)
Remove the nut (4), the washer (6) and the bolt (7) and remove the bonding jumper (5).
(4)
Cut and remove the lockwire from the pressure switch (2).
(5)
Remove the pressure switch (2) from the reservoir and discard the O-ring (3).
(6)
Put blanking plugs in the open end of the pressure switch (2) and in the port on the top of the reservoir.
Air Pressure Switch
Figure 401/TASK 29-34-11-991-001
1EFF : ALL 1 29-34-11 Page 404
1 1 Feb 01/98
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1CES 1
TASK 29-34-11-400-001
Installation of the Reservoir Pressure Switch of the Green 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 caps
No specific blanking plugs
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 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)
Material No. 04-012 USA VV-P-236 PURE MINERALVASELINE OR PETRO- LATUM (Ref. 20-31-00) Material No. 05-004 USA MIL-L-25567 TYPE I OXYGEN LEAK DETECTOR (Ref. 20-31-00) Material No. 16-003 F ASNB70720 COATING (OBSOLETE USE 16-021) (Ref. 20-31-00)
C. Expendable Parts -------------------------------------------------------------------------------
FIG.ITEM --------- |DESIGNATION ---------------------------------------- |IPC-CSN------------------------------
3 O-ring 29-34-03 01 -020
D. 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 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power Transfer Unit (PTU) 29-23-00-860-002 Connection of the Isolation Coupling of the Power Transfer Unit (PTU) 29-34-00-710-001 Operational Test of Reservoir Low Air Pressure
Warning 32-12-00-010-001 Open the Main Gear Doors for Access 32-12-00-410-001 Close the Main Gear Doors after Access 29-34-11-991-001 Fig. 401
3. Job Set-up
__________
Subtask 29-34-11-860-055
A. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(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)
Make sure that the reservoir of the Green hydraulic system is depressurized. (Ref. TASK 29-14-00-614-001).
(4)
Make sure that the warning notices are 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)
Make sure that the main doors of the main gear are open (Ref. TASK 32-12-00-010-001).
(6)
Make sure that the access platform is in position.
