Subtask 29-34-11-865-057
B. Make sure that this(these) circuit breaker(s) is(are) closed:
1831GQ, 1832GQ, 2701GJ, 2702GJ
TASK 29-34-11-000-003
Removal of the Reservoir Pressure Switch of the Yellow 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 circuit breaker(s) safety clip(s) No specific warning notices
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 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power
Transfer Unit (PTU) 29-34-11-991-001 Fig. 401
3. Job Set-up
__________
Subtask 29-34-11-865-058
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/LOW/LVL/IND 1832GQ N32 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 121VU HYDRAULIC/HYD/QTY/IND 1831GQ P35 121VU HYDRAULIC/Y HYD/PUMP ENG2/MONG 3700GD Q37 123VU Y HYD/ELEC/PUMP 3802GX AB06
R 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
Subtask 29-34-11-860-052
B. Aircraft Maintenance Configuration
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
(1)
Obey the hydraulic safety procedures (Ref. TASK 29-00-00-910-002).
(2)
Put the warning notices in position to tell persons not to pressurize the Yellow hydraulic system:
-In the cockpit on the hydraulic section of the overhead panel,
-On the ground service panel of the Yellow hydraulic system.
(3)
Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(4)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(5)
Open the access door 196BB.
(6)
Disconnect the isolation coupling of the power transfer unit (PTU) (Ref. TASK 29-23-00-860-001).
4. Procedure
_________
(Ref. Fig. 401/TASK 29-34-11-991-001) Subtask 29-34-11-020-052
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.
TASK 29-34-11-400-003
Installation of the Reservoir Pressure Switch of the Yellow 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 Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
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