(3)
Make sure that the work area is clean and clear of tool(s) and other items.
R (4) Close the left fan cowl door 447AL (Ref. TASK 71-13-00-410-040).
(5) Close the door 195BB.
PRESSURE GAGE - ACCUMULATOR AIR, YELLOW POWER (3072GM) - REMOVAL/INSTALLATION
_____________________________________________________________________________ TASK 29-13-21-000-001 Removal of the Accumulator-Air Pressure Gage (3072GM) 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 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 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-23-00-860-001 Disconnection of the Isolation Coupling of the Power
Transfer Unit (PTU) 29-13-21-991-001 Fig. 401
3. Job Set-up
__________
Subtask 29-13-21-865-050
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 123VU Y HYD/ELEC/PUMP 3802GX AB06
R 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
Subtask 29-13-21-010-050
B. Open the access door 196BB.
Subtask 29-13-21-860-052
C. Aircraft Maintenance Configuration
(1)
Put the warning notices in position to tell persons not to pressurize the Yellow hydraulic system:
-in the cockpit on the hydraulic section 40VU of the overhead panel, - on the ground service panel of the Yellow hydraulic system.
(2)
Make sure that the Yellow hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(3)
Depressurize the reservoir of the Yellow hydraulic system (Ref. TASK 29-14-00-614-001).
(4)
Disconnect the isolation coupling of the Power Transfer Unit (PTU) (Ref. TASK 29-23-00-860-001).
Subtask 29-13-21-614-051
D. Depressurization of the Power Accumulator (3070GM)
(1)
Remove the endcap from the charging valve (5).
(2)
Turn the nut to the OPEN position and release the nitrogen pressure.
4. Procedure
_________
(Ref. Fig. 401/TASK 29-13-21-991-001) Subtask 29-13-21-020-050
A. Removal of the Pressure Gage
(1)
Cut, remove and discard the lockwire from the pressure gage (2).
(2)
Hold the pressure gage (2) and loosen the nut (3).
(3)
Remove the pressure gage (2).
(4)
Install blanking plugs on the pressure gage (2) and the adapter (4).
Pressure Gage
Figure 401/TASK 29-13-21-991-001
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TASK 29-13-21-400-001
Installation of the Accumulator-Air Pressure Gage (3072GM)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
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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