4. Procedure
_________
(Ref. Fig. 401/TASK 29-14-15-991-001) Subtask 29-14-15-020-051
A. Removal of the Air Pressure Gage
(1)
Cut and remove the lockwire from the pressure gage (1) and the adapter (2).
(2)
Hold the adapter (2) and remove the pressure gage (1).
(3)
Install blanking plugs in the open ends of the pressure gage (1) and the adapter (2).
TASK 29-14-15-400-002
Installation of the Air Pressure Gage of the Blue 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 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 -------------------------------------------------------------------------------
No specific lockwire, corrosion resistant steel, 0.8mm (0.032 in.) Material No. 05-004 USA MIL-L-25567 TYPE I OXYGEN LEAK DETECTOR (Ref. 20-31-00)
C. 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 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector 29-14-15-991-001 Fig. 401
3. Job Set-up
__________ Subtask 29-14-15-860-056
A. Aircraft Maintenance Configuration
(1)
Make sure that the warning notices are in position to tell persons not to pressurize the Blue hydraulic system:
-in the cockpit on the hydraulic section 40VU of the overhead panel, - on the ground service panel of the Blue hydraulic system.
(2)
Make sure that the Blue 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 Blue hydraulic system is depressurized (Ref. TASK 29-14-00-614-001).
(4)
Make sure that the access door 197FB is open. Subtask 29-14-15-865-054
B.
Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 121VU HYDRAULIC/LOW/LVL/IND 1832GQ N32 121VU HYDRAULIC/HYD/QTY/IND 1831GQ P35 123VU B HYD/ELEC PUMP 2701GJ AB09
4. Procedure
_________
(Ref. Fig. 401/TASK 29-14-15-991-001) Subtask 29-14-15-420-051
A. Installation of the Air Pressure Gage
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Remove the blanking plugs from the pressure gage (1) and from the ports on the top of the reservoir.
(4)
Install the pressure gage (1) on the adapter (2).
(5)
Hold the adapter (2) and TORQUE the connector of the pressure gage
(1) to between 1.52 and 1.71 m.daN (11.20 and 12.61 lbf.ft).
(6)
Safety the pressure gage (1) and the adapter (2) to the reservoir with lockwire, corrosion resistant steel, 0.8mm (0.032 in.).
Subtask 29-14-15-790-051
B. Test
(1)
Pressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-002).
(2)
Apply leak detector SPECIAL MATERIALS (Material No. 05-004) to the connection of the pressure gage (1) and the adapter (2) and make sure that there are no leaks.
5. Close-up
________ Subtask 29-14-15-865-055
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1831GQ, 1832GQ, 2701GJ, 2702GJ
Subtask 29-14-15-860-057
B. Put the aircraft back to the serviceable condition.
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