29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through the Ground Connector 29-12-21-991-001 Fig. 401
3. Job Set-up
__________
Subtask 29-12-21-860-052
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 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.
(3)
Make sure that the Blue hydraulic system is depressurized and put it in the maintenance configuration. (Ref. TASK 29-00-00-864-001).
(4)
Make sure that the reservoir of the Blue hydraulic system is depressurized (Ref. TASK 29-14-00-614-001).
(5)
Make sure that the access door 195BB is open .
Subtask 29-12-21-865-051
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/SOL VALVES/G/Y/B/LEAK/TST 1881GP N35 123VU B HYD/ELEC PUMP 2701GJ AB09
4. Procedure
_________
(Ref. Fig. 401/TASK 29-12-21-991-001) Subtask 29-12-21-420-050
A. Installation of the 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 the adapter (3).
(4)
Apply HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the pressure gage connection.
(5)
Install the pressure gage (1) on the adapter (3). NOTE : Make sure that you can clearly read the pressure gage when it
____
is installed.
(6)
TORQUE the nut (2) to between 1.54 and 1.65 m.daN (11.35 and 12.16 lbf.ft).
(7)
Safety the nut (2) with lockwire 0.8 mm (0.032 in.). Subtask 29-12-21-860-053
B.
Preparation for Test
(1)
Fill the accumulator with nitrogen (Ref. TASK 12-14-29-614-001).
(2)
Remove the warning notices from the cockpit and the ground service panel.
(3)
Pressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-002).
(4)
Make sure that the fluid level in the reservoir of the Blue hydraulic system is correct. Add fluid as necessary (Ref. TASK 12-12-29-611-001).
(5)
Pressurize the Blue hydraulic system (Ref. TASK 29-10-00-863-003).
Subtask 29-12-21-790-050
C. Test
(1)
Apply SPECIAL MATERIALS (Material No. 05-004) to the connection of the pressure gage (1) and the adapter (3) and make sure that there are no leaks.
(2)
Make sure that the pressure gage (1) shows 3000 +100 -100 psi.
5. Close-up
________ Subtask 29-12-21-410-050
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access door 195BB. Subtask 29-12-21-865-052
B.
Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1881GP, 2701GJ, 2702GJ.
VALVE - CHARGING, BLUE POWER ACCUMULATOR (2071GM) - REMOVAL/INSTALLATION
________________________________________________________________________ TASK 29-12-22-000-001 Removal of the Accumulator-Gas Charging Valve (2071GM) 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 -------------------------------------------------------------------------------
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