3. Job Set-up
__________ Subtask 29-12-22-865-050
A. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------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
Subtask 29-12-22-860-050
B. Aircraft Maintenance Configuration
(1)
Put the WARNING NOTICE 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)
Depressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-001).
Subtask 29-12-22-010-050
C. Open the access door 195BB.
4. Procedure
_________ (Ref. Fig. 401/TASK 29-12-22-991-001) Subtask 29-12-22-614-050
A. Depressurize the Power Accumulator (2072GM)
(1)
Remove the endcap (6) from the charging-valve (4).
(2)
Turn the nut (5) carefully to the OPEN position and release the nitrogen pressure.
Gas Charging Valve
Figure 401/TASK 29-12-22-991-001
1EFF : ALL 1 29-12-22 Page 403
1 1 May 01/05
1 1
1CES 1
Subtask 29-12-22-020-050
B. Removal of the Gas Charging-valve (2071GM)
(1)
Cut, remove and discard the lockwire from the gas charging-valve (4).
(2)
Remove the gas charging valve (4)
(3)
Install the PLUG - BLANKING in the adapter (2).
(4)
Install the CAP - BLANKING on the gas charging-valve (4).
TASK 29-12-22-400-001
Installation 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 -------------------------------------------------------------------------------
No specific 1 CAP - BLANKING No specific 2 PLUG - BLANKING No specific 2 WARNING NOTICE No specific Torque Wrench : range 0.00 to 1.20 m.daN
(0.00
to 9.00 lbf.ft) No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B.
Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 02-003 F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
Material No. 05-004 USA MIL-L-25567 TYPE I OXYGEN LEAK DETECTOR (Ref. 20-31-00)
Material No. 19-010 USA AMS 5687 LOCKWIRE STAINLESS STEEL ANNEALED 0.8MM DIA (Ref. 20-31-00)
C. Expendable Parts -------------------------------------------------------------------------------
FIG.ITEM --------- |DESIGNATION ---------------------------------------- |IPC-CSN------------------------------
3 o-ring 29-14-14 01 -010
D. Referenced Information
------------------REFERENCE -------------------------------DESIGNATION ------------------------------
-------------------------------------------------------------------------------
12-12-29-611-001 Fill the Hydraulic Fluid Reservoir with a Hand Pump 12-14-29-614-001 Fill the Hydraulic Power Accumulators 1070GM/2070GM/3070GM with Nitrogen 29-00-00-864-001 Put the Related Hydraulic System in the Depressurized
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