C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
29-00-00-864-001 Put the Related Hydraulic System in the Depressurized Configuration before Maintenance Action 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector
32-12-00-010-001 Open the Main Gear Doors for Access
32-12-00-410-001 Close the Main Gear Doors after Access
3. Job Set-up
__________
Subtask 29-10-00-860-063
A. Aircraft Maintenance Configuration
(1)
Depressurize the Green, Yellow and Blue hydraulic systems, but not the reservoirs (Ref. TASK 29-00-00-864-001).
(2)
Put the warning notices in position to tell persons not to pressurize the hydraulic systems:
-in the flight compartment on the hydraulic section 40VU of the overhead panel,
- on the ground service panels of the Green, Yellow and Blue hydraulic systems.
Subtask 29-10-00-865-056
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU HYD/HYD PWR/B WARN/& CTL 2702GJ C12 121VU HYDRAULIC/HYD POWER/Y 3803GX N30 123VU B HYD/ELEC PUMP 2701GJ AB09 123VU Y HYD/ELEC/PUMP 3802GX AB06
R 123VU Y HYD/ELEC/ELEC PUMP/NORM 3801GX AB03
Subtask 29-10-00-010-055
C. Get Access
(1) Open one main door of the main landing gear (Ref. TASK 32-12-00-010-001).
NOTE : You can open any door, but the access is better from the RH
____
side.
(2) Open the access doors 196BB, 197FB.
4. Procedure_________
Subtask 29-10-00-210-052
A. Do a Check of the Air Pressure in the Hydraulic Reservoirs
R R R R R (1) Read the pressure gages (1383GM, 2383GM, 3383GM) on each of the three reservoirs. Make sure that the pressure values are: - not less than 44 psig at 3 hours from the last reservoir pressurization - not less than 29 psig at 12 hours from the last reservoir pressurization.
(2) If the pressure in a reservoir is not in the limits, continue as follows:
(a) Use the SPECIAL MATERIALS (Material No. 05-004) and do a leak check.
(b) Do the applicable corrective procedures for the leaks that you find.
(c) Pressurize the reservoirs (Ref. TASK 29-14-00-614-002).
5. Close-up________
Subtask 29-10-00-410-055
A. Close Access
(1) Make sure that the work area is clean and clear of tool(s) and other items.
(2) Close the main door of the main landing gear (Ref. TASK 32-12-00-410-001).
(3) Close the access doors 196BB, 197FB.
(4) Remove the warning notice(s).
Subtask 29-10-00-865-057
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 2701GJ, 2702GJ, 3801GX, 3802GX, 3803GX
TASK 29-10-00-200-008
Check Nitrogen Charge Pressure on Hydraulic Power Accumulators
1. Reason for the Job__________________
Refer to the MPD TASK: 291000-14
2. Job Set-up Information______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific No specific circuit breaker(s) safety clip(s)warning notice(s)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 05-004 USA MIL-L-25567 TYPE I OXYGEN LEAK DETECTOR (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R R R R R R 12-14-29-614-001 29-00-00-864-001 29-00-00-870-003 29-00-00-870-007 29-00-00-870-009 29-11-21-000-001 29-11-21-400-001 Fill the Hydraulic Power Accumulators 1070GM/2070GM/3070GM with NitrogenPut the Related Hydraulic System in the Depressurized Configuration before Maintenance Action Bleeding Procedure of the Green Hydraulic System Downstream of the Engine Pump Bleeding Procedure of the Yellow Hydraulic System Downstream of the Engine Pump Bleeding Procedure of the Blue Hydraulic System Downstream of the Blue E-PumpRemoval of the Accumulator-Air Pressure Gage (1072GM)Installation of the Accumulator-Air Pressure Gage (1072GM)
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