-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)
Depressurize the reservoir of the Blue hydraulic system (Ref. TASK 29-14-00-614-001).
(5)
Put a container below the accumulator to collect unwanted hydraulic fluid.
Subtask 29-12-42-614-050
D. Release the nitrogen pressure from the accummulator as follows:
(1)
Remove the endcap from the charging valve (2).
(2)
Turn the nut to OPEN position and release the nitrogen pressure.
4. Procedure
_________ (Ref. Fig. 401/TASK 29-12-42-991-001) Subtask 29-12-42-020-050
A. Removal of the Accumulator CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
(1)
Loosen the union nut (12) and disconnect the hydraulic line from the union (10).
(2)
Remove the nut (11) from the union (10).
(3)
Hold the accumulator assembly, loosen the two clamp screws and remove the two clamps (5).
(4)
Remove the accumulator assembly (8) from the mounting.
(5)
Close the open ends of the accumulator assembly and the hydraulic line with blanking caps.
Blue Power Accumulator
Figure 401/TASK 29-12-42-991-001
1EFF : ALL 1 29-12-42 Page 404
1 1 Feb 01/98
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TASK 29-12-42-400-001
Installation of the Blue Power Accumulator
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific container
No specific warning notices
R No specific Torque Wrench : range 0.00 to 1.20 m.daN
R (0.00 to 9.00 lbf.ft) No specific Torque Wrench : range 1.00 to 10.00 m.daN
(8.00 to 75.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
No specific lockwire, corrosion resistant steel 0.8 mm (0.032 in.).
Material No. 02-003 F NSA 307110 TYPE 4
HYDRAULIC FLUID (PHOSPHATE ESTER BASE)
(Ref. 20-31-00)
C. Expendable Parts
-------------------------------------------------------------------------------
FIG.ITEM |DESIGNATION |IPC-CSN
-------------------------------------------------------------------------------
4 O-rings 29-12-03 06A-110 9 O-rings 29-12-03 06A-070 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
Configuration before Maintenance Action R 29-00-00-870-009 Bleeding Procedure of the Blue Hydraulic System R Downstream of the Blue E-Pump
29-00-00-910-002 Safety Procedures of the Hydraulic System 29-10-00-863-003 Pressurize the Blue Hydraulic System with a Ground
Power Supply 29-10-00-864-003 Depressurize the Blue Hydraulic System 29-14-00-614-001 Depressurization of the Hydraulic Reservoirs 29-14-00-614-002 Pressurization of the Hydraulic Reservoirs through
the Ground Connector
3. Job Set-up
__________
Subtask 29-12-42-860-052
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