B. Consumable Materials
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REFERENCE DESIGNATION
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R Material No. 02-003 F NSA 307110 TYPE 4 HYDRAULIC FLUID (PHOSPHATE ESTER BASE) (Ref. 20-31-00)
C. Referenced Information
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REFERENCE DESIGNATION
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R 12-12-32-991-004 Fig. 304
3. Job Set-up
__________ R (Ref. Fig. 304/TASK 12-12-32-991-004) Subtask 12-12-32-941-052
A. Safety Precautions
(1)
Put the safety barriers in position.
(2)
On panel 400VU, make sure the landing-gear control-lever (6GA) is in the DOWN position.
(3)
On panel 110VU, make sure the parking-brake switch is in the OFF position.
(4)
Put a warning notice in the cockpit to tell persons not to operate the brake controls.
(5) Put the access platform at the access door 811.
Subtask 12-12-32-010-051
B. Get Access
(1) Open the access door 811.
Alternate-Brake Reservoir Replenishment - Detail and Location R Figure 304/TASK 12-12-32-991-004
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4. Procedure
_________ R (Ref. Fig. 304/TASK 12-12-32-991-004) Subtask 12-12-32-614-075
A. Preparation for Replenishment
(1)
Remove the blanking cap (4) from the filling valve (3) and disconnect the drain line (5) from the bleed valve (1).
(2)
Install a vinyl tube on to the bleed valve (1).
(3)
Put the vinyl tube into a container full of HYDRAULIC FLUIDS (Material No. 02-003) that does not have gas in it.
(4)
Make sure that the pipes on the standard filling equipment are filled with HYDRAULIC FLUIDS (Material No. 02-003) which does not have gas in it. Connect the pipe of the filling equipment to the charging valve (3).
Subtask 12-12-32-611-050
B. Replenishment of the Alternate Brake Reservoir NOTE : This procedure will let you replenish the alternate brake
____ reservoir. But, if the reservoir is empty, you should do a bleed procedure of the complete system (Ref. TASK 32-43-00-612-001, Filling and Bleeding of the Low Pressure Control of the Alternate Braking).
(1)
Open the bleed valve (1).
(2)
Use the handpump to fill the brake reservoir (2) with HYDRAULIC FLUIDS (Material No. 02-003). Keep the hydraulic fluid flow rate constant and at a pressure of less than 4 bar (58 psi) as shown on the pressure gage.
(3)
When the hydraulic fluid that comes from the bleed valve (1) does not have gas in it, close the bleed valve (1).
(4)
Open the bleed valve (1) and put the brake reservoir (2) to its correct level (on the green ring). Close the bleed valve (1).
(5)
Remove the vinyl tube from the bleed valve (1) and disconnect the pipe from the filling valve (3).
(6)
Make sure that there is no leakage of fluid from the bleed valve (1).
(7)
Install the blanking cap (4) on the filling valve (3).
(8)
TORQUE the blanking cap (4) to between 1.1 and 1.25 m.daN (97.34 and
110.61 lbf.in).
(9)
Install the drain line (5) on the bleed valve (1).
(10) TORQUE the drain line (5) to 1.5 m.daN (11.06 lbf.ft).
5. Close-up
________ Subtask 12-12-32-410-051
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 811. Subtask 12-12-32-942-053
B. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the access platform(s).
(4)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
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