S 434-068
(4)
Install the hydraulic fittings in the selector valve (1) (Fig. 401):
(a)
Lubricate the adapter fittings (5 and 9), new O-rings (2,4,6 and 8) and backup rings (3 and 7) with Skydrol Assembly Lube.
(b)
Install the adapter fittings (5 and 9), new O-rings (2,4,6 and 8) and backup rings (3 and 7) in the selector valve (1).
S 614-069
(5)
Fill the valve (1) with fire-resistant hydraulic fluid.
S 034-070
(6)
Install a cap on the valve ports.
S 424-071
(7)
Install the selector valve (1):
(a)
Apply the wet primer to all areas of the bolt holes.
(b)
Install the selector valve (1) in its position.
(c)
Install the mounting bolts (10) and washers (11).
(d)
Attach the selector valve crank (12) to the valve shaft.
NOTE: The joint with splines has index marks on it to make
____ sure you put the shaft in the correct position.
(e)
Apply the corrosion preventive compound around all areas of the joint.
(f)
Remove the caps and plugs from the hydraulic hoses.
(g)
Connect the hydraulic hoses to the valve (1).
(8)
Remove the rigging pin from the selector valve quadrant.
S 094-013
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32-31-03
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 494-060
WARNING:_______ YOU MUST CAREFULLY DO THE STEPS IN THE TASKS BELOW TO REMOVE
THE DOOR LOCKS FROM THE LANDING GEAR DOORS. THE DOORS CAN
CLOSE QUICKLY IF YOU DO NOT REMOVE THE DOOR LOCKS CORRECTLY.
THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(9)
Do this task: "Removal of the Door Locks from the Doors for the Wing Landing Gear" (Ref 32-00-30/201).
S 494-059
(10)
Do this task: "Removal of the Door Locks from the Doors for the Body Landing Gear" (Ref 32-00-30/201).
S 864-061
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
_______ SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS, ELEVATORS, FLAPS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO EQUIPMENT.
(11)
Supply hydraulic power to system No. 4 (Ref 29-11-00/201).
S 874-017
(12)
Bleed the air from the selector valve (1).
(a)
Move the control handle to the UP and DN position, two or three times.
NOTE:____This will open and close the wheel well doors. The correct operation of the wheel well doors shows the selector valve works correctly.
S 794-018
(13) Do a check of the hydraulic connections for leaks.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
S 864-019
(14)
Put the control handle in the DN position.
S 864-020
(15)
Remove hydraulic power if it is not necessary (Ref 29-11-00/201).
TASK 32-31-03-404-021
5. Nose Landing Gear and Body Landing Gear Selector Valve Installation
___________________________________________________________________
A. Special Tools and Equipment
(1) G12001 Kit (Rigging Pins)
Rigging Pin No._______________ Length (inch)_____________ Diameter (inch)
LG-1 4.0 0.309 to 0.311 LG-2 4.0 0.309 to 0.311
B. Consumable Materials
(1)
D00196 Fluid - Hydraulic - BMS 3-11, Type IV, Class 1
(2)
D00288 Lubricant - MCS 352 (Skydrol Assembly Lube)
(3)
C00308 Compound - Corrosion Preventive, MIL-C-11796, Class 3
