(4)
Remove the three bolts and washers from the brake disconnect valve.
S 494-049
S 024-006
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A
737-300/400/500MAINTENANCE MANUAL
MAIN LANDING GEAR
BRAKE DISCONNECT VALVE
ATTACHING BOLT
AND WASHER BRAKE MOUNTING
(3 LOCATIONS) NUT AND WASHER
(EXAMPLE)
BRAKE DISCONNECT
PHENOLIC OR
VALVE OUTER BODY
METAL BRAKE MOUNTING
SEE A
GASKET
HYDRAULIC
LINE
AXLE
INNER PART OF BRAKE
DISCONNECT VALVE
SEE A FWD
BRAKE SHEAR STUD
ASSEMBLY AXLE SLEEVE (EXAMPLE)
1
SHEAR STUD (2 LOCATIONS)
2
BRAKE MOUNTING RETAININGBOLT AND WASHER RING(EXAMPLE) INNER GREASE SEAL
OUTER WHEEL
BEARING
INNER WHEEL BEARING
HUBCAP
WASHER
HUBCAP MOUNTING BOLT AND WASHERS (3 LOCATIONS)
MAIN GEAR WHEEL AND TIRE
OUTER GREASED AXLE NUT
SEAL (IF INSTALLED)
1 SHEAR STUD INSTALLATION RETAINING
ON AIRPLANES WITH RING RETAINING RING PHENOLIC GASKET (IF INSTALLED) INSTALLATION
HUBCAP FAIRING 2 SHEAR STUD INSTALLATION
(OUTBOARD WHEELS ONLY) ON AIRPLANES WITH METAL GASKET INSTALLATION
Main Gear Brake Installation
Figure 401 (Sheet 1)
C55518
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A
737-300/400/500MAINTENANCE MANUAL
BOLT (3 LOCATIONS)
A
Brake Hydraulic - Disconnect Installation
Figure 401 (Sheet 2)
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C56003
A 737-300/400/500MAINTENANCE MANUAL
HOSE HALF
APPLY BATCO X8401-2 GREASE ON UNDERSIDE OF HOSE HALF FLANGE BETWEEN ARROWS AND TO THREADS AND SHANKS OF MOUNTING BOLTS APPLY BATCO X8401-2 GREASE ON BRAKE HALF BETWEEN ARROWS
BRAKE HALF
Brake Hydraulic Disconnect
Figure 402
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L97351
A
737-300/400/500MAINTENANCE MANUAL
S 014-007
(5) Remove the outer body of the brake disconnect valve. Leave the inner part of the disconnect valve in the brake pressure port.
NOTE: The part of the brake disconnect that is attached to the
____ brake hose seals the hydraulic lines to prevent fluid loss and keep contamination out of the brake hydraulic system. The part of the brake disconnect that is installed in the brake seals the brake housing and allows fill and bleed procedures to be done on the brake assembly away from the airplane.
S 844-009
(6)
Lift the wheel and tire assembly with jacks until it is clear of the ground (AMM 07-11-11/201).
S 014-010
(7)
Remove the main gear wheel (AMM 32-45-11/401).
S 494-013
(8)
Remove the axle thread protector and install the axle protection sleeve.
S 494-014
(9)
Install the axle thread protector.
S 024-012
(10)
Remove the brake mounting bolts.
S 024-015
(11)
Remove the brake assembly from the axle.
S 024-050
(12)
Remove the brake mounting gasket, if it is unserviceable, from the brake mounting flange on the axle.
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