S 864-051

 (13)
 If you will replace the brake that you removed, and the new brake assembly does not have the inner part of the brake disconnect installed, do the steps that follow:

 (a)  
Use a wrench and the brake disconnect valve socket to remove the inner part of the brake disconnect valve from the brake.

 NOTE: When you remove the the disconnect valve from the brake,
____ do not spill hydraulic fluid on the brake or adjacent structure.
 (b) Remove the O-ring and the backup rings. Discard the O-rings.
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A 737-300/400/500MAINTENANCE MANUAL
 S 214-016
 (14) Visually examine the brake attachment flange for signs of cracks.
 NOTE: Cracks will start from the brake mounting holes and move in
____ to the axle or to the outer diameter of the flange. No more than four holes can have cracks that move to the outer diameter.
 S 214-017
 (15)
 Visually examine the main gear axle between the brake mounting flanges for signs of cracks.

 (a)  
If cracks are found, replace the shock strut of the main landing gear (AMM 32-11-21/401).

 S 494-018
 (16)
 Do a check for signs of heat damage on the axle brake flanges.

 (a)  
If there are signs of heat damage, repair the main gear axle (AMM 32-11-85/801).

 TASK 32-41-41-404-019
 2. Main Gear Brake Installation
_____________________________
 A. Standard Tools and Equipment
 (1)  
Socket Equipment, Brake Disconnect Valve - C32011-7

 B.
Consumable Materials

 (1)  
D50013 Grease - Aeroshell #22 (preferred)

 (2)  
D50025 Grease - BATCO X8401-2

 (3)  
D00388 Grease - Aeroshell #5 (Optional)

 (4)  
D50005 Grease -Mobil Aviation Grease SHC 100 (Optional)

 (5)  
D00006 Ease - Off 990

 (6)  
A00164 Adhesive - BAC 5010

 (7)  
D00400 Fluid - Hydraulic, BMS 3-11

 C.
References

 (1)  
AMM 07-11-11/201, Airplane Jacking

 (2)  
AMM 12-12-00/301, Hydraulic Reservoir

 (3)  
AMM 12-15-51/301, Tire Pressure

 (4)  
AMM 29-15-00/201, Hydraulic System

 (5)  
AMM 32-11-85/801, Main Landing Gear Axle

 (6)  
AMM 32-41-00/201, Hydraulic Brake System

 D.
Access

 (1)  
Location Zone
 101 Control Cabin - Left
 102 Control Cabin - Right
 310 Left Main Landing Gear
 410 Right Main Landing Gear

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A
737-300/400/500MAINTENANCE MANUAL
 E.  Prepare to Install the Brake (Fig. 402)
 S 874-072
 (1)  Do the following steps to bleed the brake on the bench.
 NOTE: These steps are optional that may reduce the time required
____
 to bleed the brake.

 (a)  
Set the brake on a bench in its usual, upright position as installed on the airplane (brake port on the top).

 (b)  
Apply a light coating of BATCO X8401-2 grease on the brake half of the brake disconnect, from the diametrical surface above the upper retaining ring to the top of the brake half.

 (c)  
Install the brake coupling half of the disconnect.

 1)  Tighten the brake coupling half of the disconnect to 20-25 pound-feet torque.

 (d)  
Attach a hydraulic line with a mating hose disconnect between the brake assembly and a hydraulic pressure source that can supply a minimum of 250 psi of hydraulic fluid.

 (e)  
Carefully bleed the brake assembly as follows: 1) Remove the bleeder screw and the washer from the bleeder

 valve. 2) Connect a flexible hose to the bleed valve of the brake. 3) Put the free end of the hose into a clean receptacle not
　
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