32-41-51
 ALL  ú ú 01 Page 403 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
FLOW  FLOW 
FUSE  FUSE 
OVERHEAD  AUTOBRAKE 
CONTROL 
ACCUMULATOR  MODULE  ALT BRAKE 
ISOLATION  SELECTOR VALVE 
VALVE 
ANTISKID  ANTISKID 
SHUTTLE  BRAKE METERING  SHUTTLE 
VALVES  VALVE ASSY  VALVES 
(2 LOCATIONS) 
RIGHT  LEFT  LEFT 
ALTERNATE  PARKING BRAKE  ANTISKID  ALTERNATE 
ANTISKID  SHUTOFF VALVE  OUTBD CONTROL  ANTISKID 
CONTROL VALVE  FLOW BRAKE  AUTOBRAKE SHUTTLE VALVES  INBD  FLOW VALVES BRAKE  VALVE CONTROL 
FUSES  FUSES 
INBD  RIGHT ANTISKID 
OUTBD CONTROL VALVES 
WHEEL WELL 
ACCUMULATOR  AFT BULKHEAD 
SEE  A  STA 727 
BL 0 
VIEW IN THE AFT DIRECTION 
BRAKE PRESSURE 
TRANSMITTER 
PRESSURE GAGE 
CHARGING VALVE 
CHARGING 
HYDRAULIC  LINE 
LINE 
UNION 
FWD 
INBD  UNION  ACCUMULATOR 
BRAKE  CLAMP 
ACCUMULATOR 
A 
Brake Accumulator Installation 
Figure 401 

EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-41-51
 ALL  ú ú 01 Page 404 ú Mar 15/97
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 C. Procedure
 S 864-027
 (1)  
Pressurize hydraulic system B to 3000 +150/-200 psi and keep this pressure for a mimimum of two minutes (AMM 29-15-00/201).

 S 784-037

 (2)  
Make sure that the hydraulic brake pressure gage in the flight compartment is within 100 psi of the hydraulic system pressure gage of system B.

 S 864-028

 (3)  
Remove the pressure from hydraulic systems A and B
 (AMM 29-15-00/201).

 S 714-029

 (4)  
Fully push in the captain's brake pedals and release them five times.

 NOTE: Wait for approximately three seconds between each time
____
 you push and release the brake pedals.

 (a)  
Make sure that the brake accumulator pressure decreases after each time that you push and release the brakes.

 (b)  
Make sure that the brake pressure is not less than 800 psi after the fifth time that you push and release the brakes.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 32-41-51
 ALL  ú ú 01 Page 405 ú Nov 15/96
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 HYDRAULIC BRAKE PRESSURE TRANSMITTER - REMOVAL/INSTALLATION
___________________________________________________________
 1.  General_______
 A.  This procedure contains two tasks:
 (1)  
The removal of the hydraulic brake pressure transmitter (referred to as the transmitter).

 (2)  
The installation of the transmitter. The installation task includes two checks. The first check is to make sure that there are not leaks. The second check is to make sure that the brake pressure gage on the First Officer's panel (P3) shows approximately the same pressure as the direct reading brake pressure gage that is near the brake accumulator.

 NOTE:____You can only calibrate the transmitter during overhaul. You can not adjust the transmitter after you install it.
 B.  The transmitter makes an electrical signal related to a value for pressure. This signal is the input to the HYD BRADE PRESS gage on the First Officer's Instrument Panel, P3.
 C.  The transmitter is part of the hydraulic brake accumulator charging equipment installation.
 TASK 32-41-52-004-001
 2.  Hydraulic Brake Pressure Transmitter Removal (Fig. 401)____________________________________________
　
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