S 094-036

 (2)  
Do this task: "Removal of the Door Locks from the Body Landing Gear" (AMM 32-00-30/201).

 (3)
Remove electrical power, if it is not necessary (AMM 24-22-00/201).

 S 864-026
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MAINTENANCE MANUAL

 HYDRAULIC BRAKE PRESSURE GAGE - REMOVAL/INSTALLATION
____________________________________________________
 1.  General
_______
 A.  This procedure contains two tasks:
 (1)  
The removal of the hydraulic brake pressure gage

 (2)  
The installation of the hydraulic brake pressure gage.

 B.  
In subsequent steps, the hydraulic brake pressure gage is referred to as the pressure gage.

 C.  
The pressure gage is installed on the Captain's Main Instrument Panel, P1.

 D.  
The pressure gage is identified by the name HYD BRAKE PRESS, which is shown on the face of the gage.

 TASK 32-41-13-004-001
 2.  Hydraulic Brake Pressure Gage Removal (Fig. 401)
_____________________________________
 A.  General
 (1)  
In subsequent steps, the hydraulic brake pressure gage is referred to as the pressure gage.

 B.  
References

 (1)  
AIPC 32-41-13 Fig. 1

 (2)  
WDM 32-41-21

 (3)  
SSM 32-41-03

 C.  
Access

 (1)  
Location Zones
 221 Control Cabin, LH
 222 Control Cabin, RH

 D.  
Procedure

 S 024-002
 (1)  
Do these steps to remove the pressure gage:

 (a)  
Open this circuit breaker and attach a DO-NOT-CLOSE tag:

 1)  P6 Main power Distribution Panel a) 6D23 BRAKE PRESS IND

 (b)  
Turn the panel screw on the higher left side of the pressure gage to loosen the clamp.

 (c)  
Pull the pressure gage out of the panel.

 (d)  
Disconnect the electrical connector, DN120, from the pressure gage.

 TASK 32-41-13-404-003
 3.  Hydraulic Brake Pressure Gage Installation (Fig. 401)
__________________________________________
 A.  General
 (1)  
In subsequent steps, the hydraulic brake pressure gage is referred to as the pressure gage.

 B.  
References

 (1)  
AMM 24-22-00/201, Manual Control

 (2)  
AMM 29-11-00/201, Main Hydraulic Supply System

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747-400 MAINTENANCE MANUAL
P1-4 PANEL SEE A
ELECTRICAL CONNECTOR
HYDRAULIC BRAKE PRESSURE GAGE
P1-4 PANEL
A
Hydraulic Brake Pressure GageFigure 401
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MAINTENANCE MANUAL

 (3)  
AMM 31-61-00/001, Integrated Display System

 (4)  
AIPC 32-41-13 Fig. 1

 (5)  
WDM 32-41-21

 (6)  
SSM 32-41-03

 C.  
Access

 (1)  
Location Zones
 221 Control Cabin, LH
 222 Control Cabin, RH

 D.  
Procedure

 S 424-004
 (1)  
　
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