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 34-24-00

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 MAGNETIC STANDBY COMPASS - REMOVAL/INSTALLATION
_______________________________________________
 1.  General
_______
 A.  This procedure contains two tasks. The first task is for the removal of the standby compass. The second task is for the installation of the standby compass.
 B.  The standby compass is installed forward of the forward overhead panel.
 TASK 34-24-11-004-001
 2.  Remove The Standby Compass (Fig. 401)
__________________________
 A.  Standard Tools and Equipment
 (1)  Screwdriver - nonmagnetic
 B.  References
 (1)  IPC 34-22-01 Fig. 1
 C.  Access
 (1)  Location Zones
 101/102 Flight Compartment

 D.  Procedure
 S 024-002
 CAUTION: USE ONLY TOOLS THAT ARE NOT MAGNETIC FOR THE REMOVAL AND THE
_______ INSTALLATION OF THE STANDBY COMPASS. MAGNETIC TOOLS CAN CAUSE INSTRUMENT DAMAGE.
 (1)  Do these steps to remove the standby compass:
 (a)  
Disconnect the electrical connector from the rear of the standby compass.

 (b)  
Hold the compass and remove the brass screws.

 TASK 34-24-11-404-006
 3.  Install The Standby Compass (Fig. 401)
___________________________
 A.  Standard Tools and Equipment
 (1)  Screwdriver - nonmagnetic
 B.  Reference
 (1)  
24-22-00/201, Manual Control

 (2)  
34-24-00/201, Magnetic Standby Compass

 (3)  
IPC 34-22-01 Fig. 1

 C.  Access
 (1)  Location Zones
 101/102 Flight Compartment

 D.  Procedure
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL

FWD

Magnetic Standby Compass Installation
Figure 401

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 ALL  ú ú 01 Page 402 ú Feb 25/85
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 S 424-003
 CAUTION: USE ONLY TOOLS THAT ARE NOT MAGNETIC FOR THE REMOVAL AND THE
_______ INSTALLATION OF THE STANDBY COMPASS. MAGNETIC TOOLS CAN CAUSE INSTRUMENT DAMAGE.
 (1)  Do these steps to install the standby compass:
 (a) Align the standby compass with the holes in the bracket.
 CAUTION: DO NOT USE STEEL SCREWS TO ATTACH THE COMPASS TO THE
_______ PANEL. STEEL SCREWS CAN CAUSE COMPASS INDICATIONS THAT ARE IN ERROR.
 (b)  
Install the brass screws to attach the standby compass to the bracket.

 (c)  
Connect the electrical connector to the rear of the standby compass.

 E. Magnetic Standby Compass Test
 S 864-004
 (1)  
Supply the electrical power (Ref 24-22-00/201).

 S 864-005

 (2)  
Make sure the PANEL LIGHT switch is in the ON position.

 (3)  
Make sure the standby compass edge lights are on.

 (4)  
Do the compass swing procedure (Ref 34-24-00/201).

 S 864-013

 (5)  
Remove the electrical power if it is not necessary
 (Ref 24-22-00/201).

 S 214-011
 S 714-012
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