B.  Access
(1)  Location Zone
731 Main Landing Gear

 C.  Procedure
 S 864-002
 (1)  Open these overhead panel P11 circuit breakers and attach
 DO-NOT-CLOSE tags:

 (a)  
11J7, FLIGHT RECORDER AC

 (b)  
11J8, FLIGHT RECORDER DC

 S 834-003
 (2)  Make sure the main gear downlock pins are installed
 (AMM 32-00-20/201).

 S 494-032
 WARNING:_______OBEY THE INSTALLATION PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPEN AND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSE INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
 (3)  Open the doors for the landing gear and install the door locks (AMM 32-00-15/201).
  ú

 31-31-05
 ALL  ú ú GUN.1 Page 401 ú Sep 28/02

A
757
MAINTENANCE MANUAL

Flight Recorder Accelerometer Installation
Figure 401

 ú

 31-31-05
 ALL  ú ú 02 Page 402 ú Mar 20/90

A
757 MAINTENANCE MANUAL
 S 034-005
 (4)  
Disconnect the electrical cable from the accelerometer.

 S 024-006

 (5)  
Remove the screws from the accelerometer.

 S 034-007

 (6)  
Remove the accelerometer from the airplane.

 TASK 31-31-05-404-008
 3.  Install Accelerometer (Fig. 401)_____________________
 A. Equipment
 (1)  
9540 System Test Panel (STP) - Hamilton Standard 775419 Hamilton Standard Division United Technologies Bradley Field Road Windsor Locks, CT 06096

 (2)  
981-6301-002 Data Signal Display Unit (DSDU) AlliedSignal Air Transport Avionics

 P.O. Box 97001
 15001 Northeast 36th Street
 Redmond, WA 98073-9701

 (3)  
A31007-49 Adapter Cable - Tester (recommended) A31007-30 Adapter Cable - Tester (alternative)

 (4)  
Portable Tester - Teledyne P/N 2222786
 Teledyne Controls
 12333 West Olympic Boulevard West
 Los Angeles, CA 90064

 (5)  
A31007-1 Adapter Cable - Tester

 (6)  
Portable Tester - Teledyne P/N 2229738-1 Teledyne Controls 12333 West Olympic Boulevard West Los Angeles, CA 90064

 (7)  
A31007-59 Adapter Cable - Tester

 (8)  
964-0446-001 Hand Held Download Unit (HHDLU) 27914 AlliedSignal Inc., DBA AlliedSignal Aerospace 2100 Northwest 62nd Street Fort Lauderdale, FL 33309

 (a)  AIRPLANES WITH FDR P/N 980-4700-042; The HHDLU must have mod 1 completed.

 (9)  
　
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