27-31-61
 ALL  ú ú 01 Page 403 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 6) AUTO FLT CONT SYS B ENGAGE INTLK B 7) AUTO FLT CONT SYS B WARN LIGHT BAT 8) SHUTOFF VALVES - FLT CONT (2 LOCATIONS) 9) SHUTOFF VALVES SPOILER
 (b)  P18 Circuit Breaker Panel
 1) AUTO FLT CONT SYS A MACH TRIM AC
 2) AUTO FLT CONT SYS A MACH TRIM DC
 3) AFDS MCP DC
 4) AFDS AIL FORCE LIM
 5) AUTO FLT CONT SYS A SNSR EXC AC
 6) AUTO FLT CONT SYS A FCC DC
 7) AUTO FLT CONT SYS A ENGAGE INTLK A
 8) AUTO FLT CONT SYS A WARN LIGHT BAT

 S 014-002
 (3)  
Open the 1103 and 3701 access doors.

 S 014-003

 (4)  
Remove the 3802 access door.

 S 494-008

 (5)  
Install the rig pin E-1 in the left forward quadrant and the rig pin E-5 in the aft quadrant (Fig. 401 and 402).

 S 864-009

 (6)  
Release tension in the elevator control cables at the turnbuckles in the aft compartment.

 (a)  
Make sure you do not disconnect the turnbuckles.

 S 494-010
 (7)  
Install clamps on the elevator control cables to prevent the cables from moving aft through the bulkhead.

 S 034-011

 (8)  
Remove the cables EA and EB from the forward quadrants.

 (a)  
Remove the retainer pin from each cable end.

 (b)  
Tag the cables.

 (c)  
Remove the screws that attach the cable support fairlead to each forward quadrant.

 (9)  
Disconnect the electrical connector at the pitch transducer (5).

 S 014-012

 (10)
 If it is necessary, get access to the forward quadrant:

 (a)  
Remove the pitch transducer (5).

 (b)  
Remove the mass balance weights from the control column.

 S 034-024
 1)  Remove the four bolts that attach the mass balance weights to the bracket assembly.
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
 (c)  Remove the ring assembly (3) and the dust seal (4) from the control column (1).
 NOTE: You can make marks on the connector (13) and the forward
____ quadrant to help align the control column during the forward quadrant installation.
 S 094-007
 (11) Remove the rig pin E-1.
 S 024-014
 CAUTION: HOLD THE CONTROL COLUMNS AND THE FORWARD QUADRANT WHEN YOU
_______ REMOVE THEM. THEY CAN FALL AND CAUSE DAMAGE TO EQUIPMENT.
 (12)
 Remove the forward quadrant (7):

 (a)  
Remove the coupling (8): 1) Remove the two inboard coupling bolts (9). 2) Remove the coupling (8).

 (b)  
Move the control column outboard until you disengage the connector (13) from the forward quadrant (7).

 (c)  
Remove the forward quadrant (7) from the airplane.

 S 034-013
 (13) If it is necessary, remove the electrical cable and clamps from the pitch transducer (5) for the replacement transducer.
 TASK 27-31-61-404-034
 3. Elevator Forward Control Quadrant Installation
______________________________________________
 A. Special Tools and Equipment
 (1)  
F52485-500, or 4MIT65B80307-1 - Bubble Protractor

 (2)  
Rig Pins (E-1 and E-5) - 0.309/0.311 inch diameter, 6.7 |0.25 inches long (MS20392-4)

 NOTE: The rig pins are part of the kit F70207-69, -78 or -83.
____
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

 27-31-61
 ALL  ú ú 01 Page 405 ú Nov 15/91
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
 B. Standard Tools and Equipment
 (1)  
Steel Scale - 0-2 feet, graduated in inches and tenths of an inch
　
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