(13)
Do a check on the force transducer (AMM 22-11-11/501).
S 864-022
S 714-023
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A
737-300/400/500MAINTENANCE MANUAL
ROLL CONTROL WHEEL STEERING FORCE TRANSDUCER - ADJUSTMENT/TEST
______________________________________________________________
1. General_______
A. This procedure contains three tasks. The first two tasks are for the adjustment of the roll force transducer. In the first task, you use the F80218-42 test set to do the adjustment. In the second task, you use the DFCS BITE (airplanes with -912 and on FCC) to do the adjustment. You can use one of these tasks to do the adjustment. The third task is the roll force transducer test.
B. The adjustment of the roll force transducer is important. If the adjustment is not correct, you cannot engage the autopilot.
TASK 22-11-11-825-001
2. Roll Force Transducer Adjustment (F80218-42 Test Set)________________________________
A. Special Tools and Equipment
(1)
Test set - F80218-42
(2)
Adapter Cables - F80217-44
B. Standard Tools and Equipment
(1)
VTVM Fluke (Digital)
(2)
Shims (2) - 0.021 +0.003/-0.0 inch
C. References
(1)
12-31-11/201, Body Section 41 Access Doors and Panels
(2)
24-22-00/201, Manual Control
(3)
29-15-00/201, Hydraulic A, B, Standby System
D. Access
(1) Location Zones
202 Lower Nose Compartment
E. Prepare for the Adjustment
S 865-002
(1) Supply electrical power (Ref 24-22-00/201).
S 865-003
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL
_______ CONTROL SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDER, ELEVATORS, FLAPS, SLATS, SPOILERS, LANDING GEAR, AND THRUST REVERSERS CAN MOVE QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO PERSONS OR DAMAGE TO EQUIPMENT.
(2) Supply hydraulic power (Ref 29-15-00/201).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
SEE A FINE ADJUSTENT NUT
AILERON DRUM ASSEMBLY FORCE TRANSDUCER CABLE WASHER TAB COARSE ADJUSTMENT (ROD END) LOCKNUTS BOLT ASSEMBLY CLAMP
FWD SEE B
A
FORCE TRANSDUCER
AILERON DRUM ASSEMBLY
ASSEMBLY SHAFT
INBD
B AREAS SHIM CLEARANCE FWD
Figure 501 Roll Force Transducer Adjustment
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A 737-300/400/500MAINTENANCE MANUAL
(3) S 865-004Turn the control wheel +/- 30 degrees. wheel to the center. Then slowly turn the control
NOTE:____ The power control units must be serviceable for the correct adjustment of the cables in relation to the transducer.
(4) S 865-005Attach the DO-NOT-OPERATE tags to the control columns.
(5) S 865-006Remove hydraulic power (Ref 29-15-00/201).
(6) S 865-007Open these circuits breakers and attach the DO-NOT-CLOSE tags: (a) P6 Circuit Breaker Panel 1) AUTO FLT CONT SYS B MACH TRIM AC 2) AUTO FLT CONT SYS B MACH TRIM DC 3) AFDS MCP CRS-2 4) AUTO FLT CONT SYS B SNSR EXC AC 5) AUTO FLT CONT SYS B FCC DC 6) AUTO FLT CONT SYS B ENGAGE INTLK B 7) AUTO FLT CONT SYS B WARN LIGHT BAT
(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) AIRPLANES WITH MECHANICAL AILERON FORCE LIMITER; 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
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