(b)  
Do this task: "Remove the Pressure from Rudder Hydraulic Systems A and B" (Ref 27-21-00/201).

 (c)  
Loosen the two sensor clamp screws.

 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
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737-300/400/500MAINTENANCE MANUAL
 (d)  Turn the sensor until the mark on the shaft aligns with the mark on the sensor.
 NOTE: No special position of the aligned marks is
____
 necessary.

 (e)  
Turn the sensor to get a display of 0000.

 (f)  
Tighten the clamp screws to 30-35 pound-inches.

 (g)  
Put the rudder in the positions shown in the table.

 (h)  
At each position, make sure the portable tester display agrees

 with the values in the table. ~............................................................ | RUDDER POSITION | PORTABLE TESTER | | | DISPLAY | .............................................................. | Rudder at index mark | 7745 to 0037 | .............................................................. | 16 inch left of index mark | 7274 to 7365 | .............................................................. | 16 inch right of index mark | 0421 to 0511 | 2..............................….............................1
 F. Put the Airplane in its Usual Condition
 S 865-077
 (1)  
Put the TEST--NORMAL switch to the NORMAL position.

 S 865-078

 (2)
Put the POWER switch on the portable tester to the OFF position.

 (3)  
Disconnect the portable tester from the flight data recorder system.

 (4)  
Close the forward access door, 1103.

 S 865-082

 (5)  
If the hydraulics system are pressurized, do this task: "Remove the Pressure from Rudder Hydraulic Systems A and B" (Ref 27-21-00/201).

 S 865-083

 (6)  
Remove the electrical power if it is not necessary
 (Ref 24-22-00/201).

 S 085-079
 S 415-081
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù.
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737-300/400/500MAINTENANCE MANUAL
 RUDDER PEDAL POSITION SENSOR - REMOVAL/INSTALLATION
___________________________________________________
 1.  General_______
 A.  This procedure has two tasks. There is one task for the removal and one task for the installation of the rudder pedal position sensor.
 B.  For these tasks it is necessary to open the forward access panel, 1103.
 TASK 31-24-42-004-001
 2.  Rudder Pedal Position Sensor - Removal______________________________________
 A.  Standard Tools and Equipment
 (1)  Rigging Pin R-4 of rigging pin kit F70270
 B.  References
 (1)  27-21-00/201, Rudder and Rudder Trim Control System
 C.  Access
 (1)  
Location Zone
 202 Lower Nose Compartment

 (2)  
Access Panel
 1103 Forward Access Panel

 D.  Prepare for Removal
 S 864-002
 (1)  
Remove the pressure from the rudder hydraulic system (Ref 27-21-00/201).

 S 864-003

 (2)  
Open these circuit breakers:

 (a)  P18 Load Control Panel 1) FLIGHT RECORDER AC 2) FLIGHT RECORDER DC 3) FLIGHT RECORDER POSITION SENSORS
 S 014-004
 (3)  Remove the forward access panel, 1103.
 E.  Sensor Removal
 S 864-005
 (1)  
Set the rudder pedals to the neutral position.

 (2)  
Install the rigging pin R-4.

 S 034-007

 (3)  
　
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