NOTE: The hydraulic system No. 1 supplies the power to the center
____ RPCP. The hydraulic system No. 2 supplies the power to the right RPCP. The hydraulic system No. 3 supplies the power to the left RPCP.
 S 862-023
 (3)  
Set the FLT CONTROL HYD POWER TAIL 1, 2, 3, and 4 switches to the SHUTOFF position. These switches are on the Pilots' Overhead Maintenance Panel, P461.

 S 862-024

 (4)  
Open these circuit breakers and attach DO-NOT-CLOSE tags:

 (a)  
P6, Main Power Distribution Panel
 1) 6J24, RUD/ELEV SENSOR
 2) 6J25, RUD/ELEV IND

 (b)  
P7, Overhead Circuit Breaker Panel
 1) 7D7, FLT CONT CMPTR SERVO L
 2) 7D8, FLT CONT CMPTR PWR L
 3) 7D12, FLT CONT CMPTR SERVO C
 4) 7D13, FLT CONT CMPTR PWR C
 5) 7D14, FLT CONT CMNPTR SERVO R
 6) 7D15, FLT CONT CMPTR PWR R

 S 012-025
 (5)  Remove the access panels 324EL, 324FL, and 324FR (optional) to get access to the RPCP (AMM 06-09-07/201).
 D. RPCP Electrohydraulic Servovalve and Solenoid Valve Removal
 S 162-026
 CAUTION:_______DO NOT LET CONTAMINATION GET INTO THE RPCP AND VALVES. THE RPCP AND VALVES ARE SENSITIVE DEVICES. THE CONTAMINATION CAN CAUSE DAMAGE AND FAILURE TO THE RPCP AND VALVES.
 (1)  
Fully clean the area around the valve and the valve mounting surfaces with a clean rag.

 (2)
Remove the lockwire from the mounting screws (AMM 20-11-28/401).

 (3)  
Hold the valve and remove the mounting screws and washers.

 S 032-027
 S 032-028
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 S 022-029
 (4)  
Remove the valve from the RPCP.

 S 032-030

 (5)  
Remove the gasket plate from the RPCP.

 S 032-031

 (6)  
Remove the O-ring from the valve (AMM 20-11-19/401).

 S 032-032

 (7)  
Install covers on the RPCP to prevent the electrical and hydraulic ports from contamination.

 TASK 22-13-05-402-033
 3.  RPCP Electrohydraulic Servovalve and Solenoid Valve Installation________________________________________________________________
 A. Standard Tools and Equipment
 (1)  
Bonding Meter - Autron T477W

 (2)  
O-Ring Installation Tool - ST848

 (3)  
Torque Wrench - Commercially available

 B. Consumable Materials
 (1)  
G00062 Fluid - Hydraulic, Fire-Resistant, BMS 3-11

 (2)  
D00013 Grease, MIL G-23927

 (3)  
D00054 Lubricant - Assembly, Skydrol, MCS 352

 C. References
 (1)  
AMM 06-09-07/201, Fin and Rudder Access Doors and Panels

 (2)  
AMM 20-11-19/401, O-Ring

 (3)  
AMM 20-11-28/401, Lockwire

 (4)  
AMM 20-22-01/601, Electrical Bonding

 (5)  
AMM 24-22-00/201, Manual Control

 (6)  
AMM 29-11-00/201, Main Hydraulic Supply System

 D. Access
 (1)  
Location Zones 325 Vertical Stabilizer Between Rear Spar and Trailing Edge

 (2)  
Access Panels 324EL Left Side Vertical Stabilizer Midway Down Rudder 324FR Right Side Vertical Stabilizer Between Upper and Lower

 Rudder 324FL left Side Vertical Stabilzer between Uper and Lower Rudder
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 E.  Prepare for the RPCP Electrohydraulic Servovalve and Soilenoid Valve Installation
 S 862-034
 (1)  Make sure that you remove hydraulic power from the applicable hydraulic system (Ref 29-11-00/201).
　
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