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

 Rudder 324FL Left Side Vertical Stabilizer Between Upper and Lower Rudder
 D.  Procedure
 S 866-014
 (1)  
Remove hydraulic pressure from the hydraulic systems 1, 2, 3, and 4 (AMM 29-11-00/201).

 S 866-015

 (2)  
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.

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MAINTENANCE MANUAL

 S 866-016
 (3)  Open these circuit breakers and attach the DO-NOT-CLOSE tags:
 (a) P6, Main Power Distribution Panel
 1) 6H24, RUD/ELEV SENSOR
 2) 6H25, 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 CMPTR SERVO R
 6) 7D15, FLT CONT CMPTR PWR R
 S 026-013
 (4)  Remove the access panels 324EL, 324FR, and 324FL (AMM 06-09-07/201).
 S 216-012
 (5)  For the RPCP mechanical linkage, examine these parts for bends,
 cracks, corrosion, or worn areas:
 (a) RPCP output arms.
 (b) Control rods.
 (c) Bearings on the control rods.
 (d) Bolts and nuts which attach the control rods.
 (e) Bolts and nuts which attach the RPCP output arms and control
 rods.
 S 216-011
 (6)  For the override mechanism, examine these parts for bends, cracks,
 corrosion, or worn areas:
 (a) Control rod which attaches to the override mechanism cam.
 (b) Override mechanism cam.
 (c) Link assembly of the override mechanism cam follower.
 (d) Override mechanism output crank.
 (e) Clevis/tube assembly.
 (f) Bearings on the parts.
 (g) Bolts and nuts which attach the parts.
 (h) Bolt and nut which attach the override mechanism and the
 bracket.
 S 866-009
 (7)  Close these circuit breakers and remove the DO-NOT-CLOSE tags:
 (a) P6, Main Power Distribution Panel
 1) 6H24, RUD/ELEV SENSOR

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747-400 MAINTENANCE MANUAL
 2) 6H25, 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 CMPTR SERVO R
 6) 7D15, FLT CONT CMPTR PWR R

 S 426-010
 (8)  Install the access panels 324EL, 324FR, and 324FL
 (AMM 06-09-07/201).

 TASK 22-13-04-206-001
 3.  RPCP Mechanical Linkage and Override Mechanism Full Inspection (Fig. 601)______________________________________________________________
 A. General
_______
 (1)  This procedure is for a full inspection of the worn areas. To do this check, you have to remove the RPCP mechanical linkage and override mechanism. Usually you use this procedure when you do the overhaul of the RPCP mechanical linkage and override mechanism.
 B. Standard Tools and Equipment
 (1)  
Micrometer

 (2)  
Vernier Caliper

 C. Procedure
 S 026-002
 (1)
Remove the parts that are necessary for a full inspection.

 S 226-003

 (2)  
Examine the parts:

 (a)  
Use a micrometer or a Vernier Caliper to measure the parts.
　
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