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(b) Put the spring rod (21) in position in the input lever (17). 
R R  (c) Apply the SPECIAL MATERIALS (Material No. 05-005) to the screw (18).
 (d) Put the screw (18), into the connection of the input lever (17) and the eye-end of the spring rod (21).
 (e) Install the washer (25) and the nut (26) on the screw (18).
 (f) TORQUE the nut (26) to 0.8 m.daN (70.79 lbf.in) and then loosen it to the next cotter pin hole.
 (g) Safety the nut (26) with a new cotter pin (27).
 (12) Connect the hydraulic system as follows: 
R R  (a) Remove the CAP - BLANKING from the unions (28) and (39) of the servo control (5). 
R  (b) Remove the CAP - BLANKING from the pipes (30) and (37).
 (c) Make sure that the hydraulic line end-fittings are serviceable. 
R R  (d) Apply the HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the line end-fittings. 
R R  (e) Connect the union nut (38) of the pipe (37) to the union (39). Do this at the pressure port of the servo control (5).
 (f) TORQUE the union nut (38) to between 1.5 and 1.7 m.daN (11.06 and 12.53 lbf.ft). 
R R  (g) Connect the union nut (29) of the pipe (30) to the union (28). Do this at the return port of the servo control (5). 

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R  (h) TORQUE the union nut (29) to between 2.0 and 2.3 m.daN (14.74 and 16.96 lbf.ft). 
R R R R  (i) Make sure that the pipes (30) and (37) have no deformation when you tighten the union nuts (29) and (38). Make sure that the pipes (30) and (37) do not touch the rear spar of the vertical stabilizer (1). 
R R  (13) Put the bonding jumper (33) in position at the servo control (5). Attach it with the screw (31) and the washer (32) (Ref. TASK 20-28-00-912-004).
 (14) Install the cable assembly and the clamp as follows: (Ref. Fig. 402/TASK 27-24-51-991-002)
 (a) Put the washer (8) on the screw (9).
 (b) Put the screw (9) into the clamp (10) and the eye-end (11).
 (c) Install the nut (12) on the screw (9) and safety the nut with a new cotter pin (13).
 **ON A/C ALL
 Subtask 27-24-51-080-050
 D. Removal of the Rigging Pins (Ref. Fig. 401/TASK 27-24-51-991-001)
 (1) Remove the rigging pin 98D27207516330, or 98D27207548000 from the differential lever (4).
 (2) Remove the rigging pin 98D27207516090, or 98D27207546000 from the bellcrank assy (6) at the servo control 1025GM (5).
 (3) Remove the rigging pin 98D27207516040, or 98D27207545000 from the travel limitation unit (3).
 Subtask 27-24-51-865-052
 E. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 5CC1, 5CC2, 14CC1, 14CC2

 

 Subtask 27-24-51-870-050
 F. Bleeding Procedure of the Rudder Servo Control
 NOTE : The test after replacement of the lower servo control 1025GM

____ (Green hydraulic system) only is described. The tests after replacement of the center servo control 3025GM (Yellow hydraulic system) and the upper servo control 2025GM (Blue hydraulic system) are almost the same.
 (1)
 Put the switch, A/SKID & N/W STRG, on the center panel 402VU to the OFF position.

 (2)
 Pressurize the reservoirs of the hydraulic systems (Ref. TASK 29-14-00-614-002).

 (3)
 Pressurize the Green hydraulic system (Ref. TASK 29-10-00-863-001).

 (4)
 Make sure that the travel range of the servo controls and the rudder are clear of tools and other items.

 (5)
 Operate the left and the right rudder pedals to move the rudder surface.

 NOTE : Make sure that there is full and free movement of the rudder
____
 pedals.

 (6)
 Operate the rudder pedals ten times and then put them in the neutral position.

 (7)
 Make sure that there are no leaks at the hydraulic connections to the servo control.

 Subtask 27-24-51-869-053
 G. Aircraft Maintenance Configuration
 (1)
 Install the rigging pin 98D27207516330, part of the RIGGING PIN SET (98D27207516000) or the PIN - RIGGING (98D27207548000) in the differential lever.

 (2)
 Remove the container.

 (3)
 Remove all the signs of hydraulic fluid from the components in the work area.

 (4)
 Depressurize the Green hydraulic system (Ref. TASK 29-10-00-864-001).

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 (5)
 Make sure that the RUD TRIM indicator on the center pedestal panel 110VU, shows zero.

 (6)
 Pressurize the Yellow hydraulic system (Ref. TASK 29-10-00-863-002) or the Blue hydraulic system (Ref. TASK 29-10-00-863-003)).
　
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