(5)
 If necessary, remove the warning notices which tell persons not to pressurize the aircraft hydraulic systems.

 (6)
 If necessary, pressurize the aircraft hydraulic systems (Ref. TASK 29-24-00-863-001) (Ref. TASK 29-23-00-863-001).

 Subtask 27-24-00-820-050
R B. Adjustment of the Rudder Neutral Position with the reference triangle R (8).
 (1)
 On the maintenance panel 50VU:

 (a)
 Release the HYD/LEAK MEASUREMENT VALVES/B and HYD/LEAK MEASUREMENT VALVES/Y pushbutton switches (on these pushbutton swithes, the OFF legends come on).

 (b)
 Make sure that the HYD/LEAK MEASUREMENT VALVES/G pushbutton switch is pushed (on this pushbutton switch the OFF legend is off).

 (2)
 On the tail cone structure, make sure that the rudder lower

 (d)
 Adjust the length of the spring rod (6). NOTE : To adjust the clearance, turn the spring rod (6) in the

____ same direction as the spring rod (5).

 (e)
 Engage the lockwashers.

 (f)
 Tighten the nuts.

 (g)
 Make sure that the adjustment is correct after you have tightenend the nuts.

 (h)
 Safety the nuts with lockwire - corrosion resistant steel dia.

 0.8 mm (0.03 in.).

 (5)
 On the maintenance panel 50VU:

 (a)
 Push the HYD/LEAK MEASUREMENT VALVES/B pushbutton switch (on this pushbutton switch the OFF legend goes off).

 (b)
 Release the HYD/LEAK MEASUREMENT VALVES/Y pushbutton switch (on this pushbutton switch the OFF legend comes on).

R R  Installation of the Tool Figure 503/TASK 27-24-00-991-005
 1EFF : 1 1 1CES  ALL  1 111 27-24-00 Page 517 May 01/00

R R  trailing-edge is in line with the center of gravity of the reference triangle (8) or in the limits. (Ref. Fig. 502/TASK 27-24-00-991-004) If not, do these operations:
 (a) Cut and remove the lockwire from the nuts of the spring rod (5).
 (b) Loosen the nuts.
 (c) Release the lockwashers.
 (d) Adjust the length of the spring rod (5).
 (e) Engage the lockwashers.
 (f) Tighten the nuts.
 (g) Make sure that the adjustment is correct after you have tightened the nuts.
 (h) Safety the nuts with lockwire - corrosion resistant steel dia. 0.8 mm (0.03 in.).
 (3) On the maintenance panel 50VU:
 (a) Push the HYD/LEAK MEASUREMENT VALVES/Y pushbutton switch (on this pushbutton switch the OFF legend goes off).
 (b) Release the HYD/LEAK MEASUREMENT VALVES/G pushbutton switch (on this pushbutton switch the OFF legend comes on).
R R  (4) On the tail cone structure make sure that the rudder lower trailing-edge is in line with the center of gravity of the reference triangle (8) or in the limits. (Ref. Fig. 502/TASK 27-24-00-991-004) If not, do these operations:
 (a) Cut and remove the lockwire from the nuts of the spring rod (6).
 (b) Loosen the nuts.
 (c) Release the lockwashers.

 (6) On the tail cone structure make sure that the rudder lower R trailing-edge is in line with the center of gravity of the reference R triangle (8) or in the limits.
 (Ref. Fig. 502/TASK 27-24-00-991-004)
 If not, do these operations:

 (a)
 Cut and remove the lockwire from the nuts of the spring rod (1).

 (b)
 Loosen the nuts.

 (c)
 Release the lockwashers.

 (d)
 Adjust the length of the spring rod (1). NOTE : To adjust the clearance, turn the spring rod (1) in the

____ same direction as the spring rod (6).

 (e)
 Engage the lockwashers.

 (f)
 Tighten the nuts.

 (g)
 Make sure that the adjustment is correct after you have tightened the nuts.

 (h)
 Safety the nuts with lockwire - corrosion resistant steel dia.

 0.8 mm (0.03 in.).

 (7) On the maintenance panel 50VU:
 -push the HYD/LEAK MEASUREMENT VALVES/Y and HYD/LEAK MEASUREMENT VALVES/G pushbutton switches (on these pushbutton switches, the OFF legends go off).
 (8) On the tail cone structure make sure that the rudder lower R trailing-edge is in line with the center of gravity of the reference R triangle (8) or in the limits.
 (Ref. Fig. 502/TASK 27-24-00-991-004)
 If not, do the adjustment of the spring rods (1), (6) and (5) of the
　
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