(a)
Put the container below the hydraulic connections (30),(37) to collect the unwanted fluid.
(b)
Disconnect the union nut (38) of the pipe (37) from the union
(39)
at the pressure port of the servo control (5).
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(c)
Disconnect the union nut (29) of the pipe (30) from the union
(28)
at the return port of the servo control (5).
(d)
Drain the remaining hydraulic fluid into the container.
(e)
Put the blanking caps on the pipes (30),(37).
(f)
Put the blanking caps on the unions (28),(39) of the servo control (5).
(g)
Remove the screw (31) and the washer (32) and disconnect the bonding jumper (33) from the servo control (5).
NOTE : Do not disconnect the bonding jumper (33) from the
____ structure unless a repair or a new installation is necessary.
(3)
Disconnect the spring rod (21) from the input lever (17) of the servo control (5) as follows: (Ref. Fig. 403A/TASK 27-24-51-991-003-A)
(a)
Remove and discard the cotter pin (27).
(b)
Remove the nut (26), the washer (25) and the screw (18).
(c)
Move the end of the spring rod (21) away from the input lever (17).
(d)
Temporarily safety the flanged bushes (19),(24) and the sliding bush (20) in the input lever (17).
(4)
Disconnect the servo control (5) from the bracket (65) of the rudder
(2)
as follows:
(Ref. Fig. 404A/TASK 27-24-51-991-004-A)
(a)
Remove and discard the cotter pin (98).
(b)
Remove the locking cap (97), the nut (96), the washers (90) and the washer (95).
NOTE : Do not remove the bolt (62) at this time.
____
(5) Disconnect the servo control (5) from the bracket (52) of the vertical stabilizer (1) as follows: (Ref. Fig. 403A/TASK 27-24-51-991-003-A)
(a) Remove and discard the cotter pin (88).
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Servo Control Connection at the Rudder
Figure 404A/TASK 27-24-51-991-004-A
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(b) Remove the locking cap (87), the nut (86), the washers (89) and the washer (85).
NOTE : The servo control weighs approx. 5.5 kg (12.1254 lb).
____
(6)
Remove the bolt (62) from the bracket (65) of the rudder (2).
(7)
Remove the bolt (55) from the bracket (52) of the vertical stabilizer (1).
(8)
Remove the servo control (5) together with the the clamp (10) from the brackets (65),(52).
(9)
Remove the sealing rings (74),(35) from the eye-end bearings of the servo control (5).
(10)
Remove the locking plate (64), the washer (77) and the bushes (73),(75) from the bracket (65) of the rudder (2).
(11)
Remove the locking plate (53), the washer (58) and the bushes (34),(36) from the bracket (52) of the vertical stabilizer (1).
(12)
Remove the clamp (10) from the servo control (5).
R **ON A/C 001-003, 051-054,
Subtask 27-24-51-020-056
B. Removal of the Rudder Servo Control 1025GM/2025GM/3025GM
CAUTION : USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN
_______ YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU USE THE SECOND WRENCH, YOU WILL NOT LOOSEN OR TIGHTEN THE UNION TOO MUCH.
NOTE : If you must remove the three servo controls 1025GM/2025GM/3025GM
____
remove them in this sequence for easy removal:
-upper servo control 2025GM - Blue hydraulic system,
-center servo control 3025GM - Yellow hydraulic system,
-lower servo control 1025GM - Green hydraulic system. Complete the installation, adjustment and test of the upper and center servo controls before you remove the lower servo control.
NOTE : The removal of the upper servo control only is described. The
____ removal of the center servo control and the lower servo control is almost the same.
(1) Remove the cable assembly and the clamp (only at upper servo control 2025GM) as follows: (Ref. Fig. 402/TASK 27-24-51-991-002)
(a)
Remove and discard the cotter pin (13).
(b)
Remove the nut (12).
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