(a) Make sure that:
-
the bolts (3),
-
the bushes (4),(6),(7),
-
the nuts (9),
are clean and in good condition.
(b) Make sure that the bushes (6),(7) are tight in the levers (5),(11).
NOTE : Apply BONDING AND ADHESIVE COMPOUNDS (Material No. 08-029)
____ to the bushes (6),(7) and safety them in the levers (5),(11). Seal the bushes (6),(7) in the levers (5),(11) with SEALANTS (Material No. 09-013) and protect them with STRUCTURE PAINTS (Material No. 16-003) if necessary.
4. Procedure
_________ (Ref. Fig. 401/TASK 27-26-51-991-001) Subtask 27-26-51-910-051
A. Preparation for Installation
(1)
Apply COMMON GREASE (Material No. 04-004) to the thread of the bolts
(3) and to the interfaces of the bushes (4),(6),(7).
(2)
Apply SPECIAL MATERIALS (Material No. 05-005) to the shafts of the bolts (3).
Subtask 27-26-51-420-050
B. Installation of the Yaw Damper Servo Actuator 3CC1 and 3CC2 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.
CAUTION : YOU MUST INSTALL HYDRAULIC TUBES WITH HYDRAULIC FLUID AS
_______
LUBRICANT.
(1)
Connect the actuator (1),(2) to the lever (5).
(a)
Support the actuator (1),(2).
(b)
Put the sliding bush (4) into the flanged bush (6) of the lever (5).
(c)
Put the connection of the actuator (1),(2) in position in the lever (5).
(d)
Install the bolt (3), the washer (8) and the nut (9) at the connection of the lever (5) and the actuator (1),(2).
(2)
Connect the actuator (1),(2) to the lever (11).
(a)
Put the sliding bush (4) into the flanged bush (6) in the lever (11).
(b)
Put the connection of the actuator (1),(2) in position in the lever (11).
(c)
Install the bolt (3), the washer (8) and the nut (9) at the connection of the lever (11) and the actuator (1),(2).
(3)
TORQUE the nuts (9) to 1.5 m.daN (11.06 lbf.ft) and then loosen the nuts (9) to the next cotter pin hole.
(4)
Safety the nuts (9) with new cotter pins (10).
(5)
Remove the blanking caps from the unions (17),(20) of the actuator (1),(2).
(6)
Remove the blanking caps from the ends of the pipes (16),(19).
(7)
Apply HYDRAULIC FLUIDS (Material No. 02-003) to the threads of the line end-fittings.
(8)
Connect the union nut (18) of the pipe (19) to the union (20) at the pressure port of the actuator (1),(2).
(9)
Connect the union nut (15) of the pipe (16) to the union (17) at the return port of the actuator (1),(2).
NOTE : Make sure that the pipes (16),(19) do not rub on the
____
structure.
(10)
TORQUE the union nut (18) to between 1.5 and 1.7 m.daN (11.06 and
12.53 lbf.ft).
(11)
TORQUE the union nut (15) to between 2.0 and 2.3 m.daN (14.74 and
16.96 lbf.ft).
(12)
Remove the drainage container.
(13)
Remove all signs of hydraulic fluid from the components and the work area.
(14)
Remove the blanking caps from the electrical connector (12),(14) and the plugs on the actuator (1),(2).
(15) Connect the electrical connectors (12),(14) to the actuator (1),(2). Subtask 27-26-51-865-051
C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 5CC1, 5CC2, 14CC1, 14CC2.
Subtask 27-26-51-080-050
D. Preparation for the Test
(1) Pressurize the reservoir of the Green and the Yellow hydraulic system (Ref. TASK 29-14-00-614-002).
R (2) Remove the rigging pin 98D27207516330, part of the RIGGING PIN SET R (98D27207516000), or the PIN - RIGGING (98D27207549000) from the yaw R damper bellcrank.
Subtask 27-26-51-710-050
E. Test
(1) Do an operational test of the yaw damper (Ref. TASK 22-63-00-710-001).
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