NOTE: A clearance between the spherical bearing (19) and the
____ trunnion is allowable after the installation of the nut (20).
S 434-027
(12)
Install the cotter pin in each drag brace pin.
S 424-028
(13)
Connect the actuator to the drag brace.
(a)
Move the upper link (2) into the forked terminal on the lower end of the actuator (1) to prepare for installation.
(b)
Move a nylon washer (5, 13) on each side of the swivel (14) between the swivel and the end of the actuator rod.
(c)
Put the special countersunk washer (4) on the bolt (3) with the countersink to the bolt head.
(d)
Insert the bolt through the end of the actuator rod, the drag brace swivel, and the nylon washers.
(e)
Install the plain washer (15) on the bolt (3) and install the nut.
(f)
Tighten the nut to 1500 - 1800 pound-inch.
(g)
Install the cotter pin.
NOTE: If the cotter pin holes do not align with the specified
____ torque range, try another nut or add a plain washer below the countersunk washer. Use the two methods if it is necessary.
S 114-040
(14)
Clean the drag brace pin (6), each spacer bushing (7, 9), and the inner surface of bushing in each lock link (8) fork arm with the solvent.
(a)
Lubricate the outside of the drag brace pin, the inside of the fork arm bushings, and all surfaces of spacer bushings with MIL-PRF-23827 or the preferred grease BMS 3-33 (AMM 12-20-00/301).
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S 434-039
(15) Install the drag brace pin (6).
(a) Move the lower link (10) into the fork of the upper link (2).
(b) Install the drag brace pin from the left to the right.
NOTE:____ The flat edge of the pin head must match the recess in #
the upper link.
(c) Install the center washer (12) with the raised portion matching
recess in upper link.
S 434-038
(16) Put the lubricated spacer bushings (7, 9) in each of the fork arm of the lock link (8).
S 114-054
WARNING: USE NITRILE GLOVES FOR SKIN PROTECTION AGAINST BMS 3-27
_______ (MASTINOX 6856K). IF MASTINOX GETS ON YOR SKIN, IMMEDIATELY REMOVE IT WITH WATER. IF THIS MATERIAL GETS IN YOUR EYES, IMMEDIATELY FLUSH YOUR EYES WITH WATER AND GET MEDICAL AID. THIS MATERIAL CONTAINS VERY POISONOUS AND FLAMMABLE AGENTS WHICH CAN CAUSE INJURIES TO PERSONS.
CAUTION: REMOVE UNWANTED MASTINOX FROM SURFACES WHICH WILL BE
_______ LUBRICATED. IF YOU APPLY MASTINOX TO JOINTS THAT TURN, FAILURE OF THE LANDING GEAR TO EXTEND OR RETRACT COULD OCCUR.
(17)
Clean the bolt (11) with the solvent.
(a)
Apply a thin layer of Mastinox to the bolt (11).
S 434-029
(18)
Install the bolt (11) through the drag brace pin to connect the lock link assembly.
S 434-030
(19)
Install the washer and the nut.
(a)
Tigthen the nut to 300 - 400 pound-inch.
S 434-031
(20)
Install the cotter pin in the bolt.
S 434-032
(21)
Connect the lower end of the lower link (10) to the fitting (26) on the shock strut.
(a)
Apply a thin layer of corrosion preventive compound (MASTINOX) to the shank and threads of the lower link bolt (28).
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737-300/400/500MAINTENANCE MANUAL
(b) Set the lower end of the lower link of the drag brace in the
fork of the fitting (26) on the shock strut.
NOTE:____ The nylon washer (27) must go above the left
protruding end of the bearing in the lower end of the
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