S 214-016

 (1)  
Do a check on the distance between the drag brace bearings of the

 nose landing gear in the wheel well structure (AMM 32-21-61/401).Procedure to Install the Drag Brace Assembly
 S 114-055
 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.
 (1)  
Clean the drag brace pins, the washers, and the nuts with solvent.

 (a)
Lubricate the pin threads and the washer faces with grease.

 NOTE: Apply a layer of Mastinox 6856K to parts which are not
____ lubricated with grease after installation (AMM 12-21-21/301).
 NOTE: Apply a layer of MIL-PRF-23827, or the preferred grease
____ BMS 3-33 to parts which are lubricated with grease after installation (AMM 12-20-00/301).
 S 934-043
 (2)  
Make a line on the drag brace pin (21) from the center of the bolt hole (18) to the threaded end of the pin.

 (3)  
Correctly pair the spherical bearing (19) with the upper drag brace.

 S 824-018
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
737-300/400/500MAINTENANCE MANUAL
 S 624-052
 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.
 (4)  
Apply a layer of Mastinox 6856K to each drag brace pin (21) (AMM 12-21-21/301).

 S 434-020

 (5)  
Set the upper drag brace and put each pin (21) through the trunnion (24) into the spherical bearing (19) on each wheel well bulkhead.

 NOTE: Keep the line on the pin (21) aligned with the center of the
____ bolt hole on the trunnion to decrease the difficulty of the bolt (18) installation.
 S 114-053
 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.
 (6)  
Clean the antirotation bolts (18) with solvent.

 S 624-022

 (7)  
Apply a thin layer of Mastinox 6856K to each bolt (AMM 12-21-21/301).

 (8)  
Install the antirotation bolt (18) in each drag brace pin (21).

 S 434-023
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú

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A
737-300/400/500MAINTENANCE MANUAL
 S 434-024
 (9)  Put the lubricated keyed washer (23) on the pin (21).
 NOTE: The two lugs on the face of the washer must fit into the
____
 slots on the spherical bearing (19).

 S 434-025
 (10)
 Install the lubricated flat washer (22) on each pin.

 S 434-026

 (11)
 Install the nut (20) on each drag brace pin and tighten by hand, then turn it to the next cotter pin castellation.
　
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