S 034-012
(6)
Remove the antirotation bolt from the arm of the walking beam (14).
S 984-013
(7)
Turn the arm for the walking beam to permit removal of the
actuator (6) and the walking beam assembly (3).
S 034-014
(8)
Hold the actuator assembly and remove the bolts that attach the stud assembly (8) and the beam hanger shaft to the bracket on the structure (View C, Fig. 401) (AMM 32-32-93/401).
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 024-074
CAUTION:_______DO NOT LET THE BEAM HANGAR HIT THE ACTUATOR. WHEN YOU REMOVE THE ACTUATOR ASSEMBLY, THE BEAM HANGAR CAN TURN AROUND THE BOLT (7) AND HIT THE ACTUATOR. DAMAGE TO THE BEAM HANGAR CAN OCCUR IF THE BEAM HANGAR HITS THE ACTUATOR.
(9)
Remove the actuator (6) from the airplane.
S 024-016
(10)
Do the steps that follow to remove the actuator (6) from the assembly:
(a)
Remove the bolt (7) that holds the actuator (6) and the walking beam (3) to the beam hanger (5) (View B, Fig. 401).
NOTE: There are flanged steel bushings (4) installed in the
____ beam hanger (5). There are nylon spacers between the actuator (6) and the beam hanger (5) and a special washer under the nut.
(b)
Remove the hydraulic fitting (17) and the one way restrictor (18) from the actuator (View E, Fig. 401).
(c)
Discard the packings.
TASK 32-32-11-404-017
3. Install the Actuator Assembly for the Main Landing Gear (Fig. 401)_______________________________________________________
A. Consumable Materials
(1)
G01395 Compound - Mastinox 6856K, Corrosion Inhibitive
(2)
D00633 Grease - BMS 3-33
(3)
D00013 Grease - MIL-G-23827
(4)
D00014 Grease - MIL-G-21164 (Optional)
B.
References
(1)
AMM 12-21-11/301, Main Landing Gear Lubrication
(2)
AMM 32-32-93/401, Beam Hanger
C.
Access
(1)
Location Zones
310 Left Main Landing Gear
410 Right Main Landing Gear
D.
Prepare to Install the Actuator Assembly
S 434-019
(1) Install the hydraulic fitting (17) in the UP port and the one way restrictor (18) in the DOWN port of the actuator (6) with new packings.
NOTE: Install the restrictor with the hex away from the port.
____
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
S 644-084
WARNING: USE NITRILE GLOVES FOR SKIN PROTECTION AGAINST BMS 3-27
_______ (MASTINOX 6856K). IF MASTINOX GETS ON YOUR 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: UNWANTED MASTINOX MUST BE REMOVED FROM THE SURFACES WHICH WILL
_______ BE LUBRICATED WITH A GREASE NIPPLE. IF YOU APPLY MASTINOX TO THE JOINTS WHICH TURN, IT CAN CAUSE A FAILURE OF THE LANDING GEAR TO EXTEND OR RETRACT.
(2) Clean and lightly lubricate all the bolts, pins, and bearing surfaces with grease immediately before you assemble it.
NOTE: Apply a layer of Mastinox 6856K to parts which are not
____ lubricated with grease after installation (AMM 12-21-11/301).
NOTE: Apply a layer of MIL-PRF-23827 grease, or the preferred
____ grease BMS 3-33 to parts which are lubricated with grease after installation (AMM 12-20-00/301).
S 434-080
CAUTION:_______DO NOT LET THE BEAM HANGAR HIT THE ACTUATOR. WHEN YOU ASSEMBLE THE ACTUATOR ASSEMBLY, THE BEAM HANGAR CAN TURN AROUND THE BOLT (7) AND HIT THE ACTUATOR. DAMAGE TO THE BEAM HANGAR CAN OCCUR IF THE BEAM HANGAR HITS THE ACTUATOR.
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