S 034-042
(6) Connect the hydraulic lines.
S 844-043
(7) Move the nose landing gear aft while you put the inner cylinder into
the outer cylinder.
S 494-044
(8) Install the downlock on the nose landing gear (AMM 32-00-20/201).
S 844-045
(9) Use the cam centering tool to move the lower centering cam up the
inner cylinder into the correct position.
NOTE:____ The notch in the lower centering cam shows through the hole
for the oil charging valve.
S 844-046
(10) Use the plug assembly to hold the lower centering cam in position.
S 844-047
WARNING: KEEP YOUR HANDS AWAY FROM THE TOP OF THE RETAINER BEARING AND
_______ THE LOWER BEARING. THE LOWER CENTERING CAM CAN MOVE DOWN QUICKLY AND CAN CAUSE INJURY TO PERSONS.
(11) Move the lower bearing up the inner cylinder into the outer cylinder.
NOTE: If you cannot move the lower bearing with your hand, use the
____ ram assembly to move it into position. If the lower centering cam has moved out of position, use the cam centering tool to put it into position.
S 034-048
(12)
Loosen the seal protector screws.
S 844-049
(13)
Carefully move the seal protectors down.
S 094-050
(14)
Remove the seal protectors.
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MAINTENANCE MANUAL
S 094-051
(15)
Remove the clamp assembly.
S 644-052
(16)
Lubricate the threads of the gland nut with MIL-G-4343 grease.
S 034-053
(17)
Install the gland nut.
S 434-054
(18)
Use the wrench adapter for the gland nut to tighten the nut to 125-150 pound-feet. Loosen the nut to align the slots.
S 824-055
(19)
Align the slots in the gland nut with the slots in the steering nut.
S 644-056
(20)
Lubricate the lockplate with BMS 3-33 grease.
S 434-057
(21)
Install the lockplate with the bolts.
S 434-058
(22)
Tighten the bolts for the lockplate to 25-50 pound-inches.
S 434-059
(23)
Install a lockwire on the bolts.
S 094-060
(24)
Remove the plug assembly.
S 434-061
(25)
Install the oil charging valve.
(26)
Tighten the valve to 20-25 pound-feet.
(27)
Tighten the swivel nut on the oil charging valve to 5-7 pound-feet.
(28)
Install the oil charging valve cap.
S 434-062
S 434-063
S 434-074
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S 434-064 (29) Connect the lower torsion link to the inner cylinder of the shock strut (AMM 32-21-09/401).
S 614-069 (30) Do the servicing for the shock strut (AMM 12-15-02/301).
S 584-070 (31) Lower the airplane and remove the jacks (AMM 07-11-02/201).
S 094-071
ú ú ú WARNING:_______ OBEY THE REMOVAL PROCEDURE FOR THE DOOR LOCKS. THE DOORS OPENAND CLOSE QUICKLY. THE MOVEMENT OF THE DOORS CAN CAUSEINJURIES TO PERSONS AND DAMAGE TO EQUIPMENT.
(32) Remove the door locks from the landing gear doors and close the doors (AMM 32-00-15/201).
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NOSE GEAR SHOCK STRUT SEALS - MAINTENANCE PRACTICES
___________________________________________________
1. General_______
A. This procedure contains three tasks. Task one is an inspection for seal leaks. Task two replaces the seals with spare seals which are stored in grooves in the lower bearing of the shock strut. To do this procedure, it is not necessary to disassemble the shock strut. Task three replaces the seals and the spare seals. To do task three it is necessary to remove the shock strut inner cylinder (AMM 32-21-24/401).
TASK 32-21-25-792-134
2. Shock Strut Seal Leak Inspection________________________________
A. General
(1)
This task gives the instructions to make sure a shock strut is serviceable when you find fluid leakage on the inner cylinder.
B.
References
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 2(13)
