E. Disconnect bottom end of lower side strut from side strut universal (Fig. 405). Allow strut to hang from center pivot.
F. If right gear is being removed, disconnect the ground spoiler interlock valve cable (Ref 27-62-51, R/I).
G. Disconnect reaction link.
(1)
Disconnect downlock springs (1, Fig. 406) from outboard attachments.
NOTE: To relieve attachment points of spring load, attach a cord to end of spring, pass over uplock support shaft and pull on cord or use spring expander assembly to extend springs.
(2)
Disconnect reaction link universal (3) from shock strut. Raise and support reaction link (4) clear of shock strut.
Main Gear Side Strut Lower Attachment 500
32-11-0Page 406 Figure 405 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. Jun 20/87
500 Reaction Link Attachment to Shock Strut
Aug 15/68 Figure 406 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-11-0 Page 407
H. Chock aft side of wheels and support gear by hand (stage 1, Fig. 407).
I. Disconnect trunnion link.
(1)
Disconnect upper end of drag strut (4, Fig. 408) and secure with line to shock strut.
(2)
Mark and retain drag strut upper attachment bolt (5) for installation in same location. On some airplanes, bolt is identified by a yellow head.
(3)
Remove antirotation bolt (l, Fig. 409) from walking beam arm (2).
(4)
Remove nuts and washers from trunnion link pin lockbolts (4).
(5)
Remove retainer washer (5), nut (6), and special washer (5A) from pin (9).
(6)
Install thread protector (8) on pin (9). Tap out pin.
(7)
Remove walking beam arm (2) as pin comes out.
(8)
Remove locking key (2, Fig. 408) from forward trunnion bearing (3).
(9)
Jack airplane until tires clear ground just enough for partial gear retraction and swing landing gear inboard (toward retraction).
(10)
With lead hammer, tap wide end of trunnion link up and clear of shock strut lugs (stage 2, Fig. 407). Secure link in position clear of gear.
J. Remove trunnion link.
(1)
Screw out trunnion bearing assembly (3, Fig. 408) and remove trunnion link from airplane.
(2)
If necessary, due to damage or wear, remove forward trunnion bearing assembly from link.
K. Remove bearing retainer lock retention bolts (1), and bearing retainer lock (2), and unscrew bearing retainer (3).
L. Station three men to lower gear.
M. Gently lower gear (stage 3, Fig. 407) and simultaneously roll gear aft. At the same time, drive aft trunnion bearing forward and out from landing gear beam.
CAUTION: DO NOT USE EXCESSIVE FORCE TO DRIVE BEARING FROM BEAM. BOTH BEARING AND BEAM MAY BE DAMAGED.
NOTE: If bearing resists removal, proceed as follows:
(1)
Remove lockbolt (5, Fig. 402).
(2)
Unscrew fuse nut (6) and remove washer (7) and key (8).
543
32-11-0 Page 408 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 15/80
F96391
543 Main Landing Gear Removal Sequence
Aug 01/96 Figure 407 32-11-0
Page 409
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
Trunnion Link Bearing Attachment 522
32-11-0 Figure 408 Oct 20/85
Page 410
BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
F51818
500 Trunnion Link Shock Strut Attachment
May 01/99 Figure 409 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 32-11-0 Page 411
(3)
When gear is clear of airplane, remove bearing from landing gear beam.
(4)
Clean corrosion or primer from outside of bearing and inside of bearing housing in landing gear beam.
(5)
Clean and lightly lubricate spherical bearing and shock strut trunnion journal with Aero Shell Grease 07.
(6)
Clean and lubricate trunnion link pin with Mastinox 6856K.
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: 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 CAN OCCUR.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737 AMM 飞机维护手册 起落架 LANDING GEAR(24)
