S 582-074

 (13)
 Lift the airplane approximately 18 inches (AMM 07-11-01/201).

 S 642-075

 (14)
 Lubricate the new seals with MIL-H-5606, to help you extend them over the fork of the inner cylinder, make sure the inner cylinder is very clean or the seals can be contaminated.

 NOTE: You can wrap the fork of the inner cylinder with a thin sheet
____ of plastic to protect the seals. You can pull the plastic up from the bottom to help roll the new seals up the inner cylinder.
 S 862-076
 (15)
 In the sequence that follows, extend the new seals around the fork of the inner cylinder:

 (a)
One active dynamic seal (1)

 (b)
One active static seal (2)

 (c)
Two spare dynamic seals (3)

 (d)
Two spare static seals (4)

 S 842-234
 (16) Move the seals above the attach hole for the truck assembly.
 S 492-077
 CAUTION: USE A ROPE TO HOLD THE LOWER END OF THE INNER CYLINDER AFTER
_______ YOU REMOVE THE SHOCK STRUT LOCK. DAMAGE CAN OCCUR TO THE INNER CYLINDER OR THE TRUCK ASSEMBLY IF THEY ARE NOT HELD.
 (17)
 Remove the shock strut lock and lower the end of the inner cylinder.

 S 822-078

 (18)
 Align the attach holes of the truck beam to the attach holes of the inner cylinder.

 (19)
 Connect the truck assembly to the inner cylinder (AMM 32-11-17/401).

 S 412-078
 

 32-11-25
 ALL  ú ú 01 Page 219 ú Sep 28/99
 
A
757
MAINTENANCE MANUAL

 S 012-079
 (20)
 Disconnect the lower torsion link from the shock strut (AMM 32-11-16/401).

 S 842-080

 (21)
 Keep the links away from the work area.  They could cause damage to the surface of the inner cylinder.

 S 862-081

 (22)
 Put axle jacks below the truck.

 S 682-083

 (23)
 Lift with the jacks until you can see approximately 9 inches of chrome on the inner cylinder (AMM 07-11-03/201).

 S 842-082

 (24)
 Wind a cloth pad around the inner cylinder.  This will prevent damage to the surface of the cylinder if the gland nut moves down.

 S 092-084

 (25)
 Remove the lock key for the gland nut.

 S 012-085

 (26)
 Use a spanner wrench to remove the gland nut.

 S 492-079

 (27)
 Install the gland nut retainer assembly.

 S 842-086

 (28)
 Move retainer with the gland nut, and the scraper, to the bottom of the inner cylinder.

 (a)  
Wind a cloth around the gland nut and the scraper to protect them.

 S 492-080
 (29)
 Install the seal protector strip and ring assembly around the inner cylinder. Move it up into the outer cylinder and hold it there with the strap.

 (30)
 Put the puller assembly around the inner cylinder.

 (31)
 Install the puller pins in the lower bearing.

 (32)
 Tighten the puller assembly.

 (33)
 Install a strap tightly around the fork of the inner cylinder.

 S 842-087
 S 492-088
 S 432-089
 S 492-090
 

 32-11-25
 ALL  ú ú 01 Page 220 ú Sep 28/99
 
A

757 MAINTENANCE MANUAL
 S 862-079
 (34)
 Lower the axle jacks (Ref 07-11-03).

 S 012-091

 (35)
 Pull the lower bearing out of the outer cylinder.
　
中國航空網 www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：757 AMM 飛機維護手冊 起落架 CHAPTER 32 - LANDING GEAR 1(130)