757 AMM 飞机维护手册 起落架 CHAPTER 32 - LANDING GEAR 1(83)

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 S 414-043 (20) Adjust the length of the positioner link until you can move the shock strut to a vertical position.
 NOTE:____ Use an inclinometer to find when the strut is vertical.
 S 414-044 (21) Position the main landing gear under the airplane for installation.
 NOTE:____ To move the truck easier, lift one end of it with an automotive-type axle jack. Align the centerline of the truck parallel to the centerline of the airplane.
 S 494-045 (22) Install the removal/installation equipment. supplied with the tool. Use the instructions
 S 434-046 (23) If the plug (39) was removed, apply adhesive to the plug (39) and install it in the spigot (Fig. 402). Do not remove the adhesive which is pushed out from the plug installation.
 S 434-100 (24) Put the trunnion support (41) in position on the aft trunnion bearing spigot (Fig. 402).
 S 414-101 (25) Lift the outer cylinder to put the aft trunnion support (41) in position on the MLG beam.
 S 434-102 (26) Install the bolts (40) to attach the aft trunnion support to the MLG beam. Tighten the bolts to 2200-2400 pound-inches.

 

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MAINTENANCE MANUAL

 S 624-049
 (27)
 Apply corrosion preventive compound to the inner diameter of the pin (35).

 S 414-050

 (28)
 Lower the trunnion link. Install the thread protector.

 S 644-051

 (29)
 Apply grease (BMS 3-33) to the pin (35), antirotation bolt (34), washer (37), nuts (36, 38), and the cotter pin.

 S 434-052

 (30)
 Install these parts to connect the drag strut to the trunnion link. Use the crowfoot wrench to tighten nut (38) to 840-1080 pound-inches. Loosen to the nearest lock position to install the antirotation bolt.

 NOTE: You can make the positioner link shorter and lift the forward
____ end of the truck to align the trunnion link, the drag strut, and the shock strut.
 S 434-053
 (31)
 Install the alignment pin for the trunnion link.

 S 644-054

 (32)
 Apply grease (BMS 3-33) to the pin (29).

 S 434-051

 (33)
 Install the pin to connect the trunnion link to the shock strut.

 S 094-055

 (34)
 Align the lockbolt hole and remove alignment pin.

 S 644-056

 (35)
 Apply grease (BMS 3-33) to the lubrication insert (31), the lockbolt (30), washer (33), nut (32), and the cotter pin. Install the parts. Tighten the nut (32) to 150-250 pound-inches. Loosen to the nearest lock position to install the cotter pin.

 (36)
 Remove the trunnion link support tool from the trunnion link.

 S 434-057

 (37)
 Connect the hydraulic lines and the electrical lines to the top and bottom of the connections on the trunnion link.

 S 094-058

 (38)
 Lower the outer cylinder and remove the removal/installation equipment.

 S 094-093
 

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MAINTENANCE MANUAL

 S 624-059
 (39)
 Apply corrosion preventive compound to the inner diameter of the pin (8).

 S 494-060

 (40)
 Install the thread protector.

 S 644-061

 (41)
 Apply grease (BMS 3-33) to the pin (8), spacers (9), antirotation bolt (10), washers (12, 14), nuts (11, 13) and the cotter pin.

 (a)  
Install these parts to connect the retract actuator to the shock strut.

 (b)  
Tighten the nut (11) to 70-80 pound-feet as shown using crowfoot wrench (View B-B). Loosen the nut. Tighten the nut to 5-10 pound-feet. Loosen to the nearest lock position to install the antirotation bolt.
　
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