5-11. LANDING GEAR MAINTENANCE (EARLY MODEL).
This Task Covers:
l Two spring pins
l Four self-locking nuts
l Six retaining rings
l Ten lubrication fittings
l General mechanics tool kit
l Thirty-seven lockwashers
l Hydraulic jack
Personnel Required: Two
l Retaining ring pliers
Chock wheels and raise front of chassis at front crossmember with jack until weight of semitrailer is off support
leg assemblies (26). Position jackstands under frame and lower semitrailer onto jackstands.
Remove four retaining rings (22), bearing sleeves (23), and two brace hinge pins (24) from left and right upper
and lower brace assemblies (18 and 25). Discard retaining rings.
Drive out two spring pins (17) securing upper braces (18) to cross shaft (8) of actuator assembly (12). Discard
Remove 12 nuts (4), lockwashers (3), and capscrews (1) from two semitrailer brackets (2) on each side of frame.
Slide two semitrailer brackets (2) and upper braces (18) away from frame and off cross shaft (8).
Turn socket head setscrew (9) counterclockwise a minimum of two complete turns. DO NOT remove setscrew.
Block rear of actuating leg assembly (12).
Remove two capscrews (6), lockwashers (10), and nuts (11) from bearing block (7) and frame crossmember.
Remove cross shaft (8), two roller arms (5) and bearing block (7) as a unit by sliding the cross shaft to the left as
far as possible, then down to the right until unit is out of the frame holes.
Remove two nuts (31), Iockwashers (30), and capscrews (35) from lower ends of diagonal braces (27), cross
tube assembly (36) and support leg assemblies (26), Discard Iockwashers.
Remove two capscrews (29) and lockwashers (28) from upper ends of diagonal braces (27) and support leg
assemblies (26). Remove diagonal braces. Discard lockwashers.
Remove capscrew (32), lockwasher (33), and nut (34) and separate diagonal braces (27). Discard