TM 10 4320-303-13
4.18 SLING ASSEMBLY MAINTENANCE . (Continued)
a. Remove eight nuts (Figure 4-29, 1) and four flat washers (2).
b. Remove two U-bolts (3).
c. Remove 3/4 inch (1.9 cm) wire rope assembly (4), two 1/2 inch (1.3 cm) wire rope assemblies (5), and
spreader bar (6).
4.18.2 Inspection.
a. Inspect U-bolts (3) for distortion and worn or stripped threads.
b. Carefully inspect 3/4 inch (1.9 cm) wire rope assembly (4) and two 1/2 inch (1.3 cm) wire rope
assemblies (5) for loose splices, worn or broken wires, unraveled strands, and damaged thimbles.
CAUTION
To avoid damage to wire rope, make sure lubricant is free of acids and alkalies.
c. Clean 3/4 inch (1.9 cm) wire rope assembly (4) and two 1/2 inch (1.3 cm) wire rope assemblies (5) of
dirt, sand, and other abrasives. Using clean rag, swab rope with lubricant.
d. Inspect eight nuts (1), four flat washers (2), spreader bar (6) for damage.
4.18.3 Repair. Repair consists of replacing damaged or defective components.
4.18.4 Assembly.
a. Insert two U-bolts (3) through thimbles on each end of 3/4 inch (1.9 cm) wire rope assembly (4).
b. Install two wire rope assemblies (5) on each end of spreader bar (6).
c. Position two wire rope assemblies (5) between two holes on each end of spreader bar (6).
d. Insert two U-bolts (3) through holes on each end of spreader bar (6), securing two wire rope
assemblies (5) to spreader bar (6).
e. Install two flat washers (2) and four nuts (1) on each U-bolt (3). Tighten nuts (1).
4-70
