16-17. EXTEND AND RETRACT CHAINS REPLACEMENT
This Task Covers:
a. Extend chain removal
c. Extend chain installation
b. Retract chain removal
d. Retract chain installation
Tools and Special Tools
Compound, Sealing (Item 40, Appendix B)
Tool Kit, General Mechanic's: Automotive
(Item 23, Appendix D)
Vehicle parked on level ground
Inner boom removed for retract chain removal
only (Para 16-12)
a. Extend Chain Removal.
Remove parts (1 through 15).
Remove four screws (1),
lockwashers (2), washers (3), and
cover (4) from boom (5). Discard
Use care when removing snap and
retaining rings. Snap and retaining
rings are under spring tension and
can act as projectiles when released
and could cause severe eye injury.
Remove two retaining rings (6) and
one pin (7) and disconnect extend
chain (8) from clevis (9).
If damaged, remove nut (10),
washer (11), and clevis (9) from
inner boom (12).