Figure A. Hammerlock Installed Between Chain Leg and Crab Link Assembly.

TM 55-1670-259-20

(d) Place a 6 l/4-inch-long web keeper around the

sling webbing at a point 2 inches below the connector

link lower attaching loop at the bottom of the sling.

(e) Install the locking forks in the bottom sliding

web keeper using procedures in (b) and (c) above.

(2) Position an end link of the chain leg on one end

of the hammerlock.

(3) Slip the other half of the hammerlock through the

narrow end of the grab link.

(4) Join the two parts of the hammerlock together

(fig. 2-1A).

(5) Place the center bushing in the middle of the

hammerlock.

(6) Insert the center pin in one side of the hammer

lock and gently tap with a mallet while insuring that

the pin passes through the center bushing and the op

posite side of the hammerlock.

( 7 ) I n s e r t s p a c e r into the nylon web loop lo-

cated below the bottom sliding web keeper (fig. 2-2).

(8) Position the bottom loop and spacer between the

top fork of the grab link. Insure that the spacer is a-

lined with the bolt holes in the top of the grab link.

(9) Insert the 4-inch-long bolt through one side of

the grab link, through the spacer, and through the op

posite side of the grab link.

(10) Attach the 3/4-inch

lock nut

to the threaded

end of the bolt and tighten, using two

open-end adjust-

able wrenches or other suitable tools,

until a minimum

of one and a half threads are showing

between the end

of the bolt and the lock nut (fig. 2-3).

(11) Attach the remaining two bottom loose ends of

the nylon sling leg to a connector link (fig. 2-3).

(12) Fasten the end of the connector link with two

metal screws, using a flat-tip screwdriver.

(13) Assemble each of the remaining three sling

l e g s for the sling assembly using procedures (1)

through (12) above.

(14) Position the tops of the four nylon slings adja-

cent to each other.

CAUTION

Upon completion of web ring assembly, insure

that the web ring connector link is positioned

Figure

A. Hammerlock Installed Between Chain Leg

to the extreme right side of the web ring to avoid

and Crab Link Assembly.

inadvertent contact with a helicopter cargo hook.

Change 1

2-5