Figure 4-5. Typical sling loading of basic HMMWV for external lift by helicopter.

25 August 1988

TM 55-2320-280-14

(f) Using the securing device under the dash, tie down the steering wheel. Ensure that the wheels

are pointed straight ahead.

(g) Fold bows and tarps or troop enclosures on M998 and secure in bed of vehicle.

(4) Rigging

(a) Forward Sling-Leg Set.

(1) Connect two sling legs to one 10,000-pound apex fitting.

(2) Attach one sling leg to each lift shackle that protrudes through the hood, and secure each

chain by link 80 in the grabhook.

(3) Secure all excess chain with 2-inch-wide tape.

(b) Aft Sling-Leg Set.

(1) Connect the rear sling legs to the same 10,000-pound apex fitting used for the front sling

legs.

(2) For the M998 and M966 vehicles, thread each chain end through the eyelet opening in the

upper corners of the tailgate (fig. 4-8). Loop each chain end through the lift shackles on the rear bumper, and

thread the chain back through the eyelet openings in the tailgate. Secure each chain by link 3 in the grabhook.

For the M1037 shelter carrier, move the lifting shackle to outside of the bumper and route each chain around

the shelter and loop the chain through the lift shackles on the rear bumper. Secure each chain by link 30 in the

grabhook.

(3) Secure all excess chain with 2-inch-wide tape.

d. For other methods of external lifting of the HMMWV, refer to FM 55-450-1, Army Helicopter External

Load Operations.

Figure 4-5. Typical sling loading of basic HMMWV for external lift by helicopter.

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