4-142. PREPARATION OF SEMITRAILER FOR AIRCRAFT LOADING.
This Task Covers:
General mechanic's tool kit
Z Hoist equipped with van width spreader bars, cables,
Z Twenty-four Iockwashers
Personnel Required: Three
Open draincock and drain pressure tank.
Place one chock block in front of one wheel and the other chock block at the rear of the wheel on the other side.
Remove 12 ft access iadder, personnel boarding ladders, and any attaching hardware such as ladder brackets
and equipment stowage compartments that may extend below chassis siderails.
Uncouple two airlines from their connection under semitrailer chassis and connect to dummy coupling bracket
under front of left dolly siderail. Ensure that the dummy couplings are installed on service and emergency air
couplings at front of semitrailer.
Disconnect electrical wiring harness from receptacle adjacent to dolly air couplings. Hooks are provided on
chassis crossmember for stowage of free end of harness. Cover end of harness plug and doily receptacle with
pressure sensitive tape to keep out moisture.
With adequate means of support under front of semitrailer, remove landing gear and braces (para 4-77 or
Remove 24 nuts (4), Iockwashers (3), and bolts (2) securing semitrailer body (1) to dolly (5). Discard lock-