Figure 38-5. Landing Gear.

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Figure 38-4. Fifth Wheel.

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TM-9-8000 Principles of Automotive Vehicles Manual

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Figure 38-6. Typical Three-Quarter Trailers.

TM 9-8000

Figure 38-5. Landing Gear.

also serves as a mounting location for the landing gear.

Section II.38-5.GeneralDescription. Three-quarter trailers

In some cases, a storage box is mounted to the drawbar

(usually two-wheel) are used for light loads. The entire

to house the intervehicular cable and accessories.

trailer load is balanced on the trailer suspension. Usually

approximately 15 percent of the trailer load is thrust on

38-7. Lunette. The lunette (fig. 38-6) is the eye

the tractor connection. Three-quarter trailers are built in

many sizes and are fitted with various forms of bodies

assembly mounted to the front of the drawbar. Its

ranging from the general pickup and tank (fuel and

circular shape allows it to be coupled to the pintle

water) to the more elaborate house trailers used as

assembly on the tow vehicle with ease.

hospital

and

recruiting vehicles. In some of the

heavier types, tandem axles are employed to carry the

38-8. Landing Gear. The landing gear (fig. 38-6) is

load.

used to support the front of the trailer when uncoupled

from the tow vehicle. The landing gear wheel rotates on

Two different types of three-quarter trailers are illustrated

a shaft held by a yoke that is free to turn horizontally.

in figure 38-6. The frame and body form an integral unit.

The yoke also

The crossmembers underneath the body reinforce the

TA233928

floorboard and form the rear section of the frame.

38-6. Drawbar. The drawbar (fig. 38-6) connects

the front end of the trailer body to the coupling device. It

38-4