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 TM 9-8000
PART FIVE
CHASSIS COMPONENTS
CHAPTER 30
SUSPENSION SYSTEMS IN WHEELED
VEHICLES
Section I. OVERVIEW
bumps and jolts.
30-1. Purpose. The suspension system's main purpose
is to support the weight of the vehicle. Military vehicles,
30-2. Spring Configurations.
which are often very heavy and must be able to cross all
types of terrain, depend heavily on their suspension
a. Leaf Springs. Leaf springs usually are semielliptical
systems. In wheeled vehicles, the suspension must not
only be effective over a wide range of speed and land
in shape and are made of high quality alloy steel. There
conditions, but also must allow for steering geometry and
are two types of leaf springs. The single leaf spring, or
changes in terrain. In tracked vehicles, such as a tank,
monoleaf (A, fig. 30-1), is a single layer spring that is
the suspension system must support the vehicle so that
thick in the center and tapers down at each end.
the immense weight will not sink down, even in soft
ground. The suspension system also must absorb
Figure 30-1. Leaf Springs.
30-1
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