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 TM 9-8000
Figure 33-16. Configurations of Power Steering Systems
Section IV. AIR STEERING
would be used usually have an airbraking system from
33.13. Purpose. Heavy vehicles are difficult to steer
which the air pressure can be obtained. If there is no
because large loads on the tires tend to increase their
airbraking system, an air compressor and reservoir are
turning resistance. This problem cannot be overcome
required to obtain the necessary air pressure.
satisfactorily by using a steering gear with a very high
reduction ratio because it would require numerous
3314. Components. Air steering control consists
revolutions of the steering wheel to turn the vehicle
wheels; therefore, some form of power steering to aid
primarily of three major units: a combination of levers
the driver In steering the heavier vehicles is required. Air
mounted on the steering gear pitman arm shaft; two
steering Is a desirable method of power steering,
control valves; and an air cylinder containing a double-
because
the
heavier
vehicles
on
which
it
acting
piston
TA233846
33-13
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