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thrown radially off the rotating tires. Each fender shall
structurally support a weight of 300 pounds without evidence of
damage.
3.17 Steering and steering control The steering method shall be
.
the hinged-frame (articulated) type. The steering shall be
accomplished by fluid power actuators. The steering system shall
permit control of the forklift while traveling at any speed up to the
maximum specified travel speed (see 3.9.4). The fluid power steering
actuating device shall be located so as to absorb all road shock
without transmitting the shock effect to the steering wheel. A
steering frame lock shall be included and it shall conform to SAE
J276 except it shall be painted in accordance with 3.33. The forklift
shall operate without loss of operator control when tested as
specified in 4.6.2.12.
3.17.1 Steering control. The steering system shall be controlled
by a single steering wheel. The effort required to turn the steering
wheel shall not exceed 10 pounds pull at the rim. The steering wheel
shall require not more than 5-1/2 turns to move the wheel from one
stop to the opposite stop. The steering wheel shall require not more
than 8 seconds for the maximum range of movement at low idle engine
speed and shall require not less than 4 seconds at governed engine
speed. There shall be a minimum of 7 inches clearance measured
vertically between the lowest point on the steering wheel rim and a
line parallel to the floor and passing through the highest point of
the unoccupied seat cushion. There shall be a minimum of 3 inches
between the rim of the steering wheel and the directional control
lever(s) for all positions of the lever(s). The steering wheel shall
be capable of withstanding a minimum 300 pound force applied
perpendicular to the plane of the steering wheel, a minimum 150 pound
force applied tangentially to the rim of the steering wheel, without
permanent deformation or damage and not more than 50 pounds turning
force shall be required in the event of power assist failure.
3.17.2 Emergency steering. Emergency steering conforming to SAE
J53 shall be provided for retaining steering control in the event of
engine failure or steering power source failure when traveling at any
speed to the maximum speed.
3.18 Brake system. Service and parking brakes shall be provided
and shall be independently actuated systems. If a separate hydraulic
system for the brakes is utilized, the brake system shall be filled
with a fluid that is listed on the qualified product list of MIL-B-
46176. If air brakes are provided, air brake service and emergency
line coupling conforming to SAE J318 shall be provided on the rear of
the vehicle.
3.18.1 Service braking system. Foot controlled service brakes
shall be provided for all wheels. The brakes shall be capable of
bringing the forklift, with rated load on the forks, to a complete
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