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Figure 3-1 Steering operation device
3.1.1 Steering wheel and its function
The steering wheel is the most direct component for the driver to control the driving
direction of forklift truck. During the normal driving process of forklift truck, the driver turns
the steering wheel to the left or right, so that the forklift truck can drive to the left or right. In
order to meet ergonomics, the forklift truck is designed to turn left when turning the steering
wheel to the left and right when turning the steering wheel to the right. The turning radius of
forklift truck varies according to the turning angle of steering wheel. During the driving of
forklift truck, the driver should hold the steering wheel with both hands.
In order to facilitate the rapid steering of the driver, there is a handle ball on the steering
wheel of the forklift truck. The driver can turn the steering wheel quickly by holding the
handle ball in one hand. The driver can also grasp the handle ball in one hand and control the
multi-way valve in one hand to realize the joint operation. However, special attention should
be paid to the above two kinds of manipulation: when a driver makes a quick turn with only
one hand holding the steering wheel handle ball, he should fully consider the safety of the
operation at this time. He should not steer suddenly when driving in a fast straight line, or
when loaded. The other hand must grasp the handles, handrails or other joysticks of the car to
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