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4.2.2 Steering cylinder (Fig.4-4)
The steering cylinder is the double-acting piston type. There are oil inlets respectively located at both ends of
the piston rod. The pressure oil from the full hydraulic steering gear makes the piston rod move around through
the oil cylinder and thereby to achieve the turning to the left and right.
Fig.4-4 Steering cylinder
4.2.3 Steering axle (Fig.4-5)
The steering axle is composed of the steering axle, steering axle housing, oil cylinder, rack drive and steering
wheel assembly etc. Move around by the oil cylinder piston rod engaged with the gear through the gear rack,
making the steering wheel turn to achieve the cornering. The steering axle is bolted on the tail bracket behind
the frame.
After the maintenance or replacement of hydraulic parts of steering system, you should carefully check whether
the pipeline is correctly connected, the L/R rotation of steering wheel is normal and the air in the system is
exhausted to avoid accident. During the exhaust, the motor should be activated slightly. When turning the
steering wheel by hand (turn off the power supply at once if there is abnormal phenomenon and find out the
causes for troubleshooting), it should feel easy and flexible, and the steering wheels should deflect accordingly.
Keep rotating around so forth to exhaust the air from the system.
The steering of forklift is activated by the accelerator switch control. Only when the accelerator switch is in
Open state, the motor starts working, the steering acts. In case no driving is carried out, the time for one steering
last about 5~8s, and then the motor will stop running. If continue to make the steering, it is necessary to trigger
once the accelerator switch.
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General