| 摘要 |
The load suspension system for damping excessive vibration or impact received from the front body, has an accumulator for stabilizing the minute pressure variation of the arm cylinder. The system having an arm cylinder (5) operated by a hydraulic valve (4), comprises a solenoid valves (6)(6') positioned between the cylinder (5) and the valve (4), connected with an accumulator (7); a power switch (9) and a speed regulating switch (8) for operating the solenoid valves. The speed regulating switch is shorted by the speed signal of the timer if the speed value is below the set speed.
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