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Hydraulic motor use precautions

Hydraulic motor use precautions

Hydraulic motor use precautions

  1. When the inertia of the driven part is large, if it is required to reach the braking or the reverse or the smooth in a short time, the safety valve buffer should be set in the returning oil circuit to prevent the sudden hydraulic shock and cause the damage accident.      
  2. When using the fixed motor, if you want to start and stop smoothly, you should use the necessary pressure control or flow control method in the circuit design.      
  3. When the hydraulic motor is used as a lifting tool or a power unit of the traveling device, a speed limiting valve must be provided to prevent the heavy object from falling rapidly or the overspeed of the traveling mechanism such as the vehicle when the vehicle is going downhill, causing a serious accident. 
  4. Since there is always leakage of the hydraulic motor, the intake and outlet of the hydraulic motor are closed for braking, and it will still have a slow slip. When braking for a long time, a brake to prevent rotation should be separately provided.
  5. When the full load start is required, the hydraulic motor starting torque value should be noted, because the hydraulic motor starting torque is smaller than the rated torque, and if it is ignored, the working mechanism will not operate.
  6. Since the back pressure (outlet pressure) of the hydraulic motor is higher than the atmospheric pressure, the drain pipe of the motor must be separately led back to the fuel tank and cannot be connected to the hydraulic motor return line.
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