问题1：换向阀不可以换向或换向动作迟缓原因：润化欠佳弹黄被卡死或毁坏油

Question 1: reversing or not reversing valve commutation lumbering <br>reasons: <br>Moist poor <br>spring is stuck or damaged <br>oil or debris stuck <br>measures: <br>a manual inspection before the power supply circuit fault, first directional control valve buttons Double flip. Then, look at standard pressure ratings valve is not capable of normal commutation. If everything is normal, the power supply circuit is faulty. <br>Such inspection magnet coil voltage measurements by the instrument panel. I do not see is the rated current. If the operating voltage is too low, the user should further check the control circuit and the switching power supply switching circuitry itinerary associated contact.

Question 1: The change-over valve cannot change or change-over is slow<br>Reason:<br>Poor moisturizing<br>Impeachment is stuck or destroyed.<br>Oil stains or residue stuck<br>Measures:<br>Before checking for a power circuit failure, flip the manual button of the change valve twice. Then, see if the changevalve can change normally at the standard pressure of the rating. If everything works, there is a problem with the power circuit.<br>During inspection, the working voltage of the magnet coil is measured with the instrument panel. See if you've achieved the rated current. If the operating voltage is too low, the user should further examine the switching power supply in the control circuit and the travel arrangement switch circuit associated with the contact.

Problem 1: the reversing valve cannot be reversed or the reversing action is slow<br>Reason:<br>Moisturizing is not good.<br>Bullet yellow stuck or destroyed<br>Oil or residue stuck<br>Measures:<br>Before checking the power circuit fault, please turn the manual button of the reversing valve twice. Then, see whether the reversing valve can normally reverse under the rated standard air pressure. If everything is OK, the power circuit is faulty.<br>During inspection, use the instrument panel to measure the working voltage of the magnet coil. See if the rated current is achieved. If the working voltage is too low, the user shall further check the switching power supply in the control circuit and the associated trip arrangement switching circuit.