100T3200 CNC bending machine common faults and solutions (1) : reversing valve can not reversing or reversing action is slow, generally due to poor lubrication, spring is stuck or damaged, oil or impurities stuck sliding part and other reasons. In this regard, we should first check whether the oil mist works normally; Is the viscosity of the lubricating oil appropriate? If necessary, replace the lubricating oil, clean the sliding part of the reversing valve, or replace the spring and reversing valve.
Common faults and solutions of 100T3200 CNC bending machine (2) : reversing valve after a long time of use is easy to appear spool sealing ring wear, stem and seat damage phenomenon, resulting in leakage in the valve, valve action is slow or can not normal reversing and other faults. At this point, replace the sealing ring, stem and seat, or replace the reversing valve.
Common faults and solutions of CNC bending machine (3) : if the inlet and exhaust holes of the electromagnetic pilot valve are blocked by debris such as mud, the sealing is not strict, the active core is stuck, the circuit has faults, etc., can lead to the normal reversing valve. In the first three cases, sludge and impurities on the pilot valve and movable iron core should be cleaned. Circuit faults are generally divided into control circuit faults and electromagnetic coil faults. Before checking the circuit fault, the manual knob of the reversing valve should be turned several times to see whether the reversing valve can be normal under the rated air pressure. If it can be normal, the circuit is faulty. When checking, the voltage of the electromagnetic coil can be measured by instrument to see if it reaches the rated voltage. If the voltage is too low, the power supply in the control circuit and the associated travel switch circuit should be further checked. If the reversing valve can not be reversed normally under the rated voltage, check whether the joint (plug) of the electromagnetic coil is loose or contact is false. The method is to unplug the plug and measure the resistance value of the coil. If the resistance value is too large or too small, the electromagnetic coil has been damaged and should be replaced.
