Failure Phenomenon Of Four-post Cutting Machine

- Apr 24, 2020-

1. The indicator light is off: the whole machine has no power


2. Transformer fuse burnout: replace fuse


3. The brake switch is not turned on: turn on the power brake switch


4. The indicator light does not turn on to start the motor: the indicator bulb is burnt out, replace the indicator bulb


5. The light is on and the motor cannot be started


(1). Motor protection switch trip: Turn on the motor protection switch


(2). Defective or burned main control contactor: Replace the contactor


(3). Motor burned out: Replace the motor


6. The indicator light is on. The motor can be started but not working.


(1). Set the die setting switch to the horizontal position to lock the oil path: Set the die setting switch to the straight direction


(2). Motor rotation error: Connect two phases of the motor to each other.


(3). The contact of the work switch is bad.


(4). Solenoid valve coil burned out: Replace the coil or the entire solenoid valve


(5). The solenoid valve core is stuck: cleaning the valve core


(6). Stroke adjustment handle is loose: reset the die


7. Can't work and can be reset: the circuit board in the electrical box is burnt and replaced.


8. Can work but can't reset: the circuit board in the electrical box is burnt and replaced


9. Insufficient work pressure


(1). Cutting material layer is too thick: reduce material layer


(2). The die setting stroke is adjusted too low: to the proper position


(3). Filter clogged: clean or replace the filter


(4). Oil pump damaged: Replace oil pump


10. Oil leakage


(1). Oil cylinder oil seal aging: Replace oil seal


(2). The high-pressure oil pipe joint is loose: tighten the joint


11. Noise from motor oil pump


(1). Wear of rubber particles during oil pump rotation: Replace rubber particles


(2). Filter is clogged: clean the filter


(3). Hydraulic oil loss: add enough hydraulic oil


(4). Oil pump bearing is damaged: replace the bearing


(5) Aging of the oil seal on the shaft end of the oil pump: Replace the oil seal


(6). Motor bearing is damaged: replace the bearing


12. The crash can not rise or fall after the speed slows down or rises


(1). Cylinder seal aging: Replace the seal


(2). Worn solenoid valve spool: Replace solenoid valve


(3). Reduced pressure oil viscosity: replace pressure oil


(4). Poor board contact: check wiring


(5). The main road cannot be switched: check the line


(6). The solenoid valve is stuck: clear the valve body