Failure phenomenon of four column hydraulic press die cutting machine:
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 is off 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. Light is on Can start the motor but not work
(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 spool is stuck: cleaning the spool
(6). The stroke adjustment handle is loose: reset the die
7. Can not be reset after work: the circuit board in the electrical box is burnt and replaced
8. Can work but cannot 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 screen is 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). 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 clogged: clean the filter
(3). Loss of hydraulic oil: add enough hydraulic oil
(4). Oil pump bearing is damaged: replace the bearing
(5). Aging of oil pump shaft end oil seal: replace oil seal
(6). Motor bearing is damaged: replace the bearing
12. The crash cannot rise or fall after the speed slows down or rises
(1). Cylinder seal aging: Replace the seal
(2). Worn solenoid valve core: 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