Troubleshooting Method Of Four-post Cutting Machine

- Nov 11, 2020-

1. The indicator light is off, whether the cutting machine is not powered on


2. The indicator light is off but the motor can be started, replace the indicator light


3. The transformer fuse is burned out, replace the fuse


4. The brake switch is not turned on, turn on the brake switch


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


a. The protection switch is tripped, open the protection switch


b. The contactor is in poor contact or burned, replace the contactor


c. Motor burned out: replace the motor


6. The indicator light is on, the motor can be started but cannot work


a. Turn the knife mold setting switch to the horizontal position to lock the oil circuit


b. Motor reverse


c. Poor contact of the operating switch


d. The solenoid valve coil is burned out, change the coil


e. Solenoid valve spool card master, clean the spool


F. The adjustment stroke handle is loose and needs to be reset


7. It can be reset if it fails to work, the circuit board in the electric box may be burnt


8. Insufficient pressure of cutting machine


a. Thicker material layers, reduce thickness


b. Set the position of the travel switch to be too low, adjust the switch height


c. The filter is blocked, clean or replace


d. The oil pump is broken, replace the oil pump


e. Hydraulic oil time is too long, replace hydraulic oil


9. Oil leakage


a. The oil cylinder sealing ring is aging to replace the sealing ring


b. The high pressure oil pipe joint is loose and tighten the joint