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Fault Description	Reason	Solution
Card knife	The knife cylinder has no oil and no pressure.	Refueling, adjust the cutting amount
No movement of handwheel	Handwheel joint loose knife	Adjusting the handwheel fitting
The knife sleeve is not vertical	Knife sleeve wheel cracked	Replace knife sleeve
Low battery voltage, large magazine jitter	The cam of the tool magazine is broken, and the sealing ring of the four-axis rear seat often falls off.	Replace the battery, cam
Oil cooler leaks	Oil leakage from oil pipe	Replace oil pipe
No power on panel	IO Fuse Bad	Replace IO fuse
Automatic knife drop	Short circuit due to water ingress into the loose knife button	Clean and replace the loose knife button.
Four-axis battery dead	Encoder line fault	Replace four-axis encoder line
Card knife positioning is not accurate	Spindle motor pulley ring	Dismantling the spindle motor and debugging the pulley
Spindle leakage	Loose knife tight knife solenoid valve broken	Replace the loose knife and tighten the solenoid valve and debug it.
The knife cannot be loosened manually.	Loose knife wire broken	Replace loose knife wire
Lost magazine count	Cutterhead motor contactor broken	Replace contactor