The heating shaft sleeve of crankshaft bearing is not scraped well, and the lubrication is not good. Scrape the copper tile again and check the lubrication.
There are copper chips in the oil flowing out of the bearing, and the lubricating oil is not clean.
Check the lubrication condition and disassemble the bearing for cleaning.
Guide rail burning guide rail clearance is too small, poor lubrication, poor contact.
Re-grind and scrape the guide rail, adjust the gap and pay attention to lubrication.
During operation, the clutch is not engaged or cannot be disengaged after engagement. The spring for rotary health care loses its elastic key and is too tightly matched. Replace the spring and grind the joint clearance of the key.
When the clutch is disengaged, the slider can't stop at the top dead center. The brake band is not pulled enough, the brake band is excessively worn, and there is oil slipping on the brake wheel. Adjust the tension of the brake spring, replace the brake, and clean the brake band and the wheel circumference with kerosene.
The stripper plate does not work, and the striking position is wrong. Adjust the meeting position and try to retreat by turning the flywheel by hand.
Rotating locking device when connecting rod screw rotates or impact locking device loosens.
Press the button (on) to check the circuit system to eliminate the fault if the power supply is disconnected and the thermal breaker is cut off.