Fault Description and Cause Analysis of Metal Circular Saw
Common faults and causes of metal circular saw machines are as follows:1. The metal circular saw motor does not rotate and there is a buzzing sound
Cause: Power supply is out of phase, emergency shutdown inspection.
2. The metal circular saw motor can only operate in single phase
3. The cooling liquid of the metal circular saw does not spray out
Case: Insufficient coolant in the water tank; The cooling pump motor is not powered on; The cooling pump motor is damaged; The valve on the water pipe is not open.
4. The metal circular saw motor can operate, but there is noise and insufficient horsepower
Cause: power supply lack of phase; The voltage is inaccurate and should be within ± 5% of the standard voltage; Incorrect gear oil may damage the oil seal or cause oil to enter the motor, damage the insulation, and become necrotic.
5. There is abnormal sound when the metal circular saw is sawing
Cause: The teeth are not sharp or broken; The workpiece is not clamped; Cutting debris adhered to the teeth should be removed by shutting down the machine.
6. Broken or broken teeth of metal circular saw blade
Cause: The knife cover is not locked tightly; The saw blade is not fully pulled back before locking, and the saw blade is not close to the knife cover, causing pulling during sawing; The saw blade is too blunt and the cutting load is too high, which can tear the saw blade or cause the workpiece to rotate during cutting. Be sure to regrind and reuse it; The tooth shape of the saw blade is incorrect; Improper number of saw blade teeth; Too much feed, too many bites, overload; When starting sawing, the workpiece is too sharp and too thin; The saw blade rotates too fast/the material is too hard.
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