Common fault descriptions and causes of metal circular saw machines are as follows:
1. The metal circular saw machine motor does not start and makes a buzzing sound.
Reason: The power supply is missing phase, emergency shutdown and inspection.
2. The metal circular saw machine motor can only operate in single phase.
Reason: The pole change switch is broken; one of the six wires from the motor is damaged.
3. Metal circular saw machine coolant does not spray out
Reasons: There is 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 opened.
4. The motor of the metal circular saw machine can run, but it is noisy and lacks horsepower.
Reasons: The power supply is missing a phase; the voltage is inaccurate and should be within the range of ±5% of the standard voltage; the gear oil is inaccurate, causing damage to the oil seal or causing oil to enter the motor and damage the insulation and become necrotic.
5. The metal circular saw machine makes abnormal noises when cutting.
Reasons: The saw teeth are not sharp or broken; the workpiece is not clamped; there are chips attached to the teeth and the machine should be shut down to remove them.
6. The metal circular saw blade is damaged or has broken teeth.
Reasons: The knife cover is not locked; the saw blade is not pulled back enough 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 large, which will tear the saw blade or damage the workpiece. The cutting rotation must be re-grinded before use; the tooth shape of the saw blade is incorrect; the number of teeth of the saw blade is incorrect; the feed is too large, too much bite is overloaded; the workpiece is too sharp and too thin when starting to cut; the saw blade rotates too fast /The material is too hard.
Note: The metal circular saw machine should be shut down for two hours every day to avoid long-term non-stop use, which will reduce the performance and life of the equipment!
