Q1. How to deal with the difficulty in moving the worktable left, right, front, back, and columns up and down of the grinding machine?
This is caused by insufficient lubrication oil for the screw and rail. Please make adjustments according to the following methods:
1. Check the oil level of the oil level mirror. If the oil level is too low, please replenish the oil (Mobil # 1405)
2. Clean the lubricating oil tank and replace it with new oil (Mobil # 1405). If too much dust settles in the oil tank, it is easy for the dust to get stuck with the lubricating oil on the rail and screw, causing unsmooth movement
3. Rotate the oil distributor counterclockwise according to the instructions on the oil tank cover to increase the oil volume
Q2. How to replace a broken workbench cable?
Please replace the workbench cable (please contact relevant business personnel to provide a teaching video on cable replacement) or ask Youlong sales service personnel to go and replace it
Q3. What is the reason for excessive machine vibration?
The dynamic balance of the grinding wheel is not properly adjusted: please contact the relevant business personnel to provide relevant documents
Unbalanced machine level: Please readjust the machine level (once the machine is moved, it can easily cause the machine to lose balance)
Q4. Why do cutting shakes appear after grinding the workpiece?
Excessive vibration of the grinding wheel head: it is necessary to readjust the dynamic balance of the grinding wheel (please contact relevant business personnel to provide relevant documents)
Diamond knife passivation on the grinding wheel trimmer: Please replace the diamond knife on the grinding wheel trimmer
Damaged grinding wheel flange: The surface of the grinding wheel flange may be damaged and unable to fit the spindle, causing the grinding wheel to rotate and shake. Please replace the grinding wheel flange
Q5. How to check if the grinder has oil leakage?
Machine out of level: Recalibrate the machine level (once the machine is positioned, it can easily cause the machine to lose balance)
Lubricating oil pipe aging, fracture or detachment: need to replace with a new lubricating oil pipe
Excessive supply of lubricating oil: Open the dust-proof pad in the oil groove behind the column, lock the oil distributor position 3 first, and then retreat by 1/2 turn. This is the most suitable oil supply quantity
Q6. Why does the blade fall off during grinding (the grinding wheel head suddenly drops significantly)?
Symptoms of sudden drop of grinding wheel head during machining and grinding
Sparks increase as they grind
Unstable feeding (there is a significant difference between the manual feeding value and the displayed value of the optical ruler)
Uneven grinding of workpiece
Must be checked
a. Oil level mirror oil level. If the oil level is too low, please replenish the oil
b. Clean the lubricating oil tank and replace it with new oil (Mobil # 1405). If too much dust settles in the oil tank, it is easy for the dust to get stuck with the lubricating oil on the rail and screw, causing unsmooth movement
c. Check if there is lubricating oil on the column screw and if the track is rusted
Q7. Why does the lubricating oil tank overflow?
It must be confirmed first that the oil cylinder is leaking oil or that the oil groove is mixed with cutting water
Confirm whether the bottom of the oil tank is oil or water
If it is oil: replace the oil seal of the hydraulic cylinder
If it is water: the customer has a problem using it, they must pay attention to whether the cutting water spray direction will spray into the oil tank and replace it with new oil
Q8. Why is the front end of the bottom bed leaking oil?
Due to aging of the oil pressure speed valve or oil pipe, open the bottom bed side cover, check the location of the oil leakage, and replace the speed valve oil seal or oil pipe with a new one
Q9. What is the reason for the large vibration caused by the left and right movement of the workbench?
Machine level imbalance: machine level adjustment (one tap on the base)
The oil pressure throttle valve is not adjusted properly: adjust the oil pressure throttle valve to supply an appropriate amount of oil to the workbench (please contact relevant business personnel to provide a video of the throttle valve adjustment)
Q10. Why does the workbench move slower left and right?
Insufficient oil level in the oil pressure tank: Check the oil level of the oil pressure tank. If the oil level is too low, please replenish the oil
Check if there is oil on the workbench: observe if there is oil output from the workbench slide. If there is no oil, adjust the oil output of the oil distributor
The pressure on the fuel tank pressure gauge is insufficient or the set value has changed: adjust the pressure setting of the fuel tank pressure gauge to 18kg/cm ^ 2
Q11. Why is the machine power light not on?
The fuse inside the electrical box is burnt out:
Please replace the 2A (Ampere) fuse for the manual machine
Please replace the 4A (Ampere) fuse for the hydraulic machine
The lubricating oil pump is burnt out: please replace it with a new one
Q12. Why is the spindle motor unable to rotate?
Electromagnetic contactor (electromagnetic switch) overload tripping: Press the blue button at the bottom left of the contactor to open and reset
Spindle motor burnout: If the electromagnetic contactor (electromagnetic switch) does not work after resetting, it may be due to motor burnout. Replace the motor
Q13. Why can't the vacuum and water injection motors rotate?
Electromagnetic contactor (electromagnetic switch) overload tripping: Press the blue button at the bottom left of the contactor to open and reset
Dust suction and water injection motor burnout: If the electromagnetic contactor (electromagnetic switch) does not work after resetting, it may be due to motor burnout. Replace the motor
Q14. Why does the power light of the oil pressure tank not light up?
The position of the speed valve on the workbench of the grinding machine is incorrect: turn the speed valve back to the "OFF" correct position
The fuse is burnt out: please replace it with a new one