Q1. What is the reason for abnormal spindle noise (loud)/poor grinding?

Aging of coupling star shaped rubber (there is a knocking sound when the main shaft starts): Please replace the coupling star shaped rubber

Worn or damaged spindle bearings: please replace with new bearings

Q2. How to deal with excessive vibration on the left and right sides of the workbench?

Adjust the foundation screws to correct the machine level

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)

Q3. Why does the workbench move slower left and right?

Insufficient lubricating oil level on the workbench track: Adjust the oil outlet of the oil distributor. The oil distributor is located on the saddle directly below the grinding wheel head, lock it clockwise, and then turn it counterclockwise for 1/2 turn (to confirm if there is oil outlet on the workbench track)

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 20kg/cm ^ 2

Q4. How to check if the grinder has oil leakage?

First confirm the location of the machine oil leakage and check if the lubricating oil tank is full

Check for oil leakage in the hydraulic cylinder. If so, replace the oil seal of the hydraulic cylinder

Q5. Why is the workpiece uneven, sparks uneven, and feed unstable?

Interference of U-shaped hanging plate (blocked by too much dust): The anti-splash curtain expansion cover (U-shaped hanging plate) of the grinding machine needs to be regularly cleaned of accumulated dust to avoid affecting the normal feeding of the grinding wheel head due to excessive dust accumulation or tilting of the grinding wheel head due to feeding compression, which can cause uneven grinding of the workpiece, uneven sparks, and unstable feeding

Q6. Why is the feed of the grinding machine unstable?

AHD type machine:

A. The oil pressure throttle valve has not been adjusted properly (please contact relevant business personnel to provide a video of the oil pressure throttle valve adjustment)

B. YSG-1224~1632AHD automatic feed ratchet worn or damaged, please replace with a new feed ratchet

TS series machines:

Interference of U-shaped hanging plate (blocked by too much dust): The anti splash curtain expansion cover (U-shaped hanging plate) of the grinding machine needs to be regularly cleaned of accumulated dust to avoid affecting the normal feeding of the grinding wheel head due to excessive dust accumulation or causing the grinding wheel head to tilt due to feeding compression, which can cause uneven grinding of the workpiece, uneven sparks, and unstable feeding

Q7. Why is there a sound when the workbench moves left and right?

When the workbench moves left and right, there is a sound because the nuts at both ends of the hydraulic cylinder on the workbench are loose. Please adjust the fixing nuts on the left and right sides, tighten the nuts appropriately, and test by hand whether the hydraulic cylinder spindle can be pulled. The tightness of the locking nuts should be based on the principle of being able to be manually pulled

Q8. Why do cutting trembles appear after grinding the workpiece?

The reasons for the occurrence of shaking marks during workpiece grinding are as follows:

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

Q9. Why is there no action for front and rear automatic/fast feed?

The main reason why there is no action for the front and rear automatic/fast feed is because the transmission belt is broken. Replace the belt with a new one

Q10. Why does the bottom bed leak oil?

Remove the side cover of the bottom bed, check if there is oil leakage from the oil pressure speed valve, and replace the oil seal of the speed valve

Remove the side cover of the bottom bed, check if there is oil leakage due to aging of the oil pipe, and replace it with a new oil pipe

Q11. Why is there oil leakage on the side cover of the grinding machine?

Excessive supply of lubricating oil on the left and right sides of the workbench: Adjust the oil supply of the oil distributor by first locking it clockwise and then turning it counterclockwise to reverse by 1/2 turn. This is the most suitable oil supply quantity

(The oil distributor is located on the saddle directly below the grinding wheel head)

Check for oil leakage in the hydraulic cylinder. If so, replace the oil seal of the hydraulic cylinder

Q12. Why did the left and right movement of the workbench not stop or return according to the set action?

The proximity switch that controls the extreme movement of the workbench on both sides is faulty: please replace the left and right proximity switches

The solenoid valve of the oil pressure tank is faulty: please replace the solenoid valve

Q13. Why does the automatic function of forward and backward movement fail to stop or fail to move?

The proximity switch for controlling front and rear extreme motion is faulty: please replace the front and rear proximity switches

The solid-state relay of the electrical box is faulty: please replace the relay

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

Q15. Why can't the left and right oil pressure of the workbench start?

The left and right hand cranks of the workbench are locked: release the safety bolt located on the left side of the left and right hand cranks

Electromagnetic disk has no magnetic attraction: confirm that the magnetic attraction switch on the control panel is already in the magnetic attraction position

The solenoid valve switch of the electrical box trips: Press the blue button at the bottom left of the solenoid valve switch to open and reset

Q16. Why does the spindle motor fail to start?

The solenoid valve switch of the electrical box trips: Press the blue button at the bottom left of the solenoid valve switch to open and reset

Q17. Why did the grinding machine start when the workbench stopped? Why did the workbench not move?

Due to the setting of the safety mechanism, after the workbench stops, the workbench start switch on the control panel must be pressed to operate normally