Fault phenomenon | Cause of fault | Exclusion method |
Spindle heating | The preload of main shaft bearing is too large | Adjust the preload |
Bearing is abraded or damaged | Replace bearing |
Dirty lubricating oil or impurities | Clean the headstock and replace it with new oil |
Spindle stalls during hard cutting | Motor The belt connected to the main shaft is too loose | Move the motor base, tension the belt, and then lock the motor base again |
There is oil on the belt surface | Clean it with gasoline and then install it |
The friction clutch is too loose or worn | Adjust the friction clutch, grind or replace the friction plate |
The belt is invalid after being used for a long time | Renewed belt |
No lubrication oil circulation or insufficient lubrication of main shaft | The oil pump reverses or the clearance is too large | Change the steering direction of the oil pump or repair the oil pump |
The oil suction pipe is not inserted below the oil level of the oil tank | Insert the oil suction pipe 2/3 below the oil level |
Oil pipe or oil filter blocked | Remove the blockage |
Insufficient lubricating oil pressure | Adjust the oil supply force |
The headstock is noisy | Poor dynamic balance of main shaft components | Re balance |
Uneven or severely damaged gear mesh clearance | Adjust the clearance or replace the gear |
The bearing is damaged or the transmission shaft is bent | Repair or replace the bearing and straighten the transmission shaft |
The length of the drive belt is inconsistent or too loose | Adjust or replace the drive belt. Do not reuse the old one |
Poor gear accuracy | Replace the gear |
Poor lubrication | Adjust the lubricating oil volume to keep the headstock clean |
The belt connecting the spindle and the motor is too tight | Move the motor base, and the belt tightness is suitable |
