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● Video of unloading and adding oil into gearbox reducer

Ans:

The lubricant oil of gearbox reducer has to be replaced once every year or every 2500 working hours.

The videos for unloading and adding oil:
CNC-300A1 Gearbox reducer Unloading oil: 
https://www.dropbox.com/s/3uo2xysays84swq/How%20to%20unloading%20oil%20into%20gearbox%20reducer.wmv?dl=0
CNC-300A1 Gearbox reducer Adding oil: 
https://www.dropbox.com/s/sn53wkteoz24mp9/How%20to%20adding%20oil%20into%20gearbox%20reducer.wmv?dl=0