Maintenance and Repair of Gearboxes

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The gearbox is an important part of the pipe extrusion machine. The following are the precautions for the maintenance and repair about the gearbox:


1.After the machine has been used for a period of time, a comprehensive inspection should be performed to check the tightness of all screws. 


2. In case of interruption of production, the main drive and heating stop, and when the power supply is restored, each section of the barrel must be reheated to the specified temperature and kept for a period of time before the extruder can be started. 


3. After the extruder has been used for half a year, there will be iron filings or other impurities in the gear box in the gear box. Therefore, the gear box should be cleaned and the gear box lubricating oil should be replaced. 


4 If the steering fullness of the instrument and pointer is found, check whether the contact between the thermocouple and other side lines is good. 


5. No impurities are allowed in the material. Hard objects such as metal and sand are strictly prohibited from entering the hopper and extruder. 


6. When opening the cylinder cover or air extraction cover, be careful to prevent foreign objects from falling into the host. 


7. There should be enough warm-up and heating time, and the manual cranking should be brisk before driving. Generally, the temperature should be kept constant for 0.5 hours after reaching the process set temperature. 


8. The screw is only allowed to start at low speed, and the idling time does not exceed 3 minutes. 

9. After the new machine is running in, all gear boxes should be replaced with new oil, and then the lubricating oil should be replaced after 3000 hours of operation. After that, the quality of the gear box should be checked during the necessary maintenance, and replaced if necessary. 


10. Check the wear of barrel and screw, gearbox, bearing and oil seal annually. 


11. In daily production, the heating cylinder and the surface of the machine should be cleaned.


Jiangsu Xinrongplas Machinery Co.,Ltd focus on manufacturing various plastic pipe extrusion machine such as PPR pipe extrusion machine, PVC pipe extrusion machine, PE pipe extrusion machine etc, welcome to consult. 


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