1.Regular maintenance

Operators are responsible for daily maintenance, after each shift, a basic maintenance should be done everyday, and an overall maintenance should be done in every week. The main contents include: carefully check the use and operation of equipment, fill in the shift records, clean all parts of the equipment, regularly lubricate and tighten loose parts at any time. Adjust the equipment to eliminate all defects, check whether equipment parts are in full, whether workpieces, accessories are placed neatly.

2.First level service

First level service maintenance refers to the maintenance conducted mainly by operators, and guided by professional workers. This maintenance is suitable for a machine that has operated for one month( Two shifts ).

Its main contents include:

●Inspection, cleaning, adjusting electrical control parts.

●Thoroughly clean, wipe off the outside of the equipment and check the inside of the equipment.

●Check and adjust the parts of each operation and tranission mechani.

●Check the oil pump, dredge the oil circuit, check the oil quality and quantity of the oil tank.

●Clean or replace the oil-stained felt, oil line, remove the burr of each active surface.

●Check and adjust all indicating instruments and safety protection devices.

●Any machine fault and problems should be removed and leakage should be eliminated as well.

The equipment should be achieved the following standards after first level maintenance:

●A Clean and bright appearance

●The oil circuit is clear and the oil window is bright

●Flexible operation and normal operation

●Safety protection and indicator should be in full and correction.

Maintenance personnel should keep records on maintenance content, machine fault and hidden problems, test run results, trial production precision, running performance, etc.

3.Second level service

Second level service is to maintain the technical condition of the equipment, mainly conducted by professional maintenance personnel, and operators assisted.

It is mainly aimed at repairing or replacing the wear and tear parts of equipment. At the same time, the second level service should complete all the requirements of the first level maintenance, lubrication parts are required to clean, combined with the oil cycle to check the quality of lubricating oil, clean and change oil. Check the equipment's dynamic technical status and main accuracy (noise, vibration, temperature rise, oil pressure, ripple, surface roughness, etc.), adjust installation level, repair parts that its adjustment accuracy has deteriorated, calibration machine instrumentation, repair safety devices, cleaning and replacement of motor bearings etc.

After second level maintenance, the required accuracy and performance can meet the process requirements, no oil leakage, no water leakage, no air leakage, and no electricity leakage. Sound, vibration, pressure, temperature rise are up to standard. Dynamic and static technical condition should be checked before and after the second level maintenance, , and carefully do maintenance records.