1) Check, clean and change the oil pump, oil filter and lubrication line.
2) Inspect, fill and tighten the bolts of each part of the mill.
3) Check the large and small transmission gears of the mill, record the wear condition, and replace and repair the worn pinion.
4) Check the coupling and replace the elastic spring pad or other type of parts.
5) Check and repair the feed pipe and the discharge pipe.
6) Check and tighten the feeder and replace the co-feeder tip.
7) Check the bearing bush and oil ring and brush of the motor.
The medium repair period is generally 4-6 months. The main contents of the maintenance project are as follows:
1) Includes minor repairs.
2) Check and replace the feed pipe, discharge pipe and feeder.
3) Repair the transmission gears.
4) Replace the heavily worn liner and grid plate.
The overhaul period is generally set at 2-4 years. The maintenance items mainly include the following points:
1) Projects including medium and small repairs.
2) Replace the main bearing and the large gear.
3) Inspect, repair or replace the cylinder.
4) Repair or replace the inlet and outlet end caps of the mill.
5) Repair, re-align and perform secondary grouting on the foundation.
The content of the above requirements for large, medium and small repairs is only a basic requirement. The actual maintenance content in production is sometimes different from the above requirements, which is normal.
The large, medium and small repair time and contents of the mill should be formulated according to the specific conditions and production tasks of the plant. According to the content of the scheduled maintenance plan. After the inspection, equipment records must be made to establish maintenance files.
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