How to maintain the vacuum pump of CNC cutting machine

1. In order to avoid impeller, pump body wear or impeller jamming, dust particles entering the pump cavity with gas and working liquid should be washed away through the flushing port at the bottom of the pump cover.

2. If hard water is used as the working fluid, the hard water must be softened, or the vacuum pump should be flushed with solvent regularly.

3 Lubrication: Under normal working conditions, when using a 50Hz motor: After 20,000 hours of operation or a maximum of three years, the waste grease and its swag in the bearing and accessory space should be removed and filled with new grease. The injected grease should account for 50% of the bearing free space and 65% of the bearing cap spacing. If the working conditions are very bad, the replacement cycle of the grease will be shortened accordingly.

4. When the exhaust is emptied, open the water outlet of the water tank to allow the liquid to flow out.And turn the vacuum pump by turning the fan by hand until no liquid comes out. Tilt the pump 45 degrees to basically empty the vacuum pump. This prevents damage to the vacuum pump even if it is out of service for a long time or in cold climates.

5. Treatment method of pump stop for a long time: If the vacuum pump stops running for about 4 weeks, the pump should be completely emptied according to item 3 in advance, and then carry out anti-corrosion treatment, that is, use 1/2 liter of anti-corrosion oil from the suction port or exhaust port. The air port is poured into the vacuum pump, and then it is operated for a short time. If the impeller is stuck due to the use of hard water and the pump is stopped for a long time, the pump cavity should be filled with 10% oxalic acid for about 30 minutes.

6.If the negative pressure value of the vacuum pump of the feeding machine is not enough, please check: a. Whether the ball valve is open; b. Whether the pipeline between the water tank and the pump body is blocked by scale

7.Maintenance and maintenance of the vacuum cleaner:

Clean the dust frequently, pay attention to the refueling and maintenance of the rotating position.