Machinery maintenance

Air and water pressure control valve in #3 working chair was disassembled and maintained to correct inconvenient dysfunction since a few days ago, that was caused by distorted rubber gasket inserted in valve module for upper and lower covering parts as usual. The residual part invaded into the cylinder interferes smooth movement of plungers, so unnecessary part of the rubber gasket were cut and removed so carefully not to blowing by air and water pressures. After removing sludge and banishes in the module and applying lubrication by silicon grease on O shape rings, disassembled parts were re-constructed with successful result. Dysfunctions in a familiar machinery is relatively easy to repair because of long lasted experiences, this is why I hesitate to introduce some sophisticated new equipment for our business. As for my opinion, any device and machinery should work well at any time I want as designed by the engineers, so periodical maintenance should be be performed. Any machinery could be continued if servicing maintenance were performed adequately.