As an engineer alone today

I have spent almost today all day long maintaining working chairs in my laboratory, water supply control valves, three ways syringes and ultra sonic wave scaling device. Obstructed material in water gallery was crystal of  Calcium Hypochlorite as usual.
A malfunction of the plunger in control valve block was observed that was caused by the edge of sealing rubber sheet extruded by tightening pressure of it's assembled bolts. Removing an unnecessary part of the sealing material could solve the long lasted problem like a chronic disease.
I didn't forget to lubricate all the hinge pins with motor oil containing Microflon powder. Thanks to this kind of treatment, our machinery have been kept in good condition with no tendency of wear, free plays nor rattling. So, re-covering of the mounts spending over 500,000 yen for 4 working chairs   has re-born like new ones. Retrofitting of key components like solenoid valves and diaphragm pressure control valves for air and water made them reliable partner with us continuing 50 years longer from now, if my son might permit to do so. Some conceptional difference exist on our business because of that of generation and of perception of work itself. So, it is fluid like that he would come back to our laboratory here and continue our laboratory taking after me.
This kind of maintenance on holiday free time makes our general practice comfortable while working time. I make it a rule to maintain all the equipment to work in the best conditioned performance at any time.