Very educational DIY. Got to see the innards of the pump for the first time. Isn't it filled with oil. I mean such pumps now days have hydraulic function.
Its not hydraulic. Simple piston that pushes air. very simple and reliable.
I am also planning to give it a coat of good paint to make it look new!
Yesterday, I was able to fill air in Safari tyre which was almost flat (15 PSI, Rim was not touching the ground, fortunately) in about 20 mins. Talk about the hearty excersize! I have also ordered sealant for Safari tyes. Will update soon.