Originally Posted by
Altair 4
Yes, it works okay after it cools down - but it starts the noise and resistance after, say, bringing two 700 x 35's up by 20 PSI. This wasn't an issue when the pump was new - you could pump up tires from zero PSI without this happening. I sorta thinking about opening it up and see what's what inside.
I know one pump I have allows the whole push rod and assembly to come off the tube by just unscrewing the top at the tube. I did that a few times accidentally. Never had to grease it though. But yeah, best idea is just to look/see what there is and how you might lubricate it.