Adding gauge to hydraulic press

[Ian Geary]

Hi all

I purchased a new hydraulic bench press from Ebay, which I have assembled (once i had gathered the necessary bolts that were missing)

Zero instructions, but ultimately there's only about 9 bits to it.

Connecting up the hydraulic ram was easy, as it's a self sealing connector.


Next is the gauge port: it seems I need to remove the port plug and screw in the gauge (with washer). Seems simple.


However, the port plug is really tight. Is this normal? Do I just need to give it full force?

This is the thing - I just wanted to check that i am unscrewing the right thing





Fwiw my 27mm crows foot spanner is in a pipe about 60cm long, and i have a breaker bar on the 22m socket.

I am starting to just lift the press of the bench when I push, which is odd as I though gauges etc didn't need to be "over tight"

Thanks,

Ian

[DaveF-SkinnysAutos]

Are you sure it’s not a reverse thread? Have you tried some pressure in the opposite direction, which way is the gauge that screws in threaded? If your happy your applying pressure in the right direction its got to just be tight?

[E-bmw]

I am sure this will be a daft question but I assume you have made 100% certain that there is zero pressure first?

On top of that I think what you are trying to undo there is a bleed port, the gauge point looks to be the bottom part with PTFE thread tape on it.

[Ian Geary]

Thanks for the replies.

I will check for a reverse thread, and see what is on the gauge (ie male).

I haven't checked there is zero pressure yet- in hindsight I should have done e the gauge before the ram.

Still, I've not squeezed the ram yet, and there is a dial/ knob that I have loosened fully, which i assume is the pressure release control for it.


I will also have a closer look at the port - the 27mm larger nut rotates in concert with the entire cylinder mechanism, and so I had assumed i would hold it stationary whilst undoing the bolt screwed into it.


I will do a bit more googling perhaps.

[Belle427]

Cant see it being reverse thread or under pressure, looks like your also taking out the right blanking plug but cant understand why its so tight.