Atkinson Tankmaster Sight Gauge/Tube - is this easy to replace?

[Rollerball]

Over the years the sight gauge/tube on my oil tank has become increasingly discoloured (presumably on the inside as I've cleaned the outside) which makes it a bit tricky to see the green bead.

I happen to have a spare sight gauge but I'm wondering if this is easy to replace. Is it just a case of turning off the oil using the wheel, unscrewing the old gauge then putting in the new one or is there more to it than that? For example, do I need to replace the O-rings as well for example, add plumber's PTFE tape to the sight gauge thread, etc?

I've looked online for some instructions but can't find any.

I should note that I have in the past replaced the wheel, washers, filter and bowl as well as the pull to read valve so I'm moderately familiar with the setup, however I found good instructions on how to carry out all of those parts replacements. I've never replaced the sight gauge though.

 

[oilhead]

Yes, it is as simple as that. In fact you dont need to turn off the oil as long as you don't operate the pull to read knob. If you didn't have a spare unit, you can just remove the pvc tube and fit new quite easily by warming up the end that fits on the nipple.

 

[Rollerball]

Thanks. So there are no O-rings to replace, etc?

I'll also be careful not to lose the green bead.