zubinpatrick wrote:You can buy the bit that turns this or if you are crafty a good pair of small needle nose pliers will turn it (maybe).
The pressure stat has a blob of glue on it that you need to remove before you try to adjust it.
Thanks, the needlenose pliers did the trick and the bottom came off nicely. Here is what I found:
The plastic turned with some resistance, being warned not to force it, I was.
I screwed it away from the brass part and tested the unit. The gauge now goes up almost to 1.0 and then falls back a little before doing it again in a short time. So it appears that I got it fixed up by myself without messing up!
That was easy.