Well I made it down to the workshop and got the other parts machined. I decided to go for the cross piece as per pic in previous post. I tried to fill the oil via the hole I had bored but it was too small really so I resorted to unscrewing the gauge and filling with oil then screwing the gauge back in. Obviously this put a reading on the gauge, actually about 3000lbs which was the number I was hoping to see for the drawbar. Anyway the filler screw suddenly became a bleed screw
I was able to slacken it slightly to release the pressure so the gauge read zero again. Great I thought now to the testing, put it in the spindle and big dissapointment, only 600PSI showing which equates to 200 PSI if my thoughts on the 1/3 inch area pison is correct.
I thought it may have been the gauge but I robbed one off a welding regulator and got similar results, so that now means either the method of measuring is not working as anticipated or my drawbar force is very low. If I get a chance I will make up an adapter so I can put it into the Beaver Mill, I put in new Bellevilles last year so it should be good.
I now have to try and find info on how the Chirons drawbar works, I know its air that operates it but how it actually is constructed I have no idea as it is inside the spindle and I dont have any drawings.
Below are a couple of pics of the tester.
Hood