Sprocket pulling advice for D47U

What does everyone think of this setup? I put about 2000 psi on the 60 ton cylinder and it creates a lot of deflection in the rim. Am I grabbing it too far out from the center? Should I be grabbing the webbing in between the spokes? I don't want to ruin the rim. Has anyone ever ruined a sprocket grabbing it like this?

One thing I do not see - the nut on the end of the deadshaft. It should be there, loosened a few turns. The nut is the only thing that will stop those pieces when it breaks loose! When they do "pop" it is with tremendous kinetic energy! Of course, anytime you are pulling something, the closer to the shaft you can place the puller, the better. I would be concerned about the length of the rod in your puller, why not cover the whole spoke? What is the material in the puller and rods, is it properly heat treated, annealed and tested for those TONAGES of pressure.

Unless I am not seeing the relative distances between the power supply and the cylinder, you are way too close! The unit by Caterpillar that was in use by us in the Cat shop in the early 1970's, hoses were long enough for the operator to be on the other side of the machine. No bystanders on the puller side - when they do let go and it sometimes was with a BIG BANG - you knew you did not want to be anywhere close! --You also have to think of the methods of putting the sprocket back with the required tension. --- CTS

An addendum - 2000 PSI in your quote is only one part of the equation necessary -- One must know the area of the piston that the 2000 PSI is applied to before you can even think about the tonnage being applied to the work. Time to dig out the mathematics and do some calculations. Only when that is done and the strength of your "puller" is known can you safely and properly attempt to pull the sprocket. -- cts

In the 2nd picture the bronze washer will stop the sprocket from flying off. The steel round piece behind the bronze washer is threaded onto the shaft that the sprocket is mounted on (just like the cat tooling). The puller arms are 304 hot rolled stainless 1x3. AT 30 KSI they should support 135 tons. I should only need 30-40 to remove these sprockets.