Bobcat 435 mini x problems, need help

[Crystal Waterscapes]

I have a bobcat 435 mini exc fast track. I was working on it when I heard a snap or crack noise and the tracks quite turning. All the other hydraulics are still working. When I try to move forward or backward I get absolutely no response. I dont see any hydraulic leaks. My machine is stuck on a job site, I need to finish and get it out of there ASAP. Any ideas on what the possible problem and fix may be.
Thank you for your help
Robert

 

[SSdoxie]

If it is a "Fast Track" model, it has a belt driven hydrostatic pump. Sounds like the belt may have broke. All other hydraulics would work fine, they are run from pump directly on end of the engine. Hydrostatic pump is under the right side hood just behind the radiator.