Repairs Z Force 48 won't move

Model 17AI5BHB010 quit moving. The hydraulic pump is not activating when the brake lever is released. Is there something I should look for before I take it into a repair shop? I am the mayor of a small town...with little tax base...and this is the mower that was purchased a few years back to mow our cemetery with. I had it tuned up at last month and thought it was ready to go for the year.



Is there a fuse that could have blown that activates the hydraulic pump? Possibly the switch went bad?



Any help would be greatly appreciated.