I had to replace mine because the handle broke off leaving the stick part inside the tube.
I removed the bolt holding the tube and pulled the entire tube off the block. I then pushed the stick up through the top of the tube, and then put the tube back on the block. It was a little tricky realigning the tube and I needed a 2nd pair of hads to hold it while I re-installed it. You can buy a replacement stick of about $20.00. The entire process took less the 1/2 hour.
