On my new-to-me L45, there are two "parking brakes", one for the rear when using the backhoe and one that locks the brake pedal down under the steering wheel. The rear one works just fine, though I probably need to adjust it to a little tighter. The one up front under the steering wheel will *not* move. The pedal works fine and doesn't appear to need adjusting. What does it take to get the locking lever freed up and locking? Anybody actually use that one? The instructions in the owner's manual really only refer to the rear one -- is the front one not actually intended to be functional?