Our 2008 VF3 has 'Tool Unclamp' message on the screen. Took the front cover off, the TRP isn't contacting the upper prox switch when tool release solenoid is triggered . Had a look at another machine, when the solenoid is triggered the TRP seems to go up in two stages. I'm thinking one stage is the big spring visible on the TRP assembly and the second stage is the washer stack up on the drawbar. Maybe the washers are broken and not allowing the TRP to retract fully? Maybe need a draw bar replacement? When the TRP retracts, (and fails to contact the upper switch) I can manually pry the TRP assembly up another 3/4" or so and it will contact the switch, when I release my pry bar, the TRP gets pushed down, (I'm assuming by air pressure).Does it sound like I need a new draw bar? Thanks