Help Please-poulan weed eater mower blade will not Disengage

[RBnGA]

I have a Poulan Weed Eater VIP 14.5 HP Briggs engine 42" cut model number*130-405 riding mower. The mower PTO lever will not disengage and therefore the mower will not start or even move to take to the repair shop. Has anyone experienced a similar condition and what is the solution.
Thank you for any replies
RB

 

[ILENGINE]

If looking under the right side of the deck by the discharge you will see the brake arm that goes between the spindle pulley and the other end has a roller on it. The roller contacts a rotating plate(pivot arm in other words) that tensions the belt when you engage the deck.. The problem is the roller wears a notch in the rotating plate that acts like a detent. When detented the deck won't disengage.

It will be easier to see all of this if the deck is removed. and you will need to replace the arm, or I have in a pinch welded the plate back up and then ground it back down smooth.