Hi, part # 1-323245, the compression spring on the 05 TTHP where the speed shift attaches to the speed control rod (nearest the operator) fell off along with the bolt, washer and nut. I have repurchased the parts but after looking at the parts diagram I still do not understand how they go back together, do I need a special tool? this spring is very stiff and will not simply reattach with hand pressure.