Nut backed off ball caused accident
I was heading up to santa cruz ca. in my 40' american eagle I had my motorcycle in tow on a utility trailer. Before I left I had tighten the nut on the ball with an air impact driver the kind that you...
Forum Discussion
VintageRacer wrote:
That's why the instructions that come with the ball say to tighten the nut with a torque wrench, not an impact wrench. Totally your fault. Surprised you admit using an impact wrench on that. You have no idea of what torque you are developing with an impact wrench. Depending on the ball size the correct torque is up to 450 ft lbs.
X2 ... proper torquing would most likely prevented this nightmare now facing the OP. A very expensive lesson learned that was totally preventable.
I also agree that there was some problem with the safety chains and their rating, attachment, etc. because they should not have broken.
Larry
