There has been several threads here over the years regarding tractors " Breaking " in half with backhoe's attached , Specifically N.H. tractors and cracks in the bell housing areas BUT Although I have asked , 1) Unsure if 3 point or subframe and 2) Unsure if standard transmission or HST model . Also Unsure " How " top-link was attached , In other words , How much pressure was applied to top link . When attaching my 757C to my TC 30 HST , I can use down pressure on boom and really pull up a lot of slack in the top link , BUT I DON'T , I simply back into hoe , use stabilizers to raise and align , then back completely into hoe . Attach front pins , then hook up top link , raise stabilizers and snug up top link with hoe in basically a " Travel " position . There is no movement in backhoe while traveling or using and there is little if any torquing of tractor between front sub frame pins , back hoe and top link back to tractor .
My belief was that people were over tightening the top link thus shifting the pressure point farther up the tractor into the bell housing .
Fred H.
