Woody's build thread

[jcslocum]

Woody, the issue was most definitely the goo you put between the spacer and the hub. Lug bolts do not really stretch much when tightened and depend quite a bit on the friction between the head and the wheel for staying tight. Once the good dried and then began getting squished more by the loading of the wheel the space it was taking up and the bolts were loose. You're lucky there was nothing more that happened!!

I did design work for Cat on the D11 dozer tracks when it was a new machine. The plates (grouser plates) for the tracks are bolted on. We did lots of testing to determine the proper torque value for the special bolts used to hold the grousers on. We determined that 4500 Ft Lbs was the right amount and did lots of testing to make sure they would stay in place and could be taken off easily when service was required. Well, they were supposed to mount the grousers on the assembly line and then paint the assembly. Well they changed that to paint the undercarriage and the grouosers before mounting them. Well, the first D11 to get to the field with these tracks fell apart in about an hour. That got the scramin call that out design and tools were NFG and we must fix this immediately. Well this was not so esy to do as the PAINT was the thing creating the problem. Once the paint wore away, the bolts were loose and fell out.