HuFlungDung
Diamond
- Joined
- Jan 19, 2005
- Location
- Canada
I was hooking up one of my indexer cables this morning, and I noticed a hole was open in the column base of my 1996 VF3, and the bolt (a 1" Allen capscrew) was laying on the floor, a piece of it anyways. Sure enough, the bolt had broken off. There are 8 of these large bolts in total and I test torqued all the rest, and one more broke off.
They weren't too bad to extract. I thought the holes were tapped a bit on the shallow side, maybe getting 7/8" of thread engagement on a 3.5" long bolt, so I tapped a little deeper and put in longer bolts. I couldn't budge the other 6 bolts, so I left them alone. The broken off part of the bolt was about flush with the top of the tapped hole.
You other Haas owners might want to go around back and test torque the bolts on your machines.
They weren't too bad to extract. I thought the holes were tapped a bit on the shallow side, maybe getting 7/8" of thread engagement on a 3.5" long bolt, so I tapped a little deeper and put in longer bolts. I couldn't budge the other 6 bolts, so I left them alone. The broken off part of the bolt was about flush with the top of the tapped hole.
You other Haas owners might want to go around back and test torque the bolts on your machines.