rke[pler
Diamond
- Joined
- Feb 19, 2002
- Location
- Peralta, NM USA
I have a 3-point mount grader blade that I occasionally use and the nut that retains the blade section of the unit had come loose some time ago. The mount is a 2"x4 1/2 tpi bolt and the nut worked down allowing the top plate on the blade to bang out the upper inch or so of thread. I suspect that the occasional swinging of the blade from one side to the other just walked the nut down. Rather than take the time to cut the whole top apart and replace the bolt mount I simply made a 1" thick washer from some 4140HT, putting the replacement nut into good thread.
The old nut had a retainer made by drilling a hole in the middle of one flat and welding in a 3/8 nut to keep a bolt, tightening the bolt against the thread. From getting the old nut off all this really did was to make removal harder.
Rather than replicating the failed system I was thinking of maybe trying some Loctite? Think there's a chance that Loctite would help retain that honking but nut that's a little wobbly on the threads? I'm a little tempted to dab a little weld between the nut and bolt if the Loctite isn't expected to hold.
The old nut had a retainer made by drilling a hole in the middle of one flat and welding in a 3/8 nut to keep a bolt, tightening the bolt against the thread. From getting the old nut off all this really did was to make removal harder.
Rather than replicating the failed system I was thinking of maybe trying some Loctite? Think there's a chance that Loctite would help retain that honking but nut that's a little wobbly on the threads? I'm a little tempted to dab a little weld between the nut and bolt if the Loctite isn't expected to hold.