I disassembled the V drive, except for the gears and bearings. I got stuck at the lock nuts (red arrows on picture).
I bent back the tab on the lock washers (green arrows) and gave the notch in the lock nuts a cowardly smack with a flat screw driver and hammer, but the lock nut did not budge.
What is the best way to remove these lock nuts and are they left- or right-handed threads?
Thanks
https://picasaweb.google.com/111274927949602013478/Vdrive#6231325091220835314
The proper tool for removing the items that you are referring to is a spanner wrench. Threads are all standard.
Dale
Everyone I know who has done this, including myself, has used a hammer and a brass drift. Or a steel drift if you get a new nut from Walter. Mount the shaft securely in a vise and give it good strong whacks to break it loose. The torque is 150 ft/lbs so its on there pretty snugly.
I was unable to find a spanner beefy enough to break that torque. I broke the only one I did manage to find. Walter said that they do not sell one. You could get a socket machined easily enough if you wanted to. Just take an appropriately sized socket and have a machinist cut to match the nut.
Wayne
I too have had to drift that nut loose. If you whack it from opposite sides it will give. Nuts a pretty soft metal so getting a new on is a good idea. But I have filled them back to almost new look. I use the spanner locked onto one of the studs and crank the input shaft to tighten the nut. The 2:1 reduction gives a mechanical advantage. Always leave that nut on the shaft. Its a thread saver. Pete