Disassemble V drive

[P69]

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

[Dale Tanski]

The proper tool for removing the items that you are referring to is a spanner wrench.  Threads are all standard.
Dale

[SVJourney]

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

[PeteW]

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