Kondia FV-1 Head disassembly

[Mayhem]

The plan is to hoist the knee up high and install the gibb and then lock it off to limit movement (weight still held by an engine lift) and then install the screw. Next the nut will be threaded on by hand and the whole assembly lowered into position. If need be, the knee can be loosened once the screw is fitted and lifted up to ensure adequate clearance.

I actually think the damage to the original nut was caused by the knee being cranked too high, so that the screw disengaged. There are threaded holes on the column that I believe are for stops but if they are not, I will certainly make sure that I fit some. I had thought about drilling and tapping a hole in the bottom of the screw so that I could attach a disc that would stop the screw being un- threaded from the nut. However, I wonder if this will limit my Z axis too much. What is the minimum length of thread that I should keep in the nut at any one time? My conservative guess would be 50% but I really don't know. My disc idea would see 100% of the nut being engaged with the screw at any one time.

I haven't actually tested the fit of the nut to the pedestal, as it is in my shop at my Mum's house, where it was part of my show and tell