Recent content by andrewu

Thanks. The nut is underneath and is pushed up by the spring loaded flat bar, but when pressure is applied to the jaws on tightening, the nut is forced down and separates from the screw?

I have an old Fortis vice which has been absolutely reliable for many years however it now ‘jumps’ when tightened and does not give any grip. It has a lever by the handle for quick adjustment which raises and lowers the locking jaw. When it jumps the lower locking jaw is forced down and then is...