Hello, my 2-pillar lift HTC, type HIEV 3, year of construction unknown, no longer rides up on one side. It will most likely be the 2 shell carrier nut. Now my question is: Does someone know how to use it and how to build it? I have already released the stage from the chain drive and laid it down, as well as loosened the arm and pushed it up. Now the upper part (picture 2) can only be raised 2-3cm and bolted down. “Sledge” (don’t know exactly what it’s called) on picture 2 solve with the 2 fittings so that I can replace the half shells support nut ? Mfg Jonah