How can I remove the column from the handle mechanism? Is there any lock? When I assemble the chair, I need to push down the handle and push into the column.

Doris, June 2007

To separate the column from an office swivel chair gas mechanism, turn the chair over and remove the CLIP and WASHER from the center of the leg base. Then slowly withdraw the mechanism containing the gas lift cylinder from the column. Spread newspaper to protect the floor from falling greasy parts.

This is the order of which any fallen off parts must be replaced. http://swivel-chair-parts.com/Tips/GasCylinderKitSchematic.html

Don Weisman, June 2007