The BendPak 4-Post Wide/High Lift has safety locks that are located in the column. These safety locks are air operated. When you are locking this unit, this air cylinder will expand, and lock the unit in place. When you go to unlock the safety switch, the air cylinder will fill up with air again, and then decompress to unlock the unit.
answered 1 year, 1 month ago
0out of 0found this answer helpful.