Originally Posted by gmc02jb
I have had my lift for several years and I can not get any information on it,the company is out of business my lift is model # 315 serial # 2003 the person I bought it from rebuilt the cylinder when it started to leak he said he had to cut the end off rebuild then weld it back back on,my lift does not give the capicity on it .
Although its not unheard of, its really rare to find a cylinder that has to be cut apart and welded back together for a rebuild. If a person isn't familiar with the various ways of building cylinders, its real easy to think a cylinder whose rod gland is held in with a lock wire can't be disassembled, when in truth its one of the easiest types to disassemble. I've repaired cylinders off a couple different unknown brand post type lifts, and both of them had lock wire cylinders. The only fully welded cylinders I've encountered were on military equipment where the entire cylinder was to be replaced as a unit rather than rebuilding.
A lock wire cylinder will have a slot about 3/4 to 1" long in the cylinder barrel a half inch or so down from the end of the barrel on the rod end. To remove the lock you rotate the head gland with a spanner wrench, pipe wrench, or whatever until the end of the wire shows up in the slot. The pry up slightly on the end of the wire and rotate the gland in the proper direction to wind it out thru the hole. To reassemble, locate the hole in the wire slot, hook the wire into the hole, and rotate the gland to wind the wire back into place.