1. Lifting - track jack should be smoothly completed, with a length of 1.5 meters of steel steel rod inserted into the handle hole and up and down reciprocating throw to ascend a height it is needed.
2. Slow down, turn slowly drop control handle up to braking position will lever up and down throw, every reciprocating or one tooth at a time.
3. Drops - pull lever, use leverage vertical impact downhill baseboard end surface, can again down to the starting position
4.The sliding parts often lubrication, found the parts damaged change in time.