Fault and Solution of Hydraulic Jacks Cylinders
Fault and solution of hydraulic jacks Cylinders Hydraulic jacks Cylinders piston rod cannot extend, extend slowly or cannot extend completely? 1. Open the oil drain valve of the pump: fully tighten the oil drain valve; 2. The joint is not tightened: fully tighten the joint; 3. Lack of hydraulic oil in pump oil tank: add [...]