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 hydraulic oil;
4. Pump or valve problems: repair, or use a new pump or valve;
5. Hydraulic jack overload: use other hydraulic jacks that meet the load requirements;
6. Hydraulic jack piston rod blockage: check the cleanliness of the cylinder, replace the damaged parts.

Hydraulic jack can’t keep pressure?
1. Oil leakage at the joint: clean the joint thread and re connect, and tighten the joint;
2. Hydraulic jack sealing ring oil leakage: clean the cylinder, replace the seals, use clean hydraulic oil;
3. Oil drain valve not tightened: fully tighten the oil drain valve;
4. Pump or valve failure: repair or replace the pump or valve.
Does the piston rod vibrate when it is extended?
1. There is air in the hydraulic jack: exhaust;
2. Hydraulic jack piston rod blockage: check the cleanliness of the cylinder, replace the damaged parts.
Oil leakage of hydraulic jack?
1. Oil leakage at the joint: clean the joint thread and re connect, and tighten the joint;
2. Seal damage: clean the cylinder, replace the seal with clean hydraulic oil;
3. Hydraulic jack damage: replace with a new hydraulic jack.

Can the piston rod of hydraulic jack not retract or recover slowly?
1. The oil drain valve is not or not fully opened: fully open the oil drain valve;
2. The joint is not fully tightened: the joint is fully tightened;
3. The pump oil tank is full: drain the hydraulic oil in the oil tank to a suitable position;
4. Tubing blockage: clean or replace tubing;
5. Damage of tension spring or compression spring in hydraulic jack: replace tension spring or compression spring;
6. Hydraulic jack damaged: replace hydraulic jack

Hydraulic Jacks Cylinders

Hydraulic Jacks Cylinders

Hydraulic Jacks Cylinders, Double Acting High Capacity Pneumatic Cylinders, Hydraulic Cylinder Jack DRC Series, Double-Acting High Tonnage Hydraulic Cylinder Capacity: 50-800 ton Stroke: 1.97-11.81 inch Max. Pressure:10,000 psi Double acting, for positive retraction. Hard chrome plated high quality steel plungers. Plunger wiper reduces contamination,extending cylinder life. The exclusive guide Ring is designed absorbs eccentric loading without galling cylinder […]