Q&A
How to use it?
- First, connect the joint of the manual pump to the jack; then, select the position and tighten the hydraulic pump drain screw clockwise to work.
To lower the piston rod, please loosen the manual oil handwheel slightly counterclockwise, and the cylinder will discharge and the rod will gradually descend. Or the drop speed will be very fast, which is very dangerous.
Why must it be placed on a flat surface?
- All cylinders must be placed on a flat and resistant ground. If they are placed on sandy ground or on loose surfaces, the cylinder will be damaged.
Why doesnt the piston fall back automatically?
- After the pressure is relieved, the piston can only retract with the help of heavy gravity. It is recommended to pressed directly by hand.
Is it safe to use this hydraulic jack?
- This cylinder has a spring return structure. After lifting, it can be removed fastly, but the connected hose cannot be used to pull the cylinder. Since the jacks lift stroke is short, please never exceed the rated stroke to avoid defective.
Does the hydraulic pump come with hydraulic oil?
- The package does not include hydraulic oil, please buy it locally by yourself. Thank you for your understanding.