Jack Safety Practices
1) used should be checked before each part is intact, the oil is clean. Hydraulic jack safety defects or spiral, rack Jack screw and tooth wear of 20%, is strictly prohibited.
2) jacks should be set on a flat, solid, with a wood mat flat.
3) jacks must be perpendicular to the load surface, the top-weight interface between mat layer should be added.
4) jacks never overload shall not be extra long handle, shall not exceed the prescribed number of operations.