Dual assist hydropneumatic jack

A dual-assist hydropneumatic jack, comprising:

• a frame having an upper portion, a lower portion, and a central portion, said central portion defining a chamber therein;
• a plurality of cylinders slidably coupled to said frame;
• a plurality of wheel assemblies coupled to respective ends of said frame, said plurality of wheel assemblies being adapted to support the jack during loading and unloading, said plurality of wheel assemblies having a locking mechanism which prevents movement of said plurality of wheel assemblies when the jack bears a predetermined load;
• a hydraulic assembly for providing hydraulic fluid to and receiving hydraulic fluid from said plurality of cylinders;
• a flow divider coupled to said frame and positioned between said hydraulic assembly and said plurality of chambers for dividing hydraulic fluid between said plurality of cylinders;
• and
• wherein each of said plurality of cylinders include means for raising and lowering in response to hydraulic fluid being introduced therein and evacuated therefrom, and means for lowering in response to air being introduced therein.