In a single, compact lightweight unit, Star has combined an efficient pump and durable cylinder that produces one ton lifting capacity. The model HF 500 Jack is easy to operate - takes only 4 1/2 pounds of pedal force per 100 pounds of load, and it is fast acting. For each stroke of the folding pump foot pedal, the cylinder piston rod moves 1/2 inch. The unit has a built-in release pedal for rapid lowering, and the Jack is equipped with lugs that make it easy to mount. Star will provide any cylinder stroke length subject to the limitations shown in the specification table below.

Specification Table:

• Load capacity - 2000 pounds.
• Hard chrome plated piston rod and pump piston.
• Force required on pedal=4 1/2 lbs. per 100 lbs of load.
• Max. stroke 2000 lbs. load with no eccentric loading:
• Cylinder and rod with pinned ends - 25" stroke max.
• Cylinder fixed and rod guided - 40" stroke max.
• Minimum stroke with pedal return spring - 9".
• Piston rod travel per pump stroke - 1/2".
• Weight: 8 1/2 lbs. 0" stroke - add 1/2 lb. per inch of stroke.

TO ORDER:

• Add stroke and, if desired, optional overload relief valve to basic
• Model Number, HF 500.

Examples:

• HF 500-30 is a 30" stroke unit without overload relief valve.
• HF 500-25-RV is a 25"stroke unit with overload relief valve.