Duff-Norton^®
RATCHET JACKS
5 to 20 Ton Models

514-MT 516-MT 521-MT

1022-B

1522 1528 2028

Specifications

§ Includes operating lever.

Overall Features

• Exclusive, patented, spring mechanism in one self-contained unit - can be adjusted, repaired or
  replaced without dismantling jack.
• Load is moved one notch at a time - downstroke for raising, upstroke for lowering.
• Cannot be tripped under load.
• Rack bars can be hand-pulled to meet load.
• Covers recessed in housing to protect lifting mechanism.
• Fulcrum centers located for maximum speed and lifting ease.
• Curved tops standard on all units.
• Manufactured in compliance with ANSI B30.1.
• Each jack operated under rated load at the factory.

5 Ton

• Single-acting, ratchet-lowering units with footlift.
• Furnished with high-strength, heat-treated, double-round sockets and 1 X 30-inch steel operating lever.
• Head can be dropped or tripped instantly, when not under load.
• Perfect for moving, lifting and bracing lighter loads of all kinds.

10 Ton

• Full 10-ton load capacity top and toe.
• Broad toe rack for greater load distribution.
• Grooved rack toe for positive load alignment.
• Furnished with double-round sockets and 1 1/4 X 60-inch steel operating lever.
• Low minimum rack toe height for low clearance loads.
• Wide aluminum housing has sections for side to side stability and strength.

15 Ton

• Single-acting, ratchet-lowering units with footlift.
• Furnished with double-round sockets and 1 1/4 X 60-inch steel operating lever.
• A heavy-duty, all-purpose jack for lifting, lowering, holding and moving all types of loads.

20 Ton

• Single-acting, ratchet-lowering unit with foot lift.
• Furnished with double-round sockets and 1 1/4 X 60-inch steel operating lever.
• The heaviest, most powerful Duff-Norton ratchet jack.