High-Lift Jack

1. High-Lift Jack SECTION: Tools and Equipment ISSUED: 02-2011 REVISED: ##-####

2. Objectives • To provide an understanding of the following • Specifications • Use • Maintenance • Safety

3. Specifications • 48” and 60” Hi-lift jacks • Rated load-4660 lbs • Tested-7000 lbs • Upper 12” • 60”, 2660 lbs • 48”, N/A • Clamping - 750 lbs • Winching - 5000 lbs • Material - Cast iron

4. Hi-Lift Components • Spine • Reversing latch • Climbing pins • Shear pin • Base

5. Jack Mate • Attachment used for a clamp, base, shackle, chain grab and bite point Bite Point Shackle hole Chain Grab Base

6. Operating Procedures Raising • Move reversing latch to top position • Slide jack up to load • Operate jack handle insuring full strokes are made allowing climbing pins to fully operate • It requires 177 lbs. of force on the handle to raise/lower a max load of 4660 lbs

7. Operating Procedures Lowering • Move reversing latch down • Operate handle using full strokes • Use caution as this is when handle will snap back with considerable force • Jack will free fall when the load is approximately 100 lbs or less

8. Raising Spreading Use

9. Winching Clamping Use

10. Jack Mate Use Shackle Attachment Clamp Chain Grab

11. Jack Mate Use Lifting Point Base

12. Maintenance • Keep free of dirt and debris • Clean with degreaser and stiff brush • Remove rust with wire brush or Emery cloth • Remove burrs from spine • Lubricate edges of spine and moving parts with penetrating oil, silicon or Teflon spray • Do NOT use WD40 • Inspect and operate, checking for damage and bent components

13. Safety • Wear appropriate PPE • Lift an inch crib an inch • Bow in spine: Ensure not to side load jack as it will bend easily • Watch for base kicking out or jack kicking out under load • Overloading: shear bolt will break causing jack handle to drop freely • Handle kick back: when raising or lowering a load the handle can snap back when climbing pins are not set