High-Lift Jack SECTION: Tools and Equipment ISSUED: REVISED: ##-####

Objectives To provide an understanding of the following –Specifications –Use –Maintenance –Safety

Specifications 48 and 60 Hi-lift jacks –Rated load-4660 lbs –Tested-7000 lbs –Upper 12 60, 2660 lbs 48, N/A –Clamping lbs –Winching lbs –Material - Cast iron

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

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

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

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

Use RaisingSpreading

Use WinchingClamping

Jack Mate Use Shackle Attachment Chain Grab Clamp

Jack Mate Use Lifting Point Base

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

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