Hi Lift Jack Workshop for 4x4 Offroad Vehicles

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Information about Hi Lift Jack Workshop for 4x4 Offroad Vehicles

Published on March 12, 2014

Author: offroadjunkie

Source: slideshare.net


Slides from a workshop detailing the correct use of a Hi Lift Jack for safe recovery during an offroad excursion.

www.offroadjunkie.com Hi Lift Jack Workshop Dr. Tejas Kothari

Contents What is a Hi Lift Jack Different Types of Hi Lift jacks Parts of a Hi Lift Jack Specifications Safety & Handling Uses & Application Working mechanism Accessories Maintenance Mounting on your vehicle Other Manufacturers Air Jack What’s wrong in this pic? www.offroadjunkie.com

Hi Lift Jack Versatile lever-operated mechanical jack capable of a lift of a metre or more www.offroadjunkie.com

Characterized by rugged, simple construction. It comprises a steel beam with a series of equally spaced holes along its length, and a hand operated mechanism which can be moved from one end of the beam to the other through the use of a pair of climbing pins. www.offroadjunkie.com Typical sizes for the farm jack are 4 feet, 5 feet and 6 feet, the size referring to the length of the beam. The jack's versatility stems from the fact that it can be used for such applications as lifting, winching, clamping, pulling and pushing.

Synonyms Farm Jack Implement Jack Railroad Jack Vaporjack Unijack Jackall Handyman Jack Sheepherder's Jack Long-beam ratchet jacks The Widow Maker www.offroadjunkie.com

History Founded in 1895 by the late Philip John Harrah First jack made in 1905 One of the oldest family run companies in the state of Indiana, USA www.offroadjunkie.com

Types www.offroadjunkie.com

Cast / Steel www.offroadjunkie.com Occasional offroad use Black powder finish 3’, 3.5’, 4’ & 5’

All Cast www.offroadjunkie.com Regular offroad use Red powder finish 3.5’, 4’ & 5’

X-treme www.offroadjunkie.com Extreme offroad use Charcoal Metallic powder finish 4’ & 5’ Clamping & Winching attachment

First Responder Jack www.offroadjunkie.com Similar to x-treme Bright colour Fluorescent coating Swivel base

Parts www.offroadjunkie.com



Specifications Weight Rating www.offroadjunkie.com

Weight 11.3 to 14.2 Kgs Why is it important to know the weight? www.offroadjunkie.com

Rated Load The rated load is the heaviest load which a piece of equipment has been designed to deal with. Manufacturers determine the rated load. This is done in part with the use of standardized equipment which has known tolerances, and in part by testing the equipment to see how much of a load it can bear or produce. 4660 pounds / 2113.74 kgs www.offroadjunkie.com

Tested Load Test loads is usually a percent of the rated load applied to any equipment The purpose of a mechanical load test is to verify that all the component parts are fit for task and loading it is designed for. 7000 pounds / 3175.14 kgs www.offroadjunkie.com

Winching: 5000 pounds www.offroadjunkie.com

Clamping: 340 kgs www.offroadjunkie.com

Basic Safety Read the manual Keep bystanders away Inspect the jack Gloves www.offroadjunkie.com

Handling the jack Weight Position of reversing pin Laying the jack down www.offroadjunkie.com

Uses lifting winching clamping pulling pushing spreading to change a tyre to clear an obstacle remove a object stuck in the ground to break and seat a tyre bead extricate during accidents www.offroadjunkie.com

How does it work? www.offroadjunkie.com

The lifting ratio is almost 30:1 www.offroadjunkie.com

Lifting To change a tyre To clear the diff / part resting on a rock To lift a tyre to insert a traction aid To escape a rut www.offroadjunkie.com

Pre-Lift Procedure Switch off the vehicle - engage parking brake Check the jack Safety protocols Inspect the surroundings and do a stuck assessment Chock the wheels Identify lifting points www.offroadjunkie.com

Inspect Surroundings Will the vehicle become unstable Will the vehicle roll off Do i have an exit strategy - vehicle and yourself Traction aids are ready Do i have a firm base for the jack - slipping / sinking www.offroadjunkie.com

Chock and Block A chock is a wedge for steadying an object and holding it motionless, or for preventing the movement of a wheel. Which wheel to chock? Chock the wheel opposite the end being lifted. www.offroadjunkie.com

Lifting Points Bumpers Rock sliders What not to use: Tubular bumpers Door Sills Unrated Bumpers www.offroadjunkie.com

Lifting procedure Positioning the jack Holding the jack Lifting procedure www.offroadjunkie.com


Grasp the handle firmly with both hands. Carefully pump the handle up and down to raise the load. Do not use an extension on the handle. Why? The load will be raised on each down stroke of the handle. Watch the load and the jack carefully. Stop lifting if either one starts to move. Do not continue until it is safe to do so. When the load is raised to the desired height, place the handle in the upright position clipped to the steel standard bar. Stabilize the load www.offroadjunkie.com

Lowering the load Most dangerous part Important! During lifting and lowering, the weight of the load pushes up against the jack’s handle. If your hands slip off the handle, or if the handle is horizontal when you move the reversing latch, it may move up very quickly. The jack must have a load of 150 lbs. or more to lower step-by-step. Otherwise, the lifting mechanism will slide down to the base plate, dropping your load. Ensure all bystanders are clear of the load being lowered. www.offroadjunkie.com

Be sure the handle is in the upright position clipped to the steel standard bar before lowering the load. Move the reversing latch to the down position. Grasp the handle firmly with both hands. Carefully pump the handle up and down to lower the load. The load will be lowered on each up stroke of the handle. www.offroadjunkie.com


Clamping Loosen the standard top clamp-clevis bolt. Turn the top clamp-clevis 90° to the steel standard bar, and re-tighten the bolt. Note: You can connect the top clamp-clevis anywhere along the steel standard bar to use the jack as a clamp. Operate the jack as you would for raising a load www.offroadjunkie.com


Winching Make sure the top clamp-clevis is in line with the steel standard bar. Install one end of a chain or tow strap securely to the object to be winched. Securely attach the other end of the chain or tow strap to the top clamp-clevis of the jack. Take another chain or tow strap and secure one end to a fixed, stable object. Attach the other end of the chain or tow strap to the large runner on the jack (do not attach chain or shackle to bottom hole of the large runner on the jack). If the fixed object is a tree, follow “Tread Lightly” principles and use a tree strap. Operate the jack as you would for raising a load www.offroadjunkie.com


Spreading www.offroadjunkie.com

Breaking the tyre bead www.offroadjunkie.com

Jack and Push www.offroadjunkie.com Reference: Ken Sibly The New Zealand 4 Wheel Drive Handbook. Shoal Bay, 2004, page 183 Personal copy.

Accessories www.hi-lift.com DIYs / alternatives www.offroadjunkie.com

Neoprene Jack Cover www.offroadjunkie.com

Jack Protector www.offroadjunkie.com

Mounts www.offroadjunkie.com

Handle Keeper www.offroadjunkie.com

Lift-Mate www.offroadjunkie.com

Off-Road Base www.offroadjunkie.com

Off-Road Kit www.offroadjunkie.com

Bumper Lift www.offroadjunkie.com

Fix-It-Kit www.offroadjunkie.com

Handle-All www.offroadjunkie.com

Jack Mate www.offroadjunkie.com

Mount Adapter www.offroadjunkie.com

Mount Adapter www.offroadjunkie.com

Self Recovery www.offroadjunkie.com

Tip # 1 You can use the hi lift handle to straighten out a bent steering rod. www.offroadjunkie.com

Tip # 2 Use a shovel to reposition your tyre. www.offroadjunkie.com !

Tip # 3 Which Gloves? Why? www.offroadjunkie.com

Ideal Glove www.offroadjunkie.com

Maintenance NEVER PERFORM MAINTENANCE ON THE JACK WHILE IT IS UNDER LOAD. Cleaning Air pressure, water pressure, or a stiff brush to clean. Use a non-flammable cleaning solvent or another good de-greaser to clean the jack. Remove any existing rust, preferably with a penetrating lubricant www.offroadjunkie.com

Binding If the climbing pins start to bind in the holes of the standard bar the jack will not operate properly and safely. Rusty climbing pins, dirt, or worn bar can be causes of binding. Clean and lubricate the lifting mechanism. Test the jack by lifting it up without a load. If the binding continues, send it for repair. If the jack binds while under a load, use a jack with equal or larger load capacity to lower the load safely to the ground. After unbinding the jack clean, lubricate and test. www.offroadjunkie.com

Storing the Jack Place the handle in the upright clipped position against the steel standard bar. Raise the reversing latch until it locks in the up position. Store in the upright clipped position in a dry location, preferably indoors. www.offroadjunkie.com

Why not to use grease? www.offroadjunkie.com

Mounting on your vehicle www.offroadjunkie.com Bumper - vertical or horizontal Roof Rack Roll bar Hood Inside Tyre Mount

Bumper www.offroadjunkie.com

Bumper www.offroadjunkie.com

Bumper www.offroadjunkie.com

Bumper www.offroadjunkie.com

Bumper www.offroadjunkie.com

Roof Rack www.offroadjunkie.com

Roll bar www.offroadjunkie.com

Hood www.offroadjunkie.com

Inside www.offroadjunkie.com

Inside www.offroadjunkie.com

Tyre Mount www.offroadjunkie.com

Alternative - Air Jack www.offroadjunkie.com

www.offroadjunkie.com Air  Jack High-­‐li. Used  when  engine  is  running Used  without  engine  running Used  on  almost  any  vehicle Needs  accessories  or  jacking  points Wont  sink  in  so.  ground Needs  base  to  prevent  sinking More  stable  less  versaAle Less  stable  very  versaAle Cannot  be  used  as  a  winch Can  be  used  as  a  winch Cannot  be  used  as  to  jack  and  push Can  be  used  to  jack  and  push Dust  and  sand  does  not  affect  operaAon Dust  and  sand  can  jam  mechanism Useless  if  punctured Reliable  if  properly  maintained Small  punctures  may  be  patched Spares  available

Other Manufacturers Reese Larin Jackall www.offroadjunkie.com

What’s wrong in this picture? www.offroadjunkie.com







www.offroadjunkie.com Thank You

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