How To Use A High Lift Jack Safely


The Hi-Lift Jack

Hi-lift jacks are designed to assist the traveler in surviving the harshest environments, be it a desert, a rugged mountain, an unexplored jungle, or farmlands. It comes with a complete set of accessories that make it a must-have for farming, off-roading, or doing auto-recovery.

The Hi-Lift Jack comes with a safety instruction manual. The user must read, understand, and follow the safety warnings and directives given in the manual. Pay heed to the safety labels stuck on the tool before using it.


What is a hi-lift jack?

The jack is part of the legacy of P.J. Harrah, of Bloomfield Manufacturing Company, since 1895. Invented in 1905 by Harrah, the jack has undergone a few improvements since its inception.

With over a century worth of quality experience under its screws, the Hi-Lift Jack is a versatile tool that helps the user in situations that require:

  • Clamping
  • Winching
  • Pulling
  • Pushing
  • Lifting

What are the identifying features of the Hi-Lift Jack?

  • It is a lightweight tool that is easy to operate.
  • It weighs just 14 Kg.
  • It has an official lifting capacity of 2.33 tons, but it can safely lift up to 3.5 tons
  • For durability, the jack comes with a socket design and a two-piece handle.
  • It’s climbing pins are made of specially processed steel. It displays a tensile strength of PSI 125,000 and yield of 100,000.
  • The jack’s bar is made of specially rolled highly leading carbon steel. The minimum tensile strength is 80,000 pounds, and the carbon varies between 0.69% and 0.82%.
  • The steel handle is made of 14 gauge high-yield tectonic tubing with a base yield of 55,000 PSI. It is 1.31: in diameter and 30” in length.

How to use the Hi-Lift Jack safely

The jack comes with its own safety guidelines that must be religiously followed by all users.

General safety rules regarding the proper and secure usage of the jack are as follows:

  • The first and foremost step is to read the safety instruction manual carefully. Anyone who hasn’t read the manual or understood the requirements should not use the jack.
  • Spectators should not be allowed near or under the jack supported load at any time.

Examining the Hi-Lift Jack

To eliminate any causes of concern with the jack, it is a good idea to inspect it before every use. This helps to identify and resolve any issues if there are any.

  • The jack should be checked for any damage, missing parts, or wear issues.
  • The climbing pins should not be damaged or worn.
  • The standard steel bar should be straight, and there should not be any blockages in its holes.
  • Ensure that the jack is properly lubricated to avoid rusting and damage due to friction.
  • Unless the jack is clean and in 100% working condition, it should not be used.

Stabilizing the vehicle

The process of blocking the tires from rolling forward or backward and ensuring a stable vehicle for applying the Hi-Lift Jack is called “chock and block.”

A chock is a tapered block for securing an object and rendering it stationary. It is also used to prevent the movement of the steering wheel. Ensure that the wheel with the choke should be on the opposite side of the vehicle that is being raised.

Blocking the object means to stabilize and support the side of the object being hoisted.

Remember, the jack is not for stabilizing the object!

Placing the Hi-Lift Jack

  • Chock and block the vehicle to prevent it from shifting or rolling as it is being lifted.
  • The jack’s support plate should be placed on a dry, level, and firm surface. Its steel standard bar should be facing upwards.
  • The reversing latch should be lifted until it fastens in the “up” position.
  • The handle clip spring needs to be released by pulling the handle off the steel standard bar.
  • Hold the handle socket and lift the raising mechanism till the large runner is totally and securely beneath the weight.
  • Clasp the handle with both the hands. Pump it up and down to hoist the weight. Don’t attach any extensions to the handle.
  • Keep a close watch on the jack and the weight. If any one of the two moves, stop. Resume the process only when the issue is resolved and it is safe to do so.
  • Once the weight is raised to the required level, clip the handle to the steel standard bar in an upright position.
  • Block the raised weight securely.
  • The weight should be then lowered on the blocks.
  • Once the weight is stabilized, the jack can be removed from underneath.

Caution to Be exercised while using the Hi-Lift Jack

The first and the foremost warning is that the Jack is NOT to be used as a way to block or support the weight.

Using the jack on vehicle bumpers may cause the car to slip off the jack and fall. This could result in serious injuries or worse. Products like Lift-Mate or Bumper Lift should be used in such cases.

Use tow straps or chains when the jack is being used as a winch. Ensure that the chains can pull more weight than the one being lifted. Otherwise, if the weight shifts even slightly, there are chances of chains snapping and causing an accident.

If the handle of the jack moves suddenly, it can cause the user being stuck and getting injured. Ensure your head is not in the handle’s path!

Maximum support provided

  • Like a winch, the jack can support a maximum weight of 2.5 tons.
  • As a clamp, it can hold up to 0.375 tons of weight.
  • DO NOT try to push for more weight. It can cause the jack to slip or clamps to break, causing serious repercussions.

In the end

The user needs to be careful about his safety while using the jack as well while maintaining it.

For any heavy-duty situation, the Hi-Lift Jack is the perfect solution!

Leave a Comment

Your email address will not be published. Required fields are marked *