Free jack

Types of Free Jack

A free jack is a lifting tool used in various industries for hoisting or lifting heavy loads. The load capacity of jacks varies, with some capable of lifting weights of up to 30 tons or more. A free jack is used in applications where a standard jack cannot be used, such as on construction sites where there is a lack of space. The free jack has various types, including:

• Electric Jack

  The electric jack, also known as the electric car jack, is a jack that uses electricity to lift vehicles. This jack is very useful when changing tires on cars or trucks. Because it uses electricity, the electric jack can lift a vehicle in a matter of seconds or minutes. There are two types of electric jacks: the portable and the standard electric jack. The portable electric jack is lightweight and can be carried around in the vehicle. The standard electric jack is mounted on the vehicle.

• Hydraulic Jack

  The hydraulic jack uses hydraulic power to lift heavy loads. The hydraulic jack has two basic types: the bottle jack and the floor jack. The bottle jack is shaped like a bottle and is easy to carry around. The floor jack gets its name from its design; it is designed to be used on the floor. A hydraulic jack can lift loads of up to 50 tons.

• Scissor Jack

  The scissor jack is operated manually. It uses a crank handle or a wrench to lift loads. The lifting capacity of a scissor jack is between 1 ton to 2 tons.

• Ratchet Jack

  The ratchet jack uses a ratchet mechanism to lift loads. It can be operated manually or electrically. The lifting capacity of a ratchet jack is between 1 ton to 5 tons.

• Free-Wheel Jack

  The free-wheel jack is a hydraulic jack that can be rotated 360 degrees. The free-wheel jack makes it easy to lift loads in tight spaces, as it can be rotated to any angle. The free-wheel jack is very useful in construction, warehouse, manufacturing, and other industries.

Specification and Maintenance of Free Jack

There are several specifications to consider when buying a free jack, including the lifting capacity, lifting height, and product dimensions:

• Capacity

  This refers to the maximum weight the free jack can lift. Buyers will find free jacks with different capacities that can handle various loads. Ideally, the capacity of a free jack should exceed the weight of the vehicle to ensure safety. The capacity for a 2-ton free jack is 2000 kg.

• Height

  Height is the maximum and minimum height a free jack can reach. The minimum height allows users to position the jack under the vehicle easily, while the maximum height enables users to lift the vehicle to a safe height, allowing for adequate clearance and space for repairs or inspections. For instance, a free jack with a minimum height of 100 mm and a maximum height of 500 mm will be suitable for small vehicles.

• Weight

  Free jacks come in different weights. A heavier jack can be more stable and durable but will be less portable. Lighter jacks are portable but may lack stability.

• Length

  Length affects the free jack's compatibility with various vehicles and its ability to reach specific jacking points. A long free jack can provide stability, while a shorter jack can be more portable.

Maintaining a free jack is essential to ensure safety and effectiveness. Here are some maintenance tips:

• Regular Inspection

  Carry out regular inspections to look for signs of wear and damage, such as cracks, dents, or rust. The free jack should be in good condition to ensure safety during vehicle lifting.

• Cleanliness

  Keep the free jack clean and free of debris, oil, and dirt. A contaminated jack may not function properly and can pose safety risks.

• Lubrication

  Regularly lubricate all moving parts of the free jack with the right lubricant to reduce friction and wear and tear. Users should follow the manufacturer's instructions to know the right lubrication intervals.

• Correct Use

  Always use the free jack correctly, following the manufacturer's instructions. Users should not exceed the free jack’s lifting capacity. Incorrect use can damage the jack and pose safety risks.

How to choose free jacks

Choosing the right free jack for a specific purpose can be a daunting task. Here are some factors to consider when choosing a free jack:

• Capacity

  Free jacks have different weight capacities. Consider the weight of the vehicles or equipment that will be raised. Choose a jack that has a lifting capacity that surpasses the weight of the load to ensure safety and prevent damage to the jack.

• Lifting Height and Range

  Different jacks have varying lifting heights. Consider the height of the vehicles to be lifted and choose a jack that has a lifting height that accommodates the vehicle.

• Stability and Safety Features

  Choose a free jack that has safety features like safety locks and load stops. The features improve stability and prevent accidents. Also, consider the base size of the jack. A larger jack base provides stability and prevents tipping when lifting a load.

• Construction Material

  Free jacks are constructed using different materials like steel or aluminum. Jacks that are made of steel are more durable and suitable for heavy-duty applications. Jacks that are made of aluminum are portable and lighter.

• Portability

  If the jack is to be used in different locations, choose a free jack that is lightweight and has wheels for easy movement.

• Ease of Use

  Consider the mechanism used to lift the load. Jacks that have a manual mechanism are more difficult to use compared to hydraulic or electric jacks. Choose a free jack that has a lifting mechanism that is easy to operate.

How to DIY and Replace of Free Jack

Many businesses might worry about their car jack breaking down. However, with the right tools and knowledge, DIY replacement of a free jack is possible. Here are some tips on how to do it:

Firstly, get the right tools needed to fix a free jack. This includes a repair kit, wrench set, screwdriver set, and safety gloves. Once the tools are at hand, read the manufacturer's manual to understand the jack model and the needed replacement parts.

After that, disassemble the jack carefully using the screwdriver and wrench. Clean the inside parts to get rid of dust and dirt. Once the parts are clean, inspect them to see which part needs replacement. It could be the pump piston, valve, or any other part.

Replace the damaged part with the available replacement part from the repair kit. Ensure that it fits well to avoid future free jack failures. After replacing the part, perform a pressure test to ensure that the jack is working and the safety measures are in place.

Another alternative for DIY replacement is to seek professional help. Some repair shops offer mobile services and can come to the site where the free jack needs repair.

Q and A

Q1: How do you ensure safety when using a jack?

A1: Always read the instruction manual, inspect the jack before use, and ensure it is on a stable surface. Never work under a lifted vehicle without proper jack stands.

Q2: Can a jack be used on all vehicles?

A2: Jacks are used on most vehicles, but the jack's type and size must be suitable for the vehicle's weight and design.

Q3: What should I do if my jack does not lift properly?

A3: Inspect the jack for any visible damage or wear. Ensure it is filled with the correct hydraulic fluid. If the problem persists, consult the manufacturer or a professional repair service.

Q4: What is the difference between a bottle jack and a frame jack?

A4: A bottle jack is a compact, cylindrical hydraulic jack, while a frame jack is designed to lift vehicles at specific points along the vehicle's frame. The bottle jack is more common for lifting tasks like changing a tire.

Q5: Can a free jack lift a heavy truck?

A5: Only jacks specifically designed for heavy-duty applications, such as a heavy-duty hydraulic jack, can lift a free jack. Always choose a jack suitable for the task to ensure safety and efficiency.