A floor jack is perhaps one of the most frequently used pieces of equipment in any garage or workshop. From changing a tire on a car, to repairing brakes on a vehicle, or just inspecting undercarriage components, there is usually the need to use some form of lifting equipment in order to do the job efficiently. These machines play an incredibly important role to the success of a variety of mechanical tasks and if not used with the proper techniques can result in damaging the vehicle and even putting the individual using it at risk. In order to minimize the potential for mistake, it is vital that all safe lifting practices are adhered to.
Knowing the most common mistakes made with a floor jack is crucial in order to protect the safety of the vehicle, the safety of the lifting equipment and first and foremost the safety of the user.
1. Lifting from the Wrong Jack Point
The most common and most expensive mistake is placing the jack under the wrong part of the car.
Hydraulic lift equipment should always be used with caution and in accordance with recommended procedures. On modern vehicles there are specifically designated lifting points on the frame or on the pinch welds. Lifting from:
- Floor panels
- Suspension components
- Engine oil pans
- Plastic underbody shields
can bend structural parts or crack components.
Lift points ? Check your owners manual to confirm the approved locations on your vehicle.
2. Ignoring Load Capacity
Not all floor jacks are created equal. Using a jack that is not rated for the weight of your car can result in:
- Frame stress
- Hydraulic failure
- Sudden collapse
For example:
- Sedans typically require a 2-ton jack
- SUVs and light trucks often need a 3-ton jack or higher
- Heavier vehicles may require a specialized truck jack
Check your vehicle’s gross weight rating before selecting lifting equipment.
3. Lifting on an Uneven Surface
Attempting to lift a vehicle on:
- Gravel
- Sloped driveways
- Soft soil
- Uneven concrete
lifting an odd shape can cause instability. Try to lift it without moving more than a inch or so — even small movement in the wrong direction can shift the center of gravity and cause you to tip over.
✅ Always use a flat, solid surface – preferably reinforced concrete – for safe lifting.
4. Not Using Jack Stands
A floor jack is made for lifting a car, not for supporting the weight of the car.
Using only hydraulic pressure to lift a vehicle while working underneath is extremely hazardous. Hydraulic systems can fail as a result of:
- Seal wear
- Pressure loss
- Internal leaks
After lifting, always position jack stands under rated support points before performing any repairs.
5. Lifting Too Quickly
Rapid pumping or sudden lifting can:
- Shift vehicle balance
- Misalign the jack saddle
- Cause the vehicle to tilt
Slow, controlled lifting ensures stable weight distribution and reduces structural strain.
6. Poor Jack Placement Alignment
The jack saddle must sit centered under the lift point. If the saddle is not centered, it may catch on edges of the lift point and cause injury while attempting to secure the load, or it may reduce the stability of the load and make it difficult to maneuver while moving it to the desired location.
- Slip during lifting
- Damage the frame
- Cause uneven elevation
Before pumping, double-check alignment from multiple angles.
7. Skipping Routine Jack Maintenance
Hydraulic floor jacks can fail at the worst possible moment if not properly maintained. Some of the common maintenance issues with hydraulic floor jacks include:
- Low hydraulic fluid
- Air in the system
- Rusted wheels or casters
- Worn seals
Regular checking and maintenance will lengthen the life of the plant and significantly reduce the chances of breakdown.
8. Lifting the Entire Vehicle Improperly
Some users mistakenly lift one corner too high, or lift the entire vehicle without adequate preparation. Improper lifting sequence may cause:
- Twist the chassis
- Stress suspension components
- Shift vehicle balance
If lifting multiple sides, do so gradually and evenly.
9. Not Engaging Safety Precautions
Before lifting:
- Engage the parking brake
- Place wheel chocks on opposite wheels
- Turn off the engine
- Remove heavy cargo if possible
Neglecting these steps increases the chance of rolling or imbalance.
10. Using the Wrong Type of Jack
Not all lifting tools are interchangeable. For example:
- Low-profile cars require low-clearance jacks
- Heavy-duty vehicles need higher capacity systems
- Commercial settings may require reinforced equipment
It is very important to choose the correct type of floor jack to avoid any potential damage to the vehicle or overloading the jack itself.
Why Proper Floor Jack Use Matters
Vibration in the frame caused by mismatched lifting points Stress to suspension and steering components Failure of bracket or mount on the vehicle caused by poor lifting technique Damage to radiators, batteries, hydraulic pumps and other components in the undercarriage
- Bent pinch welds
- Cracked weld joints
- Damaged suspension mounts
- Alignment issues
- Long-term structural problems
Repairing structural damage caused by using inappropriate or poor quality lifting equipment can be extremely costly.
Final Thoughts
A floor jack, when used properly, can be a very powerful and valuable piece of equipment. The majority of damage to vehicles is not a result of the quality of the piece of equipment, but from the way it is used, overloaded, and or lack of proper safety precautions.
It’s quite common for individuals to commit these same mistakes time and time again when attempting to lift their vehicles for repairs. It’s not uncommon to find damaged vehicles due to poor lifting practices, especially if proper safety procedures are not taken. Not only can a poorly maintained vehicle pose a risk to you and others on the road, but poor lifting techniques can also create additional hassles when trying to perform repairs. For example, if a wheel is off by even a centimeter, it can make it very difficult to change the tire later on. Modern tire designs with stiffer sidewalls and lower profiles are especially sensitive to misalignment. For these reasons, it’s vital that you take the necessary precautions and follow the proper procedures for lifting and supporting a vehicle. Even when following proper lifting procedures, errors can still be made if a poor quality lift or accessories are used. If you’re looking for reliable and durable equipment for your own home garage or in your commercial shop, try out some of the Stan Design products, and you’ll see a big improvement in the way you’re able to work on your vehicle.