How to Use a Jack Correctly?
4 Answers
The correct steps for using a jack are as follows: 1. Park the car properly and place a safety warning triangle 50 to 150 meters behind the vehicle. Turn off the engine to prevent vibrations from causing the jack to slip. 2. Align the jack with the support point under the car, which should be located according to the manufacturer's markings (near the side skirts). 3. Connect the accompanying wrench and socket to the back of the jack, then rotate it directly to adjust the height. Be careful not to apply excessive force during operation, as this can easily cause the jack to deform.
When I first started driving, I was particularly flustered when using a jack to change a tire. It's essential to park on a completely flat surface; otherwise, the jack can easily slip or the car body may tilt. Pulling the handbrake to lock the wheels is a step that cannot be overlooked. Then, crouch down to look under the car and find the designated lifting point, usually on the hard frame near the wheel. I used my phone's flashlight to illuminate the area before placing the jack in the correct position, ensuring it was fully snug. When cranking the handle, do it slowly—don’t rush—and watch as the car gradually lifts. Raise it just high enough to change the tire; lifting it too high increases the risk. Remember, never linger under the car because the jack can be unstable. I’ve seen beginners hastily crawl under to fix something, only to get hurt when tools tipped over. It’s best to have someone experienced guide you the first time—safety comes first. When lowering the jack after the job, do it gently to avoid letting the tire slam onto the ground. Also, regularly check if the tools in the trunk are complete to avoid scrambling during an unexpected flat tire.
With decades of experience fixing cars myself, using a jack becomes second nature. Park on a firm, level surface and engage the parking brake to secure the vehicle. Locating the proper lift points is crucial—refer to the owner's manual or look for chassis notches. You can use either a scissor jack or hydraulic jack, aligning it correctly before applying even pressure. During lifting, monitor the car's balance and stop immediately if there's any wobbling. Once raised to the desired height, immediately place jack stands or wooden blocks for support—never rely solely on the jack. I must emphasize tool maintenance: regularly lubricate the jack's joints to prevent rust and ensure smoother operation. Also, prioritize daytime work for better visibility and safety. When lowering, turn the handle slowly—no rushing, as sudden slips can be hazardous. Mastering these steps makes the process efficient and effortless.
Using a jack requires serious attention to risks. I always check the ground conditions. Parking on a flat, straight road is safest, and engaging the handbrake prevents accidental movement. Accurately locate the vehicle's chassis lift points; ensure the jack makes stable contact. Operate slowly—never rush lifting or lowering, and keep your eyes on the car at all times. Never work under a vehicle supported only by a jack; always use jack stands for secure stabilization. I've seen roadside accidents where people were injured due to jack slippage, likely caused by soft ground. Operating in good light is wiser. Know your limits—seek professional help if unsure.
