Scissor car jacks are a safe and easy way to lift your car for repairs or maintenance. They are lightweight and portable, making them a convenient option for home use. In this article, we will provide you with a step-by-step guide on how to use a scissor car jack safely and effectively.
First, you will need to locate a suitable jack point on your car. This is typically a reinforced section of the frame that is designed to support the weight of the vehicle. Once you have located the jack point, place the scissor jack next to it and make sure that the base of the jack is stable on the ground. Next, pump the handle of the jack to raise the car. Be sure to pump the handle slowly and evenly to avoid damaging the jack or the car. Continue pumping the handle until the car is raised to the desired height.
Once the car is raised, you can proceed with your repairs or maintenance. Be sure to use jack stands to support the car while you are working on it. This will help to prevent the car from falling if the jack fails. When you are finished, simply lower the car by opening the release valve on the jack. Once the car is fully lowered, remove the jack and store it in a safe place. By following these steps, you can safely and easily use a scissor car jack to lift your car for repairs or maintenance.
Understanding the Scissor Jack
The scissor jack is a simple yet versatile tool designed to raise vehicles for maintenance or repairs. It consists of two scissor-like arms connected by a central pivot point and a lifting screw. Here’s a detailed breakdown of its components:
- Arms: The two scissor arms, typically made of metal, form the main structure of the jack. They extend and retract using the lifting screw, raising or lowering the vehicle.
- Lifting Screw: The lifting screw, threaded into the central pivot point, is the primary mechanism for adjusting the height of the jack. By turning the screw clockwise, the arms extend, and the jack raises. Turning it counterclockwise retracts the arms, lowering the jack.
- Base Plate: The base plate, usually made of steel or plastic, provides a stable base for the jack. It distributes the weight of the vehicle evenly and prevents it from sinking into soft ground.
- Saddle: The saddle is a flat, typically square or circular surface at the top of the jack. It makes contact with the vehicle’s designated lifting points, providing a stable and secure platform for supporting the weight.
- Handle: The handle, attached to the lifting screw, allows for manual operation of the jack. It can be a lever, a ratchet, or a crank, depending on the specific design of the jack.
Understanding the scissor jack’s components is essential for its safe and effective use. By knowing how each part functions, you can ensure proper installation, adjustment, and operation of the jack for vehicle maintenance and repairs.
Safety Precautions Before Jacking
1. Preparation
Before raising your vehicle, it’s crucial to ensure a stable and secure work surface. Park on a level, hard, non-slippery surface. Engage the parking brake to prevent any accidental movement. Gather all necessary tools, including the scissor jack, lug wrench, and wheel chocks.
2. Selection and Positioning
The most critical safety measure is choosing the correct jack points for your vehicle. Consult your owner’s manual or research specific jack points designed to support the weight of the vehicle. Once identified, place the scissor jack securely at the designated jack point, ensuring it is perpendicular to the ground.
It’s essential to note that some vehicles have multiple jack points. Refer to the table below for common jack point locations on select vehicles:
| Vehicle | Front Jack Points | Rear Jack Points |
|---|---|---|
| Toyota Camry (2018+) | Designated notches on the pinch weld | Behind the front suspension crossmember |
| Honda Accord (2017+) | Marked areas on the pinch weld behind the front wheels | Marked areas on the pinch weld ahead of the rear wheels |
| Ford F-150 (2015+) | Designated frame rails behind the front wheels | Designated frame rails ahead of the rear wheels |
Always double-check that the jack is appropriately positioned to avoid any damage or instability.
Positioning the Scissor Jack
When positioning the scissor jack, it’s crucial to ensure optimal stability and safety. Follow these steps for proper placement:
1. Locate Designated Jack Points
Refer to your vehicle’s owner’s manual to identify designated jack points reinforced to withstand the pressure of lifting. These points are typically located near the wheel wells or under the vehicle’s frame.
2. Clear Debris and Level Surface
Before placing the scissor jack, remove any debris or obstacles under the vehicle. Ensure the ground is level and firm to prevent the jack from sinking or tipping.
3. Position Jack Vertically
Position the scissor jack vertically beneath the designated jack point. Make sure the jack’s base is stable and perpendicular to the ground. Avoid placing the jack on soft or uneven surfaces.
4. Select Appropriate Height
Adjust the height of the scissor jack until the saddle reaches the jack point. The saddle should fit snugly against the vehicle’s frame or designated lifting point. Avoid lifting the vehicle too high as this can compromise stability.
| Jack Position | Description |
|---|---|
| Designated Jack Point | Reinforced location designed for lifting the vehicle. |
| Saddle | Part of the scissor jack that makes contact with the vehicle’s frame or lifting point. |
Lifting the Vehicle Safely
1. Find a Suitable Location
Choose a level, firm surface away from traffic and pedestrians. Park the vehicle on the parking brake, and engage the wheel chocks on the wheels opposite the flat tire.
2. Locate the Jack Points
Refer to your vehicle’s owner’s manual for the designated jack points. These are usually marked with notches or reinforced sections on the frame of the vehicle.
3. Position the Scissor Jack
Place the jack in the designated jack point closest to the flat tire. Ensure the jack’s base is perpendicular to the ground and the jack’s saddle fits securely under the vehicle.
4. Lift the Vehicle
Slowly pump the jack by hand or foot to lift the vehicle. Stop pumping when the flat tire is slightly off the ground, leaving a few inches of clearance.
5. Stabilize the Vehicle (Enhanced Detail)
For added stability, it is crucial to follow these steps:
- Chock the Wheels: Place wheel chocks behind the wheels opposite the flat tire to prevent the vehicle from rolling.
- Jack Stands: If available, use jack stands to support the vehicle’s weight while the scissor jack is in place. This provides redundancy in case the scissor jack fails.
- Check Stability: Gently shake the vehicle to confirm it is stable before moving forward.
- Avoid Prolonged Use: Scissor jacks are not meant for long-term support. Limit their use to changing tires or performing minor maintenance.
Securing the Vehicle
Once the scissor jack is positioned correctly, securing the vehicle is crucial for safety. Follow these detailed steps to ensure stability:
1. Engage the Parking Brake
Activate the parking brake to prevent the vehicle from rolling or slipping.
2. Chock the Wheels
Use wheel chocks or heavy objects to secure the wheels opposite the jacked-up side. This prevents movement in the other direction.
3. Position the Scissor Jack
Place the scissor jack on a stable, flat surface under the designated jack point. Ensure it is perpendicular to the ground and fully extended to support the vehicle’s weight.
4. Raise the Vehicle
Slowly pump the jack to raise the vehicle until the flat tire is just off the ground. Avoid lifting it too high, as this could damage the vehicle.
5. Check the Stability
Once the vehicle is raised, gently shake it to verify that it is stable and secure. If any movement is detected, lower the vehicle and reposition the jack or chocks.
6. Detailed Safety Precautions
- Never work under a vehicle supported only by a scissor jack. Utilize jack stands or other suitable supports for extended periods of maintenance.
- Inspect the scissor jack regularly for any signs of damage or wear. Replace or repair it if necessary.
- Always follow the vehicle manufacturer’s guidelines for jacking points and load capacities. Exceeding these limits can compromise safety.
Lowering the Vehicle
Once the scissor jack is in place, it is time to lower the vehicle. Follow these steps to do so safely:
- Loosen the Lug Nuts: Using a lug wrench, loosen the lug nuts on the tire that is being changed. Do not remove them completely yet.
- Insert the Jack Handle: Insert the jack handle into the designated slot on the scissor jack.
- Position Yourself: Stand to the side of the vehicle, facing the scissor jack. Keep your feet planted firmly on the ground for stability.
- Pump the Jack: Slowly pump the jack handle up and down to raise the vehicle. Continue pumping until the tire is about 6 inches off the ground.
- Remove the Lug Nuts: Once the tire is high enough, remove the lug nuts completely by hand.
- Pull the Tire Off: Grip the tire firmly and pull it straight toward you to remove it from the wheelbase.
- Mount the Spare Tire: Align the spare tire with the wheelbase and carefully lift it into place. Hand-tighten the lug nuts onto the bolts.
- Lower the Vehicle: Slowly lower the vehicle by pumping the jack handle in reverse. As the vehicle descends, tighten the lug nuts further using the lug wrench.
- Tighten the Lug Nuts: Once the vehicle is fully lowered, use the lug wrench to fully tighten the lug nuts in a star pattern. Ensure they are adequately tightened.
- Remove the Jack: Once the lug nuts are tightened, remove the scissor jack from under the vehicle.
Removing the Scissor Jack
Once the vehicle has been lifted and the work has been completed, it is important to remove the scissor jack safely to prevent any injuries or damage to the vehicle.
To remove the scissor jack, follow these steps:
1. Slowly lower the vehicle by turning the release valve on the jack clockwise.
2. Once the vehicle is close to the ground, use your hands or a block of wood to gently push the scissor jack away from the vehicle.
3. Continue lowering the vehicle until it is fully on the ground.
4. Remove the scissor jack from the vehicle completely.
5. Stow the scissor jack in the designated storage area in the vehicle.
6. Inspect the scissor jack for any damage or wear and tear.
7. If the scissor jack is damaged or worn, do not use it and replace it with a new one.
8. It is recommended to consult the vehicle’s owner’s manual for specific instructions and safety precautions related to using the scissor jack. The manual will provide detailed information on the jack’s location, how to properly position it under the vehicle, and how to safely operate and remove the jack.
Storing the Scissor Jack Properly
To ensure the longevity and proper functioning of your scissor jack, it is crucial to store it appropriately. Here are some detailed steps to guide you:
1. Clean and Dry
After using the scissor jack, thoroughly clean it to remove any dirt, debris, or moisture. Use a dry cloth to wipe it down and allow it to dry completely.
2. Lubricate the Moving Parts
Apply a thin layer of lubricant to all the moving parts of the scissor jack, such as the hinges and threads. This will help prevent rust and ensure smooth operation.
3. Fold the Jack Correctly
Fold the scissor jack back to its original compact position. Ensure that the locking pin is fully engaged to secure the jack.
4. Use a Protective Case
If possible, store the scissor jack in a protective case or bag. This will prevent it from becoming damaged or scratched during transportation or storage.
5. Choose a Dry and Secure Location
Store the scissor jack in a dry and secure location, such as a garage or storage cupboard. Avoid storing it in damp or humid environments.
6. Keep Away from Heat
Do not store the scissor jack near heat sources, such as a furnace or wood stove. High temperatures can damage the jack’s components.
7. Inspect Regularly
Periodically inspect the scissor jack for any damage, corrosion, or other issues. Address any problems promptly to maintain its functionality.
8. Keep the Instructions Manual
Keep the scissor jack’s instructions manual nearby for easy reference. It may contain important information regarding proper use and storage.
9. Additional Precautions
Consider the following additional precautions to ensure the safe and proper storage of your scissor jack:
- Store the jack vertically to prevent any accidental releases.
- Secure the jack with a strap or bungee cord if necessary.
- Keep the area around the jack clear of obstructions to prevent any tripping hazards.
- Avoid storing the jack on uneven surfaces to prevent it from rolling or falling.
- Park your car on a flat, level surface.
- Engage the parking brake.
- Locate the designated jack points on your car’s frame. Refer to your owner’s manual to identify the correct jack points.
- Place the scissor car jack in the designated jack point and make sure it is centered.
- Slowly pump the scissor car jack by using the handle or lever provided.
- Continue pumping until the car is lifted to the desired height.
- Once the car is lifted, place jack stands under the car to support it and keep it stable.
- Lower the scissor car jack by slowly releasing the pressure on the handle or lever.
- Once the car is lowered, remove the scissor car jack and jack stands.
By following these guidelines, you can ensure that your scissor jack remains in good condition and ready for use when needed.
Maintenance and Inspection Tips
1. Clean and Lubricate: Regularly clean the scissor jack and any moving parts with a cloth and lubricant to prevent rust and ensure smooth operation.
2. Check for Loose Bolts: Tighten any loose bolts or screws to prevent the jack from wobbling or becoming unstable.
3. Inspect Welds: Examine the welds on the scissor jack for any cracks or damage. If found, do not use the jack and have it repaired by a professional.
4. Test Regularly: Perform a test lift with the scissor jack to ensure it operates smoothly and lifts the vehicle safely.
5. Store Properly: Store the scissor jack in a dry place to prevent moisture damage. Do not expose it to extreme temperatures.
6. Follow Manufacturer Guidelines: Refer to the manufacturer’s instructions for proper maintenance and use to ensure the jack’s optimal performance.
7. Avoid Overloading: Do not exceed the weight capacity of the scissor jack. Overloading can damage the jack or cause it to fail.
8. Use Support Blocks: Place support blocks or wheel chocks behind the wheels that are not being lifted to prevent the vehicle from rolling while being lifted.
9. Position Jack Correctly: Place the scissor jack at the designated jack points on the vehicle’s frame to ensure stability and prevent damage to the car’s body.
10. Inspections: Perform thorough inspections of the scissor jack before each use, paying particular attention to:
| Component | Inspection Points |
|---|---|
| Base: | Check for cracks, dents, or deformities. |
| Scissors: | Examine for smooth movement, no binding or sticking. |
| Gears: | Inspect for wear, damage, or excessive backlash. |
| Pins and Bolts: | Ensure they are tight and secure, without any looseness or corrosion. |
| Handle: | Check for stability, no wobbling or bending. |
| Pump: | Test for smooth operation and no leaks or air bubbles. |
| Relief Valve: | Verify its functionality by slowly lowering the vehicle. |
How to Use a Scissor Car Jack
A scissor car jack is a convenient and portable tool that can be used to lift your car for maintenance or repairs. It’s important to use a scissor car jack safely and correctly to avoid injury or damage to your car.
Here are the steps on how to use a scissor car jack:
People Also Ask About How to Use Scissor Car Jack
How do I know if my scissor car jack is safe to use?
Inspect the scissor car jack before each use. Look for any cracks, bends, or other damage. If you find any damage, do not use the jack.
What is the maximum weight capacity of a scissor car jack?
The maximum weight capacity of a scissor car jack varies depending on the model. It is important to check the manufacturer’s specifications before using the jack.
How do I store a scissor car jack?
Store the scissor car jack in a dry, cool place. Make sure it is protected from moisture and dust.
