Incorrect Selection of Jack Support Points in Automotive Lifting
The correct placement of jack support points is critical for ensuring safety, stability, and proper load distribution during vehicle lifting. Using an improper support point can lead to vehicle damage, equipment failure, or operator injury.
1. Causes of Incorrect Support Point Selection
Lack of Knowledge: Operators unfamiliar with the vehicle’s chassis structure or lifting guidelines may choose unsafe points.
Ignoring Manufacturer Guidelines: Failure to consult the owner’s manual or manufacturer’s instructions can result in improper positioning.
Rushed or Improper Setup: In a hurry, operators may place the jack under convenient but structurally weak areas.
Use of Generic Lifting Guides: Non-specific lifting charts or tools that do not match the vehicle model can lead to errors.
2. Consequences of Incorrect Support Point Use
Vehicle Damage: Placing the jack under non-reinforced areas can dent, crack, or deform the chassis, body panels, or suspension components.
Reduced Stability: Incorrect support points increase the likelihood of the vehicle slipping or tipping during lifting.
Jack or Block Damage: Uneven or off-center loads may overload the jack or support block, leading to deformation or failure.
Safety Hazards: Operator injury risk rises significantly when lifting is performed at improper points.
3. Preventive Measures
Consult Manufacturer Guidelines: Always refer to the vehicle manual for designated jack points.
Use Proper Lifting Tools: Employ jacks and support blocks compatible with the vehicle’s weight and chassis design.
Operator Training: Train personnel on identifying safe lifting points and proper jack placement techniques.
Inspection Before Lifting: Ensure the selected point is clean, solid, and free of obstructions before lifting.
Use Alignment Indicators: Some jacks provide markings or guides to help place the support correctly.
4. Conclusion
Incorrect selection of jack support points in automotive lifting can cause vehicle damage, reduced stability, equipment failure, and safety hazards. Adhering to manufacturer guidelines, using appropriate lifting tools, and training operators are essential to prevent accidents and ensure safe lifting operations.
References
Gent, A. N. Engineering with Rubber: How to Design Rubber Components. Hanser Publishers, 2012.
ASTM D2000 – Standard Classification System for Rubber Products in Automotive and Industrial Applications.
Lake, G. J. “Fatigue and Fracture of Elastomers.” Rubber Chemistry and Technology, 2000.
ISO 7619-1 – Rubber, Vulcanized or Thermoplastic — Determination of Indentation Hardness.
ISO 2230 – Rubber Products—Guidelines for Storage and Maintenance.
