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A trolley jack is a type of hydraulic jack commonly used to lift vehicles for maintenance or repair work.


  1. Hydraulic System: Trolley jacks operate using a hydraulic mechanism. When force is applied to the handle, it pumps hydraulic fluid into a cylinder, causing a piston to rise and lift the vehicle.
  2. Lifting Capacity: Trolley jacks come in various lifting capacities, ranging from a few tons to several tons, depending on the size and weight of the vehicles they are designed to lift.
  3. Swivel Wheels: Trolley jacks are equipped with swivel wheels, allowing them to be easily maneuvered into position under the vehicle.


  1. Portability: Trolley jacks are portable and can be easily moved around the workshop or garage. The swivel wheels facilitate smooth movement even in tight spaces.
  2. Stability: Trolley jacks typically have a wide base and a sturdy construction to provide stability when lifting vehicles. Some models also include additional features like a safety lock to prevent accidental lowering.
  3. Height Adjustment: Many trolley jacks feature a lifting arm that can be adjusted to different heights to accommodate vehicles of varying heights and ground clearance.


  1. Vehicle Maintenance: Trolley jacks are commonly used by mechanics and DIY enthusiasts for tasks such as changing tires, replacing brake pads, or performing undercarriage inspections.
  2. Emergency Situations: Trolley jacks are also useful in emergency situations, such as roadside tire changes or repairs.

Safety Precautions:

  1. Weight Capacity: It’s important to use a trolley jack with a lifting capacity that matches or exceeds the weight of the vehicle being lifted.
  2. Stable Surface: Always use the trolley jack on a stable, level surface to prevent tipping or instability during lifting.
  3. Jack Stands: Once the vehicle is lifted to the desired height, it should be supported by jack stands placed under the chassis for added safety.

A trolley jack is a versatile and essential tool for lifting vehicles during maintenance or repair work. With its hydraulic mechanism, swivel wheels, and adjustable lifting arm, it provides convenience, portability, and stability for a wide range of automotive tasks. When used properly and with appropriate safety precautions, a trolley jack can make vehicle maintenance safer and more efficient for professionals and hobbyists alike.

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