Usually, no. A jack stand should not be placed under a control arm unless the vehicle manufacturer specifically identifies that suspension component as a safe support point. The timing matters because the risk changes as soon as the vehicle’s weight transfers from the jack to the stand. Before lifting, the control arm may look thick…
Yes, a 1.5-ton jack can lift some SUVs, but it is not automatically suitable for every SUV or every lifting task. Its 3,000-pound capacity may be enough for one corner of a lightweight crossover, yet the jack can be overloaded if you try to raise the entire vehicle or lift a heavier SUV from an…
A hydraulic jack lifts a heavy load by using fluid pressure to transfer a small input force into a much larger lifting force. Counterintuitively, the jack does not make the load lighter; it multiplies force by applying pressure to a larger piston, while the operator trades force for distance and repeated pumping. This article explains…
A hydraulic jack lifts a vehicle or heavy load by turning a small amount of pumping force into upward movement. To use one safely, place it on firm, level ground, position the saddle at the approved lifting point, raise the load slowly, and support it with properly rated jack stands before working underneath. The method…
Most hydraulic jacks can be restored when the problem is trapped air, low hydraulic oil, a loose release valve, or a worn seal. If the jack is cracked, badly corroded, leaking heavily, or unable to hold a load after basic service, replace it rather than trusting a temporary repair. This article explains the reasons a…
To refill a hydraulic jack, retract the ram completely, remove the oil-fill plug, add the correct hydraulic jack oil to the specified level, and bleed trapped air before testing it. A jack that looks full from the outside may still have low fluid, air in the cylinder, or a leak that makes refilling only a…
To bleed a hydraulic jack, lower it fully, open the release valve, remove the oil filler plug, and pump the handle several times before closing the plug and testing the lift. Repeat the process if the jack still feels spongy, sinks under load, or will not reach its normal height. The detail people commonly miss…
To fill a hydraulic jack, lower the ram completely, remove the oil filler plug, add the manufacturer-specified hydraulic jack oil until it reaches the proper level, then reinstall the plug and bleed trapped air. Do not use ordinary motor oil, brake fluid, or transmission fluid unless the jack manufacturer specifically approves it. That basic procedure…
To lower a hydraulic jack, place it on a stable surface, remove the load only when safe, and slowly turn the release valve counterclockwise. Close the valve before lifting again, and never loosen a hydraulic fitting or force the handle while the jack is supporting a vehicle. A driver may discover the problem in a…
A hydraulic jack is filled through its oil filler plug, usually after the jack is fully lowered and placed on a level surface. Remove the plug, add the correct hydraulic jack oil until it reaches the bottom of the filler opening, then reinstall the plug and bleed trapped air before testing the lift. The job…