Floor Jacks and Stands Harkness Career Center Floor

Floor Jacks and Stands Harkness Career Center

Floor Jacks Parts Identification

Jack Operation • Increase pressure when small piston moves a larger one • Hydraulic jack has a fluid reservoir and two one-way check valves – Twisting the handle controls fluid pressure – Position the jack under the vehicle frame

Floor Jacks • Are used to lift the corner or one side of a vehicle • Has NO safety locks • Vehicles can be rolled on a floor jack • Floor jacks should always be used with jack stands

Jack Stands • Stands have no lifting function • Are used to secure vehicles in the air • Can be height adjusted • Must be used every time with a jack

Shop Crane (Cherry Picker) • Is used to lift engines and heavy items to move them • Has NO safety locks (NEVER GET UNDER ANYTHING LIFTED BY A CRAINE) • Can carry up to 2 tons • Keep loads as low as possible when transporting

Electric/Hydraulic Press • Used to press together parts • Can be capible of 30 to 60 tons of pressure • Can easily bend or shatter metal • Can easily cause damage to parts of personal injury

Engine Stand • Are use to hold engines up for disassembly • Engines must be centered to the mounting flange • The correct mounting bolts a washers must be used • Will allow the engine to be turned

Transmission Jack • Is a tall jack on rollers and an adjustable saddle • Can be air or hydraulic operated • Used to remove fuel tanks, transmissions, differentials from a vehicle on a lift • Can be wobbly when fully extended

Chainfall (chain hoist) • Slide along a beam secured to the ceiling • Has two chains – One to raise and lower – One to pick the weight up • Will lock in place and suspend load