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Lifting Equipment

Lifting Equipment. Harkness Career Center. Lift Types. Frame-contact lift. Wheel-contact (drive-on) lift. Frame-Contact Lifts “ Two post lift”. Uses air or hydraulic pressure to raise vehicle Mechanical locks protect against hydraulic failure Adapters at the end of adjustable lift arms.

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Lifting Equipment

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  1. Lifting Equipment Harkness Career Center

  2. Lift Types • Frame-contact lift • Wheel-contact (drive-on) lift

  3. Frame-Contact Lifts “Two post lift” • Uses air or hydraulic pressure to raise vehicle • Mechanical locks protect against hydraulic failure • Adapters at the end of adjustable lift arms

  4. Lift adapters contact vehicle frame at specified lift points • Unitized body • -pads contact the pinch welds and the torque boxes • Straight frame • -Pads contact the frame directly

  5. Some adapters adjust to several positions • Lift Pads should • Be apposing each • other

  6. Frame-Contact Lifts • Symmetrical Lift – the arms on the lift are the same length. • Asymmetrical Lift - the arms on the lift are two different lengths.

  7. Wheel-contact Lifts Types scissor types four post

  8. Wheel-contact Lifts • All four wheels supported • Also has mechanical locks • Works well for hard to lift vehicles

  9. Wheel-Free Jacks • Are located in the middle • of the drive on lift • Are used to raise • vehicles off there • wheels • Have mechanical • safety locks • Operate on air and/or • Hydraulic pressure

  10. Wheel-Free Jacks • Picks up one end or both ends of the vehicle • Advantages of wheel contact lifts • Picks up off balanced vehicles safely • Center of underside is accessible • Adjusts to pick up different undercarriage designs • Can be rolled along drive-on ramps

  11. In-Ground Lifts • In-ground, frame-contact lifts are either single post or two post • Two-posts provide better vehicle access • Has safety locks • Are getting more popular • Do not pollute like they used to (hydraulic fluid leakage) • No posts in the way • Easier to get in and out of the car

  12. Lift Safety • When a vehicle falls off a lift, usually due to carelessness, misuse, neglected maintenance

  13. Lift Safety cont. • Pinch Points • Between the lift and the vehicle • Inside the lift posts • Hands must be on the operating handles when operating • NO ONE should be touching the lift when in use

  14. Lift safety cont. • Rear-wheel-drive cars center of gravity is below the drivers seat • Front-wheel-drive cars center of gravity beneath the steering wheel • One- or two-post lifts, position vehicle’s center of gravity over the posts • Four-post models, position car between front and rear

  15. Lift safety cont. Rear-wheel-drive cars center of gravity is below the drivers seat Front-wheel-drive cars center of gravity beneath the steering wheel One- or two-post lifts, position vehicle’s center of gravity over the posts Four-post models, position car between front and rear

  16. Lift safety cont. Never exceed the manufacturers “Maximum Capacity” posted on the lift.

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