Vehicle Lift Safety - PowerPoint PPT Presentation

View by Category
About This Presentation
Title:

Vehicle Lift Safety

Description:

Vehicle Lift Safety Operator s Instruction, Inspection & Maintenance Why we need Lift Safety To prevent injury and death Because it s the law Majority of ... – PowerPoint PPT presentation

Number of Views:1129
Avg rating:3.0/5.0
Slides: 71
Provided by: AaronC54
Learn more at: http://elearningzoom.com
Category:
Tags: lift | safety | vehicle

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Vehicle Lift Safety


1
Vehicle Lift Safety
  • Operators Instruction, Inspection Maintenance

2
Why we need Lift Safety
  • To prevent injury and death
  • Because its the law
  • Majority of accidents are operator error
  • To get respect and maintain respect for the lift
  • Accidents are becoming more common
  • YOU HAVE A FEW THOUSAND LBS OVER YOUR HEAD

3
Types of Lifts
  • Surface Mount
  • 2 Post
  • 4 Post
  • Parallelogram
  • Scissor
  • Mid-rise
  • Mobile Column
  • In ground
  • Single Post with swing arms
  • Dual Post with swing arms
  • Fore and Aft
  • Single-double-triple
  • Adjustable Posts

4
(No Transcript)
5
Lift Descriptions-2 Post Lifts
  • Most popular
  • Inexpensive
  • Easy access to removable parts on vehicles

6
2 Post Lift Types
  • Cable Equalized
  • Hydraulic Equalized
  • Chain Equalized
  • Lift Cable (One Cylinder)
  • Mechanical (Screw Type)
  • Overhead Beam
  • Base Plate Bump-over

7
Cable / chain equalized
  • Cables / chain are attached from the top of one
    carriage to the bottom of the other
  • Properly adjusted the cables / chain, force the
    lift to raise and lower equally even if the
    weight differs from side to side
  • Many moving parts
  • High Maintenance design
  • Most popular 2 post design
  • Animation courtesy of Girolift USA
    www.girolift.net

8
Hydraulic Synchronized
  • Fluid on top side of main ram flows to offside
    ram in a closed hydraulic system (blue)
  • Power unit pumps oil into the bottom of main side
    cylinder
  • Rams are different in size and mathematically
    designed to distribute the exact amount of fluid
    to raise both sides equally
  • Low maintenance design
  • Very few moving parts
  • Animation courtesy of Girolift USA
    www.girolift.net

9
Symmetric Lifts
  • Symmetric
  • Posts are parallel
  • Arms are usually the same length
  • Cars centre of gravity is positioned
    approximately at midpoint of the lift

10
Asymmetric
  • Asymmetric
  • Posts are tilted approximately 30degrees for
    easier access to car doors
  • Short arms in the front
  • Cars center of gravity is positioned further
    rear

11
Safety Features of 2 Posts
  1. Owners Manual
  2. ALI Literature, Lifting point guide, ANSI/ALI
    ALOIM Current Standard, Lifting it Right
  3. Locking Latches
  4. Arm Restraints
  5. Overhead Limit Switch
  6. Emergency Electrical Shut-off
  7. Pressure Relief Valve
  8. Hydraulic Fuse

12
Owners Manual
  • Should be present when lift is delivered
  • Has manufacturer contact information
  • Has proper maintenance procedures
  • Shows parts list and operation procedures
  • To be READ! from cover to cover
  • Any question you have with the content of the
    manual or the lift can be answered by the
    manufacturer.

13
WHAT IS A.L.I.
  • The Automotive Lift Institute, Inc.
  • ALIs mission is to promote the safe design,
    construction, installation, service, and use of
    automotive lifts.
  • ALI has set the standard for automotive lift
    manufacturers
  • ALI certifies the construction of lifts
  • The only specialized organization of its kind
  • For more info Visit www.autolift.org

14
The ALI Gold Label
  • Certified Automotive Lift
  • ETL Listed
  • Conforms to ANSI/UL Standards
  • 3rd Party Tested
  • Manufacturer is a ALI Member

15
ALI Literature
  • ANSI/ALI ALOIM (current) The standard for
    Automotive lifts
  • Safety requirements For The Operation, Inspection
    And Maintenance

16
ALI Literature
  • Vehicle Lifting Points (Current)
  • Quick Reference Guide
  • Too be used to look up proper lifting points for
    frame engaging lifts

17
ALI Literature
  • Lifting It Right
  • A Safety manual from the Automotive Lift
    Institute
  • Describes types of lifts
  • Properly spotting a vehicle
  • Safety procedures

18
ALI Literature
  • Automotive Lift Safety Tips Placard
  • To be posted on every lift where the operator can
    see them.
  • Generic list of safety tips for use with all
    Automotive lifts

19
ALI Literature
  • Safety Decal
  • Used to illustrate hazards
  • To be placed in a spot where it is visible to the
    operator

20
Description of Safety Features for 2 Post Lifts
  • Locking Latches
  • A mechanical device that latches the lifting
    carriage to the post by using a spring loaded
    locking dog and locking ladder
  • A Load holding device
  • Not a back-up in case of failure

To be used EVERY time the hoist goes up
21
Description of Safety Features for 2 Post Lifts
  • Arm Restraints (Not A Arm Lock)
  • Designed to hold the arm in place before it makes
    contact with the vehicle (not to hold the arm out
    when the vehicles weight is on it).
  • An Arm Restraints job is over when the lift makes
    contact with the vehicle

22
Description of Safety Features for 2 Post Lifts
  • Overhead Limit Switch
  • Will shut the hoist off when the roof of the
    vehicle makes contact with it.
  • Do not rely on it to determine when to stop or
    use as an automatic stop

23
Description of Safety Features for 2 Post Lifts
  • Emergency Electrical Shut-off / Disconnect
  • Should be a twist plug connection or switch /
    breaker within reach of the operator

24
Description of Safety Features for 2 Post Lifts
  • Pressure Relief Valve
  • Located within the power unit
  • Factory set to bypass when you over exceed the
    lifts weight limit
  • Not to be relied on as a capacity gage
  • A Power unit is NOT a load holding device. A
    power unit it used to raise the lift. The locking
    latches are used to load hold.

25
Description of Safety Features for 2 Post Lifts
  • Hydraulic Fuse
  • Normally located at the base of the cylinder
  • Designed to lock out its device when there is a
    sudden spike in pressure

26
(No Transcript)
27
Lift Descriptions-4 Post
  • Runways (no arms)
  • Can be equipped with rolling jacks
  • Used mainly for Alignments, Undercoating, Oil
    Changes

28
Types of 4 Post Lifts
  • Chain Lift
  • Cable Lift
  • Fully Hydraulic

29
Safety Features of 4 Posts
  • Owners Manual
  • ALI Literature
  • Primary Locking Latches
  • Secondary Locking Latches
  • Wheel chocks
  • Emergency Electrical Shut-Off
  • Pressure Relief Valve
  • Hydraulic Fuse

30
Description of Safety Features for 4 Posts
  • Primary Locking Latches
  • Usually one on each post
  • Normally single point release (air activated)
  • Not to be used every time the hoist goes up

31
Description of Safety Features for 4 Posts
  • Secondary Locking Latches
  • Equipped on most 4 posts
  • Will engage if chain or cable becomes slack
  • Wheel chocks
  • to prevent vehicle rolling. To be used in sets
    of two every time a vehicle is placed on a lift
    using runways

32
Description of Safety Features for 4 Posts
  • Emergency Electrical Shut-Off
  • Pressure Relief Valve
  • Hydraulic Fuse
  • Same descriptions as for the 2 Post

33
Description of Safety Features for 4 Post Lifts
  • Emergency Electrical Shut-off / Disconnect
  • Should be a twist plug connection or switch /
    breaker within reach of the operator

34
Description of Safety Features for 4 Post Lifts
  • Pressure Relief Valve
  • Located within the power unit
  • Factory set to bypass when you over exceed the
    lifts weight limit
  • Not to be relied on as a capacity gauge
  • Is the power unit on your lift its original?

35
Description of Safety Features for 4 Post Lifts
  • Hydraulic Fuse
  • Normally located at the base of the cylinder
  • Designed to lock out its device when there is a
    sudden spike in pressure

36
(No Transcript)
37
Lift Descriptions-Scissor Lifts, Parallelogram,
Mid-Rise
  • Low maintenance
  • Good for heavy lifting
  • Used for alignments, lube rack, undercoating
  • Can be equipped with rolling jacks
  • Usually has one cylinder on each side

38
Lift Descriptions-Scissor Lifts, Parallelogram,
Mid-Rise
  • Scissor lift lifts straight
  • Parallelogram lifts up but also moves back or
    forward a couple of feet

39
Safety Features of Scissor Lifts, Parallelogram,
Mid-Rise
  • Locking Latches located on the floor with a foot
    pedal release and / or air/electrical operated
    lock release
  • Hydraulic Fuses
  • Equalized hydraulically / electronically or
    fastened together

40
Mobile Column Lift
41
Lift Descriptions-Mobile Column or
Wheel-Engaging
  • Used for heavy lifting
  • Can be used in sets of 2,4,6 and on
  • Mechanical screw types
  • Fully hydraulic
  • Usually equalized (visually) by the operator

42
Lift Descriptions-In-Ground
  • Used for heavy lifting
  • No obstructions
  • Cleaner shop
  • Low maintenance

43
Safety Features of In-Ground
  • Newer models have locks and non-rotates
  • Locking Latches, manual pin, air/electric/ manual
    operated locks, inner safety leg-locking dog
  • Most swing arm models do not have arm restraints

44
Properly Lifting A Vehicle
45
Center of gravity
  • Every vehicle has a different centre of gravity
  • Ex.. rear wheel drive vehicles are heavier in the
    rear this differs the centre of gravity from a
    front wheel drive vehicle
  • Rear wheel drive vehicles centre of gravity is
    usually spotted under the drivers seat where as a
    front wheel drive vehicles centre of gravity is
    usually spotted under the steering wheel
  • The vehicles center of gravity is ALWAYS to be
    spotted midway between the front and rear arms on
    a two post lift.

46
Center Of Gravity
  • The center of gravity of a vehicle with the
    engine in the rear is totally different from a
    vehicle with its engine in the front
  • Always check the trunk of a car or the back of a
    truck or van for a load
  • This Lotus Elise flipped when the tech
    removed its front wheel

47
2 Post Operation
  • Inspect your lift
  • Make sure bay is free of debris, tools
  • Ensure that arms of lift are out of the way
  • Check vehicles weight with hoist capacity
  • Look-up vehicles lifting points
  • If all above is good, drive car into bay

48
2 Post Operation cont
  • Check lifting points to make sure vehicle is in
    good enough condition to be lifted
  • Position all 4 arms on manufacturers lifting
    points. Use adapters if applicable.
  • Raise lift until pads are 1-2 from vehicle
  • Re-check lifting points
  • Lift vehicle until tires are aprox 1 off the
    ground
  • Re-check lifting points
  • Go to back of vehicle and shake moderately

49
2 Post Operation cont
  • Re-check lifting points
  • Raise vehicle to desired working height
  • Lower to Locking Latches (use stands if possible)
  • Perform work
  • If you need to do any heavy pulling, hammering,
    or prying, or if you are removing or installing a
    major component of the vehicle, use appropriately
    rated jack stands.

50
Jack stands / Supports
  • To be used in sets of four whenever possible
  • Make sure stands have a high enough capacity
    rating
  • DO NOT LOWER VEHICLE TO STANDS
  • Always heighten the stands to height of vehicle
    that is currently on the primary safety latches.

51
2 Post Operation cont
  • When job is completed check for tools, debris,
    stands, transmission jacks etc.. left behind
  • Raise lift off latches, release latches, and
    lower the lift
  • Re-position arm to home position
  • Remove or lower adapters if applicable
  • Drive off

52
Maintenance Inspection
53
Maintenance Inspection
  • Your lift has many components to allow it to work
    safely and properly.
  • Knowing these components, inspecting these
    components, and maintaining these components will
    reduce your risk of injury and death.

54
Maintenance Inspection- Components to Check
  • Cables and Chains
  • Check cables for frays, kinks, crushing, bird
    caging, heat damage or rust
  • While wearing a leather glove, run a rag down the
    cable, the rag will grab frays that may not be
    visible to the eye
  • Check end attachments for wear, damage, cracks
    and deformations
  • Equalizing cables have to be adjusted properly.
    With the lift on the locks adjust the cables so
    they are taught and have equal tension on each
    side (locking latches should engage at the same
    time when cables are adjusted properly.
  • Any question consult your lift repair specialist

55
Common Cable Failure
56
Chain (only as strong as the weakest link)
  • Check chains for rust, glazing,
  • cracks, twist, elongation separation
  • Chain wear should be checked where chain runs on
    load sprocket or roller
  • Check the fittings or master links make sure
    fasteners are in place.
  • If you see any wear or have any question Consult
    your lift repair specialist

57
Maintenance Inspection- Components to Check
  • Hydraulics
  • Check hoses, fittings cylinders for leaks, wear
    and cracks
  • Locking Latches
  • Check that they fully engage fully disengage
  • Check for wear and cracks
  • Check their fasteners

58
Maintenance Inspection- Components to Check
  • Arms and Pads
  • All 4 arms are within ½ of being level
  • Check operation of the arm restraints, check for
    wear on gear and teeth
  • Check that the arm limit stops are working (i.e.
    see if they can be pulled out- they shouldnt)
  • Check arm pins for play
  • If equipped with rubber pads check for cuts and
    tears

59
Maintenance Inspection- Components to Check
  • Electrical System
  • Visually check
  • Test that safety shut-off is working
  • Test to ensure overhead limit switch working
  • Anchor
  • Check concrete around bases for cracks
  • Torque anchor bolts to manufactures specs,
    (usually 90-150 ft/lbs)

60
Maintenance Inspection- Components to Check
  • Flashing
  • Check posts for rust or damage (especially at
    bottom of post where water lays)
  • Inspect carriage inside post- slider blocks or
    carriage rollers
  • Check chains, cables, fasteners on each end
  • Hardware
  • Check bolts and fasteners for tightness

61
Maintenance Inspection- Components to Check
  • Power Unit
  • Max out power unit by putting hoist up all the
    way to show oil leaks. (maxing out hydraulic
    system simulates maximum capacity)
  • Make sure you have all literature ex ALI Lifting
    it Right, Lifting points guide, ANSI/ALI ALOIM
    National Standard, ALI Safety Tips placard.
  • Look for capacity rating, safety decals owners
    manual and operator instruction
  • Make sure your lift has been inspected by a lift
    service specialist within the year (minimum)

62
Lowering Speed
  • Restrictions in the lowering valve control the
    lowering speed
  • After you have inspected your lift you can
    position a vehicle on the lift of a appropriate
    weight.
  • To check the lowering speed of your lift raise a
    vehicle to the top of your lifts rise (commonly
    68 or 5 6)
  • It should take 15-20 seconds to lower a vehicle
    from 6
  • The standard lowering speed is 20 feet per second

63
When Should You Inspect Your Lift?
64
When should you inspect your lift?
  • The operator should visually inspect their lift
    every day before lifting a vehicle. Who knows
    what the last mechanic over ridded or jury
    rigged.
  • The operator should document a physical
    inspection weekly
  • The operator will perform monthly maintenance and
    inspection monthly
  • Continued.

65
When should you inspect your lift?
  • Your lift has to be inspected by a qualified lift
    repair specialist yearly in most States and
    Provinces. This is the minimum, semi yearly or
    quarterly is a better practice and becoming more
    and more popular.
  • Make sure your lift service specialist is
  • Factory trained by a major manufacturer make
    them supply certificates
  • Insured usually 2 million liability minimum on
    company and all vehicles
  • In good standing with Workers Compensation Board
    (Canada)
  • Competent and knowledgeable. Your lift repair
    specialist should have all your answers to any
    lift related questions you have.

66
Overview
  • Primary locking latches are to be used every time
    the lift goes up.
  • Vehicle manufacturer recommend lifting points are
    the ONLY lifting points to be used
  • Never over load your lift
  • Never use a damaged lift
  • Never lift a vehicle with someone inside the
    vehicle or someone underneath

67
Overview
  • Never override or jury rig self closing controls
  • Always position vehicles centre of gravity in the
    mid point between two arms
  • Use appropriate rated stands whenever possible
    and ALWAYS when removing / installing major
    vehicle components
  • Proper positioning of pads and adapters is key in
    lifting a vehicle safely and surely
  • GET OUT OF THE WAY if a vehicle is in danger of
    falling

68
Overview
  • Lifts are dangerous pieces of equipment respect
    the maintenance, inspection and operation
    procedures associated with the Manufacturers
    supplied operators manual.
  • Only trained operators are authorized to use
    automotive lifts.

69
Overview
  • If you have paid attention to the course thus far
    you are now knowledgeable about the safety
    devices and maintenance of the most common
    automotive lifts. This is a generic course and
    cannot cover all types and all devices however if
    you have any questions regarding the safety and
    or maintenance of a specific automotive lift
    please contact us from the homepage and we will
    get you the answer you need.

70
Exam
  • You are now ready to write your exam and become a
    trained operator of a automotive lift
  • There will be 25 multiple choice questions
    followed by a short survey
  • You will need a mark of 85 or better to pass the
    exam. If you feel you need to go over the course
    again before you write the test please do so.
    Your confidence in operating and maintaining your
    lift safely is our main concern at
    Autoliftsafety.com
  • GOOD LUCK AND LIFT SAFE!
About PowerShow.com