ONLINE selfstudy

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ONLINE self-study

• Boomlift Non-Practical

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Type Scissor/Vertical

• A scissor/vertical lift has a platform that
  CANNOT be positioned completely beyond the base
  and is used to position personnel, necessary
  tools, and materials at elevated work locations.
  Scissor/vertical aerial work platforms are power
  operated (motorized) with primary functions
  controlled from the platform.

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Type Boom Supported

• A boom supported aerial work platform has a
  platform that can be positioned completely beyond
  the base and is used to position personnel,
  necessary tools and materials at elevated work
  locations. Boom supported aerial work platforms
  are power operated (motorized) with primary
  functions controlled from the platform. Examples
  Boomlifts, Aerial lift, Man-lifts, Aerial
  Platforms, Articulated Booms, and Cherry Picker.

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Type Straight Mast Booms

• Seventy-five percent of all boomlifts are of the
  straight mast boomlift type, with a normal load
  capacity of 500 lbs to 1000 lbs. These lifts can
  be powered by gasoline, propane, gas/propane, or
  diesel engines. There are primarily used for
  painting, rough-in construction, electrical
  installations, piping installations, sand
  blasting operations, building maintenance, and
  any other applications where workers and their
  tools need to get up in the air to perform their
  work. It is also referred to as telescopic
  boomlifts.

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Type Articulated Boomlift

• Articulated boomlifts provide the ease to get "up
  and over" obstacles so as to place personnel and
  their tools at specific work locations. The load
  capacities range from 300 lbs to 1000 lbs (UNC's
  articulated boomlift ranges from 500 lbs to 1000
  lbs). Standard platform widths range from 4', 5',
  or 6' (University's is 8'). It can be powered by
  gas, gas/propane, diesel, or electric DC motors.
  Primary use involves industrial equipment
  maintenance, construction applications,
  warehousing and inventory storage, cleaning, etc.

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Employers Responsibilities

• The employer is required to
• provide every employee with training
• maintain the boomlift in a safe operating
  condition
• purchase boomlifts that conform to ANSI and CSA
  standards.

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Boomlift Operators Responsibilities

• The boomlift operator is
• Directly responsible for the safe operation of
  the lift at all times.
• Required to complete a pre-shift inspection of
  the lift and immediately report any problems.
• To ensure all personnel on the platform are
  wearing safety gear, as required, at all times.
• Required to complete a workplace inspection prior
  to lift operation in order to check the work area
  for possible hazards and immediately report any
  problems.

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Required Features

• Each Boomlift is required to have the following
  features
• Upper and lower controls
• Platform that includes guard rail w/toeboard
• A load capacity plate
• Passive (automatic) brake which will hold the
  unit on any slope it is capable of climbing
• An operator's manual
• Emergency stop devices, located at the upper and
  lower control stations, which stop all powered
  functions that affect platform movement

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Parts Overview

• It is imperative to know the correct parts of a
  boomlift. This is very crucial when reporting
  problems.

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Steering Wheels and Axle

• The steering control for the boomlift is located
  at the upper controls. Always make certain you
  re-orient your platform position relative to the
  base. This means the steer and drive functions
  will operate in reverse when the unit's platform
  is not extended over the drive wheels.

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Tires

• There are three possible types of tires for the
  boomlift.
• Pneumatic tires filled with compressed air
• Liquid Filled tires filled with some kind of
  liquid compound instead of air
• Monofilled tires which are filled with a liquid
  compound that solidifies into a solid over time,
  usually from one to three days. The tires will
  not go flat, they are much heavier than air
  filled tires and add to the counter weight system
  of the boomlift.
• If the tires have to be replaced, it must match
  the original in type, tread design, and filling.
  Any variation could cause loss of traction or
  loss of counterbalance which could result in loss
  of control of the boomlift.

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Counterweight System

• The counterweight system includes the
  counterweight itself, the turntable assembly
  (which includes all parts for the motor), the
  structural components (which make up the base
  frame), plus the tires and wheels.
• The center of gravity of the counterweight system
  is utilized to counterbalance the center of
  gravity created by the load of the elevating
  assembly and platform assembly plus the workmen,
  their tools and equipment.
• Simply put, the purpose of the counterweight
  assembly is to keep the boomlift in the upright
  position when the unit is operated according to
  the manufacturer's instructions.
• Remember all aerial work platforms are generally
  intended to be used on a flat level surface!

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Lower (Emergency) Controls
The lower (emergency) controls must be accessible
from the ground level. It is located on or near
the base frame of the unit. Review the operator's
manual to identify the exact location. All of
these controls will be of the type that
automatically returns to the "off" or "neutral"
position when released if they are used to
control any movement of the lift. IMPORTANT NOTE
Lower controls can override the upper controls.

• The Lower controls should only be used during the
  following conditions
• During pre-shift checkout of functions from the
  lower controls.
• To override the upper controls to gain access in
  the event of an emergency. (upper controls will
  not work)
• Only after you have been given permission to
  operate a function by the operator.
• To override the upper controls to gain access in
  the event of an emergency. (upper controls will
  not work)
• By a qualified mechanic during the process of
  performing necessary repairs and/or maintenance
  on the boomlift.

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Platform Overview

• The platform section on the boomlift is equipped
  with many safety features such as guardrails
  (which will be covered under the fall protection
  section). Let's go over a few details concerning
  the platform.

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Platform Section

• The upper control station is located on the
  platform section. It is where all of the
  functional controls for the boomlift can be
  activated. During practical training, the
  controls will be reviewed in detail.

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Platform Section, Cont.

• On the platform section is a deadman safety
  control footswitch. In order to activate any of
  the boomlift upper controls, the deadman safety
  control footswitch must be continually activated
  before the upper controls will function.

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Platform Section, Cont.

• Always consult the load chart indicators prior to
  your loading the platform to make sure you are
  operating the boomlift within its safe operating
  limits.

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Platform Section, Cont.

• Whenever a worker is on the platform section,
  he/she is to remain on the inside of the platform
  with their feet firmly planted as per
  manufacturer's instructions.

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Identify the Boomlift Parts

• It is very important to know the correct part
  names of a boomlift. Click on the numbers to
  check your answers.

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Operating Procedures Overview

• The following sections are important to
  understand before operating a boomlift.
• Center of Gravity
• Fulcrum Point
• Rated Work Load, or Load Capacity Rating
• Center of Gravity
• Sideslope Grade
• We will review each item in more detail.

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Center of Gravity

• The center of gravity of an object is the point
  about which all forces of gravity are equal. As
  the boomlift is operated, the center of gravity
  on a boomlift changes position. Changes occur
  when the platform is moved in or out, up or down,
  forwards or backwards, and rotating left or
  right. Any inclined (sloping or graded) surface
  also affects the combined center of gravity.

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Fulcrum Point

• The Boomlift works on the simple principle of
  loads balanced over a set of two wheels, the
  fulcrum. Depending on which set of tires the
  operator platform is set over, they become the
  fulcrum. The fulcrum point changes as the
  platform is elevating and swinging into position.

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Fulcrum Point on Articulated Booms

• As you raise, lower, extend, swing, or activate
  any boom function the fulcrum point, as well as
  the center of gravity changes as the platform
  changes its position. Sometimes this change is
  little and sometimes the change is a lot. The
  important issue for you to understand and always
  keep in mind as you operate the boomlift, is that
  all of the inter-related boomlift forces are
  always changing.

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Fulcrum Point Example

• Another example of the change in fulcrum point.

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Rated Work Load or Load Capacity Rating
LOAD CAPACITY is a specific load carried at a
specific distance from the fulcrum wheels and
spread evenly over the operator platform.
UNRESTRICTED LOAD CAPACITY is the maximum
allowable weight load allowed in and spread
evenly, over the operator platform.

• Maximum allowable weight load includes personnel,
  their tools and their materials.
• As long as you are (1) within the unrestricted
  load capacity limits, (2) are operating on level
  ground that will support the units weight and (3)
  you employ any necessary safety devices you can
  operate the lift at any height safely.
• Unrestricted rated work load capacity decals will
  always be located at each entrance into the
  platform and at the operator control stations.
  You should always verify these decals are in
  place during your pre-shift inspection.

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Multiple Ratings

• Some boomlifts have multiple ratings. On the
  PLATFORM ELEVATING ASSEMBLY, the multiple rating
  chart will show the alternative configurations of
  elevating assembly retracted versus extended and
  elevated versus lowered.
• ALTERNATIVE RATED WORK LOADS when the rated work
  load of the varying configuration depends on the
  location of the platform in relation to the base,
  the manufacturer shall display the appropriate
  related work load of the configuration of the
  operator at the control station.

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Sideslope and Grade

• Boomlifts are generally intended to be used on a
  flat level surface. The Owner's Manual will tell
  you the limits which will affect the operation of
  your unit.
• Driving on a 15 grade to get to the worksite is
  acceptable but the boomlift should be operated on
  a flat level surface. When traveling over a long
  distance it is advisable to lock the turntable
  (if the boomlift is equipped with one, the
  University's is not equipped with this device),
  keep the boom mast retracted and keep the
  operator platform at or below the horizontal
  position with the ground. Do not drive the
  boomlift on grades or sideslopes exceeding those
  specified on caution placards or indicated in the
  Operator's Manual.

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Safe Operating Practices Overview

• The operation of any boomlift is subject to
  certain hazards that can only be protected
  against by the intelligence, care, and common
  sense of the operator.

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Overhead Hazards

• ASSUME all electrical parts and wiring are
  ENGERGIZED unless known otherwise.
• Avoid contact with 0 to 300V
• Over 300V to 50KV the Minimum Safe Approach
  Distance is 10 feet. The distance increases as
  the voltage increases.
• Trees

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Voltage Chart
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Operating Practices Dos

• Do limit travel speed according to conditions of
  ground surface, congestion of the worksite,
  visibility, slope, grade, location of personnel,
  or any other factors causing hazards of collision
  or injury to personnel.
• Do maintain a clear view of the path of travel
  when elevated.
• Do maintain a safe distance from overhead
  obstacles when elevated.
• Do maintain a safe distance from obstacles,
  debris, drop-offs, holes, depressions, ramps, and
  other possible hazards when elevated.
• Do shutdown and cease operation of the lift in
  the case of any suspected malfunction(s) of the
  unit, or of any potentially hazardous
  conditions(s), or hazardous (environment)
  location(s) which may be encountered. Report the
  potential problem(s) to the appropriate people
  and make sure any problem(s) have been corrected
  before proceeding.
• Do ensure the outriggers, stabilizers, extendible
  axles, or other stability enhancing safety
  devices are used as required by the manufacturer
  of the lift.
• Do make sure all personnel maintain a firm
  footing on the platform floor while working from
  the platform and wear appropriate PPE.
• Do use special precautions when other equipment
  and/or vehicles are present. Warnings such as,
  but not limited to, flags, roped-off areas,
  flashing lights, and barricades shall be used.
• Do take care to prevent rope, electric cords and
  hoses from becoming entangled in the boomlift.
• Do cease operations if the platform or elevating
  assembly becomes caught, snagged or otherwise
  prevented from normal motion by an adjacent
  structure or other obstacles such that control
  reversal does not free the platform. All
  personnel shall be removed from the platform
  before attempts are made to free the platform
  using ground controls.

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Operating Practices Donts

• Don't stunt drive or horseplay.
• Don't use planks, ladders or any other device on
  the boomlift platform to achieve any additional
  height or reach.
• Don't alter or disable any interlock or other
  safety device.
• Don't position the boomlift against another
  object to "steady" the platform. Don't use the
  boomlift as a crane.
• Don't operate the boomlift from a position on
  trucks, trailers, railway cars, floating vessels,
  scaffold, or similar equipment unless the
  application is approved in writing by the
  manufacturer.
• Don't alter or modify the boomlift unless you
  have written permission to do so by the
  manufacturer.

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Remember When Refueling

• Here are a few things to remember when refueling
  the boomlift
• Never fill the fuel tank of a lift with the
  engine running.
• Never smoke or have the lift near an open flame
  when filling the fuel tank.
• Be sure to use the correct type and grade of
  fuel.
• Never mistakenly put fuel into the hydraulic
  tank.
• Ground the fuel funnel or nozzle against the
  filler neck to prevent sparks.
• Be sure to replace the fuel tank cap.

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Fall Protection When and Why

• Fall protection is required due to the potential
  for being bounced out of lift or from climbing
  out of the basket. A harness is required to be
  worn when on the platform you must be and be tied
  off at all times. Remember to inspect the harness
  prior to use!

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Tie-Off Points on Platform

• Safety lanyard tie-off ring is usually located in
  the area close to the operator control station.
  There are 3 on the University's lift.

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Guardrails on the Platform Section

• Guardrails are another type of fall protection.
  Guardrails are not to be used as a ladder, by
  standing on them in order to gain greater height.
• The purpose of the toeboards is to keep loose
  debris, tools or materials from falling off of
  the platform to the ground.
• It is the operator's responsibility to make sure
  all personnel in the platform are wearing fall
  protection devices and that their lanyards are
  securely fastened to the tie-off ring.

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OSHA-Required Inspection

• OSHA requires that boomlifts be inspected.
• Boomlift Pre-Shift Inspection Report
• At the start up
• When the boomlift is out of your sight
• Workplace Pre-Shift Inspection Report
• Before you move the boomlift into the area
• At the start of work
• Anytime you are away from the lift
• Copies must be kept on file
• New sheet for each time checked
• These reports will be gone over in detail during
  the Practical Training portion.

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Instructional Portion Conclusion

• You have just completed the instructional portion
  of the boomlift training. In order to receive
  credit, you must complete the post test.
• For the practical portion of this course, please
  contact Mike Proctor at 962-5083 to schedule your
  training. Once both portions of the boomlift
  training are completed, EHS will mail you an
  operators' license. If you have any questions
  regarding this training or any safety and health
  issue, please contact EHS at [phone]. In
  order to receive credit for this training, you
  much complete the post test.