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Scissors, vertical, boom and
material lifts
University Safety & Assurances
www.pps.edu
Presentation created by Robert Grieshaber and Sue Kerns for use at:Univ. of Wisconsin-Milwaukee
Physical Plant ServicesPO Box 413
Milwaukee, WI 53201 USA(414) 229-4742(414) 229-4576
v. May 2009
http://www.uwm.edu/Dept/EHSRM/http://www.pps.edu/http://www.pps.edu/http://www.uwm.edu/Dept/EHSRM/ -
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Topics of Discussion
Training
Required
Regulations
Types
Hazards
Controls Prohibitions and
Precautions
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Aerial Lifts
Lifts are abetter way to
reach overheadareas and aresa fer t han
ladders ;
however, safetyprecautionsmust be
followed.
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Training
Staff and studentsusing forklifts,
mechanical lifts orpowered platformsmust receive basicoperational and safetytraining prior to use.
This includes properuse and limitations ofthe equipment.
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Regulations
OSHAs aerial liftregulations cover:
Aerial Lifts
Elevated Platforms
Powered Industrial
Trucks (forklifts)
Cranes and Derricks
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Types of Lifts
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Forklifts
Stationary Push type
Self
PropelledElectric, Gasor Diesel
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Scissor Lifts
Push Type
Self Propelled
Electric, Gas orDiesel
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Articulating Boom Aerial Lift Types
Trailer-Mounted
Truck-Mounted
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Telescopic Boom Aerial Lift
Push Type
Self Propelled
Electric, Gas orDiesel
Truck Mounted
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Forklifts
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Cranes
Fixed
Gantry
Hydraulic
Lattice
Boom Telescopic
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Other Combinations
ElevatedPlatforms
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Articulating BoomAerial Lift Types
A self-propelled,integral frame, boom
supported platformwhich telescopes &rotates beyond the
base dimensions toposition personnelalong with their tools
and necessarymaterials atoverhead work
locations.
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Fork-truck workplatform
We have a fork-truck workplatform at the Univ.Services Building (USB).
Since the platform has astandard railing system,tying-off is not required aslong as your body stayswithin the confines of therailings. Except for verticalpositioning, the truck must
not be relocated while aperson is in the platform.
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Specific Hazards
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Specific Hazards
There are specifichazards associatedwith operatingaerial platforms.
These hazards are: Fall Hazards
Tip-Over Hazards
Collision Hazards Electrocution
Hazards
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Aerial Lifts
(Articulating &Telescoping Boom
Lifts)
Fall protection isrequired due topotential for beingbounced out of liftand to keep
worker fromclimbing out of thebasket.
Specific Hazards --Fall Hazards
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Any occupant of aself-propelled boom
must wear fallprotection (bodyharness and shock-absorbing lanyard.)
Do not sit, stand orclimb on the
platform guardrails Do not climb out of
the platform when
it is raised.
Specific Hazards Fall Hazards
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Specific Hazards Tip Over Hazards
Do not exceed the
rated platformcapacity
Platform is intended
to be elevated on afirm, level surfaceunless equipped with
outriggers
Do not operate in
strong or gusty windsAftermath of Miller Park Big Blue cranecollapse.
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Do not drive neardrop-offs, holes, orloading docks.
Do not raiseplatform onuneven or softsurfaces.
Do not drive ontouneven or softsurfaces when
elevated. Do not raise
platform on slopeor drive onto slopewhen elevated.
Specific Hazards --Tip Over Hazards
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Special Hazards Tip Over Hazards
Cribbing underwheels to prevent
sinking into wetsoil.
UWM rental Genie S-60 (Dec. 2008, for gutter clean out at
Hefter Conference Center)
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Miller Park Crane Collapse 1999
Source: Milwaukee Journal-Sentinel web site
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Miller Park Crane Collapse 1999
July 14,1999
3 Dead Significant
project delayand cost-overruns.
Photo: Aftermath of Miller Park
Big Blue crane collapse
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Specific Hazards Tip Over Hazards
Do not placeor attach
overheadloads to anypart of theplatform
Do not placeladders orscaffolds in
the platform
Photo: Aftermath of Miller Park
Big Blue crane collapse
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Specific Hazards -- Collision
These include hazards to theaerial platform & surroundingareas as well as personnelcollisions that result in injury.
Check work area forobstructions or other hazards
Do not lower the platformunless the area below is clearof personnel & obstructions
Limit travel speed accordingto condition of groundsurface, congestion, slope,location of personnel
Be aware of blind spots
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Specific Hazards -- Electrocution
Operations manualand decal on liftshould provideinformation on safedistance to maintain
when working nearelectrical apparatus
Assume all
electrical partsand w ires areenergized unless
known otherw ise.
Minimum Safe Approach
Distance
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Maintain safe clearancesfrom electrical power
lines and apparatus You must allow for
platform sway, rock, or
sag This work platform does
not provide protectionfrom contact with or
proximity to anelectrically chargedconductor
Specific Hazards -- Electrocution
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Special Hazards: Battery Charging
Charge batteries only inwell-ventilated areas
Lead-acid batteriescontain sulfuric acidwhich will damage eyesor skin on contact
Wear eye/faceprotection, protectivegloves and clothing forbattery maintenance
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Controls
Requiresspecialized
training Followmanufacturers
instructions Routine
inspections
Periodicinspections
Hands on
experience UW-Milwaukee Workforce Boom Lift training, Nov. 2002 (unit retired from service).
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Precautions and Prohibitions
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Precautions
Check the following:
Outriggers, stabilizersand extending axles
Upper and lower controlstations including
auxiliary/emergencycontrols.
Platform handrails andgates.
Level gauge (as shown inphoto)
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Precautions
Operators must:
Keep work surfaces and elevating mechanisms
clean and clear of debris. Before attempting to clean a machine, lower
the platform to the stowed position and turnoff the engine.
Clean steps, railings, ladders, and platformfloor. Remove grease or oil. Replace anti-skid tape or paint, as required. Remember-slippery surfaces can be hazardous.
Remove or put away tools, ropes and hooks.
Remember-loose items on the floor couldcause an accident.
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Precautions
CHECK AT GROUND OR FLOORLEVEL:Inspect the surface on which you will
be working. Look for holes, obstacles,drop-offs, rough spots, and weak spotson covers on ramps or floors. Look foroil spills, wet spots, slippery surfaces,
soft soil or standing water. Watch foranything that may make you losecontrol or cause the platform to tipover. Clear away all debris, and make
sure all passages are clear.
UWM Hefter Center (Nov. 2008):Equipment on soft soil, with cribbing
under wheels.
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Precautions
Operators must:
Think about how you will
approach the area, andwhere you will place yourmachine for proper liftclearance.
Lock out the controls of anyoverhead bridge or cranethat the boom may crossthe path of.
Check clearances of
doorways, canopies, andpower lines, also checkclearances whentransporting the platform on
a truck or trailer.
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Make the Right Start
Know rated workload ofyour machine and neverexceed it
Know weight of allpersonnel, tools and
other items placed on theplatform
Disperse load evenlybefore raising the
platform
Do not carry materials on
railings unless approvedfor that purpose
Aerial platform must beon a firm, flat, smooth
and level surface whenplatform is raised
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Proper Mounting
Use 3-point contact
Always face the machine
Use handrails, ladders or
steps
Never grasp control leverswhen mounting orclimbing off
Never walk or climb theelevating assembly to gainaccess to an elevated
platform
Check that all handrails,toeboards, gates andentry chains are in placeand secured beforeraising the platform
Enter and exit theplatform from the groundonly
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Test the Controls
After starting, recheck allgauges and lights
Check audible and visiblealarms
Check control functions,
including emergency stopmechanism
Recheck steering, rightand left
Move slowly until you are
certain everything isoperating properly
Be certain you have fulltravel & automatic brakecontrol
Be sure you can lowerelevated platform
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Safe Operating Practices
Only designatedoperator shouldoperate controls
Never jam an
operating controlfrom one traveldirection to another.
Return to neutral,stop, then proceed inthe other direction
Avoid sudden stops,starts or changes indirection
Never attempt to
work controls exceptfrom operatorscontrol station or
lower control station
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Watch Out for Others
Never allow anunqualified orunauthorized personto operate lift
Keep everyone clearof a workingplatform
Never permit anyoneto stand or passunder a raised
platform
Never drive an aerialplatform up tosomeone standing infront of a fixed
object Never move or
position any park of
a machine overanother person
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Work Safely
When platform hasbeen raised toworking position, becautious to prevent
any object fromstriking or interferingwith operating
controls. Secure all tools,
equipment or other
materials
Keep ropes,electrical cords andhoses coiled andstowed away when
not in use Keep platform floor
clear of debris and
loose objects whichmight cause you toslip
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Never use ladders,planks, steps or other
devices to provideadditional reach orgain greater height
Do not lean over orsit or climb on theplatform railing
Always keep both feeton platform floor atall times
Never belt off toadjacent structure
when working onplatform
Never allow anyone to
tamper with, serviceor operate a machinefrom lower control
station whilepersonnel are in theplatform except in an
emergency
Work Safely
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Operator Checklist
1. Operating & emergencycontrols
2. Safety devices
3. Personal protective devices
4. Tires & wheels
5. Air, hydraulic & fuel systemfor leaks
6. Loose or missing parts
7. Cable and wiring harness
8. Placards, warnings, control
markings & operatingmanual
9. Guardrail system
10.Battery fluid level
11.Hydraulic reservoir level12.Coolant level
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Pallet Jacks
Before picking up loadmake sure forks arelowered, squared &wide enough to providegood support
Move under load as faras possible & makesure load is centered &stable before lifting
Raise load steadily andslowly
When forks are
raised, machine isless stable
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Position yourself so youhave the best visibility either forward or
backward All body parts must be
within the boundaries ofthe vehicle
Face the direction inwhich you are traveling
Always keep at least onehand on the controls
Watch your speed
Allow for wide-swingsaround corners
Walkie-Rider Pallet Jacks
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Prohibitions
Do not overload
Do not use without railings & entry gate in place
Do not use if work platform is not working orparts are damaged
Do not use near moving vehicles
Do not stand or sit on guardrails
Do not use under the influence of alcohol ordrugs
Do not override safety devices
Do not leave unattended with key in switch Do not use ladder or other device to increase
size or working height
Do not use with damaged wheels or tires orimproperly inflated tires
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Fall Protection
Personal fall protection (i.e., tying off) normallyisnt necessary on vertical lifts unless the workextends beyond the railing.
Scissors Lifts
(SKYJACK MobileElevating WorkPlatform)
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Precautions and Prohibitions
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Whats Wrong in This Picture?
Wh t W i
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Whats Wrong inThis Picture?
Personal FallProtection (ha rness ,lanyar d , anchor age) isnormally NOTrequired in a verticalor scissor lift as longas the guardrails are inplace. If personal fallprotection is requiredat the job, tie off to themanufacturer's tie-offpoints, NOT theguardrails as pictured
UW-Madison circa. 2006
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Whats Wrong in this Picture?
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Union Lamping 2007
JLG E450A high lift,UWM Student Union,
Jan. 2007
i i 200
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Union Lamping 2007
JLG E450A high lift,UWM Student Union,
Jan. 2007, notice the
Kl h C Lif
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Klotsche Center Lift2001 SOP for accessing Klotsche gymnasium HVAC platforms, before the
catwalk system.
UW Mil k i t
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UW-Milwaukee equipment
UWM Klotsche JLG 3246ES (Dec. 2008)
t ti
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presentation
UWM Klotsche JLG 3246ES (Dec. 2008)
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UWM Klotsche JLG 3246ES (Dec. 2008)
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UWM Klotsche JLG 3246ES (Dec. 2008)
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UWM Klotsche JLG 3246ES (Dec. 2008)
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UWM rental units Genie S-60 and S-40 (Dec. 2008)
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UWM rental Genie S-60 at Hefter Conference Center for gutter cleaning, Nov. 2008
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UWM rental units Genie S-60 control panel on
power unit (Dec. 2008)
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UWM
rental unit Genie S-60
precautionary label (Dec. 2008)
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UWM
rental unit Genie S-60
DANGER label (Dec. 2008)
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Consider includingthese photos in
presentation (as ofDec. 2008)
UWM
rental unit Genie S-40 control panel (Dec. 2008)
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UWM
rental unit Genie
S-40
precautionary
labels (Dec.2008)