Equipment & Material Handling · Equipment & Material Handling. Table of Contents Section Page ....
Transcript of Equipment & Material Handling · Equipment & Material Handling. Table of Contents Section Page ....
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does not assume any liability for damages arising from the use of this information or exhibits and attachments thereto and renders no opinion that any of the terms, conditions, and/or cited federal standards in this document and
the exhibits and attachments should be explicitly followed by the fund member. Seek specific guidance from the appropriate regulator (OSHA) or professional advisor.
Equipment & Material Handling
Table of Contents Section Page
Motor Vehicles 03 Manual Handling 18 Forklifts 26 Cranes 31 Signaling & Rigging 38 Material Storage 48
2
Motor Vehicles
• OSHA does not have specific training requirements for employees using motor vehicles and mechanized equipment on the job.
• They do however have a general training requirement: – “Each employer shall instruct each employee in
the recognition and avoidance of unsafe conditions and the regulations applicable to his work environment to control or eliminate any hazards or other exposure to illness or injury”
General Requirements • An employer must insure that the
equipment is inspected regularly. • Any damaged or improperly functioning
parts must be repaired immediately. • Operators must be familiar with the
operator’s manual supplied by the manufacturer.
• Operators must conduct a pre-shift inspection before each use.
Pre-Shift Inspection
Brake System Hydraulics
Pedestrian Warning Devices
Fluid Levels, Battery Connections
Tires or Tracks Grease Fittings
Operator Controls Boom Assembly
Cab Conditions Body Work
Operator Safety Systems Warning Decals
Couplings R.O.P.S.
(ROPS) Rollover Protection System
• Intent of the system is to minimize the possibility of complete overturn
• ROPS are required for all rubber tired and crawler-type off road equipment
• The seatbelt is an integral part of the ROPS
• Employees should never attempt to jump from a ROPS equipped machine during rollover
Standard Specifics • All bidirectional machines must have a back-up
alarm (ditch-witch and Georgia buggies are the exception)
• A machine’s horn must be distinguishable from the surrounding noise level
• Riding along is prohibited unless a seat and seatbelt have been provided for the extra occupant/s
• No changes can be made to a machine without the manufacturer’s consent
Equipment Maintenance • Heavy Equipment parts
must be suspended by slings, hoists, or jacks during repair
• Make sure these procedures are followed prior to repair: – Hydraulics blocked or
cribbed – Engine stopped – Controls in neutral – Brakes set – Wheels chocked
Jobsite Considerations • Soil Conditions
– Be aware of weather conditions that can impact the work surface (rain, drought, etc.)
– Previously excavated soil – Areas destabilized by high traffic
• Terrain – Steep grades – Uncleared lots and excessive undergrowth can hide dangerous
terrain • Traffic
– In addition to jobsite traffic, also be aware of auto and pedestrian traffic
– Never block loading or transition areas • Emergency Routes
– Never block important access paths on the jobsite
Spill Containment
• If materials such as fuel or lubricants are discharged into soil or water, they must be contained and cleaned up properly
• Spill napkins and absorption pads should be readily available
• Any spill on land in excess of 25 gallons is reportable
• Any release of petroleum into water is reportable
Spill Containment
• Emergency Management Association (State) 334-263-7594
• National Response Center 800-424-8802
• No quantity is too small for clean-up • Soil must be excavated completely and
transferred to suitable containers for transport
Jobsite Motor Vehicles Back hoe
• If equipped with outriggers, they must be set and vehicle properly leveled prior to digging.
• For travel, back hoe must be in the upright position and bucket should be carried low.
• Never operate the controls from outside the cab.
Jobsite Motor Vehicles Tracked Excavator
(Track hoe) • Counterweight swing
radius must be guarded against contact with machine or pedestrian
• Soil conditions must be monitored continuously to insure stability
Jobsite Motor Vehicles
Skid-Steer • Most common
machine on residential construction sites
• A wide range of attachments are available
Jobsite Motor Vehicles Dozer
• Primarily used for clearing and grading duties
• Also handle rough ditching and spreading
• Soil stability and knowledge of terrain are important for safe operation
Jobsite Motor Vehicles Front Loader
• Most common in aggregate facilities and batch plants
• Vehicles feature center articulation
• Loads must be carried as low as possible to insure stability
• Front Loaders should not be used to perform the functions of dozers, graders, etc.
Jobsite Motor Vehicles All-Terrain Forklift
• Brands include Lull, JCB, and Grad-All
• Boom presents serious blind-spot, mirrors and raised boom are critical to safe travel
• Some models are equipped with chassis and carriage levelers
• Load capacity charts must be posted and legible in the cab
General Requirements For Manual Handling
• Employees should seek help when: – A load is so bulky it cannot be properly grasped or lifted – An employee can’t see around or over it – A load cannot be safely handled.
• Personal Protective equipment is an integral part of safe handling procedures. – Boots with sturdy soles – Gloves – Forearm Protection – Safety Glasses
Manual Handling - Back Injury Facts
• There are approximately 700,000 back-related injuries in the United States each year.
• Back injuries comprised 32% of all injuries reported, but consumed more than 40% of all workers' compensation dollars.
• Because they are often slow to heal and are likely to reoccur, back injuries are a costly injury.
The NIOSH Lifting Equation
• NIOSH – National Institute for Occupational Safety and Health
• Created a formula for evaluating on-the-job lifting tasks
• The equation establishes an “RWL” or Recommended Weight Limit for the individual employee/task
• ( RWL = LC x HM x VM x DM x AM x FM x CM )
Components of the Equation • LC (Load Constant) – Usually 51 lbs • HM (Horizontal Multiplier) – The distance of the hands
from the midpoint of the body (10 to 25 in) • VM (Vertical Multiplier) – vertical distance from hands
to floor (0 to 70 in) • DM (Distance Multiplier) – vertical distance of lift from
start to finish (10 to 70 in) • AM (Asymmetric Multiplier) – measured angle of twist
of the lift from start to finish (0° to 135°) • FM (Frequency Multiplier) – lifts per minute • CM (Coupling Multiplier) – ease of grasping the load
(rated as GOOD, FAIR, or POOR)
Using the Equation
• Once the RWL is determined, the LI (Lifting Index) is used; – LI = Load Weight/RWL
• If the Lifting Index is at or above 1.0, the lifting task should be redesigned
• What factors can help create an easier lifting task?
Mechanics of Proper Lifting
• The following slides will demonstrate the basics of proper lifting technique
• Don’t forget these basics; – Warming up before attempting to lift is good practice,
don’t be afraid to get your blood flowing with some simple stretches.
– There is no shame in the buddy system, get help if you think you’ll need it!
– If management has provided equipment for helping you lift something, use it. Never take a short cut or put yourself in an unsafe position with a load.
- Establish a solid base
- Bend your knees
- Position yourself close to
the load - Lift with your
legs
-Complete the lift before twisting or
turning
General Requirements For Mechanical Handling
• When moving materials avoid overloading, consider the weight, size, and shape of the material
• Equipment capacity ratings must be displayed on each piece of equipment and must not be exceeded.
• Follow safe lifting procedures for the specific machinery in use
• OSHA requires that all machine operators are trained.
Forklifts
• NIOSH Fatality Statistics – Average age of a fatally injured worker was
38 – The largest proportion of fatalities occurred to
workers in manufacturing followed by transportation, communication and public utilities.
– Three most common causes of fatalities • forklift overturn (operator not restrained) • pedestrians struck by forklift • workers crushed by forklift
Forklifts • Operator training was made
mandatory for all industries as of March 1, 1999.
• Employer must train operators using federal guidelines for certification.
• Equipment that was designed to move earth but will accept forks is not covered, nor are over the road haulage trucks.
Which machine falls under 1926.602(d) ?
Exempt Not Exempt
Forklifts Training must incorporate the following subject matter: Familiarization with the Machine
Understanding the basics of stability Understanding the forces that cause tip-over
Vehicle Inspection Vehicle Operation Load Handling Power Source
LPG Handling and Use Battery Charging
Hands-On Training
Forklifts Refresher Training must be
provided when: An operator has an incident or near-
miss incident An operator is asked to run a different
type of truck The operator has been evaluated as
not operating in a safe manner Training records must be kept on
file after the date of completion for at least three years
Operators are not subject to fitness tests
OSHA does not require certification cards
Mobile Cranes
Mobile Cranes
• Inspection
• OSHA requires all mobile cranes to be inspected regularly.
• A pre-operational (frequent) inspection must be made by a competent person before each use of the crane.
• OSHA also requires a monthly inspection of critical items and a thorough inspection of the entire crane at least annually.
• Stand-by cranes must also be inspected to a pre-operational level at least every six months.
Mobile Cranes
• Inspection
• In accordance with federal regulations and the manufacturer’s guidelines, the following items must be inspected at minimum;
Wire rope and reeving Electrical equipment
All operational aids Control mechanisms
Fluid Levels Tires
Hooks and latches Hydraulic system
Mobile Cranes
• Crane Set-Up
• The operator must be aware of potential contact with power lines and maintain an adequate separation distance based on the voltage of the line.
• Some form of highly visible physical barrier must be erected around the swing radius of the crane.
• Blocking under outriggers should exceed the surface area of the float by at least three times and have no separation between lumber.
Mobile Cranes
• Crane Set-Up
• Load charts must be either posted or bound and readily accessible in the cab.
• Inspection records and operators manual should also be on the vehicle at all times.
• Accurate leveling of the crane is essential for safe lifting. Also, particular care must be taken to insure the surface under crawler cranes and cranes operating “on rubber” are level before making the lift.
Mobile Cranes
• Safe Operating Procedures
• Enforce the “no rider” rule. There must be approved seating for all personnel. Operators must use seatbelts at all times.
• Never use a crane to drag a load sideways. (Sideloading)
• If the operator has to leave the controls he/she must: – Land the load and place all control levers in
neutral – Secure the crane against accidental travel – Set all brakes and locking devices – Shut off the engine
Mobile Cranes • If crane operation is frequently
interrupted, the operator may leave the crane with the engine running so long as the crane remains in view and unauthorized entry is prevented.
• Use tag-lines to control larger loads and in conditions where the weather is inclement.
• Operator must take direction from only one designated signaler.
Signaling
• Operators must only respond to signals given by the designated signal person.
• Unless radios are available, the standard hand signals prescribed by ANSI/ASME B30.5 are to be used.
• The following slides show basic hand signals
Signaling
Signaling
Sling Safety
• Synthetic Web Slings
• Can handle loads of up to 30,000 lbs • Will adjust to the load contour and
hold it with a tight, non-slip grip • Is not affected by mildew, rot, or
bacteria, resistant to most chemicals, has excellent abrasion resistance
• Has low cost and long service life • Can absorb heavy shocks without
damage • Is unaffected by temps up to 180°F • Comes equipped with warning threads
sewn into core to show wear and prompt replacement.
Sling Safety
• Wire Rope
• Composed of individual wires twisted to form strands
• Strands are then twisted to form the rope
• Ropes utilizing wire cores have good heat resistance capabilities
• Factors such as bending stresses, loading conditions, jerking, abrasion, corrosion, sling design, and materials handled are all factors that contribute to the shortened service life of a wire rope sling.
Sling Safety
• Chains • Commonly used because of
their strength and ability to adapt to the shape of the load.
• Are prone to damage through sudden shocks
• Chain slings are ideal for high heat applications, can be exposed to temperatures of up to 1000°F
Sling Safety • Inspection • Check slings for;
– Severe corrosion. – Localized wear(shiny worn spots or
frayed, isolated spots) – Damage or displacement of end fittings,
hooks, rings, links, or collars. – Distortion of eyelets, individual links, or
strands. – Limited flexibility – OSHA requires that wire rope slings be
removed from service if it contains 6 randomly distributed broken wires or 3 broken wires in one strand in one lay.
**Note** Proper storage is critical to
maximizing the life of a sling.
Rigging Hardware
Hooks • Clevis and Eye types are
most common • Should be inspected for
spot wear and elongation • Hooks should never be
painted, this can hide cracks and other causes of failure
• Latches should be in working order if originally equipped
Rigging Hardware Shackles • Chain or Anchor type • Shackle pins should never be
replaced with bolts • Pin side always goes to the
rigging hook, shims may be necessary to maintain center position
• Inspection includes – Pin seats – Straightness – Signs of spreading – Overall wear
Rigging Hardware
Turnbuckles • Clevis, eye, and
hook types • Unit can have any
combination type on ends
• Observe working load limits for safe use
Flammable and Combustible Liquids
• The quantity of flammable or combustible liquid that may kept outside of a storage room or cabinet inside the building shall not exceed: – 25 gallons of Class IA liquids in containers – 120 gallons of Class IB, IC, II, III liquids in
containers – 660 gallons of Class IB, IC, II, III liquids in a
single portable tank
Flammable Liquid Classification
Flammable Liquid refers to any liquid having a flash point below 100° F
FP - Flash Point BP - Boiling Point
Class IA Class IB Class IC
FP < 73° FP < 73° FP ≥ 73°
BP < 100° BP ≥ 100° BP < 100°
Combustible Liquid Classification
Combustible Liquid refers to any liquid having a flash at or above 100° F
FP - Flash Point
Class II Class IIIA Class IIIB
FP ≥ 100° FP ≥ 140° FP ≥ 200°
FP < 140° FP < 200°
Inside Storage Rooms
• Shall be of fire resistant construction • Liquid tight were the walls join the floor • Have approved self closing doors at all
openings • At least 4” sills, ramps, or depressed floors
or open integrated trench which drains to safe location
Inside Storage Rooms
• A ventilation system that provides at least six room changes / hour
• For Class I liquids, electrical wiring approved for hazardous locations
• Explosion resistant lighting fixtures • Wood at least 1 inch nominal thickness for
shelving, racks, dunnage, scuffboards, floor overlay, and similar installations
Flammable Storage • All solvent wastes and flammable liquids must
be kept in fire-resistant, covered containers until they are removed from the worksite
• Firm separation should be placed between containers of combustibles or flammables, when stacked one upon another, to assure their support and stability
• Permanently installed sprinkler system heads must not spray into operating electrical switch boards and equipment
Flammable Liquids • Spills of flammable or combustible liquids must be
cleaned up promptly • Storage tanks must be adequately vented to prevent the
development of excessive vacuum or pressure as a result of filling, emptying, or atmosphere temperature changes
• Storage tanks must also be equipped with emergency venting that will relieve excessive internal pressure caused by fire exposure
• Insure that all connections on drums and combustible liquid piping and vapor are liquid tight
Flammable Liquids
• Ground and bond bulk drums of flammable liquids to containers during dispensing
• Use approved metal safety cans for handling of any flammable liquids in quantity greater than a gallon
• Keep flammable liquids in closed containers when not in use (example: parts cleaning tanks, pans, etc.)
Combustible Storage
• Combustible scrap, debris, and waste materials (oily rags, etc.) should be stored and removed from the worksite as promptly as possible
• Proper storage practiced to minimize the risk of fire including spontaneous combustion
• Keep combustible materials away from potential ignition sources
• Never store flammable or combustible liquids in access or egress areas
General Storage Requirements
• Storage areas must be kept free from materials that may cause tripping, fires, or explosions.
• Storage areas should not block or intrude on facility pathways
• When stacking and piling materials consider – Height – Weight – Accessibility – Condition of the container
General Requirements For Storage
• Consider availability of materials, safe movement of material handling equipment, and personnel.
• Employees required to work in stored material vessels shall be equipped with a personal fall arrest system.
• When a difference in work levels exists, some means of smooth transition must be employed, i.e. grading, ramps, blocking.
General Requirements For Storage
• Compressed gas cylinders must be secured and upright. Different gases must be separated by at least 20 ft. or by partition with specific dimension and fire retardant capabilities.
• Observe height limitations for stacked materials. – Ex. Lumber must be stacked no more than 16 ft. high if
it is handled manually, 20 ft. for forklift use • Used lumber must have all nails removed before
stacking. • Lumber must be stacked and leveled on solidly
supported bracing.
General Requirements For Storage
• Bags and bundles must be stacked in interlocking rows.
• Drums, barrels, and kegs must be stacked symmetrically. If stored on their sides, the bottom tiers must be blocked.
• Boxed materials must be banded and baled. • Paper or rags stored inside a trailer must not be
closer than 18 inches to walls, partitions, or sprinkler heads.
• Non-compatible materials must be separated in storage.
General Storage Requirements
• If space above office or any other elevated area is used for storage, handrails must be installed per the OSHA’s handrail requirements – Top Rail height: 42” (+ or – 3”) – Mid Rail height: 21” (+ or – 3”) – Must be able to support 200 lbs of outward
and downward force on the top, 150 lbs on the mid rail
– Toe Boards are necessary only if an exposure exists for those below
Disposal of Waste Materials
• Materials dropped more than 20 feet to any point lying outside the exterior walls of the building, require an enclosed chute.
• Signs warning of the hazard of falling materials shall be posted at each level.
• All scrap lumber, waste material, and rubbish should be removed from the immediate work area as the work progresses.
• Disposal of waste material or debris by burning must comply with local fire regulations, borough ordinances, and project management requirements.
• All solvent waste, oily rags, and flammable liquids shall be kept in fire resistant covered containers until removed from the worksite.