overhead crane session
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Overhead Crane Overhead Crane General Use & Inspection CriteriaGeneral Use & Inspection Criteria
The Selection Process For Both Overhead Cranes & Underhung Hoists, Should Not Be Taken Lightly.
A Significant Amount Of Pre-planning Is Needed To Place The Proper Crane Or Hoist Into The Proper Environment.
The Key To Equipment Longevity Is Complete And Through Inspections
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Different Equipment TypesDifferent Equipment Types
Overhead Cranes Gantry, Semi-gantry,
Bridge, Cantilever etc Underhung Hoist
Monorail, Underhung Bridge, Wall jib, Floor jib, etc
Electric, Air (pneumatic), Manual powered
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Duty Cycle ClassesDuty Cycle Classes
There Differences Between Overhead and Underhung Crane Classifications
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Duty Cycles - Overhead CranesDuty Cycles - Overhead Cranes
CMAA spec 70 ASME B30.2
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Duty Cycles - Overhead CranesDuty Cycles - Overhead Cranes
There are six Service Class designations for the Overhead Cranes based on their Load Class and Load Cycles. Class A F
Class A Standby or Infrequent Service Class B Light Service Class C Moderate Usage Class D Heavy Service Class E Severe Service Class F Continuous Severe Usage
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Duty Cycles - Underhung HoistsDuty Cycles - Underhung Hoists
CMAA spec 74 ASME B30.16
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Duty Cycles Underhung HoistsDuty Cycles Underhung Hoists
There are four Service Class designations for the Overhead Cranes based on there Load Class and Load Cycles. Class A D
Class A Standby or Infrequent Service Class B Light Service Class C Moderate Usage Class D Heavy Service
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Duty Cycle & Maintenance CostDuty Cycle & Maintenance Cost
Placing Class B Crane Into A Class C Environment is Tantamount to .
Flushing Your Maintenance Dollars Down The Toilet!
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Overhead Crane InspectionsOverhead Crane Inspections
There Are Two Reasons For The Correct And Timely Performance Of Inspections, And Testing On Overhead Cranes.
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Overhead Crane InspectionsOverhead Crane Inspections
Humanitarian Decrease The Probability
For Equipment Failures That Result In Personnel Injuries/Death.
Provide A Safer Working Environment For All Workers.
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Overhead Crane InspectionsOverhead Crane Inspections
Economic Increased
Productivity. Decrease Repair &
Replacement Cost.
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LOCKOUT/TAGOUTLOCKOUT/TAGOUT
29 CFR 1910.147 Procedures
Designed To Save Lives And Prevent Injuries Prior To Maintenance And Inspection Procedures
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TYPES OF STANDARDSTYPES OF STANDARDS
Regulatory Standards Federal OSHA State OSHA
Must Be At Least As Effective As Federal OSHA
25 States & Two Territories
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TYPES OF STANDARDSTYPES OF STANDARDS
Regulatory Standards (cont.) Local Requirements Employer Practices Manufacturer
Specifications/ Recommendations
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TYPES OF STANDARDSTYPES OF STANDARDS
Consensus Standards ASME (American Society of
Mechanical) CMAA (Crane Manufacturers
Association of America) NEC (National Electric Code)
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INSPECTION REQUIREMENTSINSPECTION REQUIREMENTS
Federal - General Industry Initial (29 CFR 1910.179 (j)
(1)) Regular (29 CFR 1910.179
(j) (2)) Frequent: 29 CFR
1910.179 (j) (2) and ASME B30.2
Periodic: 29 CFR 1910.179 (j) (3) and ASME B30.2
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INSPECTION REQUIREMENTSINSPECTION REQUIREMENTS
Federal Construction Permanently Installed Cranes Exempted
1926.1438
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INSPECTION REQUIREMENTSINSPECTION REQUIREMENTS
Federal Construction Non-Permanently Installed Overhead
Cranes Used in Construction Must comply with the following: Modified Equipment (1926.1412 (a)) Repaired/Adjusted Equipment (1926.1412 (b)) Post-assembly (1926.1412 (c)) Each Shift (1926.1412 (d)) Monthly (1926.1412 (e)) Annual/Comprehensive (1926.1412 (f)) Severe Service (1926.1412 (g)) Equipment Not In Regular Use (1926.1412 (h))
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INSPECTION PROCESSINSPECTION PROCESS
Inspections may be broken down into systems, i.e. Mechanical
Brakes (not including the actuators) Brake lining Gear Box(s) Drive (End) Trucks Drive Shafts, etc.
Structural Runway Rails Bridge Girders, etc.
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INSPECTION PROCESSINSPECTION PROCESS
Inspections may be broken down into systems, i.e. Electrical
Motors Controllers Brake actuators Buss Bars Electrical Cabinets, etc.
Hydraulic/Pneumatic Brake Actuators Master Cylinder, etc.
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INSPECTION PROCESSINSPECTION PROCESS
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Drive Wheel, Gearbox & Driveshaft
Mec
hani
cal I
nspe
ctio
nM
echa
nica
l Ins
pect
ion
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INSPECTION PROCESSINSPECTION PROCESS
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Brake Lining, Drums & Components
Mec
hani
cal I
nspe
ctio
nM
echa
nica
l Ins
pect
ion
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INSPECTION PROCESSINSPECTION PROCESS
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Catwalk & Driveshaft Alignment & Mounting
Mec
hani
cal I
nspe
ctio
nM
echa
nica
l Ins
pect
ion
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INSPECTION PROCESSINSPECTION PROCESS
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Gear Box Inspection
Mec
hani
cal I
nspe
ctio
nM
echa
nica
l Ins
pect
ion
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INSPECTION PROCESSINSPECTION PROCESS
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Runway & Rails
Stru
ctur
al In
spec
tion
Stru
ctur
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Support Column Alignment & Missing Hardware
Stru
ctur
al In
spec
tion
Stru
ctur
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Bumpers & End Stops
Stru
ctur
al In
spec
tion
Stru
ctur
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Confirm Square of Bumpers &Rails
Stru
ctur
al In
spec
tion
Stru
ctur
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Wiring and Wire Terminations
Elec
tric
al In
spec
tion
Elec
tric
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Hoist Motor
Elec
tric
al In
spec
tion
Elec
tric
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Collectors & Conductors
Elec
tric
al In
spec
tion
Elec
tric
al In
spec
tion
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INSPECTION PROCESSINSPECTION PROCESS
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Hydraulic Brake for Leakage
Hyd
raul
ic/P
neum
atic
H
ydra
ulic
/Pne
umat
ic
Insp
ectio
nIn
spec
tion
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REQUIREMENTS FORREQUIREMENTS FORLOAD TESTINGLOAD TESTING
Operational Tests and Rated Load Tests: Initial Installation (NEW) After Alterations, Repairs Or Modifications 29 CFR 1910.179 (K) (1) ASME B30.2-2.1 And 2-2.2.2 Some State OSHAs Require Load Testing
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DOCUMENTATIONDOCUMENTATION
Required Annual Monthly On
Critical Items And Running Rope
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DOCUMENTATIONDOCUMENTATION
Recommended Documentation And Retention Time Daily (Current And Previous Month) Weekly (Latest Plus Previous 4) Monthly/Quarterly (Latest Plus Previous
Year) Semi-annual/Annual (Latest Plus Previous
Year) Others (Latest Plus Previous Year)
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DOCUMENTATIONDOCUMENTATION
Required Documentation And Retention Time Per 29 CFR 1926 Subpart CC
Monthly (29 CFR 1926.1412 (e)(3) (document must be retained for a minimum of three months)
Annual (29 CFR 1926.1412 (f)(7) (document must be maintained and retained for a minimum of 12 months)
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Maintains A Complete Inspection, Maintenance, And Testing History Of The Equipment.
Allows End User To Establish Life Cycle Cost.
Assist In Establishing Trend Analysis.
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DOCUMENTATIONDOCUMENTATION
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DOCUMENTATIONDOCUMENTATION
Can Establish Requirements For On-hand Spare Parts To Decrease Replacement Lead Time
Provides Statistical Data To Predict Mean Time Between Failure (MTBF)
Provides Statistical Data To Predict Mean Time To Repair (MTTR)
To Defend Against Liability
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STORAGE OF DOCUMENTATION STORAGE OF DOCUMENTATION
Documents should be stored in a place where they are readily available. All workers, most importantly the operator, should know where these papers are.
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SUMMARYSUMMARY
The Inspection And Testing Of Overhead Cranes And Hoists Is Crucial To Safe Workplace Conditions.
Any Kind Of Equipment Begins Depreciating After Its First Use.
A Defect In Equipment Can Bring A Quick End To The Day, In A Best-case Scenario.
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Overhead Crane General Use & Inspection CriteriaDifferent Equipment TypesDuty Cycle ClassesDuty Cycles - Overhead CranesSlide 5Duty Cycles - Underhung HoistsDuty Cycles Underhung HoistsDuty Cycle & Maintenance CostOverhead Crane InspectionsSlide 10Slide 11LOCKOUT/TAGOUTTYPES OF STANDARDSSlide 14Slide 15INSPECTION REQUIREMENTSSlide 17Slide 18INSPECTION PROCESSSlide 20Slide 21Slide 22Slide 23Slide 24Slide 25Slide 26Slide 27Slide 28Slide 29Slide 30Slide 31Slide 32REQUIREMENTS FOR LOAD TESTINGDOCUMENTATIONSlide 35Slide 36Slide 37Slide 38STORAGE OF DOCUMENTATIONSUMMARY
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