User's Manual

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Glossary of Common Crane Terms:

Adjustable brakes:Electro-mechanicaldevicetocontrol

horizontalcranedeceleration.

Bridge beam:Travelingbeamconnectedtoendtrucks-

supportstrolleyhoistandload.

Bumpers:Energyabsorbingdevicemountedonend

trucksortrolleythatreducesimpactwhenthetruckortrolley

contactseitheritsendstoporanothertruckortrolley.

Capacity:Maximumratedloadwhichacraneisdesignedto

carry.CommonlyexpressedinTons.(1Ton=2,000lbs.).

Drop stops:Meanstolimitthedropofabridgeortrolleyin

caseofwheeloraxlefailure.

Electronic Acceleration Control (EAC):Electroniccontrol

foradjustingrateofcraneacceleration;alsoknownas

ElectronicSoftStart.

End truck:Load-bearingcranecomponentthatsupportsthe

bridgebeamandconsistsofaframe,wheels,axles,etc.

Festooning:Wiringandsupportsystemthatdeliverspowerto

trolleyhoistacrossbridgeorrunwaybeam.

Compliance

In order to meet requirements of the Crane Manufacturers Association of America (CMAA),

the National Electric Code (NEC) and the American National Standards Institute (ANSI/ASME),

Harrington cranes include:

• Thermalprotectionforallmotors.

• Stationarycranewiresthatareenclosedinconduit.

• Rubberbumpersforcraneandpoweredtrolleys.

• Hoistsloadtestedto125%ofratedcapacity.

• Dropstopsforcranes.

• Railsweepsfortoprunningandunderhungcranes.

Rail sweeps:Devicedesignedtoclearobstructionsfrom

wheelrunningsurface.

Runway beam:Stationarybeamsthatsupportcrane

andload.CommonlyfabricatedfromSorWbeamsor

patentedtrack.

Runway electrification:Deliverspowertocraneasittravels

alongrunway.

Span:Dimensionfromonerunwaycenterlinetotheother

runwaycenterline.

System max wheel load:Maximumloadexertedonrunway

beamsforacraneloadedtoitsratedcapacity.Itoccurswhen

trolleyhoistislocatedatitsmaximumendapproachand

includesanallowanceforverticalinertialforcesassociated

withelectrichoists.ThisvalueisexpressedforSeries3

cranesaslbs/wheelfortoprunningandlbs/wheelpairfor

underhungcranes.ForSeriesHPC500cranes,bothtop

runningandunderhungarelbs/wheelpair.

Top running:Cranetypethattravelsontopofrailorbar

attachedtorunwaybeams.

Underhung:Cranetypethattravelsonthelowerflangeof

runwaybeams.

Summary of content (9 pages)

PAGE 1
G l o s s a r y o f C o m m o n C r a n e Te r m s : Adjustable brakes: Electro-mechanical device to control horizontal crane deceleration. Rail sweeps: Device designed to clear obstructions from wheel running surface. Bridge beam: Traveling beam connected to end trucks supports trolley hoist and load. Runway beam: Stationary beams that support crane and load. Commonly fabricated from S or W beams or patented track.
PAGE 2
Harrington complete Cranes Crane Service Classifications: Crane Service Class: • The Crane Manufacturers Association of America (CMAA) has established six service classes for cranes. These classes are Class A through Class F, and are based on load cycles and load magnitude. Class A cranes are suited for the least severe service, and Class F cranes are suited for the most severe service.
PAGE 3
Bridge Crane Control Panels All motorized bridge cranes require a master panel to control bridge crane functions. Harrington control panels are completely pre-wired and tested, and ready to mount on bridge beam.
PAGE 4
Harrington complete Cranes Bridge Crane Control Panels These panels are for use with all Harrington Series 3 motorized end trucks and are NEC compliant for overhead bridge cranes. All panels include bridge mounting bracket and wiring diagram. Specify voltage when ordering.
PAGE 5
M otor and Brake Harrington motorized cranes are dual drive type, employing two totally enclosed non-ventilated drives per crane. Drives use helical and spur gearing and are equipped with adjustable DC brakes.
PAGE 6
Harrington complete Cranes Series 3 Underhung Crane Drive Wheels Harrington’s motorized and geared underhung cranes use a gear system that drives two of the four wheels on each end truck. All Series 3 underhung cranes have two bearings in each wheel.
PAGE 7
Bridge Beam Selection Charts S e r i es 3 — S i n g l e G i r de r B eam S i z es Bridge beam sizing is based on Harrington chain hoist products’ weights and speeds 32 Maximum Allowable Span (ft) 1/2 1 2 3 5 8 10 10 S8x18.4 S8x18.4 S10x25.4 S12x31.8 S12x40.8 W18x71 W21x93 15 S8x18.4 S8x18.4 S10x25.4 S12x40.8 S15x50 W21x83 W18x106 20 S8x18.4 S10x25.4 S12x31.8 S15x42.9 S15x42.9 C8x11.5 W21x93 W18x119 25 S10x25.4 S10x25.4 S12x31.8 C8x11.5 S15x42.9 C8x11.5 S15x42.9 C10x15.
PAGE 8
Harrington complete Cranes P r od u ct S peci ficatio n For m Harrington Complete Crane Systems HARRINGTON COMPLETE CRANE SYSTEMS Quantity Capacity Span Voltage Runway Length _____ _____ (Ton) _____ _____ (If Motorized) _____ Crane Type _____ Single Girder _____ Double Girder _____ Top Running _____ Underhung Structure _____ Rail Size (If Top Running) _____ Runway Beam Size (If Underhung) Bridge Travel (If Motorized) (If Geared) _____ Motorized _____ Push _____ Geared _____ Single Speed _____ Dual S
PAGE 9
Options Flat Cable Festooning Warning Devices • Roving pendant • Lights • Hoist/trolley power • Audible alarms • Runway—crane power Variable Frequency Control • Bridge • Multiple speeds • Runway • Infinitely variable speeds • Programmable acceleration and deceleration Remote Control • Radio • Infrared • Wall-mounted pendant (hard-wired) 24V Control Voltage Multiple Hoists on Single Bridge Power Supply—Other Voltages Available Interlocking Bridges Patented Track Runway Applications (3 1/4" and