Glossary of Common Crane Terms:
Rail sweeps: Device designed to clear obstructions from
Adjustable brakes: Electro-mechanical device to control
wheel running surface.
horizontal crane deceleration.
Runway beam: Stationary beams that support crane
and load. Commonly fabricated from S or W beams or
patented track.
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.
Runway electrification: Delivers power to crane as it travels
along runway.
Span: Dimension from one runway centerline to the other
Capacity: Maximum rated load which a crane is designed to
runway centerline.
carry. Commonly expressed in Tons. (1 Ton = 2,000 lbs.).
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.
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.
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.
26
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.
Download from Www.Somanuals.com. All Manuals Search And Download.
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. Standard panel is
NEMA 1 rated and includes:
Through-the-door fused
disconnect switch
is oSHa compliant lock-out capable
Thermal overload relay
(auto-reset) protects crane
drives from overheating
Main line contactor
allows the crane to be turned
on and off from the pendant
reversing contactor
provides bridge crane
forward and reverse control
28
Control transformer
Fusing for crane drives
protect motors and are NEC compliant
Electric Acceleration Control (EAC)
allows easy field adjustment of crane
acceleration and helps minimize load swing
(with primary and secondary
fusing) provides low voltage
control circuit for pendant
NEMA 4 bridge crane control panels available upon request.
Download from Www.Somanuals.com. All Manuals Search And Download.
H a r r i n g t o n c o m p l e t e c r a n e s
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.
Standard Panel
Single Speed and Dual Speed Models with EAC—700, 800, 900 Series
Standard features include:
7
2
1
Lock-out compatible through-the-
door manual disconnect switch
with system fusing, 110 volt control
circuit transformer with primary
and secondary fusing, mainline
contactor, mechanically interlocked
reversing contactor, time and
torque adjustable Electronic
Acceleration Control (EAC), branch
circuit fusing for bridge, auto-reset
thermal overload relay, and bottom
hinged door.
Total System Amps
7 = 24 max.
Speed
Blank = Single Speed
8 = 48 max.
D = Dual Speed
9 = 80 max.
Enclosure Rating
1 = NEMA 1
Model
4 = NEMA 4
2
Product Code
29
Optional Panel
Variable Frequency Drive Models—2000 Series
Standard features include:
Lock-out compatible through-the-door manual disconnect switch with system fusing, 110 volt control circuit transformer with
primary and secondary fusing, mainline contactor, Variable Frequency Drive (VFD), brake relay, branch circuit fusing for bridge,
auto-reset thermal overload relay, and bottom hinged door.
These panels can be used for dual and multiple speed applications, infinitely variable speed applications and programmed
acceleration/deceleration control. VFD comes pre-loaded with many easy-to-select programs to fit virtually any crane control
application, and includes fault-code troubleshooting.
2
1
4
3
Series
2 = 2000 Series
Electrical Rating:
Total System Amps/
Drive Amps-Power Supply
43 = 25 max./4 max.—460V/3/60
44 = 45 max./12.5 max.—460V/3/60
23 = 25 max./8.6 max.—208-230V/3/60
24 = 75 max./24 max.—208-230V/3/60
Enclosure Rating
1 = NEMA 1
4 = NEMA 4
Product Code
Download from Www.Somanuals.com. All Manuals Search And Download.
Motor 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.
rugged helical and spur gears
provide reliable and quiet operation
30
Brake Disk
Sealed and shielded
motor bearings
are lubed for life
rectifier
for brake circuit supplies
DC voltage to brake coil
Download from Www.Somanuals.com. All Manuals Search And Download.
H a r r i n g t o n c o m p l e t e c r a n e s
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.
Two deep groove
ball bearings
per wheel for smooth
operation and long life
Brake assembly
is easy to adjust and is controlled
by an independent DC circuit for
compatibility with standard, EaC,
or Variable Frequency drive control
31
Brake Coil
induction-hardened
steel gears
provide synchronous power
Adjusting Bolt
to paired drive wheels
Stationary axles
welded to end truck
frame for ruggedness
Download from Www.Somanuals.com. All Manuals Search And Download.
Bridge Beam Selection Charts
S E r i E S 3 — S i n g l E g i r D E r B E A M S i z E S
Bridge beam sizing is based on Harrington chain hoist products’ weights and speeds
Maximum
Allowable
Span
Capacity (Tons)
(ft)
1/2
1
2
3
5
8
10
10
S8x18.4
S8x18.4
S10x25.4
S12x31.8
S12x40.8
W18x71
W21x93
15
20
25
30
35
40
45
50
55
60
S8x18.4
S8x18.4
S8x18.4
S10x25.4
S10x25.4
S12x31.8
S15x42.9
S10x25.4
S12x31.8
S12x40.8
S15x42.9
S15x50
W21x83
W21x93
W24x103
W24x103
W27x114
W18x106
W18x119
S15x42.9
C8x11.5
S12x31.8
C8x11.5
S15x42.9
C8x11.5
S15x42.9
C10x15.3
W24x103
C12x20.7
S10x25.4
S10x25.4
S12x31.8
S15x42.9
S15x42.9
C10x15.3
S15x42.9
W16x77
W21x83
W21x83
W24x94
W27x102
W27x114
W27x129
W30x148
S15x42.9
C8x11.5
W16x67
W18x71
W18x76
W21x83
W24x94
W27x114
S15x42.9
C8x11.5
W27x114
C12x20.7
W27x129
C15x33.9
W18x60
W18x71
W18x76
W21x83
W21x93
S15x42.9
C8x11.5
W27x114
C15x33.9
W30x148
C15x33.9
W16x57
W18x60
W16x67
W18x76
W30x124
C15x33.9
W30x148
C15x33.9
W16x40
W16x57
W16x67
W30x132
C15x33.9
W30x148
C15x33.9
W30x116
C15x33.9
W33x141
C15x33.9
W33x169
C15x33.9
32
Note: Above caps are span less 10'0" for overall length.
Consult Customer Service for wire rope hoist beam sizes.
H P C r E C o M M E n D E D B r i D g E B E A M S — E l E C T r i C H o i S T
Bridge beam sizing is based on Harrington products’ weights and speeds
1. includes 15% allowance for Electric Hoist load factor.
2. Based on Harrington’s electric chain hoist product.
3. For spans greater than 10 ft, braces between end truck and bridge beam are recommended.
Maximum Allowable Span (ft)
Capacity
(Tons)
10
15
20
24
1/2
1
S8x18.4
S8x18.4
S8x18.4
S10x25.4
S8x18.4
S10x25.4
S10x25.4
S8x18.4
S10x25.4
S12x31.8
S12x31.8
C8x11.5
2
S10x25.4
Download from Www.Somanuals.com. All Manuals Search And Download.
H a r r i n g t o n c o m p l e t e c r a n e s
Product Specification Form
Harrington Complete Crane Systems
HARRINGTON COMPLETE CRANE SYSTEMS
Quantity
Capacity
Span
_____
_____ (Ton)
_____
Voltage
_____ (If Motorized)
_____
Runway Length
Crane Type
Structure
_____ Single Girder _____ Double Girder
_____ Top Running _____ Underhung
_____ Rail Size (If Top Running) _____ Runway Beam Size (If Underhung)
Bridge Travel
(If Motorized)
(If Geared)
_____ Motorized _____ Push _____ Geared
_____ Single Speed _____ Dual Speed _____ VFD _____ Desired Speed
_____ Hand Chain Drop (feet)
Specials:
___________________________________________________
_____ Required _____ Existing _____ Beam Spec. (If Existing)
Bridge Beam
33
Hoist Type
Lift
_____ Manual Chain _____ Electric Chain _____ Electric Wire Rope
_____ Feet
(If Electric)
_____ Single Speed _____ Dual Speed _____ VFD _____ Desired Speed
Options:
Specials:
_____ Canvas Chain Container
___________________________________________________
Trolley Type
(If Motorized)
(If Geared)
_____ Motorized _____ Push _____ Geared
_____ Single Speed _____ Dual Speed _____ VFD _____ Desired Speed
_____ Hand Chain Drop (feet)
Specials:
___________________________________________________
Form completed by:
Name ________________________________________ Company ____________________________________
Phone _______________________________________ Fax _________________________________________
Address ____________________________________ City _________________ State ____ Zip _______
E-Mail Address _______________________________ Copy & fax to 717-665-7432
Download from Www.Somanuals.com. All Manuals Search And Download.
Options
Flat Cable Festooning
Warning Devices
• Lights
• Roving pendant
• Hoist/trolley power
• Runway—crane power
• Audible alarms
Enclosed Conductor Electrification
Variable Frequency Control
• Multiple speeds
• Bridge
• Runway
• Infinitely variable speeds
Multiple Hoists on Single Bridge
Power Supply—Other Voltages Available
Interlocking Bridges
• Programmable acceleration and deceleration
Remote Control
• Radio
• Infrared
• Wall-mounted pendant (hard-wired)
Patented Track Runway Applications
(3 1/4" and above)
24V Control Voltage
Travel Limit Switches
Load Limiting Device
(110V is standard)
NEMA 4, 4X, 12, or 13 Bridge Control Box
(NEMA 1 is standard)
Special Applications
NEMA 4 or 4X Pendant
34
Download from Www.Somanuals.com. All Manuals Search And Download.
|