Understanding Operational And Over Travel Upper Limit Switch Requirements For ...
As an important element of overhead handling safety, upper limit switches are electro-mechanical devices used throughout crane, hoist, and monorail installations. When applied to wire rope hoists, upper limit switches restrict their lifting motion at a certain point to prevent ...
Why Emergency Stops Are Required For Powered Below The Hook ...
Operations utilizing overhead lifting and handling equipment often use below the hook devices to connect a load to the hook. There are a variety of below the hook attachments available in the market to accommodate a broad range of handling ...
Requirements For Safely Cutting Off Crane And Hoist Power In ...
For safety, it is important for personnel to be able to cut the power on overhead cranes and hoists during operation—independently of the operating controls—in the event of an emergency or during a maintenance session. For that reason, an emergency ...
When Should Conductor Bars In Overhead Lifting Systems Be Guarded?
Used to electrify and power overhead crane, monorail, and hoist systems along the runway to power the bridge, or along the bridge to power the trolley, conductor bar systems are typically guarded or isolated with a cover or insulation. This ...
Grounding Requirements When Powering An Overhead Lifting System With Bare ...
Conductor bar systems are frequently used to supply power to and electrify an overhead crane and hoist. They can be used on both indoor and outdoor overhead lifting systems. The Occupational Health and Safety Administration standard OSHA 1910.179 defines two ...
End Stops: Best Practices For Specifying And Using In Overhead ...
End stops mark the end of a rail in an overhead crane or monorail system. Located at the termination point of the running surface for bridge and trolley travel, these fixed devices provide a physical barrier that fully engages the ...
How Trolley And Bridge Bumpers Stop Structural Damage To Cranes, ...
Functioning much like the bumper on an automobile, trolley and bridge bumpers are devices that absorb the energy and reduce the impact when a moving crane or hoist trolley reaches the end of its permitted travel — or when two ...
Understand The Basics Of Load Test Requirements
A load test is performed to verify that a specific crane or hoist will safely perform all of its functions while supporting a test load whose weight is at least equal to the equipment’s rated capacity. Because load tests confirm ...
Alert Personnel To Overhead Crane Operation With Audible And Visual ...
Warning devices, including both audible alarms that emit an unusual sound and visual alarms that illuminate or flash repeating patterns of light, should be used on both indoor and outdoor overhead cranes whose lifting, lowering, and movement functions are powered. ...
Keep Overhead Bridge Crane Rails Free Of Debris With Rail ...
While keeping crane runway beams and girders clear of any foreign objects, dirt, or debris that might impede the travel of an overhead crane is a best practice for all operations, there’s always the chance that something might land on ...