Monthly Archives: May 2023

Figure 7‐3 Crane with an outrigger truss. The diagonal members are part of the truss that supports the platform, bridge machinery, and festoon track.
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Bridge Structure Inspections

  Item Description Points of Interest for Inspection 1 Trolley rail bolted splices. Loose and missing splice bolts, check for improper hardware.  Joint bar bolts have straight shanks to the head and are made per ASTM A449.  Nuts are per A563 grade B.   A325 bolts and nuts may also be used.  Check/tighten splice bolts every 3 months.  Fasteners should include a helical spring l...
Eye Self Locking Hook
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Eye Self Locking Hook

An eye self-locking hook is a type of hook used for lifting and rigging heavy loads. It is designed with a self-locking mechanism that helps to prevent accidental disconnection of the load. The hook has a latch or locking mechanism that must be manually opened to insert or remove the load, and then closes automatically to secure the load in place. The "eye" in the name refers to the shape of th...
Double Girder Wire Rope Hoist
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Double Girder Wire Rope Hoist

A double girder wire rope hoist is a type of material handling equipment used in industries such as manufacturing, construction, and mining. It is designed to lift and move heavy loads vertically and horizontally. The double girder wire rope hoist consists of two parallel girders mounted on top of the building structure or on a freestanding framework. A trolley with a hoisting mechanism travels...
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