13.07.2015 Views

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

DOE-STD-1090-96, DOE Standard Hoisting and Rigging Manual ...

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

-_.._-----~------------<strong>DOE</strong>-<strong>STD</strong>-I090-<strong>96</strong> (Rev-I)iii.Bends or distortions in hooks.ii.Manufacturer's grade.iv.Rust <strong>and</strong> corrosion.v. Uneven lengths when sling legsare hanging free.iii.iv.Rated load <strong>and</strong> angle on whichthe rating is based.Reach.vi.Evidence ofheat damage.v. Number oflegs.7. Do not weld orperform local repairson chain slings. All defective chain slings shouldbe returned, through a formal procedure, to themanufacturer for examination, repair, <strong>and</strong>recertification.8. Avoid sudden loading ofchain slings.9. Maintain latches on hooks in goodcondition.10. Ifa chain sling does not look safe, donot use it. Do not assume that a chain sling is safebecause it looks new; look for stretched links. Ifin doubt, check with the supervisor.11. Do not carry loads on the point or tipofahook.12. Avoid unbalanced loads.13. Do not use homemade links, makeshiftfasteners formed from bolts, rods, <strong>and</strong> the like, orother nonst<strong>and</strong>ard attachments.14. Do not use makeshift orfield-fabricated hooks on steel-chain slings.15. Hook the ends ofall empty chain ontothe hoist hook or bull ring..16. Ensure that steel-chain slings used in<strong>DOE</strong>-controlled areas are marked, at a minimum,with:i. Size.vi.vii.Sling manufacturer.Inspection due date.17. This information maybe stenciled orstamped on a metal tag or tags affixed to the sling.18. Where slings have more than one leg,ensure that the tag is affixed to the master linle19. Ensure that the working load does notexceed the rated capacity ofthe sling.11.3.4 Metal-Mesh Slingsa. Metal-mesh slings (Figure 11-16) shall beclassified with the designations shown inTable 11-12, based on types ofduty <strong>and</strong> materialclassification.Table 11-12. Metal-mesh slingdesignations.Tyoe Classification DesignationHeavy duty Carbon steel 35-C8Stainless steel 35-8SMedium dUty Carbon steel 43-CSStainless steel 43-88Light dUty Carbon steel 59-C8Stainless steel 59-SSb. The carbon steel used in metal-mesh slingsshall be processed to produce the requiredmechanical properties.Chapter 11Wire Rope <strong>and</strong> Slings 11-26

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!