ASME B30.10-2019 pdf download
ASME B30.10-2019 pdf download.Hooks.
When the hookis a componentofequipmentaddressed by another B30 volume, the user (operator) and mainte- nance training requirements ofthatvolume shall apply in addition to the requirements of this Volume. Hookusers and maintenance personnel shall be trained in the selection, inspection, cautions to personnel, effects of environment, and operating practices, as covered by this Chapter and other volumes of the B30 Standard, where hooks are used. 10-1.2.1 Sources of User (Operator) and Maintenance Training Examples of training material sources are as follows: (a) information provided by the equipment manufac- turer (b) information available from trade associations (c) governmenttrainingresources, such as the Depart- ment of Labor (d) organized labor groups (e) courses, seminars, and literature offered by manu- facturers ofhooks, consultants, trade schools, continuing education schools, and employers (f) requirements and recommendations found in national consensus standards, such as this Volume SECTION 10-1.3: MATERIALS AND COMPONENTS (a) The hook material shall have sufficient ductility to permanently deform before losing the ability to support theloadatthetemperaturesatwhichthespecifichookwill be used. (b) The hookandhook-securingdevice shall beofsuffi- cient strength and design factor for the rated load and application. (c) When a latch is provided, it shall be designed to retain such items as, but not limited to, slings and rigging hardware under slack rigging conditions only. The latch is not intended to support the load.
Hooks shall be forged, cast, stamped orwelded, and heat treated by the manufacturer. (b) Shank hook-securing devices shall have thread or shank diameter and length as recommended by the man- ufacturer or qualified person. SECTION 10-1.5: DESIGN FACTOR The hook shall be designed to withstand all stresses imposed under normal operating conditions while han- dling loads within the rated load. Hook design factor shall, as a minimum, conform to those specified for the equipment or system in which the hook is a component. SECTION 10-1.6: RATED LOADS Rated load for hooks shall be in accordance with the requirements as defined for the equipment or system in which the hook is being utilized or as recommended by a qualified person. SECTION 10-1.7: PROOF TEST REQUIREMENTS (a) When prooftests are used to verify manufacturing process, material, orconfiguration, the hooks shall be able to withstand the proof load application without perma- nentdeformation when the load is applied. This condition shallbeconsideredtohavebeensatisfiedifthepermanent increase in the throatopeningdoes notexceed 1% or 0.02 in. (0.5 mm), whichever is greater. For such tests, Table 10-1.7-1 states the proof load that shall be applied for a specified rated load. (b) For a duplex (sister) hook having a pinhole, the proof load for the pinhole shall be in accordance with Table 10-1.7-1. The proof load on the hook shall be shared equally between the two prongs of a sister hook, unless designed for unbalanced loading.Any conditions disclosed by the inspections performed in accordance with the requirements of para. 10-1.10.3 or para. 10-1.10.4 shall be corrected by repair or replacement before continuing to use the hook. All repairs and modifications shall be approved by the manufacturer or a qualified person. (b) Hooks having damage or wear described as follows shall be repaired or replaced: (1) cracks, nicks, and gouges. Repair ofcracks, nicks, and gouges shall be carried outby a designated person by grindinglongitudinally, followingthe contour ofthe hook, provided no dimension is reduced more than 10% (or as recommended by the manufacturer) ofits original value. (2) wear exceeding10% (or as recommended bythe manufacturer) of the original sectional dimension. (3) anyvisiblyapparentbendortwistfromthe plane of the unbent hook. (4) any distortion causing an increase in throat opening of5%, not to exceed 1 ∕ 4 in. (6 mm) (or as recom- mended by the manufacturer). (5) inability of self-locking hooks to lock. (c) A hook latch that is inoperative shall be repaired, replaced, or removed if not required. (d) If a required latch is inoperable and cannot be immediately repaired or replaced, the hook shall be suffi- ciently moused to retain loose items as defined in para. 10-1.3(c) until the latch is repaired or replaced. (e) When reassembling shank hooks, original securing methods or manufacturer’s recommendations shall be followed. (f) All replacement parts shall be at least equal to the original manufacturer’s specifications.
