Asme b30 2 2016 free download

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Grapples may be modified or ation of hydraulically operated scrap and material-han- rerated, provided such modifications are analyzed and dling grapples. A rerated grapple or one whose components have been modified shall be tested according to para.

The inspection may be limited to the provisions affected by the alteration, The load-bearing structural components person. Inspection procedures for imposed by the weight of its rated capacity plus the grapples in regular service are divided into two general weight of the grapple, with a minimum design factor classifications, based upon the intervals at which the of three, based on the yield strength of the material, and inspections shall be performed.

All welding shall be in accordance with deterioration, or malfunction. Visual examination by the 1 evidence of leakage at the surface of flexible operator or other designated persons with records not hose or its junction with metal couplings required.

Visual inspection by a quali- c hydraulic motors: fied person making records of apparent external condi- 1 loose bolts or fasteners tions to provide the basis for a continuing evaluation. For all grapples, inspect A grapple that has been idle for a period of 1 month a structural members for deformation, cracks, or or more should be given an inspection conforming with excessive wear on any part of the grapple the requirements of para.

Any deficiencies, such as those listed below, shall be examined by a qualified person and determina- These a New and reinstalled grapples shall be tested by, inspections shall include the requirements of para. This test may 3 storage of the grapple to protect it from damage be limited to the provisions affected by the alteration, 4 not exceeding the rated capacity of the grapple repair, or modification, as determined by a qualified nor the material handler by the combined weight of the person with guidance from the manufacturer.

A maintenance program a The operator shall give attention to the operation should be established and be based on recommenda- of the grapple during a lifting sequence. Whenever there is any doubt its controls, the following precautions shall be taken: as to safety, the operator shall consult with the desig- a all sources of grapple power shall be discon- nated person before handling the load. However, the operator shall before loosening or removing hydraulic components obey a stop order at all times, no matter who gives it.

Any deficiency observed shall 2 Only qualified personnel shall perform mainte- be carefully examined by a designated person. If the nance and tests when required. If any controls do not operate prop- 5 Dated records of repairs and replacements erly, they should be adjusted or repaired before opera- should be made. Adjustments and repairs shall be done under of the load.

Instructions should rated load or handle any load for which it is not include, but not be limited to, the following: designed. Missing or g The operator shall avoid carrying the load over illegible markings or tags shall be replaced. These replies are taken verbatim from the original letters except for a few typographical corrections and some minor editorial corrections made for the purpose of improved clarity.

In some few instances, a review of the interpretation revealed a need for corrections of a technical nature; in these cases, a corrected interpretation follows immediately after the original reply. These interpretations were prepared in accordance with the accredited ASME procedures. ASME procedures provide for reconsideration of these interpretations when or if additional information is available that the inquirer believes might affect the interpretation.

Reply 1 : See Reply 4. Question 2 : Is the design factor mentioned in para. Reply 2 : See Reply 4. Question 3 : Parameters for the design factor could be separated into two main categories: design parameters and material parameters. Design parameters might include the use of curved beam theory for the calculations, analysis using a linear elastic response, the size factor of the device, the reliability of the device, and the temperature of the device.

Having made the above classifications, can it be interpreted that the design factor established in para. Reply 3 : See Reply 4. Question 4 : If the assumption made in Question 3 is not correct, which modifying parameters for design factors are to be included before the application of the design factor of 3?

Reply 4 : Paragraph Analysis or actual maximum working stresses must be determined based upon working conditions including impact or any other factors pertinent to the application. Actual maximum working stresses must be equal to or less than the allowable stress.

The intent of para. The Standard is designed to guard against and minimize injury to workers and otherwise provide protection of life, limb, and property by prescribing safety requirements. This Standard is not a design standard and does not preclude applicable standards whose guidelines result in lower allowable stresses.

Reply: No. A minimum design factor of 3, based on yield strength, was chosen to minimize the probability of lifter failure due to normal variability and uncertainty arising from design manufacturing and use of below-the-hook lifters.

What is the intention of para. Reply 2 : Please see Reply 1. Question 3 : In para. Reply 3 : Subjects not covered within the B The ASME B30 Standards Committee is presently developing the standardization of design criteria for below- the-hook lifting devices, which will address this subject.

Reply 1 : No. Question 2 : Do any of the recommendations or requirements defined in para. Reply 2 : No. Question 3 : If there are recommendations or requirements that are defined in para. If the lifting device is made up of several lifters, each detachable from the group, these lifters shall also be marked with their individual rated loads. Reply 1 : Each combination shall be marked on the one main lifting component with its rated load. If three individual subcomponents are not lifting devices in and of themselves they need not be marked with the rated load.

Question 2 : Paragraph A rerated lifter or one whose components have been modified shall conform to para. New rated load shall be displayed in accordance with para. Reply 2 : Each combination shall be tested, and if the three individual subcomponents are lifting devices in and of themselves they shall be individually tested. Question 3 : Paragraph Reply 3 : Yes, the equipment manufacturer or a qualified person. Question 4 : Paragraph Is it required to test a modified lifting device?

Reply 5 : Yes, see Reply 4 for the type of tests to be performed. Reply 6 : No. An engineering degree alone does not fulfill the requirements for a qualified person, unless the degree is in the applicable field and the person has successfully demonstrated the ability to solve or resolve problems related to the subject matter and work. Question 3 : Do I need to be a licensed P. Reply 3 : No. Question 4 : What documentation is required to ensure that the guidelines specified in para. Reply 4 : The form documentation is beyond the scope of this volume.

Question 5 : Does a lifting device have to be made from a certified drawing that has been approved by a Licensed Engineer? Reply 5 : No. Reply 6 : See Reply 4. Reply 7 : It is not the purpose of para. Passing this test does not verify that the lifter meets the minimum design factor requirements of para. Calculations can be performed to verify the design factor. Simply mail, phone, fax, or E-mail us and an Information Central representative will handle your request.

Information as to whether or not technical inquiries are issued to this code or standard is shown on the copyright page. All technical inquiries must be submitted in writing to the staff secretary.

Additional procedures for inquiries may be listed within. Related Papers. Design of Below-the-Hook Lifting Devices. By rich dad. By Dibyendu SS. Download pdf. Log in with Facebook Log in with Google. Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link. Need an account? Click here to sign up. For spacing, number of operation of the device. Wire rope clips attached with U-bolts shall have the U-bolt over the dead end of the rope a A warning device should be provided for installa- and live rope resting in the clip saddle.

Clips shall be tions where the ability of the operator to warn persons tightened evenly to the recommended torque. After the in the path of the load is impaired. Rope clip nuts should be retightened periodically to The manual shall include a rope or crane manufacturer or qualified person due general information applicable to the following: to actual working condition requirements.

If hooks are of the h wiring diagram may be supplied separately. English 3 Pictograms used to identify controls shall be 1 The wording of written non-English safety described in the manuals. The pictograms should com- information and manuals regarding use, inspection, and ply with ISO , ISO , or another recognized maintenance shall be translated into English using pro- source, if previously defined.

The text of the descriptions fessional translation industry standards, which include, shall meet the criteria of a 1 and a 2 above.

In special applications, 16 Each inspection is directed toward a differ- with para. The five types of inspection are 3 rope in accordance with para. Any deficiencies identified shall be examined examination of the crane. Any deficiencies identified shall be examined c The inspection shall include the items listed in and a determination made by a qualified person as to para.

These visual observations should be con- bearings, wheels, shafts, gears, rollers, locking and cerned with discovering gross damage, such as listed clamping devices, bumpers, and stops. Inspections need not be at equal calendar intervals and 15 lower limit device s , if provided. Verify func- should be more frequent as the rope approaches the end tion and a minimum of one wrap of rope remains on of its useful life.

The individual outer wires in the strands of the made, as necessary, in accordance with para. See para. This record should cover alteration, repair, or modification, as determined by a points of deterioration listed. Reports shall be placed on file. The speeds and crane loading s shall be deter- the trolley as close to the extreme right-hand end of the mined by a crane manufacturer or a qualified person.

Chapter Operator Training and Operation. Volume, and in manuals furnished by the manufacturer 2 performance characteristics and complexity of of the crane as required in para. The requirements the crane. Refer to disconnect, shall not be removed by any person other paras.

See Department of Labor para. National Consensus Standards such as this Volume i Persons shall stay clear of a suspended load. Crane operators shall of the rated load of the crane except during properly 1 read and be familiar with the applicable provi- authorized tests or planned engineered lifts in accor- sions of crane equipment safety standards and the dance with Section See but not limited to the crane disconnect, motion discon- paras.

The examinations shall be defined 8 perform a functional test inspection and test in. The hoist limit device that con- tions and designated boarding entrances trols the upper limit of travel of the load block shall not 20 verify that the transmitter selected is the cor- be used as an operating control in normal operation rect transmitter for the crane to be operated unless additional means are provided to prevent damage c During the Lift.

Crane operators shall from overtravel. Lift operations shall resume only after the maintain proper operation. The lower limit nals for the equipment in use. Every planned repair, or replacement has not been made engineered lift exceeding the rated load shall be treated 3 properly secure an outdoor overhead or gantry as a special and separate event. Limitations and planned crane when the crane is shut down requirements shall be applicable, as follows: 4 open the crane main line disconnect device and a Planned engineered lifts shall be limited to pow- the magnet disconnect switch when applicable before ered cranes having a load rating of 5 tons and above.

If greater lift frequency is desired, consideration shall and protected location be given to rerating or replacing the crane. Riggers assigned to a load handling activity shall at if the frequency of planned engineered lifts exceeds two a minimum be responsible for the following: during a continuous month period. The crane. All persons stood by the signalperson and the operator. Any failure to hold the load shall be corrected before proceeding with the lift.

If a lower limit Operators shall be familiar with the location, opera- device is present and the lower limit device is anticipated tion, and care of fire extinguishers provided see to be activated, the operator shall verify lower limit para. If more than one upper limit device. If the device does not operate properly, the operator Arm forefinger pointing up, move hand downward, forefinger pointing extended forward, hand open and in small horizontal circle.

Both Palm up, fingers closed, thumb down, move arm back and forth arms extended, palms down, move pointing in direction of motion, horizontally. Regular signals front of hand giving the motion palms up. Hoist slowly shown as example. Chapter Maintenance Training and Maintenance. Refer to the relative to these purposes, kinds of loads, and work- manual provided with the equipment.

Nevertheless, the requirements for certification i Not allow the wire rope or hook to be used as a as a crane maintenance person apply to all persons who ground for welding. Examples of sources of maintenance training material l Not remove or obscure the warning or safety labels, are as follows: plates, or tags furnished on the lifting equipment. Department of Labor o Apply lubricant to the rope as recommended by. Some factors that influence how The following are examples: established.

Dated records should The following are examples: be placed on file. Repairs by welding or Controller it will cause the least interference with other cranes and parts should be lubricated as recommended in the man- operations in the area. Lubricating 6 If the runway remains energized, stops or a sig- means should be checked for delivery of lubricant. Once a rope reaches any one of the 3 replaced parts and loose material shall be specified removal criteria, it may be allowed to operate removed to the end of the work shift, based on the judgment of 4 maintenance equipment shall be removed a qualified person.

The rope shall be replaced after the work shift, at the end of the day, or at the latest time The user shall contact the sheave, drum, or crane c Before cutting rope, means shall be used to prevent manufacturer, or a qualified person, for broken wire unlaying of the strands. Upon will scrape, nick, crush, or induce sharp bends.

Lubricant applied as part of a maintenance replaced. Resocketing shall not be attempted if the program shall be compatible with the original lubricant. Those sections of rope that e Replacement rope shall have the same or higher are located over sheaves or otherwise hidden during minimum breaking force as the original rope specified inspection and maintenance procedures require special by the hoist manufacturer.

Any deviation from the origi- attention when the rope is being lubricated. The object nal size, grade, or construction of the rope shall be speci- of rope lubrication is to reduce internal friction and to fied by a rope manufacturer, the crane or hoist prevent corrosion.

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