OSHA requirements are set by statute, standards and regulations. Our interpretation letters explain these requirements and how they apply to particular circumstances, but they cannot create additional employer obligations. This letter constitutes OSHA's interpretation of the requirements discussed. Note that our enforcement guidance may be affected by changes to OSHA rules. Also, from time to time we update our guidance in response to new information. To keep apprised of such developments, you can consult OSHA's website at http://www.osha.gov.
UC BERKELEY CRANE/HOIST SAFETY PROGRAM Page 8 of 43 Types of Cranes/Hoists/Rigging Cranes and Components Type of crane which lifts objects by a hoist that is fitted in a trolley and can move horizontally on overhead rails riding on top of support beams located well above a floor and a permanent part of a building’s structure. Load Test Procedure For Bridge, Gantry, Jib Cranes, and Monorail Systems Mobile App. Once the Load Test Procedure form has been completed with the load testing results, the load equipment testing procedures app saves the results for your lifting operation and crane loading testing records.
November 10, 1993
Mr. Al Willis
Safety Director
Barnard Construction Company, Inc.
P.O. Box 99
Bozeman, Montana 59771-0099
Safety Director
Barnard Construction Company, Inc.
P.O. Box 99
Bozeman, Montana 59771-0099
Dear Mr. Willis:
This is in response to your August 31 letter requesting a compliance determination from the Occupational Safety and Health Administration (OSHA) regarding the acceptability of load testing a crane to 110% of its capacity in order to meet contractual requirements. I apologize for the delay in responding to your inquiry.
As stated in the August 23, 1993, letter to you from Mr. Timothy Ritter of Grove North America, OSHA does not require a routine test that exceeds the rated capacity of the crane. Overload tests are only required of new cranes and after the crane has been repaired or rerated. Therefore, all other overload tests must be performed according to the manufacturers specifications and limitations as required by 1926.550(a)(1).
If we can be of any further assistance, please contact me or Mr. Dale Cavanaugh of my staff at (202) 219-8136.
Sincerely,
Roy F. Gurnham, P.E., Esq.
Director
Office of Construction and Maritime
Compliance Assistance
August 31, 1993
Roy F. Gurnham, P.E., Esq.
Director
Office of Construction and Maritime
Compliance Assistance
August 31, 1993
Director of Compliance Assistance
U.S. Department of Labor - OSHA
200 Constitution Ave., N.W. Room N3610
Washington, DC 20210
U.S. Department of Labor - OSHA
200 Constitution Ave., N.W. Room N3610
Washington, DC 20210
Dear Sir:
We have a request by the Bureau of Reclamation (BOR) to load test cranes to 110% of capacity. I have requested information from two crane manufacturers to see if we can do this. My understanding from the answers is we can load test cranes to that capacity if the test is to meet requirements for ANSI B 30.5.
A copy of correspondence with the two crane manufacturers and an excerpt of the section of Construction Safety Standards of the BOR are enclosed.
Will we be within OSHA standards to load test a crane to 110% capacity for contractual requirements which are not part of meeting ANSI B 30.5?
Sincerely,
Al Willis
Safety Director
August 9, 1993
Al Willis
Safety Director
August 9, 1993
Grove Manufacturing Company
Box 21
Shady Grove, PA 17256
Box 21
Shady Grove, PA 17256
Dear Sir:
We have been requested by an owner we work for to load test each of our cranes to 110% of their rated capacities.
![Types Eot Crane Testing Procedure Types Eot Crane Testing Procedure](/uploads/1/2/4/8/124896281/113992648.jpg)
As you are probably aware: OSHA 1926.550(a)(1) states:
'The employer shall comply with the manufacturer's specifications and limitations applicable to the operation of any and all cranes and derricks.'
![Types Eot Crane Testing Procedure Types Eot Crane Testing Procedure](/uploads/1/2/4/8/124896281/833508175.jpg)
We read in your operator's manual not to exceed the rated capacity of the crane. I have two questions:
1. Is making a test lift of 110% exceeding the rated limitation capacity of the crane?
2. If it is exceeding the limitations rating of the crane, may we have permission to test lift to 110% of the crane's capacity so we will be in compliance with OSHA 1926.550(a)(1)?
Sincerely,
Al Willis
Safety Director
August 23, 1993
Al Willis
Safety Director
August 23, 1993
Barnard Construction Company, Inc.
P.O. Box 99
Bozeman, MT 59771-0099
P.O. Box 99
Bozeman, MT 59771-0099
Attention: Al Willis
RE: 'Overload' Testing - Grove Cranes
I am responding to the questions from your 9 August 1993 letter:
1 - 'Is making a test lift of 110% exceeding the rated limitation capacity of the crane'?
RESPONSE: The capacities printed on a Grove crane's load chart are the maximum rated capacities for that crane. Lifting 110% of a rated capacity value for a given crane set-up configuration would be exceeding the capacity of the crane.
2 - 'If it is exceeding the limitations rating of the crane, may we have permission to test lift to 110% of the crane's capacity so we will be in compliance with OSHA 1926.550(a)(1)'?
RESPONSE: Neither OSHA nor Grove requires any type of routine load test where it is necessary to exceed a crane's rated capacity. Overload testing is only required as a proof test when the crane is first built and when the crane is repaired or rerated. Any overload testing that must be done after repairs and re-rates of the crane can only be performed with the manufacturer's written permission and according to the manufacturer's guidelines. Any other type of 'load testing' must be performed at 100% or less of the crane's rated capacity.
I hope that I have satisfactorily addressed your concerns. If you have any further questions regarding load testing please contact your local authorized Grove Distributor or Grove's Product Support department.
Sincerely,
GROVE NORTH AMERICA
Timothy A. Ritter
Product Safety & Reliability Engineer
August 9, 1993
GROVE NORTH AMERICA
Timothy A. Ritter
Product Safety & Reliability Engineer
August 9, 1993
Manitowoc Engineering Co.
P.O. Box 70
Manitowoc, WI 54221-0070
P.O. Box 70
Manitowoc, WI 54221-0070
Dear Sir:
We have been requested by an owner we work for to load test each of our cranes to 110% of their rated capacities.
As you are probably aware: OSHA 1926.550(a)(1) states:
'The employer shall comply with the manufacturer's specifications and limitations applicable to the operation of any and all cranes and derricks.'
We read in your operator's manual not to exceed the rated capacity of the crane. I have two questions:
1. Is making a test lift of 110% exceeding the rated limitation capacity of the crane?
2. If it is exceeding the limitations rating of the crane, may we have permission to test lift to 110% of the crane's capacity so we will be in compliance with OSHA 1926.550(a)(1)?
Sincerely,
Al Willis
Safety Director
August 20, 1993
Al Willis
Safety Director
August 20, 1993
Al Willis
Barnard Construction Co., Inc.
P.O. Box 99
Bozeman, MT 59771-0099
Barnard Construction Co., Inc.
P.O. Box 99
Bozeman, MT 59771-0099
Dear Al:
Subject: Manitowoc Liftcrane Field Test Policy
To certify the integrity of our cranes, Manitowoc Engineering Co. policy, consistent with ANSI B30.5 Code which is adopted by OSHA, is to allow crane user to lift test loads to maximum 10 percent over rated chart capacities.
Machine must be equipped and operated as noted on applicable capacity chart.
Any questions, please call.
Sincerely,
MANITOWOC ENGINEERING CO.
Todd W. Berg
Crane Sales Representative
MANITOWOC ENGINEERING CO.
Todd W. Berg
Crane Sales Representative
Electric overhead traveling crane or EOT crane is one of the most common types of overhead crane, or called bridge cranes, which consist of parallel runways with a traveling bridge spanning the gap.[1] As obvious from the name, EOT crane is operate by electric, generally there is an operator cabin or a control pendant along with the EOT crane.
- 1Applications of EOT crane
Applications of EOT crane[edit]
EOT crane is extensively used in the warehouse, workshop, and stock ground of pilining, unloading or relocating heavy load.[2] Generally speaking, the EOT crane is equipped with the mechanical means to realize the traveling not only in both directions but also can raise or lower the heavy load easily. But should pay attention to that EOT crane is forbidden to used in the explosive, combustible or corrosive environment, and the working temperature is approximately from -20℃ to 40℃.[citation needed]
Single girder EOT crane[edit]
As the name shown, single girder EOT crane has one main girder, which is easy to install and requires less maintenance. The most common single girder EOT cranes are as follows:
- LD type single girder EOT crane
- LDP type single girder EOT crane and
- HD type single girder EOT crane
Double girder EOT crane[edit]
- QD type hook double bridge crane
- LH electric hoist double girder bridge crane
- NLH type double girder EOT crane
References[edit]
- ^Bhatia, A. (2014). Overview of Electric Overhead Traveling (Eot) Cranes. Createspace Independent Pub. ISBN9781502515933. Retrieved 26 July 2018.
- ^Davison, Buick; Owens, Graham W. (2008). Steel Designers' Manual: The Steel Construction Institute. John Wiley & Sons. p. 965. ISBN9781405148184. Retrieved 26 July 2018.
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