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// CODE SNIPPET

1926.1437(n) Land Cranes/Derricks

OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1437 Floating Cranes/Derricks and Land Cranes/Derricks on Barges > 1926.1437(n) Land Cranes/Derricks
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For land cranes/derricks used on barges, pontoons, vessels or other means of flotation, the employer must ensure that:

1926.1437(n)(1)

The rated capacity of the equipment (including but not limited to modification of load charts) applicable for use on land is reduced to:

1926.1437(n)(1)(i)

Account for increased loading from list, trim, wave action, and wind.

1926.1437(n)(1)(iii)

The conditions required in paragraphs (n)(3) and (n)(4) of this section are met.

1926.1437(n)(1)(ii)

Be applicable to a specified location(s) on the specific barge, pontoons, vessel or other means of flotation that will be used, under the environmental conditions expected and encountered.

1926.1437(n)(2)

The rated capacity modification required in paragraph (n)(1) of this section is performed by the equipment manufacturer, or a qualified person who has expertise with respect to both land crane/derrick capacity and the stability of vessels/flotation devices.

1926.1437(n)(3) For List and Trim

1926.1437(n)(3)(i)

The maximum allowable list and the maximum allowable trim for the barge, pontoon, vessel or other means of flotation must not exceed the amount necessary to ensure that the conditions in paragraph (n)(4) of this section are met. In addition, the maximum allowable list and the maximum allowable trim does not exceed the least of the following: 5 degrees, the amount specified by the crane/derrick manufacturer, or, when, an amount is not so specified, the amount specified by the qualified person.

1926.1437(n)(3)(ii)

The maximum allowable list and the maximum allowable trim for the land crane/derrick does not exceed the amount specified by the crane/derrick manufacturer, or, when, an amount is not so specified, the amount specified by the qualified person.

1926.1437(n)(4) For the Following Conditions:

1926.1437(n)(4)(i)

All deck surfaces of the barge, pontoons, vessel or other means of flotation used are above water.

1926.1437(n)(4)(ii)

The entire bottom area of the barge, pontoons, vessel or other means of flotation used is submerged.

1926.1437(n)(5)

Physical attachment, corralling, rails system and centerline cable system meet the requirements in Option (1), Option (2), Option (3), or Option (4) of this section, and that whichever option is used also meets the requirements of paragraph (n)(5)(v) of this section.

1926.1437(n)(5)(i) Option (1)--Physical Attachment

The crane/derrick is physically attached to the barge, pontoons, vessel or other means of flotation. Methods of physical attachment include crossed-cable systems attached to the crane/derrick and vessel/flotation device, bolting or welding the crane/derrick to the vessel/flotation device, strapping the crane/derrick to the vessel/flotation device with chains, or other methods of physical attachment.

1926.1437(n)(5)(iii) Option (3)--Rails

The crane/derrick must be prevented from shifting by being mounted on a rail system. Employers must ensure that rail clamps and rail stops are used unless the system is designed to prevent movement during operation by other means

1926.1437(n)(5)(iv) Option (4)--Centerline Cable System

The crane/derrick is prevented from shifting by being mounted to a wire rope system. The employer must ensure that the wire rope system meets the following requirements:

1926.1437(n)(5)(iv)(A)

The wire rope and attachments are of sufficient size and strength to support the side load of crane/derrick.

1926.1437(n)(5)(iv)(B)

The wire rope is attached physically to the vessel/flotation device.

1926.1437(n)(5)(iv)(C)

The wire rope is attached to the crane/derrick by appropriate attachment methods (such as shackles or sheaves) on the undercarriage, and that the method used will allow the crew to secure the crane/derrick from movement during operation and to move the crane/derrick longitudinally along the vessel/flotation device for repositioning.

1926.1437(n)(5)(iv)(D)

Means are installed to prevent the crane/derrick from passing the forward or aft end of the wire rope attachments.

1926.1437(n)(5)(iv)(E)

The crane/derrick is secured from movement during operation.

1926.1437(n)(5)(v)

The systems/means used to comply with Option (1), Option (2), Option (3), or Option (4) of this section are designed by a marine engineer, registered professional engineer familiar with floating crane/derrick design, or qualified person familiar with floating crane/derrick design.

1926.1437(n)(5)(ii) Option (2)--Corralling

The crane/derrick is prevented from shifting by installing barricade restraints (i.e., a corralling system). Employers must ensure that corralling systems do not allow the equipment to shift by any amount of shifting in any direction.

1926.1437(n)(6) Exception

For mobile auxiliary cranes used on the deck of a floating crane/derrick, the requirement specified by paragraph (n)(5) of this section to use Option (1), Option (2), Option (3), or Option (4) does not apply when the employer demonstrates implementation of a plan and procedures that meet the following requirements:

1926.1437(n)(6)(i)

A marine engineer or registered professional engineer familiar with floating crane/derrick design develops and signs a written plan for the use of the mobile auxiliary crane.

1926.1437(n)(6)(iii)

The plan specifies the areas of the deck where the mobile auxiliary crane is permitted to be positioned, travel, and operate, and the parameters and limitations of such movements and operation.

1926.1437(n)(6)(iv)

The deck is marked to identify the permitted areas for positioning, travel, and operation.

1926.1437(n)(6)(v)

The plan specifies the dynamic and environmental conditions that must be present for use of the plan.

1926.1437(n)(6)(vi)

If the dynamic and environmental conditions in paragraph (n)(6)(v) of this section are exceeded, the mobile auxiliary crane is attached physically or corralled in accordance with Option (1), Option (2) or Option (4) of paragraph (n)(5) of this section.

1926.1437(n)(6)(ii)

The plan is designed so that the applicable requirements of this section are met despite the position, travel, operation, and lack of physical attachment (or corralling, use of rails or cable system) of the mobile auxiliary crane.

1926.1437(n)(7) The Barge, Pontoons, Vessel or Other Means of Flotation Used:

1926.1437(n)(7)(i)

Are structurally sufficient to withstand the static and dynamic loads of the crane/derrick when operating at the crane/derrick's maximum rated capacity with all anticipated deck loads and ballasted compartments.

1926.1437(n)(7)(iii)

Have access to void compartments to allow for inspection and pumping.

[75 FR 48169, August 9, 2010]

1926.1437(n)(7)(ii)

Have a subdivided hull with one or more longitudinal watertight bulkheads for reducing the free surface effect.

Related Code Sections


1926.1437(n) Cranes & Derricks in Construction, Land Cranes/Derricks
For land cranes/derricks used on barges, pontoons, vessels or other means of flotation, the employer must ensure ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1437 Floating Cranes/Derricks and Land Cranes/Derricks on Barges > 1926.1437(n) Land Cranes/Derricks
1926.1437(n)(2) Cranes & Derricks in Construction,
has expertise with respect to both land crane/derrick capacity and the stability of vessels/flotation devices ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1437 Floating Cranes/Derricks and Land Cranes/Derricks on Barges > 1926.1437(n) Land Cranes/Derricks > 1926.1437(n)(2)
1926.1437(n)(3) Cranes & Derricks in Construction, For List and Trim
The maximum allowable list and the maximum allowable trim for the land crane/derrick does not exceed the amount specified by the crane/derrick ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1437 Floating Cranes/Derricks and Land Cranes/Derricks on Barges > 1926.1437(n) Land Cranes/Derricks > 1926.1437(n)(3) For List and Trim
1926.1437(n)(4) Cranes & Derricks in Construction, For the Following Conditions:
All deck surfaces of the barge, pontoons, vessel or other means of flotation used are above water ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1437 Floating Cranes/Derricks and Land Cranes/Derricks on Barges > 1926.1437(n) Land Cranes/Derricks > 1926.1437(n)(4) For the Following Conditions:
1926.1437(n)(5) Cranes & Derricks in Construction,
The crane/derrick is physically attached to the barge, pontoons, vessel or other ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1437 Floating Cranes/Derricks and Land Cranes/Derricks on Barges > 1926.1437(n) Land Cranes/Derricks > 1926.1437(n)(5)
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