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// CODE SNIPPET

1926.1435(e)(5)(iii) Anti Two-Blocking Device

OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1435 Tower Cranes > 1926.1435(e) Operational Aids > 1926.1435(e)(5) Category I Operational Aids and Alternative Measures > 1926.1435(e)(5)(iii) Anti Two-Blocking Device
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The tower crane must be equipped with a device which automatically prevents damage from contact between the load block, overhaul ball, or similar component, and the boom tip (or fixed upper block or similar component). The device(s) must prevent such damage at all points where two-blocking could occur. Temporary alternative measures: Clearly mark the cable (so it can be seen by the operator) at a point that will give the operator sufficient time to stop the hoist to prevent two-blocking, or use a spotter who is in direct communication with the operator to inform the operator when this point is reached.

Related Code Sections


1926.1416(d)(3) Cranes & Derricks in Construction, Anti Two-Blocking Device
or similar component), or warns the operator in time for the operator to prevent two-blocking. The device must prevent such damage/failure or provide ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1416 Operational Aids > 1926.1416(d) Category I Operational Aids and Alternative Measures > 1926.1416(d)(3) Anti Two-Blocking Device
1926.1435(e)(5)(iii) Cranes & Derricks in Construction, Anti Two-Blocking Device
component, and the boom tip (or fixed upper block or similar component). The device(s) must prevent such damage at all points where two-blocking could ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1435 Tower Cranes > 1926.1435(e) Operational Aids > 1926.1435(e)(5) Category I Operational Aids and Alternative Measures > 1926.1435(e)(5)(iii) Anti Two-Blocking Device
1926.1416(d)(3)(ii)(D) Cranes & Derricks in Construction, Temporary Alternative Measures
to prevent two-blocking, or use a spotter ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1416 Operational Aids > 1926.1416(d) Category I Operational Aids and Alternative Measures > 1926.1416(d)(3) Anti Two-Blocking Device > 1926.1416(d)(3)(ii) Lattice Boom Cranes > 1926.1416(d)(3)(ii)(D) Temporary Alternative Measures
1926.1439(b) Cranes & Derricks in Construction,
Section 1926.1416(d)(3) (Anti two-blocking device) does not apply ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1439 Dedicated Pile Drivers > 1926.1439(b)
1926.1416(d)(3)(ii)(C) Cranes & Derricks in Construction, Exception
The requirements in paragraphs (d)(3)(ii)(A) and (B) of this section do not apply to such lattice boom equipment when used for dragline, clamshell ...
OSHA 1926 Construction > CC Cranes & Derricks in Construction > 1926.1416 Operational Aids > 1926.1416(d) Category I Operational Aids and Alternative Measures > 1926.1416(d)(3) Anti Two-Blocking Device > 1926.1416(d)(3)(ii) Lattice Boom Cranes > 1926.1416(d)(3)(ii)(C) Exception
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