ASME B30.24-2008 pdf – Container Cranes.
24-1.4.2 Welded Construction
Welding procedures and welding operator qualifications to be used on load-sustaining members shall be in accordance with ANSI/AWS D1.1, except as modified by ANSI/AWS D14.1. Where special steels are used, the manufacturer or qualified person shall provide welding procedures.
24-1.4.3 Crane Structural Members
Cranes shall be constructed to withstand all stresses imposed on members and components under normal operating conditions when installed and handling loads not exceeding the manufacturer’s load ratings.
24-1.4.4 Truck Frame Drop
Means shall be provided to limit the drop of a rail- mounted crane’s trolley and gantry truck frames to a maximum of 1 in. (25.4 mm) in case of wheel or axle breakage.
24-1.4.5 Machinery House
(a) The machinery house, when furnished, shall be weather-resistant and equipped with two doors for egress. The doors shall be equipped with latches to hold the doors in the closed position. Hinged doors shall open outward.
(b) Machinery shall be arranged to be accessible for repair, maintenance, lubrication, and inspection.
24-1.4.6 Gantry Drive
The gantry drive shall provide adequate traction and power under normal operating conditions to include acceleration and deceleration with and against the specified operating wind.
24-1.4.7 Spreader
(a) The spreader shall be constructed so that the twist- locks will engage the corner castings of intermodal shipping containers.
(b) The control of the spreader shall be from the operator’s cab.
(c) A suitable mechanical, hydraulic, and/or electrical interlocking system(s) shall be provided to prevent unlocking the twist-locks when carrying a container and to prevent locking action of the twist-lock system until all twist-locks are seated in the corner castings.
(d) A means shall he provided to enable the operator to determine that the container corner castings have been properly engaged.
24-1.4.8 Electromagnetic Interference
For cranes operating in areas susceptible to electromagnetic interference (EMI), crane electrical systems shall be shielded and grounded to protect from EMI.
24-1.4.9 Guards for Moving Parts
Exposed moving parts, such as gears, set screws, projecting keys, chains, and chain sprockets, which constitute a hazard, shall be guarded with guards meeting the requirements of ANSI B15.1.
24-1.4.10 Service Cranes
Service cranes shall be designed, constructed, and installed in accordance with the applicable ASME B30 volume.
24-1.4.11 Lubrication Accessibility
Lubricating points shall be accessible from walkways, floors, or platforms.
24-1.4.12 Fire Extinguishers
A portable fire extinguisher with a minimum extinguisher rating of 10 BC shall be installed at the following locations:
(a) in the cab.
(b) at each door of the machinery house, if provided. If the machinery house has only one door, an additional fire extinguisher should be located at the far end from the door.
(c) in the diesel engine/generator compartment, if provided.
24-1.4.13 Modifications
(a) Cranes may be modified or rerated by or under the direction of a qualified person or the crane manufacturer.
(b) A rerated crane or one whose load-supporting components have been modified shall be tested in accordance with para. 24-2.2.2.
(c) The new rated load shall be displayed in accordance with Section 24-1.1.
(d) Documentation verifying compliance with the requirements of this Volume, including calculations and drawings, shall be retained when cranes are modified or rerated.
24-1.5.1 Cab Design and Construction
(a) The cab shall be designed and constructed to withstand the stresses imposed on it under normal operating conditions.
(b) The cab shall be constructed and attached to the crane to minimize swaying and vibrations.
(c) Cabs shall be constructed of fire-resistant material.
(d) The operator’s cab shall be designed and mounted in a location to provide the operator with a view of the crane’s work area.
(e) Cab glass shall be clear safety glazing material meeting the requirements of ANSI Z26.1.