ASME B30.17 pdf download.Cranes and Monorails(With Underhung Trolley or Bridge).
Volume B30.17 includes provisions that apply to the construction, Installation, operation, inspection, testing, and maintenance of hand-operated and power-operated overhead cranes and monorail systems with an under- hung trolley and/or bridge. These cranes and monorail systems shall support one or more hoists used for vertical lifting and lowering of freely suspended, unguided loads, and include top running and underhung bridge cranes, gantry cranes, traveling wall cranes, jib cranes, polar gantry cranes, portable gantries, other cranes having the same fundamental characteristics, and monorail systems including trolleys (carriers) and end trucks. Track sections and their support systems for monorail systems, runways and their support systems for under- hung cranes, and runway rails for top running cranes are also within the scope of this Volume.
Provisions for similar equipment used for a special purpose, such as, but not limited to. nonvertical lifting service, lifting a guided load, or lifting personnel, are not included in this Volume.
20 SECTION 17-0.2: DEFINITIONS
abnormal operating conditions. environmental conditions that are unfavorable, harmful, or detrimental to or for the operation of the crane or trolley, such as excessively high or low ambient temperatures, exposure to weather, corrosive fumes, dust- or moisture-laden atmospheres, and hazardous locations.
below-the-hook lifting device: a device used for attaching loads to a hoist. The device may contain components such as slings, hooks, and rigging hardware addressed by other ASME B30 Volumes or other standards.
brake: a device, other than a motor, used for retarding or stopping motion by friction or power means.
braking, hydraulic: a method of controlling or reducing speed by means of displacement of a liquid.
braking, mechanical: a method of controlling or reducing speed by friction.
braking, pneumatic: a method of controlling or powering a brake by means of compressed gas.
braking means: a method or device used for stopping/ holding motion by friction or power.
SECTION 17-1.5: VERTICAL DROP OR LIFT SECTIONS
17-1.5.1 TroLLey Passage
Vertical drop or lift sections shall maintain alignment of the fixed tracks and the movable tracks to enable the passage of a trolley.
17-1.5.2 TroLLey Run-Off Protection
Means shall be poded to pevent a trolley from running off either end of the movable track when the movable track is not in alignment with the fixed tracks.
17-1.5.3 Stops
Stops shall prevent a trolley from running off the open ends of the fixed tracks when the movable track is not in alignment with the fixed tracks.
17-1.5.4 ELectric Baffles
Electric barnes shall be provided on fixed and movable tracks on systems with cab-operated trolleys. automatic dispatch trolleys, or molten material trolleys. They shall limit trolley travel when the movable track is not in alignment with the fixed track
SECTION 17-1.6: CABS — NORMAL OR SKELETON
(IF PROVIDED)
17-1.6.1 Cab Location and InternaL Arrangement
(a) Thegeneralarrangementoithecaband the location of the control and protective equipment should be such that all operating control devices are within reach of the operator when facing the area to be served by the load block or while facing in the direction of travel of the cab.
(b) The arrangement of the cab should allow the operator to view the load block in all positions. When physical arrangements obscure the operator’s view, the operator shall be aided by other means such as, but not limited to. closed circuit TV, mirrors, radio, telephone. or a signalperson.
(c) The cab shall be clear of all fixed structures within its area of movement.
(d) The clearance of the cab above the working floor or passageway should be not less than 7 ft (2.1 m). except when operations require dimensions that are less. In this case, precautions shall be taken during the operation of the crane or trolley to keep personnel and other obstructions clear of the low overhead cab.
ASME B30.17 pdf download
