ASME B30.14:2004 pdf free download

ASME B30.14:2004 pdf free download.Side Boom Tractors.
booni stop: an automatic device used to limit the angle of the boom at the highest position.
brake: a device used for retarding or stopping motion by friction or power means.
clutch: a friction, electromagnetic, hydraulic, pneumatic, or positive mechanical device for engagement or disengagement of power.
countcru’iiht: weight used to supplement the weight of the machine in providing stability for lifting loads.
desigzated person: a person selected or assigned by the employer or the employer’s representative as being competent to perform specific duties.
drum: the cylindrical members around which ropes are wound.
dynamic loading: loads introduced into the machine or its components by forces in motion.
load: the external load, in pounds (kilograms) applied to the side boom tractor, including the weight of load- attaching equipment such as load blocks, shackles, and slings.
load, rated: side boom tractor ratings in pounds (kilograms) established by the manufacturer in accordance with para. 14-1.1.
load block, lower: the assembly of hook or shackle, swivel, sheaves, pins, and frame suspended by the hoisting ropes.
load block, upper: the assembly of hook or shackle, swivel, sheaves, pins, and frame suspended from the boom point.
load capaciti. nu1xinum: the capacity for which the tractor is designed (Refer to SAE J743.).
load hoist: a hoist drum and rope reeving system used for Lifting and lowering loads.
load opetha,,c, track-type tractor: the horizontal distance from the center of the load hook to the outer edge of the outer track rail on the boom side (Refer to SAF. J743.).
load overhang, wheel-type tractor: the horizontal distance from the center of the load hook measured perpendicular
(b) Wire rope clips shall be drop-forged steel of the single saddle (U-bolt) or double saddle type clip. Malleable cast iron clips shall not be used. For spacing, number of clips, and torque values, refer to the clip manufacturer’s recommendation. Wire rope clips attached with U- bolts shall have the U-bolt over the dead end of the rope and the live rope resting in the clip saddle. Clips shall be tightened evenly to the recommended torque. After the initial load is applied to the rope, the clip nuts shall be retightened to the recommended torque to compensate for any decrease in rope diameter caused by the load. Rope clip nuts should be retightened periodically to compensate for any further decrease in rope diameter during usage.
(C) Swaged, compressed, or wedge socket fittings shall be applied as recommended by the rope, side boom tractor, or fitting manufacturer.
14-1.5. Sheaves
(a) Sheave grooves shall be free from surface defects that could cause rope damage. The cross-sectional radius at the bottom of the groove should be such as to form a close-fitting saddle for the size of rope used. The sides of the groove shall be tapered outward and rounded at the rim to facilitate entrance of the rope into the groove. Flange rims shall run true about the axis of rotation.
(b) Sheaves carrying ropes that can be momentarily unloaded shall be provided with close-fittings guards or other suitable devices to guide the rope back into the groove when the load is applied again.
(c) Sheaves in the lower load block shall be equipped with close-fitting guards that will prevent ropes from becoming fouled when the block is lying on the ground with ropes loose.
(d) Means shall be provided to prevent chafing of the ropes.
(e) All sheave bearings shall be provided with means for lubrication. Permanently lubricated bearings are acceptable.
14-1.5.5 Sheave Sizes
(a) Boom hoisting sheaves shall have pitch diameters of not less than 10 times the nominal diameter of the rope used.
(b) Load hoisting sheaves shall have pitch diameters of not less than 10 times the nominal diameter of the rope used.
(c) Load block sheaves shall have pitch diameters of not less than 10 times the nominal diameter of the rope used.