ASME B30.16 pdf download

ASME B30.16 pdf download.Overhead Underhung and Stationary Hoists.
SECTION 16-0.1: SCOPE OF B30.16
Volume 830.16 includes provisions that apply to the construction, installation, operation, Inspection, testing. and maintenance of overhead underhung and stationary hoists, including hand-chain-operated, electric-powered, and air-powered chain and wire rope hoists used for, but not limited to, vertical lifting and lowering of freely suspended, unguided loads that consist of equipment and materials (see Figures 16-0.1-1 through 16-0.1-6).
Requirements for a hoist that is used for a special purpose, such as, but not limited to, tensioning a load, nonvertical lifting service, lilting a guided load, lifting personnel, or drawing both the load and the hoist up or down the load chain or rope when the hoist is attached to the load, are not Included in this Volume.
(22: SECTION 16-0.2: DEFINITIONS
abnormal operating conditions: environmental conditions that are unfavorable, harmful, or detrimental to the operation of the equipment, such as excessively high or low ambient temperatures, exposure to weather, corrosive fumes, dust-laden or moisture-laden atmospheres, and hazardous locations.
angle of loading: the angle between a hoist rope or load chain and the vertical axis (see Figure 16.0.2-1).
block, load: the assembly of hook or shackle, swivel, bearing, sheaves, sprockets, pins, and frame suspended by the hoisting rope or load chain. This shall include any appurtenances reeved In the hoisting rope or load chain.
brake: a device, other than a motor, used for retarding or stopping motion by means of friction or power.
brake, holding: a friction brake for a hoist that is automatically applied and prevents motion when power is off.
brake, mechanicalload: an automatic type of friction brake used for controlling loads in a lowering direction. This unidirectional device requires torque from the motor or hand chain wheel to lower a load but does not impose any additional load on the motor or hand chain wheel when lifting a load. This may also be used as a holding brake if designed as such by the manufacturer.
Before the load chain can be completely run out of the hoist, it shall be restrained in its fully extended position. The restraint shall be such that the unloaded hoist can withstand a lowering hand chain force equivalent to twice the pull required to lift the rated load or, with rated load on the hoist, a hand chain force equivalent to the pull required to lift the rated load.
16-1.2.14 OvertraveL Protection (Electric- or Air- Powered Hoists Only)
(a) Rope Hoists. The hoist shall be so designed and constructed that the load hook, either loaded or empty, shall not exceed the upper limit of travel. If a geared or other lift-limiting device that operates In relation to drum turns is used, an additional lift-limiting device that operates independently of drum rotations shall be provided. The activation point of all lift-limiting devices shall allow the braking system to safely stop motion at maximum operating speed.
(bJ Chain Hoists. The hoist shall be so designed and constructed that it will prevent the load chain from being completely run out of the hoist, and the load hook, either loaded or empty, shall not exceed the upper limit of travel. Overtravel protection components shall be designed by the manufacturer according to the requirements of para. 16-1.2.1(a). The use of a travel- limiting clutch as overtravel protection Is permitted. If a travel-limiting clutch is used, the hoist shall be equipped with a chain end restraint capable of withstanding a load on the chain equal to the load on the chain at full hoist capacity plus the load on the chain required to activate the travel-limiting clutch.
16-1.2.15 Power Failure Protection (Electric- or Air-Powered Hoists Only)
Partial or complete interruption of the power supply (air or electric) during operation shall not result in uncontrollable motion of the load.
16-1.2.16 Lubrication
If lubrication is required, accessible means for lubrication should be provided.
16-1.2.17 ManuaL
The manufacturer shall furnish an instruction manual with each hoist. The manual shall include information on the following:
(a) installation
(b) operation.