ASME A17.6:2017 pdf free download Standard for Elevator Suspension, Compensation, and Governor Systems
landing , urnenclosed: a landing that is open to the atmo-sphere or is open to an interior court of a building.
lever Iydraulic driving machine: a hydraulic machine inwhich the plunger or cylinder is attached to the platform via levers.
listed:equipment or materials included in a list pub-lished by an independent certifying organization con-cerned with product evaluation that maintains periodicinspection of production of listed equipment or materials and whose listing states whether that equipment ormaterial meets appropriate standards or has been tested and found suitable for use in a specified manner.
machine, driving: the power unit that applies the energynecessary to raise and lower equipment covered by thescope of this Standard.
beIt-drive machine: an indirect-drive machine equippedwith a belt system as the connecting means.
chain-drioe machine: an indirect-drive machine with achain system as the connecting means.
direct-drizve machine: an electric driving machine, the
motor of which is directly connected mechanically to
belts or chains, either with or without intermediate
gears.
direct-plunger driving macine: a hydraulic driving
machine in which the plunger or cylinder is directlyattached to the platform.
electric driving machine: one where the energy isapplied by an electric motor. It includes the motor, brake,and the driving sheave or drum together with its con-necting gearing, belt, or chain, if any.
friction machine: a direct-drive machine in which themotion of the platform is obtained through friction between a guiding means and driving wheels or rollers.geared-drive macirine: a direct-drive machine in which the energy is transmitted from the motor to the drivingsheave, drum, or shaft through gearing.
geared-traction machine: a geared-drive tractionmachine.
gearless-fraction machirne: a traction machine, without
intermediate gearing, that has the traction sheave andthe brake drum mounted directly on the motor shaft.
ydraulic driving machine: one in which the energy isapplied by means of a liquid under pressure in a cylinderequipped with a plunger or piston.
indirect-drize macirine: an electric driving machine, themotor of which is connected indirectly to the driving sheave, drum, gear reducer, or shaft by means of a beltdrive or chain drive.
rack and pinion drizving machine: an electric drivingmachine in which the motion of the platform lift orstairway chairlift is obtained by power-driven rotatingpinion(s) mounted on the platform, traveling on a sta-tionary rack mounted in the runway.
roped-hydraulic driving macine: a hydraulic drivingmachine in which the plunger or piston is connected tothe platform with wire ropes or indirectly coupled tothe platform by means of wire ropes and sheaves.Itincludes the cylinder, the plunger or piston, and multi-plying sheaves, if any, and their guides.
rope sprocket drive: a driving means consisting of wirerope with fixed links at constant intervals throughoutits length.The links engage in slots on a grooved drivecog to provide a positive drive force.
screw achine: an electric driving machine, the motorof which drives a nut on a screw or rotates a screw toraise or lower a platform lift or stairway chairlift.
traction macine: a direct-drive machine in which themotion of a platform is obtained through tractionbetween the suspension ropes and a traction sheave.winding druw machine: a geared-drive machine inwhich the suspension ropes are fastened to and windon a drum.
rworm-geared machine: a direct-drive machine in whichthe energy from the motor is transmitted to the drivingsheave or drum through worm gearing.
main floor: the floor providing normal egress from abuilding.
aintenance: a process of routine examination,lubrica-tion, cleaning, adjustment, and replacement of parts forthe purpose of ensuring performance in accordance withthe applicable Code requirements.
asonry: built-up construction or combination of build-ing units or materials of clay, shale, concrete, glass,gyp-sum,stone,or other approved units bonded togetherwith mortar or monolithic concrete. Reinforced concreteis not classed as masonry.
operafing device: the switch, pushbutton, lever, or otherdevices used to actuate the control.
operafion: the method of actuating the control.
operatiou,continuos-pressure: operation by means ofbuttons or switches on the platform lift or stairway chair-lift and on the platform, any one of which may be usedto control the movement of the platform lift as longas the button or switch is manually maintained in theactuating position.
ooerhead structure: all of the structural members support-ing the machinery, sheaves,and equipment at the topof the runway.
ASME A17.6:2017 pdf free download
