ASME B30.19 pdf download.CABLEWAYS.
Some of the provisions of this Standardrequirecompliance with infornation found in manuals or othcrdocunents supplied by the manufacturer with the equip-ment.The inforualion includes recommendations,re-quirenets,and instructions (e.g..“thc reeving shallbe checked for compliance with the reconmimcndationsof the manufacturcr”).
Coupiianmce with the provisions should not prccludcthc possibility of consulting a qualificd pcrson. Thisis truc particularly whcn:the cquipmcnt has bccnaltcred.repaircd,or modificd; the manuals or documentsSupplicd by the manufacturer are no longer available;
or the manufacturer or a successor is no longer inbusiness and the manuals are no longer available.
However, the purpose of consulting a qualified personshall not be to avoid contacting the manufacturer andusing the information supplied by the manufacturer.
The Standards Committee will be glad to receivecriticisms of this Standard ‘s requirernents and sugges-tions for its improvement.especially those based onactual exnerience in application of the rules.
Suggestions for changes to the Standard should besubmitted to the Secretary of the B30 Committee.ASME.Three Park Avenue.New York.NY 10016-5990.and shouid be in accordance with ihe foiiowingformat:
(a) cite the specific paragraph designation of thepertinent volume;
(b) indicate the suggested change (acdition,deletion.revision.etc.):
(c) briefly state the reason and/or evidence for thesuggested change;
dsubmit suggested changes to more than one para-graph in the order that the paragraphs appear in thevolume.
The B30 Committee will consider each suggestedchange in a timely manner in accordance with its procedures.
(a)) Any rigging or reeving utiiizedi to attach theLrack cable(s) to the anchorage shall be proportioneclL stalically resist the nominai rope break strength ofthe urack cable(s).
19-1.3.3 Ropes
(b) ropes shall be of a size, grade, and construction to withstand the maximum rated load at the specifieddesign factor.
(c) nonoperating ropes such as guy ropes andmessenger and button lines shall have a minimumdesign factor of 3.
(c)The track cable(s) shall have a minimum designfactor of 3.
(d) All operating ropes such as load ropes,trolleyinhaul-out ropes.” and luffing tackle ropes shallhave a minimum design factor of 3.5, except for rotationresistant rope. which shall have a minimum designfactor of 5.
NOTE:The ropo size and construction as defined above shall bedetcrmincd on thc basis of ropc loads resulting from the designer/snanufactuscr’s raiings. approved reeving. dpuilished nomimalbreaking strength of new rope under static conditions. Ropes ofmaterial other than steel may be used only in accordance with thedesigner’s recommcndntions
(e)All operating ropes shall be of sufficient lengthto permit the entire range of movement specified forthe application and leave at least two fuil wraps ofrope on the drum at all times.
19-1.3.4 Sheaves
(a)Sheave grooves shall be free from surface defectswhich couid cause rope damage. The cross-sectionairadius at the bottom of the groove should be such aslo fonn a ciose-filting saddie for line size of rope used.The sides of the groove shall be tapered outward androunded at the rim to facilitate entrance of the ropeinto the groove.Flange rims shall run true about thcaxis of rotation.
(b) Sheaves carrying ropcs which can be momentarilyunloaded shall be provided with close-fitting guards orothcr devices to guide the rope back into the groovewhen the load is applied again.
(c) The sheaves in the lower load block shall bcequipped with closc-fitting guards that will minimize
(2) When power aciuaiced bvrakcs iaving no continuous mcchanical linkage between the actuating and braking mcans are used for controlling loads, an auiomatic means shall be provided to prevent the load from flling in the cvent of loss of brake actuating power.
(3) When a hoist is to be operated from a remote location, a sl-etting brake shall be provided to stop and prevent drum rolation in the event of power failure.
This requirement docs not apply to hoists where brakes arc manually applied through mechanical linkages and the operator is at the control position.
(4) Foot operated brakes shall be constructed so that the operator’s foo will not easily slip off the pedal.
(5) Inhaul outhaul and single drum lufng hoist brakes shall have holding power in both directions to prevent movement of the drum. The brake shall be capable of being set in the thoiding position and remaining so without attention on the part of the operator.
(6) Brakes and clutches shall be provided with adjustments where necessary to compensate for wear and LU mmaimain tension in springs where used.
ASME B30.19 pdf download
