ASME B107.18:2003 pdf free download

ASME B107.18:2003 pdf free download.PLFRS: WIlRE ISIER.
5.4 Marking
Phers shail be marked in a plain and peramanent nan-ner with the manufacturer ‘s nane or with a trademarkof such konown character that the source of manufactureand country of origin shall be readily determined.Mark-ing shall be as perinanent as the ntorral life expectancyof the pliers to whichit is applied (providing the markedsurface has not been subjected to a fretting or abeadingaction) and be capabie of withstanding the dleaning procedunes normally experienced during its intended use.5.5 Handles
Handles shall have a hardness of 36 HRC to 50 HRC.shaill be shaped to provide a comfortable handgrip, andshall be free froan rough ediges and sharp corrlerS.
5.6 ws
5.6.1 Hardness. Jaws shaill have a hardness of 36HRCto 50 HRC. The gripping portion of the jaws and wirecutter shall be heat teated to a hardness of 56 HRC to6HRC. Jaw surfaces and edges shall not damage thewie being twisted.
5.6.2Cushlon 6rip Thoat.Cushian grip throat whenprovided, shail grip and retain cut wire end. The cuashiongrip throat shaB be nonmetallic and capable of with-standing norumal use without deteriorating or rubbingoff and shall pass the solvent resistance tesi in para. 6.4Cushion grip throat shallrrnain permanently attachedtunder nornal use.
5.7 Joint Fastener
The fastener shall have a hardness of 25 HRC to 50HRC
5.8Spir l Mechanlsm
The spiral mechanism shall be capable of producinga close, uniform twist in safety wire without binding ofor darmage to the anechanism This mechanism shali bemounted between the handles of the pliers and shall beperaranently affixed to one hardle in such a positionthat the longitudinal axis of the mechanismn shall cone-spond to the longitudinal axis of the pliers.The mecha-nism, when actuated, shal cause pliers to rotate aboutits longitudinal axis in its intended direction(s). Eachfuli actuation of the amnechanisn shall cause the pliersto umake the following minimum nurnber of coonpleterotations:
Jfor 6 in.(152 mm) size,2 rotations (with auto-matic retun.2 rotatiors)
bfor 9 in. [229 mn) size,3 rotations (with auhoaticreturn,215rotations)
fc for 12in.(305 mmn) size,4 rotatiors (with automaticreturn.3rotations) (lype ul Reversible, 3 rotatiors)The design of the miechanisn shal permmit a comfort-able, adequate grip by the operator.