Practical wire rope information and useful information on the drag-line cableway excavators . dless of the vibration and shock caused b)^throwing his drums in operation. Constant shock and vibration isbound to ruin the best rope. Wire rope does not rec^uire nvirsing,but it does require the usual care that is generally given the equip-ment operated in connection with wire rope. The author has oft-times observed plants where the hoist, sheaves and bearings re-ceived excellent care and where the wire rope was allowed to dragover logs and through mud and water. A few guide rollers wouldhave increa
Practical wire rope information and useful information on the drag-line cableway excavators . dless of the vibration and shock caused b)^throwing his drums in operation. Constant shock and vibration isbound to ruin the best rope. Wire rope does not rec^uire nvirsing,but it does require the usual care that is generally given the equip-ment operated in connection with wire rope. The author has oft-times observed plants where the hoist, sheaves and bearings re-ceived excellent care and where the wire rope was allowed to dragover logs and through mud and water. A few guide rollers wouldhave increased the rope service manifold. In operating the dragline cablewaiy excavator, some operators,by careless operation, produce a whip in the track cable. Thiswhip produces the eftect shown in dotted lines in Figure 13. Thiscareless operation, if continued, is bound to crystallize and breakthe wire. BV WHIPPING OR DROPPING CA^UCSUOOtlMUY IT \ -PAKE THtPOSITION SHo^^/^4 iin dotted this is CARtUtaS OF>«ON -rHC. » N^lUU CRVSTAUIZE AND BREI^ ^>^PA ^jif mM^^^vvmt^^^^-^fW^^ * I>.»jp^ M ,I jj >j9jmj^ Poor Lubrication. Poor lubrication or entire lack of lubrication has in many casesbeen responsible for poor rope service. A proper lubricant will notonly lubricate the wire and strands, but will also protect the rope —18— against corrosion. Some lubricants will lubricate the outside wiresbut will not penetrate to the inside wires. Such lubricants shouldbe avoided, as they are worse than worthless. Main Points to Be Considered. Briefly stated, the main points that should receive careful con-sideration in the use of wire rope are as follows: 1. Select the right grade and the right construction of wirerope for your particular work. If in doubt consult a wire ropeexpert. 2. Use care and judgment when unloading heavy coils andreels so as not to injure the rope. 3. Do not let wire rope coils or reels lie in water. 4. Do n
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