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SAFETY PRECAUTIONS FOR FULL ROOF BOLTING <br /> suitable length and design shall be provided on all mobile <br /> face equipment, except haulage equipment. <br />6. A suitable roof sounding device will be provided on the <br /> roof drilling machine and continuous miner. This device <br /> will be made available to all face workmen who do not nor- <br /> mally carry a roof sounding device. <br />7. Upon completion of the loaning cycle, a warnino device <br /> will be conspicuously placed to warn persons of an unsup- <br /> ported area, <br />fs. Roof bolts installed in the approved pattern will not De <br /> used as an anchor point (belts, fans, etc.) <br />9. a. Nine openings will no*_ be cut through into areas that <br /> are not totally supported by either temporary sup- <br /> ports on z maximum of five (5) foot centers or per- <br /> manent supports installee on pattern as requires by <br /> the approved plan. <br /> b. khen a mine openino holes through into z permanently <br /> supported entry, room, or crosscut, the intersection <br />• so Created shall be Considered unsupporteg zng nc <br /> work other than installinc terporary or permanent <br /> support shill be done in or' inby such intersection <br /> until the new opening is either permanently supported <br /> with at least one (1) row of bolts or timbered off <br /> witn at least one (1) row of posts on not more than <br /> five (5) foot centers across the openings. <br />10. A side cut will be startee gnly in areas that are perma- <br /> nently supported. Once the sidecut has been completed, <br /> the sidecut shill De supported by at least one (1) row of <br /> bolts er ti :.tarot of` .itr, at least one (1) r(~r, cf posts <br /> on not mare than five (5) foot centers across the opening <br /> prior to v+orkiriy ~n the intersection. <br />11. a. When crossbars are required, they will be installed <br /> so that the load on the support is equally distribut- <br /> ed. <br /> b. On mobile equipment haulageways, all crossbars, or <br />• Deams shall be installed with some means of support <br /> that will prevent the beam or crossbar frr~m falling <br /> in the event the supporting legs are accidently dis- <br /> lodged. <br />Page Six A <br />