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INSTALLATION OF PERMANENT ROOF SUPPORT <br />DOUBLE BOOM BOLTER <br />WITH AUTOMATIC 'TEMPORARY ROOF SUPPORT <br />LEGEND <br />I~~ = 8 <br />~ ROOF DOLT <br />O FUTURE LOCATION OF ROOF BOLT <br />D BOLTING SEQUENCE <br />-~ BOLTER TEMPORARY ROOF <br />~ i SUPPORT ARM AND <br />~ ~ SAFETY CANOPY <br />i <br />~ r~ <br />~ ~ <br />i ~ <br />MIRROR IMAGE APPLIES <br />~A' DENOTES ONE DOOM <br />SIDE OF THE BOLTER <br />~B DENOTES THE OPPOSITE <br />BOOM SIDE OF 'A' <br />:~ SPOT BOLT INSTALLND <br />IF REQUIRED, PRIOR TO <br />INSTALLING Ili <br />zo YAx. <br />S YAx.-+j.-S YA <br />~.1 <br />.•.~ <br /> sn so sA 34 <br /> a ^ ^ ^ T , <br /> s' <br /> ~ w% <br /> ~ <br />~ <br /> eo 7v ~iA . iA <br /> u ^ ~ e ~ o - - <br /> . <br />> <br /> ` ~ <br /> s' <br /> ~ ~ wx <br /> ~ <br /> o <br />~ <br />~ <br /> zo . sn <br />~ <br />i <br />i iA .X <br /> O ( Ci ~~ <br />d IG <br /> ~ ~ <br /> ~ <br /> ` <br />~~ <br />~ <br />s . <br /> ~ <br />~~ YAx <br /> ~ I <br /> <br />rs ® ® ® v ~ a <br />m QG ® 0 >A ^ ^ <br />® ® H ® ® ^ ^ ^ <br /> <br /> <br />Note: <br />Due to variable mining conditions and circumstances, the above pattern <br />is a typical pattern, but may require alteration of which boom installs <br />a particular bolt. I'or an example, "n" boom may be required to install <br />3 "B" bolt <br />BOLTING SEQUENCE <br />IIolter roof support as'ms will be positioned to the roof approximately 5 <br />feet inby the last permanent roof support. bolting will start nearest . <br />the rib and continue toward the center of the entry. <br />