1 JT520 ISSUE NO. 14PL-10/11 For Replacement Copy Order P/N 053-062 This product is covered by one or more of the following patents: US B1 4,858,704; 4,953,638; 5,148,880; 5,242,026; 5,341,887; 5,490,569; 5,684,466; 5,713,423, 5,794,719; 5,880,680; 5,941,322; 6,085,852; 6,109,371; 6,179,065; 6,216,803; 6,250,403; 6,250,404; 6,290,606; 6,311,790; 6,411,094; 6,543,551; 6,550,547; 6,672,409; 6,739,413; 6,776,246; 6,808,210; 6,827,158; RE37,450; RE37,923; RE37,975; RE38,418 AU 689,533; 706,544; 718,034, 755,862 CA 2,156,398 FR 674,093 DE 694 17 019; 695 29 634; 297 01 406 EP 0683845; 0674093; 0817901; 0846841 GB 2,209,239; 2,312,006; EP674,093; EP846,841 JP 3,458,247 Other U.S.
and foreign patents pending This manual contains information concerning the following models: JT520 Directional Drilling System Copyright 2004, 2005, 2006, 2007, 2009, 2011 by The Charles Machine Works, Inc. , Ditch Witch, CMW, AutoCrowd, Jet Trac, Roto Witch, Subsite, Fluid Miser, Power Pipe, Super Witch, Pierce Arrow, Zahn, The Underground, and The Underground Authority Worldwide are registered trademarks of The Charles Machine Works, Inc. ID0134928