Ditch-Witch-JT920-JT920C免开挖定向钻机操作维修与零部件手册

1Ditch WitchJT920JT920CISSUE NO.13PL-07/11For Replacement Copy Order P/N 053-467This product is covered by one or more of the following patents:US4,953,638:5,148,880;5,242,026;5,341,887:5,490,569:5,684,466;5,713,423,5,740,703;5,758,553:5,794,719:5,880,680:5,941,322:6,085,852C1:6,109,371;6,179,065;6,216,803:6,250,403:6,250,404;6,290,606；6,311,790:6,411.094:6,543,551;6,550,547:6,672,409:6,739,413:6,761231:6,776,246;6,808,210:6,827.158:6,848,506:6,871,712:6,896.0777,000,710:7011,166:7,013,990:7,018,164:7.025,152:7,038,454:7,111.693:7.150.331:RE37.450:RE37,923:RE37.975:RE38,418AU689,533;706,544:718,034,755,862CA2,156,398:2,217.899FR674,093DE69417019:69529634;69728716:EP0927892:1466068GB2.312,006;2,418,553;EP674,093:EP817.901;EP846,841;EP927,892JP3.458,247Other U.S.and foreign patents pendingThis manual contains information concerning the following models:JT920/JT920C Directional Drilling SystemCopyright 2004,2005,2006,2007,2008,2011 by The Charles Machine Works,Inc.Ditch Witch.CMW.AutoCrowd,Jet Trac,Roto Witch,Subsite Fluid Miser,PowerPipe,Super Witch,Pierce Arrow,Zahn,The Underground,and The Underground Authority Worldwide areregistered trademarks of The Charles Machine Works,Inc.ID0135009