1 RT55H ISSUE NO. 10PL-06/11 For Replacement Copy Order P/N 053-118 This manual contains information concerning the following models: RT55H Tractor Copyright 2004, 2005, 2006, 2007, 2010, 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. ID0135298