1 RT90 Hydrostatic ISSUE NO. 05PL-06/11 For Replacement Copy Order P/N 053-089 This manual contains information concerning the following models: RT90H Tractor Copyright 2004, 2007, 2011 by The Charles Machine Works, Inc. , Ditch Witch, CMW, AutoCrowd, Modularmatic, Jet Trac, Roto Witch, Subsite, Fluid Miser, Perma-Soil, Power Pipe, Super Witch, Super Witch II, Pierce Arrow, The Underground, and The Underground Authority Worldwide are registered trademarks of The Charles Machine Works, Inc. ID0134880