v This book has been in progress for numerous years. It is difficult to remember everyone who has participated in the development of the book. The book would not have been pos- sible without the generous support of many individuals. I would like to thank my wife Ber- tha for her amazing patience and continual support, my son Calvin for his numerous hours in developing 3-D hydrostatic transmission graphics, my family for their encouragement, my students for their valuable input and assistance, and all of the reviewers for their time and expertise in reviewing the chapters. Goodheart-Willcox Publisher and I would also like to thank the following companies, organizations, and individuals for their contribution of resource material, images, or other support in the development of Heavy Equipment Power Trains and Systems. AED—Steve Johnson AGCO—Matthew Keller, Joe Henry, and Stacy Hofferbert Auburn Gear—Gary Grogg B & B Hydraulics—Bill Speakman, Dennis Rayl, Ray Miller, and Kyler Ridgeway Bosch Rexroth—David Eckerd, Glen Turner, and David Gingery Caterpillar—Andrew Henry, Simon Bishop, Zack Palmquist, Bobby Kellum, Pete Holman (retired), Steve Hitch (retired), Kelley Maxwell, Nick Johnson, Travis McClung, and Brent Dyche CNH—Kelly Burgess, Ted Polzer, Dallas Grothusen, Russell Skewes, Kent Wagenbach, Derek Lee, Pete Steiner, Scott McElroy, Daniel Mitchell, Vang Moua, Cody Garrett, Kim Moulds, Roger Lewno, Ed Wojcik, Lane Robert, David North (retired), and Russel Schuchaskie (retired) Fabick Caterpillar—Mackenzie McDaniel Flaherty Farms—Calvin and Brian Flaherty Foley Caterpillar—Shannon Dudley, Jarrod Haas, Cory Forshee, Tommy Phelps, Aaron Monhollon, Anthony Dahl, Jon Robinson, Gregg Haas, Jeff Smarsh, Jack Frederick, and Jeremy Thoennes Ft. Scott Community College—Kent Aikin General Electric—Brent Wood Hayes Manufacturing, Inc.—Zeb Sieting Hitachi—Glenn Blackburn Illinois Central College—Jeff Gardner and David Cook Industrial Sealing & Lubrication, Inc.—David Consiglio J & M Clutch and Converter—Terry McWhirter Jim Radell Construction—Dennis Shouse John Deere—Glen Oetken, John Bowman, William Eck, Dan Russow, Jason Misegadis, Ben Hertle, Ross Graham, Matt Davied, Chris Bennet, Craig Hansen, Kody Daniels, Aaron Heady, Daniel Gunther, and Mark Colvin Joseph Industries—Samuel Osinsky Joy Global—Ken Gould (retired) Acknowledgments