Caterpillar 660 Tractor Scraper Parts Manual (S/N 77F1-77F279)Parts Manual Is A Reproduction Of The Original Factory-Issued Parts Manual.It Shows Exploded Illustrations Of Your Tractor, Detailed Information On How To Tear Down Your Machine, Repair and Put It Back Together. The Parts Manual Is An Indispensable Guide Because It Also Provides The Information and Part Numbers You Need For Ordering The Correct Parts. This Makes The Process Quicker and Easier When Ordering Parts . Even If You Already Own The Parts Manual and It Is In Great Condition, Our Value-Added Content, Like Post-Publishing Updates, Corrections, Serial Number Info and More Make This Manual Indispensable.