THIS IS A CAT 613B SCRAPER TRACTOR WHEEL TESTING ADJUSTING SCHEMATICS SERVICE MANUAL COVERS S/N 38W 72M, VERY GOOD CONDITION, THANK YOU VERY MUCH!!!!!!!!!!!!! Be sure to add me to your favorites list. This item is in the category "Business & Industrial\Heavy Equipment, Parts & Attachments\Heavy Equipment Parts & Accessories\Heavy Equipment Manuals & Books". The seller is "theservicemanualguy" and is located in this country: US. This item can be shipped worldwide.