{"product_id":"john-deere-120-excavator-service-repair-manual-tm1660-pdf","title":"John Deere 120 Excavator TM1660 (Technical Service Repair Manual)","description":"\u003ch2\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTechnical Service Reference: John Deere 120 Excavator (TM1660)\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEquipment Identification \u0026amp; Manual Index\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMachine Profile: 120 Crawler Hydraulic Excavator\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDrivetrain Engine Integration: John Deere PowerTech™ 4.5L 4-Cylinder Liquid-Cooled Diesel Engine\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHydraulic System Foundation: Dual variable-displacement axial piston pumps working with a low-pressure pilot joystick circuit\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManual Details:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePDF File Size : 15.8 MB\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTotal pages : 631\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDocument Number: TM1660 \u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFormat: PDF Digital Download\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eManual Language: English\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSupported Devices : PC, Mac, iOS, Android\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePublication Date : 21FEB05\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDelivery : Instant access after purchase\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFile Format : PDF — Downloadable\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eProduct Description\u003cbr\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003eThe John Deere Model 120 Hydraulic Excavator is a highly reliable, mid-size machine engineered for precision earthmoving, structural utility installation, and versatile site preparation. Driven by an advanced electro-hydraulic control system and a rugged John Deere PowerTech™ engine, keeping this unit running optimally requires precise factory engineering metrics.\u003c\/p\u003e\n\u003cp\u003eThe primary official workshop guide for deep mechanical component overhaul, structural repair, and hydraulic rebuilding is the 631-page John Deere factory technical manual TM1660.\u003c\/p\u003e\n\u003cp\u003eAs an authorized dealer-level Technical Service Repair Manual (TM), these 631 pages isolate system operational failures and provide detailed rebuilding steps for major assemblies, separate from daily preventative operator maintenance guidelines.\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTM1660 Contents:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFOREWORD\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTECHNICAL INFORMATION FEEDBACK FORM\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eGENERAL INFORMATION\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSafety\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eGeneral Specifications\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTorque Values\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFuels and Lubricants\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTRACKS\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eTrack System\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAXLES AND SUSPENSION SYSTEMS\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAxle Shaft, Bearings, and Reduction Gears\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHydraulic System\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eENGINE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eRemoval and Installation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eENGINE AUXILIARY SYSTEMS\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCold Weather Starting Aids\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eCooling System\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e Speed Controls\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIntake System\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eExternal Fuel Supply Systems\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDAMPENER DRIVE (FLEX COUPLING)\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eElements\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eELECTRICAL SYSTEM\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBatteries, Support, and Cables\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAlternator, Regulator, and Charging System Wiring\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eWiring Harness and Switches\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSystem Controls\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eInstruments and Indicators\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFRAME OR SUPPORTING STRUCTURE\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFrame Installation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eChassis Weights\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOPERATOR’S STATION\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eRemoval and Installation\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eOperator Enclosure\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSeat and Seat Belt\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHeating\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eEXCAVATOR\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eBuckets\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFrames\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHydraulic System\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSWING OR PIVOTING SYSTEM\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eMechanical Drive Elements\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHydraulic System\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDEALER FABRICATED TOOLS\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eDealer Fabricated Tools\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFAQ: \u003c\/span\u003e\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eQ: What machine does TM1660 cover?\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA: It covers the John Deere 120 Excavator in complete factory repair detail covering engine overhaul, hydraulic system repair, electrical system service, undercarriage overhaul, and all major component repair across every system on the machine.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eQ: How many pages does TM1660 contain?\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA: The manual contains 631 pages of complete factory repair, overhaul, hydraulic, electrical, undercarriage, and diagnostic information for the John Deere 120 Excavator.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eQ: Is this the official John Deere factory repair manual?\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA: Yes. TM1660 is the original technical service repair manual published directly by John Deere with factory-accurate engineering and repair data for the 120 Excavator.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eQ: What format is available and when will I receive it?\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eA: Available as a PDF digital download with instant access immediately after purchase on PC, Mac, iOS and Android.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eHow to Download Your Manual:\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003ePurchase 120 Excavator manual from our website.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eAfter successful payment, you will receive an order confirmation email.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eThe email will contain a secure download link for your manual.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eClick the download link to instantly download the PDF file to your device.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\n\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eIf you do not see the email, please check your Spam or Junk folder.\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eFor any issues, contact our support team for assistance.\u003c\/span\u003e\n\u003c\/h4\u003e","brand":"Repair Manuals PDF","offers":[{"title":"Default Title","offer_id":48058191610076,"sku":null,"price":54.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/5247\/3308\/files\/120ExcavatorTechnicalServiceRepairManualTM1660.png?v=1773388527","url":"https:\/\/repairmanualspdf.com\/products\/john-deere-120-excavator-service-repair-manual-tm1660-pdf","provider":"Repair Manuals PDF","version":"1.0","type":"link"}