4050,4250,4450,4650 AND 4850 TRACTORS TECHNICAL MANUAL TM-1259 (SEP-87) CONTENTS—OPERATION AND TESTS This manual covers Tractor Operation and Tests (yellow tabs). Repair (green tabs) is covered in TM-1353 (formerly TM-1257) (4050,4250 and 4450 Tractors), TM-1354 (formerly TM-1258) (4650 and 4850 Tractors), CTM1 (6466 Engines), and CTM7 (Radial Piston Pumps).
SECTION 210—GENERAL Introduction and Safety Information SECTION Group Group Group Group Group Group Group Group Group Group Group SECTION 220—ENGINE OPERATION AND TESTS Group 05—System Operation Group 10—System Tests and Diagnosis SECTION Group Group Group 230—FUEL/AIR OPERATION AND TESTS 05—Air Intake System 10—Diesel Fuel System 15—Control Linkage SECTION Group Group Group Group Group Group Group Group Group 240—ELECTRICAL SYSTEM 05—Electrical System Information 06—Phase | Electrical Wiring Diagrams 07—-Phase II Electrical Wiring Diagrams 10—Electrical System Diagnosis 15—Delcotron Charging Circuit 16—John Deere Charging Circuit 20—Starting Circuit 25—Lighting Circuit 30—INVESTIGATOR™ II and Digital Tachometer 31—Gauge Cluster Instrumentation 32—Analog Tachometer 35—Accessories Circuit 40—PERFORMANCE TRAK™ | Radar Sensor System (Tachometer Version) 41—PERFORMANCE TRAK™ II Radar Sensor System (Mini-Monitor) 42—PERFORMANCE TRAK™ Ill Radar Sensor System (Multi-Function Monitor) Group Group Group Group Group Group SECTION Group Group Group Group Group 250—POWER TRAIN (PERMA-CLUTCH TRANSMISSION) 05—QUAD-RANGE™ System Operation 10—PERMA-CLUTCH™ Operation 15—QUAD-RANGE™ Planetary 20—QUAD-RANGE™ Eight-Speed 25—Transmission Oil Pump 30—Transmission Lubrication Valve 35—Transmission Control Valves 40—Differential and Final Drive 45—SYNCRO-RANGE™ Transmission 55—PTO 60—QUAD RANGE™ Transmissions Diagnosis 255—POWER SHIFT TRANSMISSION 05—Mechanical Operation 10—Hydraulic Controls 15—PTO, Differential and Final Drives 16—Power Shift Transmission Diagnosis 20—Mechanical Front Wheel Drive Continued on next page All information, illustrations and specifications contained in this technical manual are based on the latest information available at the time of publication.
The right is reserved to make changes at any time without notice. Litho in U.S.A. 210-01 TM-1259 (Sep-87) 1U9;21001 201087