John Deere 4050-4850 Tractor Service Manual PDF Download (EN)

tm1259

4050, 4250, 4450, 4650 and 4850 Tractors JOHN DEERE TECHNICAL MANUAL 4050, 4250, 4450, 4650 and 4850 Tractors TM1259 (01Sep87) TM1259 (01Sep87) LITHO IN U.S.A. ENGLISH = English

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COTENS-OPERATION AND TESTS

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

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COTENS-OPERATION AND TESTS

CONTENTS—OPERATION SECTION 260—STEERING/BRAKES AND TESTS Group 05—4050, 4250, and 4450 OPERATION Power Steering Group 06—4650 and 4850 Power Steering Group 10—Power Brakes SECTION 270—HYDRAULIC OPERATION AND TESTS Group 05—-PERMA-CLUTCH™ Transmission Operation Group 10—Power Shift Transmission Hydraulic System Operation and Tests Group 15—Main Hydraulic Pump Group 20—QUAD-RANGE™ Transmission Hydraulic Valves Group 25—Power Shift Transmission Hydraulic Valves AND TESTS —CONTINUED SECTION 290—OPERATOR STATION OPERATIONS AND TESTS Group 05—Air Conditioning System Group 10—Air Conditioning System Tests— Introduction Group 11—System Tests Without Timer RelayWarning Lamps Group 12—System Tests With Timer RelayWarning Lamps Group 15—Heating System Operation Tests Group 20—HYDRACUSHIONED™ Seat SECTION Group Group Group 299—SPECIAL TOOLS 05—Purchased Tools 10—Fabricated Tools 15—Test Equipment Calibration Group 30-—Pressure Control Valve Group 35—HYDRACUSHIONED™ Seat Group 40—Rockshaft Operation (4050, 4250, 4450) Group Group Group Group Group 45—Rockshaft Operation (4650 and 4850) 50—Selective Contro!

Valve 55—Remote Cylinder 60—QUAD-RANGE Hydraulic Diagnosis 65—Power Shift Transmission Hydraulic Diagnosis 20U;210GEN Litho in U.S.A. 210-02 BX2 180386 TM-1259 (Sep-87) 1u9;21002 201087

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COTENS-OPERATION AND TESTS

Uses this focating major fotdout the as components illustration a each reference for section of introduction and Safety Information

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