Complete Service Repair Manual for John Deere 4050, 4250, 4450, 4650, 4850 Tractors.
Publication number: TM1259
This manual contains high quality images, specs and Schematics, actual real photo illustrations, circuit diagrams and instructions to help you to operate, diagnostic, maintenance, troubleshoot, and repair your John Deere 4050, 4250, 4450, 4650, 4850 Tractors. This document is printable, without restrictions, contains searchable text, bookmarks, crosslinks for easy navigation.
Covered models:
John Deere 4050 Tractor
John Deere 4250 Tractor
John Deere 4450 Tractor
John Deere 4650 Tractor
John Deere 4850 Tractor
CONTENTS:
SECTION 210 – GENERAL
Introduction and Safety Information
SECTION 220 – ENGINE OPERATION
Group 05 – System Operation
Group 10 – System Tests and Diagnosis
SECTION 230 – FUEL / AIR OPERATION AND TESTS
Group 05 – Air Intake System
Group 10 – Diesel Fuel System
Group 15 – Control Linkage
SECTION 240 – ELECTRICAL SYSTEM
Group 05 – Electrical System Information
Group 06 – Phase I Electrical Wiring Diagrams
Group 07 – Phase II Electrical Wiring Diagrams
Group 10 – Electrical System Diagnosis
Group 15 – Delcotron Charging Circuit
Group 16 – John Deere Charging Circuit
Group 20 – Starting Circuit
Group 25 – Lighting Circuit
Group 30 – INVESTIGATOR II and Digital Tachometer
Group 31 – Gauge Cluster Instrumentation
Group 32 – Analog Techometer
Group 35 – Accessories Circuit
Group 40 – PERFORMANCE TRAK I Radar Sensor System (Tachometer Version)
Group 41 – PERFORMANCE TRAK II Radar Sensor System (Mini Monitor)
Group 42 – PERFORMANCE TRAK III Radar Sensor System (Multi-Function Monitor)
SECTION 250 – POWER TRAIN (PERMA-CLUTCH TRANSMISSION)
Group 05 – QUAD-RANGE System Operation
Group 10 – PERMA_CLUTCH Operation
Group 15 – QUAD-RANGE Planetary
Group 20 – QUAD-RANGE Eight-Speed
Group 25 – Transmission Oil Pump
Group 30 – Transmission Lubrication Valve
Group 35 – Transmission Control Valves
Group 40 – Differential and Final Drive
Group 45 – SYNCRO-RANGE Transmissions Diagnosis
SECTION 255 – POWER SHIFT TRANSMISSION
Group 05 – Mechanical Operation
Group 10 – Hydraulic Controls
Group 15 – PTO, Differential and Final Drives
Group 16 – Power Shift Transmission Diagnosis
Group 20 – Mechanical Front Wheel Drive
SECTION 260 – STEERING / BRAKES OPERATION AND TESTS
Group 05 – 4050, 4250, and 4450 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
Group 30 – Pressure Control Valve
Group 35 – HYDRACUSHIONED Seat
Group 40 – Rockshaft Operation (4050, 4250, 4450)
Group 45 – Rockshaft Operation (4650 and 4850)
Group 50 – Selective Control Valve
Group 55 – Remote Cylinder
Group 60 – QUAD-RANGE Hydraulic Diagnosis
Group 65 – Power Shift Transmission Hydraulic Diagnosis
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 Relay – Warning Lamps
Group 12 – System Tests With Timer Relay – Warning Lamps
Group 15 – Heating System Operation Tests
Group 20 – HYDRACUSHIONED Seat
SECTION 299 – SPECIAL TOOLS
Group 05 – Purchased Tools
Group 10 – Fabricated Tools
Group 15 – Test Equipment Calibration
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File Format: PDF
Requirement: Adobe Reader
Total Pages: 1086
Language: English
Compatibility: All Windows Version / Mac and Linux OS, Android
This manual can be used by anyone from a first time owner/amateur to a professional technician. Even the most novice mechanic can also easily follow the step-by-step guides which are made simple by the illustrations and drawings. Keep this manual handy and use it often. Performing routine, preventive maintenance will save you time & money by helping to prevent premature failure and unnecessary repairs.
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