John Deere 4050 4250 4450 4650 4850 Tractor Operation / Technical Manual TM1259

Manual comes on a new USB flash drive or if you prefer a CD in PDf format and works with any PDF Reader such as Adobe

This manual contains all service, repair, maintenance & troubleshooting procedures you need to keep your machine operating smoothly, contains step-by-step instructions, diagrams, illustrations, specifications and more, everything you need to save you money and do your own repairs.

Covers the following:
John Deere 4050 Tractor
John Deere 4250 Tractor
John Deere 4450 Tractor
John Deere 4650 Tractor
John Deere 4850 Tractor

Publication No. TM1259

Print Date: 1987

Pages: 1,086


Manual Contents:
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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