John Deere 4050, 4250, 4450, 4650, 4850 Tractors Service Technical Manual
TM1259
Models Covered:

John Deere 4050 Tractor
John Deere 4250 Tractor
John Deere 4450 Tractor
John Deere 4650 Tractor
John Deere 4850 Tractor


Service Technical Manual Covers:

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

Language:English
Format:Pdf