John Deere 1350 1550 1750 1850 1950 2250 2450 2650 2850 3050 3350 3650 Tractor Operation and Tests Technical Manual (TM4446 AUG90)

This advanced technical manual provides in-depth operational insights and diagnostic procedures for multiple John Deere tractor models. Covering everything from engine testing to hydraulic system troubleshooting, it’s designed to help technicians and owners maximize efficiency, minimize downtime, and ensure long-term performance.

Model Covers:

John Deere 1350, 1550, 1750, 1850, 1850N, 1950, 1950N, 2250, 2450, 2650, 2650N, 2850, 3050, 3350, 3650 Tractors

File Format: PDF

Size: 34.12 MB

No. of pages: 591

Language: English

Delivery Method: Instant Download - Immediate access after purchase.

📑 Included Sections:

Comprehensive Safety and System Specifications

• Detailed safety guidelines for working on complex tractor systems
• Full specifications including torque values, serial number locations, and system data

Engine and Fuel Systems Diagnostics

• Engine testing with dynamometer procedures and cooling system checks
• Fuel and air intake system diagnostics including cold weather starting aids

Electrical Systems and Wiring Diagrams

• Comprehensive electrical schematics for models with and without cab
• Step-by-step circuit diagnosis covering starting, lighting, and PTO systems

Powertrain, Steering, and Hydraulic Systems

• In-depth analysis of clutches, transmissions, differentials, and final drives
• Hydraulic system operation and testing, including rockshaft and selective control valves

Operator’s Cab and Comfort Systems

• Air conditioning, heating, and ventilation system diagnostics
• Safety and regulatory information for refrigerant handling and system maintenance

The John Deere TM4446 Technical Manual equips you with expert-level instructions to troubleshoot, maintain, and optimize your tractor fleet for reliable field operation.