Case IH 1640 1660 1680 Combine Service & Repair Manual

The Case IH 1640 1660 1680 Combine service & repair manual is the complete factory workshop reference for owners, mechanics and dealerships — covering everything from routine maintenance to a full overhaul.

It provides detailed step-by-step procedures, exact specifications and torque values, wiring and hydraulic diagrams, and fault diagnosis for the header, threshing, separation, cleaning and grain-handling systems.

What this manual covers:

• Header and feeder house
• Threshing and separation
• Cleaning shoe and grain handling
• Engine and drivetrain
• Electrical, sensors and monitors
• Adjustments and specifications

From a quick service to a ground-up rebuild, it has the procedures, specifications and diagrams to get the job done right.