This comprehensive John Deere 1133, 1144, 1155, 1157, 1158 Combines Service Repair Technical Manual provides detailed instructions and diagrams for servicing and repairing your combine. The manual covers every aspect of your machine, enabling you to confidently perform repairs and maintenance.

The manual is organized into sections that cover a wide range of topics, including:

* **General Specifications:** This section provides key information on your combine, including dimensions, weights, and capacities.
* **Engine Repair:** This section covers the removal, installation, and repair of both 4-cylinder and 6-cylinder engines.
* **Fuel and Air Repair:** This section focuses on the fuel filter, water trap, and electrical fuel transfer pump systems.
* **Electrical System Repair:** This section covers the comprehensive electrical system, including connectors, electrical components, starting motor, alternator, and various sensors and actuators.
* **Power Train Repair:** This detailed section covers the variable ground speed drive, engine clutch, 3-speed and 4-speed transmissions, final drives, and differentials.
* **Brakes, Rear Axle, and Steering Repair:** This section provides detailed guidance for servicing and repairing the parking brake, foot brakes, hydrostatic steering unit, and rear axle.
* **Hydraulic System Repair:** This section covers the hydraulic oil reservoir, lines, pump, control valve, cylinders, and accumulator, ensuring you understand the complete hydraulic system.
* **Miscellaneous:** This section covers various essential components including bearings, shafts, drive belts, chains, and provides a list of torque specifications and special tools required.
* **Operators Platform and Cab:** This section guides you through the repair and servicing of the cab, operators seat, control levers, air conditioning system, and ventilation system.
* **Cutting Platform and Corn Head:** This section provides detailed instructions for maintaining and repairing the cutting platform, including the corn head.
* **Feeder House:** This section covers the feeder house drive, feeder house with compact cutting platform, and feeder house with quick-tach cutting platform.
* **Separator and Cleaning Unit:** This comprehensive section covers the stone trap, separator drive, variable cylinder drive, threshing cylinder, concave, beater, cross shaker, straw walkers, cleaning shoe, and fan.
* **Grain Processing:** This section provides detailed instructions for repairing the clean grain and tailings augers, grain elevators, and grain tank unloading systems.
* **Special Equipment:** This section covers the straw chopper drive and its components.
* **Engine Operation:** This section provides information on proper operation and troubleshooting of the engine.
* **Fuel and Air Intake System Operation:** This section explains the operation of the fuel filter and fuel transfer pump systems.
* **Electrical System Operation and Tests:** This section provides guidance on testing and troubleshooting the electrical system, including circuit diagrams and wiring harnesses.
* **Power Train Operation and Tests:** This section provides instructions on testing and verifying the operation of the engine clutch and transmissions.
* **Brakes, Rear Axle, and Steering Operation and Tests:** This section provides guidance on operating and testing the brakes, rear axle, and steering system.
* **Hydraulic System Operation and Tests:** This section explains how to test and diagnose potential issues with the hydraulic system.
* **Operators Platform and Cab Operation and Tests:** This section provides instructions on operating and testing the cab, ventilation system, and air conditioning system.

This manual provides detailed instructions and diagrams, allowing you to understand the workings of your combine and perform repairs and maintenance with confidence.

The John Deere 1133, 1144, 1155, 1157, and 1158 combines were a series of high-capacity harvesting machines designed for efficient grain production. Introduced in the late 1980s and early 1990s, these combines were characterized by their robust construction, powerful engines, and advanced features that aimed to optimize cutting, threshing, and cleaning operations. The series offered a range of models catering to different farm sizes and crop types, with the 1133 being the entry-level model and the 1158 boasting the highest capacity.

These combines featured a range of innovative technologies, including the "AutoTrac" system for automated steering, "YieldPlus" for precise yield monitoring, and "CombControl" for automatic header height adjustment. The 1133, 1144, and 1155 models were equipped with the John Deere PowerTech 6090 engine, while the 1157 and 1158 utilized the more powerful 6094 engine. The combines incorporated a variety of features aimed at improving operator comfort and safety, such as an enclosed cab with climate control, ergonomic controls, and a comprehensive safety system. The John Deere 1133, 1144, 1155, 1157, and 1158 combines were popular choices among farmers looking for reliable and efficient machinery to handle the demands of modern agriculture.