This comprehensive service and repair manual is specifically designed for the Case 850D, 850E, 855D, and 855E Crawler models. It provides detailed instructions and illustrations for maintaining and repairing your equipment, ensuring you have the knowledge and guidance necessary for all your service needs. Inside the manual, you'll find extensive coverage of various critical components and systems. Learn about safety procedures and essential maintenance practices to keep your crawler operating smoothly. Understand the intricacies of the hydraulic system, including its operation and repair methods. The manual delves into the hydrostatic service, offering detailed explanations of its functions and troubleshooting techniques. Master the complexities of the electrical system with thorough diagrams and instructions for diagnosis and repair. The manual also covers engine service in detail, guiding you through maintenance procedures, troubleshooting steps, and even engine removal and installation. Explore the drive system, main frame, heating and ventilation systems, and air conditioning components. Gain in-depth knowledge about clutch adjustment, drive chain adjustment, and the cooling system. The manual includes troubleshooting guides to assist you in identifying and resolving common issues. You'll find a wealth of technical data and specifications, ensuring you have all the information necessary to maintain and repair your crawler effectively. This manual is your trusted resource for keeping your Case 850D, 850E, 855D, and 855E crawler in top condition.

## CASE 850D, 850E, 855D, and 855E Crawler Excavators: A Powerful and Versatile Force The CASE 850D, 850E, 855D, and 855E crawler excavators are heavy-duty machines designed for a wide range of demanding construction and earthmoving applications. These excavators, part of CASE’s renowned line of crawler excavators, boast impressive power and versatility, making them ideal for projects requiring high productivity and efficiency. The 850D and 855D models, both boasting powerful engines reaching 230 hp, offer impressive digging performance and lifting capacity, while the 850E and 855E models feature cutting-edge technology, including CASE's Intelligent Hydraulic System, which optimizes engine and hydraulic performance for maximum efficiency. These machines feature robust construction, encompassing a durable undercarriage, a spacious and comfortable operator cab, and advanced hydraulic systems. They are known for their impressive breakout forces, allowing them to tackle tough digging tasks with ease. Furthermore, CASE has equipped these excavators with a variety of attachments, including hammers, shears, and buckets, to cater to a wide array of applications. Their versatility expands further with the availability of different boom and stick configurations, allowing operators to select the optimal setup for each project. Whether used for demolition, excavation, site preparation, or material handling, the CASE 850D, 850E, 855D, and 855E crawler excavators deliver exceptional performance, durability, and ease of operation, making them valuable assets for any construction or earthmoving project.