Introduction to Your Service Manual
This manual is designed to provide comprehensive technical information necessary for the repair, overhaul, and troubleshooting of the Case 888 Crawler Excavator. It is an essential resource for technicians and owners performing detailed maintenance and service operations.
Understanding the different types of manuals available is crucial for effective equipment management. This particular manual is a Service Manual, which focuses on detailed repair procedures, overhaul instructions, and systematic troubleshooting guides. For basic operation, fluid types, and adjustments, an Operator's Manual would be required. For exploded views and factory part numbers, a Parts Catalog is used.
This reproduction manual is crafted for durability, often surpassing the longevity of original vintage prints, ensuring it remains a reliable reference for years to come.
General Information and Safety
This section covers fundamental aspects of the Case 888 Crawler Excavator, including safety guidelines, general specifications, and initial maintenance schedules. Adhering to these guidelines is paramount for safe operation and effective servicing.
Key Topics:
- Safety Rules and Service Manual Introduction
- General Engine Specifications
- General Machine Specifications
- Maintenance and Lubrication Schedules

Image: A page from the manual displaying the initial sections of the Table of Contents, including General Information, Engines, Fuel System, Electrical, Track, and Power Train.

Image: A continuation of the Table of Contents, detailing sections on Hydraulics, Mounted Equipment, and various Schematics located in the rear pocket of the manual.
Engine Systems: Repair and Overhaul
This section provides detailed instructions for the complete servicing of the Case 888 Crawler Excavator's engine. It covers everything from basic removal and installation to complex component overhauls.
Topics Covered:
- Engine Removal and Installation
- Engine Accessories
- Cylinder Block, Pistons, Rods, Camshaft, Main Bearings, Oil Seals, and Flywheel
- Lubrication System
- Cooling System
- Turbocharger: Service and Troubleshooting

Image: A manual page illustrating step-by-step engine repair procedures, including the installation of a seal and the removal of a wear sleeve, accompanied by clear diagrams.

Image: A section from the manual demonstrating the correct procedures for camshaft disassembly and thorough inspection, complete with supporting illustrations.

Image: A troubleshooting guide for turbochargers, featuring visual examples of common issues such as compressor blade erosion, turbine damage, and various types of bearing failures.
Fuel System Maintenance and Repair
This section provides comprehensive guidance for the fuel system of the Case 888 Crawler Excavator, ensuring proper fuel delivery and engine performance.
Key Areas:
- Fuel System Removal and Installation
- Fuel System Filters and Lines
- Fuel Injection Pump and Drive Gear
- Fuel Injectors

Image: A detailed page from the manual showing the installation process for the injection pump drive gear, complete with numbered steps and corresponding diagrams for clarity.
Electrical System Diagnostics and Repair
This section details the electrical components of the excavator, offering guidance on removal, installation, troubleshooting, and schematic interpretation.
Contents:
- Removal and Installation of Electrical Components
- Electrical Specifications and Troubleshooting
- Electrical Schematic
- Batteries
- Starter and Starter Solenoid
- 24 Volt Alternator
Track System Service Procedures
Instructions for maintaining and repairing the track system, crucial for the excavator's mobility and stability.
Includes:
- Removal and Installation of Track Components
- Troubleshooting Track Issues
- Track Chain and Shoes
- Track Rollers, Idler, and Sprocket
Power Train Components
This section details the power train, providing guidance for its maintenance, repair, and overhaul to ensure optimal power transmission.
Detailed Information On:
- Removal and Installation of Power Train Components
- General Maintenance
- Drive and Swing Motor
- Hydraulic Motor
- First Drive Transmission
- Swing Transmission
- Swing Drive Reduction
Hydraulic System Overhaul and Troubleshooting
A comprehensive guide to the hydraulic system, covering all aspects from component removal to troubleshooting complex issues.
Topics Include:
- Removal and Installation of Hydraulic Components
- Maintenance and Service Procedures
- Specifications and Troubleshooting
- Low Pressure Hydraulic Pump
- Attachment Control Valve, Drive Control Valve, Control Valve for Options
- Solenoid Control Valve and Swing Brake Release Valve
- Hydraulic Swivel, Hand Control Valve, Foot Control Valve
- Hydraulic Hammer Control Valve, Variator, Selector Block, Cylinders

Image: A detailed hydraulic schematic diagram, illustrating the complex network of fluid paths, valves, pumps, and cylinders within the Case 888 excavator's hydraulic system.
Mounted Equipment Service
This section provides instructions for the maintenance and repair of the excavator's mounted equipment.
Focuses On:
- Boom, Arm, and Tool
- Turntable Bearing and Related Parts

Image: An exploded view diagram illustrating the various components of the excavator's mounted equipment and their assembly, aiding in identification and reassembly.
Schematics and Diagrams
Detailed schematics are provided to assist in diagnosing and repairing electrical and hydraulic systems. These diagrams are typically found in a dedicated section or 'rear pocket' of the manual for easy reference.
Available Schematics:
- Electrical Schematics
- Location Schematics (Left and Right)
- Hydraulic Schematics
Important Notes for Manual Use
To maximize the utility of this service manual, always refer to the specific section relevant to your task. Utilize the detailed illustrations and step-by-step instructions to ensure accurate and safe repairs. Using a factory-authored manual like this can significantly reduce frustration and wasted time, leading to more efficient and cost-effective maintenance.