Part of the Case Schematics.
This 318-page Case 1188 Service Manual (OEM Cre 7-57691GB) covers the 1188 Crawler and Wheeled Excavators, and it doesn't split the difference between them, each system gets its own dedicated coverage. Inside you get full electrical schematics for old and new version cabinets on both crawler and wheeled configurations, plus hydraulic schematics for mono-speed and two-speed setups. A full electronic troubleshooting section walks you through diagnosis and settings before you start pulling connectors. Set the main relief valve between 395 and 415 bar, and torque the engine speed detector lock-nut to 10 Nm, real numbers pulled straight from the factory pages, not a forum thread. No more guessing which wiring version your cabinet actually has. The PDF carries bookmarks for every section, so you jump straight from cover to hydraulic schematic without hunting through 318 pages by hand.
What's Inside This Case 1188, 1188 Plus Manual
| System | Pages | Key Topics |
|---|---|---|
| Safety, General Information and Torque Specifications | 3-14 | Safety, Twin Wheels, General Information, Correct Use of Torque Wrenches, Hardware Tightening Order, Standard Screw a Torque Specifications, Metal Cap References |
| Specifications - Crawler Excavators | 15-42 | Crawler Excavator, Track and Undercarriage Configuration, Machine Overall Dimensions, Transportation Overall Dimensions, General Machine Specifications, Weights, Fluids and Lubricants, Summary of Detailed Specifications per Component |
| Specifications - Wheeled Excavators | 43-72 | Wheeled Excavator, Tyres, Axles and Road Travel Configuration, Machine Overall Dimensions, Transportation Overall Dimensions, General Machine Specifications, Weights, Fluids and Lubricants, Summary of Detailed Specifications per Component |
| Electrical Schematics - Crawler Excavators (Old and New Versions) | 73-144 | Crawler Excavator, Track and Undercarriage Configuration, Specifications, Schematic Symbols, Description of Electrical Cabinet Printed Circuit (Standard Equipment), Description of Electrical Cabinet Printed Circuit (Optional Equipment), Description of Electrical Cabinet Printed Circuit (Standard), Description of Electrical Cabinet Printed Circuit (Optional) |
| Electrical Schematics - Wheeled Excavators (Old and New Versions) | 145-230 | Wheeled Excavator, Tyres, Axles and Road Travel Configuration, Specifications, Schematic Symbols, Description of Electrical Cabinet Printed Circuit (Standard), Description of Electrical Cabinet Printed Circuit (Optional) |
| Electronic and Troubleshooting System - Crawler Excavators | 231-258 | Crawler Excavator, Track and Undercarriage Configuration, Tools Required, Electronic System, Electronic System Diagnosis, Settings, Electric Acceleration Mechanical Adjustment - New Type Fitting (Graduations Offset 15° on the Gauge) |
| Electronic and Troubleshooting System - Wheeled Excavators | 259-286 | Wheeled Excavator, Tyres, Axles and Road Travel Configuration, Tools Required, Electronic System, Electronic System Diagnosis, Settings, Electric Acceleration Mechanical Adjustment - New Type Fitting (Graduations Offset 15° on the Gauge) |
| Hydraulic Checks, Adjustments and Schematics - Crawler Excavators | 287-302 | Crawler Excavator, Track and Undercarriage Configuration, Tools Required, Tools to Be Made, Pressure Setting Schematic, Pressure Setting, Hydraulic Schematic (Mono-Speed), Hydraulic Schematic (Two-Speed) |
| Hydraulic Checks, Adjustments and Schematics - Wheeled Excavators | 303-318 | Wheeled Excavator, Tyres, Axles and Road Travel Configuration, Tools Required, Tools to Be Made, Pressure Setting Schematic, Pressure Setting, Hydraulic Schematic |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| 1188 Crawler Excavators | ||
| Main relief valve pressure setting | 395 to 415 bar | p. 32 |
| Engine speed detector lock-nut torque | 10 Nm | p. 258 |
| Boom Cylinders Weight (per cylinder) | 145 or 155 kg | p. 33 |
| 1188 Wheeled Excavators | ||
| Main relief valve pressure setting | 395 to 415 bar | p. 64 |
| Engine speed detector lock-nut torque | 10 Nm | p. 286 |
| All Models | ||
| Engine Capacity | 5880 cm3 | p. 19 |
| Hydraulic System Working Pressure | 350 bar | p. 19 |
| Hydraulic Reservoir Capacity | 180 L | p. 19 |
| Main Pump Flow | 320 L/min | p. 19 |
| Inside Operator's Compartment Noise Level (LpA) | 79 dB(A) | p. 22 |
| Track Pad Screw Torque | 510 to 570 Nm | p. 39 |
