Part of the Case Repair Manuals.
This 614-page Case CX15B, CX18B Service Manual (OEM #87743532) breaks down every hydraulic, electrical, and engine system across both mini excavator models. Inside: full wiring diagrams with harness lay-out and connection charts, hydraulic diagrams specific to the CX15B and CX18B, and a dedicated troubleshooting section covering hydraulic faults, electrical faults, and engine starting trouble. You also get pump, control valve, and slewing motor teardown procedures, plus torque tables for screws, hoses, and fittings. Tighten the 1/8-inch hydraulic line O-ring fitting to 16.7 Nm, and replace the travel motor and cylinder rod seal rings rather than reusing them, exactly as the factory calls for. No more guessing which wire goes where on a machine this small. It's bookmarked by section, so you can jump straight to the hydraulic or electrical diagrams from your phone and get back under the machine.
What's Inside This Case CX15B, CX18B Manual
| System | Pages | Key Topics |
|---|---|---|
| General & Specifications | Machine Description, Technical Specifications, Special Tools, And the Standard Maintenance Time Table | |
| Maintenance | General Maintenance and Procedures, Maintenance Standards, And Inspection Procedures | |
| Engine | Engine Removal and Installation, Disassembly, Assembly, And Inspection, And Engine Specifications | |
| Hydraulic System | Hydraulic Pump, Control Valves, Cylinders, Travel and Swing Circuits, And Hydraulic Troubleshooting and Pressure Checks | |
| Electrical System | Wiring, Sensors, Controllers, And Electrical Troubleshooting | |
| Main Components & Removal | Major Component and Main-Component Removal and Installation | |
| Working Attachment | Boom, Arm, And Bucket Working-Attachment Overview, Removal, And Installation | |
| Upper Frame & Travel System | Upper Frame and Swing, Undercarriage, Tracks, And Travel System | |
| System Troubleshooting | System-Level Troubleshooting Across the Hydraulic, Electrical, Engine, And Travel Systems |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| All Models | ||
| Travel motor seal ring replacement | Replace the seal ring with a new one | p. 367 |
| Hydraulic line O-ring fitting torque (1/8 inch) | 16.7 Nm (12.31 lbf·ft) | p. 377 |
| Cylinder rod seal ring replacement | Replace the seal ring | p. 367 |
| Engine oil filter element type | Paper filter element | p. 474 |
| Engine Displacement | 952 ml (0.030 gal) | p. 32 |
| Engine Power | 11.2 kW / 2100 rpm | p. 32 |
| Tightening Torque for 1/4" Hose Fitting | 36.3 (26.77) Nm (lbf-ft) | p. 377 |
| Engine Oil Capacity | 1.8 l (0.48 U.S. gal) | p. 474 |
| Cooling System Capacity | 50 l (13.21 U.S. gal) | p. 474 |
| CX15B | ||
| Hydraulic Pump (CX15B) Working Pressure | 210 (2988) MPa (psi) | p. 139 |
| Machine Weight (Canopy) | 1480 kg (3256 lb) | p. 33 |
| CX18B | ||
| Machine Weight (Cab) | 1780 kg (3916 lb) | p. 33 |
