Part of the Case Repair Manuals.
All 220 pages of this Case 40 Crawler Series D Service Manual (OEM #S-406294) target one machine: getting your Series D crawler excavator back to factory condition. Inside you get hydraulic schematics tracing every circuit (track drive, swing, hoist, crowd, tool, and leveler cylinders) plus wiring schematics covering both the 12/24-volt system and the 24-volt system for machines with PIN 6270855 and after. A full troubleshooting section works through mechanical components, electrical faults, and hydraulic system failures, and the Disassembly and Repair chapter takes you through every mechanical, electrical, and hydraulic component in sequence. Set the hydraulic filter center post to 40 lb-ft (54 Nm) maximum; torque the digging brake cover capscrews to 65 lb-ft (88 Nm). Your machine is down and the clock is running. Grab this bookmarked PDF, search any spec by keyword, and get back to wrenching.
What's Inside This Case 40 Crawler Series D Manual
| System | Pages | Key Topics |
|---|---|---|
| General | 4-10 | Index, Safety Precautions, Introduction, Nomenclature, Description and Specifications |
| Preventive Maintenance | 11-23 | Introduction, Hydraulic System Pressures, Component Capacities, Lubricants, And Fluids, Maintenance Chart, Illustrated Listing of Grease Fittings, Itemized Maintenance Instructions |
| Mechanical System | 24-44 | Undercarriage Components, Engine and Related Parts, Turntable Swing, Boom and Attachments, Control Linkages |
| Electrical System | 45-67 | Introduction, Volt System |
| Hydraulic System | 68-98 | Introduction, System Maintenance, Main Hydraulic System, Track Drive Circuit, Swing Circuit, Hoist Cylinder Circuit, Crowd Cylinder Circuit, Tool Cylinder Circuit |
| Troubleshooting | 99-115 | Introduction, Mechanical Components, Volt Electrical System, Hydraulic System and Components |
| Mechanical and Electrical Components | 116-161 | Leveler Assembly, Track Roller, Digging Brake, Final Drive Transmission, Engine and Pump Drive, Swing Gearbox, Boom and Attachments, Wiring Harness Replacement |
| Hydraulic Components | 162-211 | Main Hydraulic Pump, Main Control Valve, Power Sensing Valve, Track Drive Motor, Swing Motor, Hydraulic Cylinders, Hydraulic Oil Tank, Solenoid Control Valve |
| Torque Charts and Schematics | 212-220 | Torque Charts, Electrical Schematics, Hydraulic Schematic |
Quick Reference Specifications
| Specification | Value | Page |
|---|---|---|
| Track roller bushing bolts torque | 40 lb-ft (54 Nm) | p. 119 |
| Digging brake cover capscrews torque | 65 lb-ft (88 Nm) | p. 123 |
| Starter solenoid voltage drop | .01 volt | p. 61 |
| Hydraulic filter center post torque | 40 lb-ft (54 Nm) maximum | p. 19 |
| Engine Displacement (Case 504BDT) | 504 cu. in. (8 259 cm³) | p. 8 |
| Maximum Torque (Case 504BDT) | 445 lb-ft (603 Nm) @ 1500 rpm | p. 8 |
| Turntable Bearing Capscrew Torque (5/8" Tread Dia., Horizontal Extension Only) | 200 lb-ft (270 Nm) | p. 38 |
