Printed by Liebherr under ID 10359401, this 790-page Liebherr R 924 service manual PDF is the factory workshop book for the R 924 Compact hydraulic excavator and material handler. Load sensing control, the hydraulic layout and the adjustment guidelines take up a large share of the book, backed by hydraulic schematics and teardown coverage of the DPVP 108 double variable-displacement pump, the hydraulic motors and the cylinders. Wiring diagrams sit with an electrical section on the S2 control unit and monitoring display, and your undercarriage work is covered as well, from track component wear and removal to swing gear, travel gear and central lubrication. Check leak oil against the 8 l/min maximum at 300 bar, and torque the M12x35 grade 10.9 bolts to 110 Nm. Sometimes it's just you and the machine, with nobody to call. Bookmarks and a live text layer take you straight to the right page, and the R 924 goes back to work running.
What's Inside This Manual
| System | Pages | Key Topics |
|---|
| General Information | 1-73 | Safety Instructions |
| Tools | 74-131 | Special Tools for Maintenance and Repair, Special Tools for Liebherr Diesel Engines, Special Tools for the Hydraulic System, Special Tools for Electrical Connectors |
| Technical Data / Maintenance Guidelines | 132-149 | Technical Data, Control and Maintenance Chart |
| Engine | 150-155 | Engine Type D 924 TI-E |
| Coupling / Splitterbox | 156-173 | Coupling, Splitterbox |
| Hydraulic System | 174-255 | Load Sensing Control, Layout of Hydraulic System, Adjustment Guidelines |
| Hydraulic Components | 256-381 | Double Variable-Displacement Pump DPVP 108, Hydraulic Fixed-Displacement Motor HMF 02, Hydraulic Variable Displacement Motor FMV, Hydraulic Cylinders |
| Electrical System | 382-467 | Arrangement of Components, Monitoring Display, Control Unit S2 |
| Swing Gear | 468-489 | Swing Gear Transmission GS3000-2, Swing Gear Brake |
| Swing Ring | 490-501 | Swing Ring Function |
| Travel Gear | 502-521 | Travel Gear FAT |
| Track Components | 522-569 | Wear on Track Components, Removal and Installation of Track Components |
| Options | 570-605 | Pipe Fracture Safety Valve, Hydraulic Installation Kit AHS 11 |
| Cab / Heater / Air Conditioning System | 606-669 | Auxiliary Heating D5WS, Heating and Air-Conditioning System |
| Central Lubrication | 670-790 | Centralized Lubrication System, Lubrication Pump, Progressive Distributor SX-E, Progressive Distributor MX-F |
Quick Reference Specifications
| Specification | Value | Page |
|---|
| Max. torque | 760 N.m (at 1500 rpm) | p. 134 |
| 2x M12x35-912-10.9 | 110 Nm | p. 283 |
| Boom cylinder Ø piston / rod | (2x) 130 / 90 mm (Type 1055), (2x) 140 / 85 mm (Type 1056 / 1083 Tunnel) | p. 135 |
| Max. leak oil at (300 bar) | 8 l/min | p. 284 |
| Lowering speed of the attachment | ~4 sec. | p. 142 |
| Emergency operation speed | approx. 1700 rpm | p. 199 |
| Fan speed with air-conditioning system activated | approx. 1000 rpm | p. 199 |
| Valve nominal width (220 Hoist cylinder) | 25 (1") mm | p. 346 |
| Valve nominal width (240 Stick cylinder) | 25 (1") mm | p. 346 |
| Axial play max at delivery | 0,6 mm | p. 493 |
| Axial play maximum | 1,8 mm | p. 493 |
| Dry weight approx. | 180 kg | p. 506 |
