
SECTION 6
SPECIFICATIONS
Page 10
OM515C520C99/1E
DRESSTA
LOADER EQUIPMENT AND STEERING HYDRAULIC SYSTEM SCHEMATIC
The description of the assemblies shown in hydraulic system schematic, Fig. 6.5. (515C and 520C
upgraded loaders with 2-spool control valve):
1. Return Filter
2. Return Filter Check Valve
3. Reservoir Breather with Filter (0.002 and 0.17 [MPa])
4. Hydraulic Reservoir
5. Suction Strainers
6. Relief Valve (3 [MPa])
7. Pilot Pump
8. Hydraulic Main Pump
9. Check Valve
10. Ground Driven Steering System Warning Light Switch
11. Ground Driven Steering Pump Switch Spool (normal steering)
12. Ground Driven Steering Pump Switch Spools (emergency steering)
13. Ground Driven Steering Pump
14. Priority Valve
15. Steering Control Valve
16. Steering Control Valve Spool Assembly
17. Circuit Shock Valves
18. Circuit Anticavitation Valves
19. Steering Cylinders
20. Hydraulic Accumulators
21. Solenoid Valves
22. Hydraulic Control Valve
23. Bucket Cylinder Shock Valves (24 [MPa])
24. Quickcoupling Cylinders
25. Quick Disconnect Couplers
26. Quickcoupling Solenoid Valve
27. Bucket Cylinder
28. Boom Cylinder
29. Hydraulically Controlled Check Valve
30. Boom Control Valve Spool Assemblies
30A. Bucket Control Spool Assembly
31. Boom Cylinder Shock Valve (27 [MPa])
32. Relief Valve (20.7 [MPa])
33. Anticavitation Valve (0.7 – 0.9 [MPa])
34. Boom Emergency Lowering Valve
35. Pilot Lock Solenoid Valve
36. Hydraulic System Pilot Valve
Summary of Contents for 515C
Page 3: ...OM515C520C99 1E DRESSTA ...
Page 5: ......
Page 7: ......
Page 10: ...SECTION 1 INTRODUCTION ...
Page 12: ......
Page 17: ...SECTION 2 SAFETY PRECAUTIONS ...
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Page 37: ...SECTION 3 MACHINE TRANSPORT AND STORAGE ...
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Page 49: ...SECTION 4 OPERATING ...
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Page 107: ...SECTION 5 MAINTENANCE ...
Page 165: ...SECTION 6 SPECIFICATIONS ...
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Page 181: ...SECTION 6 SPECIFICATIONS Page 16 OM515C520C99 1E DRESSTA WIRING DIAGRAMS ...
Page 182: ...SPECIFICATIONS SECTION 6 Page 17 DRESSTA OM515C520C99 1E WIRING DIAGRAMS ...
Page 187: ...SECTION 6 SPECIFICATIONS Page 22 OM515C520C99 1E DRESSTA WIRING DIAGRAMS ...