SECTION 6
SPECIFICATIONS
Page 8
OM515C520C99/1E
DRESSTA
LOADER EQUIPMENT AND STEERING HYDRAULIC SYSTEM SCHEMATICS
The description of the assemblies shown in hydraulic system schematic, Fig. 6.3 (standard 515C
and 520 C loader with 2-spool control valve), 6.4 (standard 515C and 520 C loader with 3-spool
control valve):
1. Return Filter
2. Return Filter Check Valve
3. Reservoir Breather with Filter
4. Hydraulic Reservoir
5. Suction Strainers
6. Hydraulic Main Pump
7. Ground Driven Steering System Warning Light Switch
8. Ground Driven Steering Check Valve
9. Ground Driven Steering Pump Switch Spool (normal steering)
10. Ground Driven Steering Pump Switch Spools (emergency steering)
11. Ground Driven Steering Pump
12. Priority Valve
13. Steering System Relief Valve (20.7 [MPa])
14. Steering Valve Spool
15. Circuit Shock/Anticavitation Valve
16. Steering Valve
17. Steering Cylinders
18. Quickcoupling Cylinders
19. Bucket Cylinder
20. Quick Disconnect Couplers
21. Quickcoupling Solenoid Valve
22. Boom Cylinders
23. Hydraulic Control Valve
24. Quickcoupling and Bucket Cylinders Shock Valves
25. Boom Control Valve Spool
26. Bucket Control Valve Spool
27. Boom Lower Anticavitation Valve
28. Bucket Dump Anticavitation Valve
29. Relief Valve (20.7 [MPa])
30. Quick Disconnect Coupler (type B)
31. Quickcoupling Attachment Cylinders
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