New Holland T8010, Service Manual

Page: 71 / 81

DISTRIBUTION SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
PRIMARY HYDRAULIC POWER SYSTEM - Hydraulic schematic
frame 01
T8050 EEAA, T8050 WE
Standard flow with suspension control and autoguidance
Pressure and flow compensating (PFC) pump
Regulated circuit pump flow
Charge/lube pump flow
Return to tank/sump
Megaflow pump
1. Hitch valve 28. Service brake L. Lube regulator/relief valve
2. Hitch cylinders 29. Steering hand pump M. Chassis ground
3. Power beyond manifold 30. Steering cylinders N. Bypass valve
4. Charge/lube pump 31. Park/emergency brake O. Odd/even lube
5. PFC pump 32. Brake release pump P. Drop box lube
6. Screen/compensator 33. Filter Q. Creep drive lube
7. Oil cooler 34. Suspension control valve R. Master clutch lube
8. Priority/regulator valve 35. Suspension axle cylinders S. Right hand brake/differential lube
9. PTO/differential lock valve 36. Speed housing T. MFD/range lube
10. PTO clutch brake 37. Autoguidance valve U. Left hand brake/differential lube
11. Differential lock clutch 38. PX sensor port V. Damping
12. Transmission control valves 39. Park brake valve W. Bevel pinion lube
13. MFD clutch 40. Trailer brake coupler X. Lube supply
14. Low clutch 41. Trailer brake priority valve Y. PTO clutch lube
15. Medium clutch 42. Manual geroter aa. Inlet
16. High clutch 43. Added geroter bb. To park brake valve solenoid
17. Reverse clutch 44. To trailer brakes
18. Fifth clutch A. Supply
cc. Switch opens when pedal reaches
full stroke at hyd pressure loss
19. Third clutch B. Tank dd. Pressure sensor – rod
20. First clutch C. Signal ee. Pressure sensor – piston
21. Even clutch
D. Relief ff. Rod solenoid
22. Odd clutch E. Pilot supply gg. Piston solenoid
23. Creep or 50 km/h clutch F. Cylinder port hh. Rod
24. Park clutch G. Case drain jj. Piston
25. Master clutch H. Return kk. To regulated circuit
26. Master clutch inching valve J. Pilot drain nn. To lube
27. Brake valve K. Regulated pp. To brake valve
84318454 14/03/2010
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