Case 580SR Service Manual page 187

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SERVO CONTROL PRESSURE SYSTEM
Suction oil
High pressure oil
Torque Converter and Lubrication Oil
1. Transmission sump
2. Transmission breather
3. Suction strainer
4. Gerotor oil pump
5. Pressure oil filter
6. Filter by-pass valve 4.3 bar
7. System pressure test port 20 bar
8. System pressure regulating valve 20 bar
9. Oil flow to converter
10. Oil flow to shift spools
11. Pressure reducing valve 5.5 bar
SECTION 21 - TRANSMISSION
12. 2nd/1st Solenoid
13. Range modulation solenoid
14. 4WD solenoid
15. High/low solenoid
16. Neutral reverse solenoid
17. Neutral forward solenoid
18. Electronic modulation valve 0-5.5 bar
19. Accumulator
20. Pressure booster 0-20 bar
21. Modulated pressure to shift spools 0-20 bar
Return to oil tank
Pilot pressure
Modulated pilot oil
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