Case 580SR, Service Manual

Page: 175 / 1068

SECTION 21 - TRANSMISSION 109
2.6 HYDRAULIC DIAGRAM
Pressure check port
Temperature check port
1. Operator’s compartment
2. Pressure gauge
3. Thermometer
4. Torque converter
5. Torque converter (pressure difference 4 bar) by-
pass valve
6. Radiator
7. Lubrication
8. Safety valve 10 bar cracking pressure
9. Solenoid pressure 5 bar
10. Pressure regulator valve 20 bar
11. By-pass valve pressure difference 4.3 bar
12. Filter
13. Pump
14. Air breather
15. Filter
16. Oil sump
17. Pressure reducer to 5.5 bar
18. Accumulator
19. Pressure booster 0 - 5.5 to 0 - 20 bar
20. Electronic controlled modulation valve 5.5 to
0 bar
21. Modulated pressure 0 to 20 bar
22. Clutch pressure 20 bar
23. Solenoid N/forward
24. Solenoid N/reverse
25. High/low solenoid
26. Solenoid 2nd/1st
27. Solenoid range modulation
28. Solenoid disconnect
29. Reverse clutch
30. Forward low clutch
31. Forward high clutch
32. 2nd clutch
33. 1st clutch
34. Disconnect clutch
4 3
r a b
2 3
r a b
1 7
°C
3 3
r a b
A A
°C
6 4
r a b
5 4
r a b
4 4
r a b
2 4
r a b
1 4
r a b
7 4
r a b
1 3
r a b
5 3
r a b
34 33
32 31
30 29
21
22
16
15
13
14
11
12
10
8
2
3
4
5
6
7
28
27
26 25
24 23
20
17
19
18
9
F27722
1
X
r a b
X
°C
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