TRANSMISSION HYDRAULIC CONTROLS
SYSTEMS OPERATION
TM 5-3805-263-14&P-2
FIRST SPEED FORWARD
HYDRAULIC CONTROLS WITH ENGINE RUNNING AND SELECTOR LEVER IN FIRST SPEED FORWARD
1. Oil filter.
21. Passage to differential, check, and
4. Main relief valve.
5. Oil cooler.
7. Oil pump.
9. Differential lock valve.
14. Manual modulation valve.
15. Differential, check, and safety spool.
16. Pilot selector spool.
17. Speed selector spool (clutch No. 4).
18. Speed selector spool (clutch No. 5).
19. Passage from load piston.
20. Relief valve.
32. Load piston.
safety valve.
22. Passage to No. 4 clutch.
23. Passage to No. 5 clutch.
24. Cooler bypass valve.
25. Lubrication relief valve.
26. Passage to differential lock clutch.
27. Passage to differential, check, and
33. Passage to No. 1 clutch (FORWARD).
34. Passage to No. 2 clutch (REVERSE).
35. Speed selector spool (clutches No. 6
safety valve.
28. Direction selector valve.
29. Priority reducing valve.
30. Passage to No. 6 clutch.
31. Modulating reducing valve.
and No. 7).
36. Speed selector spool (clutch No. 3).
37. Passage to No. 7 clutch.
38. Passage to No. 3 clutch.
A. Passage for signal pressure.
B. Passage for signal pressure.
E. Passage for signal pressure.
F. Passage for signal pressure.
G. Passage for signal pressure.
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