TM 5-3805-263-14&P-3
SYSTEMS OPERATION
SERVO VALVE
(Before a reduction in the stroke of the pistons)
1. Passage for oil from the case. 2. Valve spool. 3. Groove (three) in valve spool. 4. Passage to case. 5. Piston
assembly. 6. Cartridge for servo valve. 7. Chamber. 8. Sleeve. 9. Passage for oil at pump output pressure. 10. Hole
and passage to the case. 11. Passage for oil from pressure reduction valve.
VALVES IN THE PUMP
1. Passage for oil from the case. 2. Valve spool. 5. Piston assembly. 6. Cartridge for servo valve. 11. Passage for oil
from pressure reduction valve. 12. Piston. 13. Spring. 14. Swashplate. 15. Pressure reduction valve. 16. Piston. 17.
Piston with orifice. 18. Passage for oil at pump outlet pressure. 19. Oil passage. 20. Shuttle valve. 21. Oil01 line from
control valve.
3-8
