STRUCTURE AND FUNCTION HYDRAULIC PUMP LS VALVE a. Port PLS (Control valve LS pressure inlet port) b. Port PA (Pump delivery pressure inlet port) c. Port PLP (LS valve signal pressure outlet port) d. Port PPL (PC valve signal pressure inlet port) e. Port Pa (Drain pressure outlet port) f. Port PSIG (LS control EPC valve pressure inlet port) g. Port PA (Pump delivery pressure inlet port) 1. Plug 2. Locknut 3. Sleeve 4. Spring 5. Seat 6. Spool 7. Piston 8. Sleeve PC VALVE a. Port Pa (Drain pressure outlet port) b. Port PPL (PC valve signal pressure outlet port) c. Port PA (Pump delivery pressure inlet port) d. Port PA2 (Pump delivery pressure inlet port) e.
Port PM (PC mode select pressure inlet port) 1. Piston 2. Spring 3. Seat 4. Spring 5. Seat 6. Spool 7. Piston 8. Sleeve 9. Locknut 10. Plug 11. Locknut 10-42