STRUCTURE, FUNCTION AND MAINTENANCE STANDARD 10-SPOOL CONTROL VALVE 1. Check valve 2. Spring 3. Spool (for variable gauge selector) (If equipped) 4. Spool (for arm) 5. Spool (for swing) 6. Spool (for L.H. travel) 7. Spool (for blade) 8. Spool (for 2-speed travel selector 9. Spool (for swing) 10. Spool (for R.H. travel) 11. Spool (for boom) 12. Spool (for bucket) 13. Main relief valve (2each) 14. Safety valve (2 each) 15. Safety valve (2 each) PC09-1 10-21 (4)