STRUCTURE, FUNCTION, & MAINTENANCE STANDARD CONTROL VALVE 12 (6/9) ARM CONTROL VALVE R. H. TRAVEL CONTROL VALVE 1. Unload valve 2. Main relief valve 3. Safety valve (Boom RAISE) 4. Lift check valve 5. Safety-suction valve 6. Spool 7. Pressure compensation valve (OUT) 8. LS shuttle valve 9. Pressure compensation valve (IN) 10. Safety-suction valve 11. Check valve for regeneration circuit 12. Suction valve 13. Spool 14. Pressure compensation valve (Reverse) 15. LS shuttle valve 16. Pressure compensation valve (For- ward) 17. Suction valve PC210/240-7K 10-59