TM  10-3930-638-24&P 3-30.   HYDRAULIC   LIFT   SYSTEM   MAINTENANCE a. Control Valve. This task covers: a.  Removal d. b; Disassembly e. c.  Cleaning f. INITIAL   SETUP Inspection/Repair Reassembly Installation/Replacement TOOLS No. 1 Common Organiza- tional  Maintenance  Tool  Kit MATERIALS/PARTS Cleaning  solvent  P-D-680 Clean  cloths Clean  hydraulic  oil  (refer  to current  lubrication  order) Seal  kit Spool positioner kit Spool seal retainer kit Load check plug kit Load check plug seal kit Relief plug kit Relief plug seal kit EQUIPMENT   CONDITION NSN  4910-00-754-0654 Paragraph Condition Description Vehicle parked on level surface, mast tilted forward, forks resting on ground, engine  off,  and  parking  brake  applied. 2-53h Noise baffle mat removed. All control levers on control valve oper- ated several times to relieve hydraulic pressure. 2-56g(1) Hydraulic  reservoir  drained. 3-204