KNOWN INFO                  REASON FOR QUESTION     1. WARNING Read WARNING on following page. YES NO            TEST OPTIONS            Pressure Test or STE/ICE-R Test #51 START h6.  M1089 RH 30K WINCH DOES NOT OPERATE Repair or replace lower main valve assembly (para 16-84). Is hydraulic pressure between 2,950-3,050 PSI (20,340-21,030 kPa) at output of lower main valve assembly? If hydraulic pressure is not between 2,950-3,050 PSI (20,340-21,030 kPa), lower main valve is faulty. TM 9-2320-366-34-1 2-1006          Change 1 Materials/Parts   Rag, Wiping (Item 60, Appendix C)   Cap, Tube (Item 17.2, Appendix C)   Hose Assembly, Nonmetallic (Item 40.1, Appendix C)   Plug, Tube Fitting, Threaded (Item 55.1, Appendix C)   Tee, Tube (Item 88.1, Appendix C)   Dispenser, Pressure Sensitive Adhesive Tape   (Item 30, Appendix C) References   TM 9-4910-571-12&P Personnel Required   (2) INITIAL SETUP   Equipment Conditions     Engine shut down (TM 9-2320-366-10-1).     Control panel assembly covers, removed     (TM 9-2320-366-20-5).   Tools and Special Tools     Tool Kit, Genl Mech (Item 78, Appendix B)     STE/ICE-R  (Item 70, Appendix B)     Transmitter, Pressure (Item 1, Appendix G)        Pan, Drain (Item 43, Appendix B)     Goggles, Industrial (Item 28, Appendix B) Hydraulic tank oil level OK. MAIN WINCH RH FREE SPOOL switch to OFF. MAIN WINCH RH FREE SPOOL switch OK. MAIN WINCH RH FREE SPOOL solenoid valve OK. LH 30K winch operates. Hydraulic tubes and fittings OK. LH and RH stifflegs OK.        POSSIBLE PROBLEMS        Faulty lower main valve assembly. Faulty RH 30K winch assembly. Faulty 30K winch relief valve.