TM 10-3930-671-24 Table 2-2.  Unit Troubleshooting Procedures - CONT: MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION STEERING SYSTEM (CONT.) 28. HARD STEERING. Step 1. Check steering system relief pressure at the pressure relief valve steering line and pump fitting (Appendix F, Power Steering System-Relief Pressure Setting, Section 9.1). If steering system relief pressure setting is below 1200 psi (8270 kPa), adjust or replace pressure relief valve.  Notify DS/GS maintenance. If steering system relief pressure setting is between 1200 and 1300 psi (8270-8960 kPa), go to step 2. Step 2. Check power steering gear hydraulic oil flow (Appendix F, Steering Column and Valve, Section 10.2). If power steering gear hydraulic oil flow is not 4 gallons per minute (GPM), faulty steering valve, notify DS/GS maintenance. If power steering gear hydraulic oil flow is 4 gallons per minute (GPM), go to step 3. Step 3. Check hydraulic fluid system for air leaks (Appendix F, Hydraulic System Relief Pressure Check &Adjustment, Section 10.2). If air leaks are present, secure connections (Para 3-30). If air leaks are not present, notify DS/GS maintenance. TRANSMISSION 29. TRANSMISSION WILL NOT OPERATE IN FORWARD OR REVERSE. Step 1. Check level and condition of transmission fluid. If transmission fluid level is low or fluid is bumt, replace transmission fluid (Appen- dix F, Transmission Troubleshooting, Section 7.2). If transmission fluid is OK, go to step 2. 2-18