TM 10-3930-659-20 Table 4-3.  Hydraulic Troubleshooting (Con't). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 17.  STEERING WHEEL CAN BE TURNED WITH FRAMES AGAINST STEERING STOP. Inspect for leaking hydraulic lines, hoses, and fittings. Tighten all hydraulic lines, hoses, and fittings. Replace worn or leaking preformed packings, lines, hoses, or fittings (see paragraph 17-14, 17-15, 17-16, 17-17, 17-18, 17-19, 17-20, 17-21, 17-22, 17-23, 17-24, 17-25, 17-26, 17-27, 17-37, 17-38, or 17-39). Replace damaged crossover relief valve (see paragraph 12-25). 18.  STEERING SYSTEM VIBRATES. Test priority valve relief pressure (see paragraph 12-27). Adjust priority valve relief pressure (see paragraph 12-27). Replace damaged priority valve (see paragraph 12-28). Replace damaged crossover relief valve (see paragraph 12-25). 19.  STEERING VALVE BINDS OR STEERING WHEEL DOES NOT RETURN TO CENTER POSITION WHEN RELEASED. Inspect steering column for binding by removing steering column (see paragraph 12-3) and checking for free rotation. If steering column is binding, replace steering column (see paragraph 12-3). 20.  STEERING VALVE LOCKS UP. Step 1.  Remove hydraulic reservoir suction filter and hydraulic oil return filter, and inspect for contamination (see paragraphs 17-29 and 17-31). Drain hydraulic reservoir (see LO 10-3930-659-12), replace hydraulic reservoir suction filter (see paragraph 17-29) and hydraulic oil return filter (see paragraph 17-31), and fill hydraulic reservoir with hydraulic fluid (Item 19, Appendix C) (see TM 10-3930-659-10). Step 2.  Test steering valve for leakage in center position (see paragraph 12-23). Replace damaged steering valve (see paragraph 12-24). 21.  FORKLIFT TRUCK TURNS WHEN STEERING VALVE IS IN CENTER POSITION. Test steering valve for leakage in center position (see paragraph 12-23). Replace damaged steering valve (see paragraph 12-24). 4-42