TM 10-3930-659-34 Table 3-1.  Troubleshooting (Con’t). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 6.   Inspect engine block for cracks. Replace damaged engine block (see paragraph 5-1). TRANSMISSION 8.  TRANSMISSION SLIPS. Step 1.   Perform transmission fluid pressure test (see STE/ICE Test No.  GO11). Step 2.   Inspect transmission control valve for internal leaking gaskets. Remove transmission control valve and replace damaged gaskets (see paragraph 5-9). Step 3.   Inspect transmission control valve for restricted oil orifices and valves. Remove transmission control valve, and clean transmission control valve and oil orifices (see paragraph 5-9). Replace damaged springs (see paragraph 5-9). Replace damaged transmission control valve (see paragraph 5-9). Step 4.   Perform transmission pump flow test (see paragraph 4-36). Repair damaged transmission gear pump (see paragraph 5-11). Step 5.   Inspect transmission clutch discs for wear or damage (see paragraph 5-12). Replace damaged transmission clutch discs (see paragraph 5-12). 9.  FORKLIFT TRUCK WILL NOT MOVE IN F (FORWARD) OR IN R (REVERSE) GEARS. Step 1.   With transmission in gear, check drive shaft for rotation.  If drive shafts are rotating, perform troubleshooting on differentials. Step 2.   Perform transmission fluid pressure test (see STE/ICE Test No.  G011). Step 3.   Perform converter stall test (see paragraph 4-33). Replace damaged torque converter (see paragraph 4-38). Step 4.   Inspect transmission clutch discs for wear or damage (see paragraph 5-12). Replace damaged transmission clutch discs (see paragraph 5-12). 10.  LOW TRANSMISSION FLUID PRESSURE. Step 1.   Perform transmission fluid pressure test (see STE/ICE Test No.  G011). Step 2.   Inspect pressure regulator valve sleeve and spring for damage. Replace damaged pressure regulator valve (see paragraph 4-39). 3-8