TM10-3930-660-20 Table  2-3. Mechanical Troubleshooting (Cont'd) MALFUNCTION TEST OR INSPECTION CORRECTIVE  ACTION c. Check for high transmission oil level. If too high, drain transmission oil to proper level, para. 9-7. d. Check for proper transmission oil. Check oil specifications (see LO10-3930-660-12). If incorrect, replace with proper oil, para. 9-7. 30. NO POWER   TRANSMITTED IN ANY RANGE Step 1. Check for drive line failure. Repair input and output transmission or replace propeller shafts if necessary, para. 10-3 and 10-4. Step 2. Check for range selector valve not positioned properly. Replace control valve linkage as necesary, para. 9-4. Step 3. Check for low transmission oil level. Add oil to transmission as necessary, LO10-3930-660-12. Step 4. Check for low main pressure. Refer to Test 31, Low Main Pressure, in this table. 31. LOW MAIN PRESSURE Step 1. Check for low transmission oil level. Add oil to transmission as necessary, LO10-3930-660-12. Step 2. Check for leaks in hydraulic system. Check each range for localizing internal leaks. Replace or repair hoses and lines as necessary, para. 18-26. 32. NO POWER TRANSMITTED IN ONE RANGE Check for manual selector linkage out of adjustment. Adjust selector linkage as necessary, para. 9-3. 33. SLOW CLUTCH ENGAGEMENT Step 1.   Check for low transmission oil level. Fill transmission to proper oil level, LO10-3930-660-12. 2-42