TM  10-3930-638-24&P 3-29.   HYDRAULIC   LIFT   SYSTEM   TROUBLESHOOTING   (cont) MALFUNCTION TEST  OR  INSPECTION CORRECTIVE  ACTION 6.  TILT  CYLINDER  ASSEMBLIES  OPERATION  SLUGGISH NOTE After completion of each check, turn engine off. Step 1. Check pressure relief valve setting (para 2-48b(2), steps 20 through 22). a. If pressure relief valve setting is not correct, adjust for proper setting (para 2-48b(2), step 23). b. If pressure relief valve setting is okay, proceed to step 2. Step 2. Perform step 5 of MALFUNCTION entry 5 above. Same as step 5 of MALFUNCTION entry 5 above, 7. UNABLE TO ROTATE LOAD (ALL OTHER FUNCTIONS NORMAL) NOTE After completion of each check, turn engine off. Step 1. Check rotation cylinder assembly for hydraulic oil leakage. a. If rotation cylinder assembly is leaking hydraulic oil, remove and repair it (para 3-30d). b. If rotation cylinder assembly is not leaking hydraulic oil, proceed to step 2. Step 2. Check hose assemblies between rotation cylinder assembly and control valve for hydraulic oil leakage. a. If hose assemblies are leaking hydraulic oil, replace (para 2-56f). b. If hose assemblies are okay, proceed to step 3. Step 3. Check control valve for hydraulic oil leakage. a. If control valve is leaking hydraulic oil, remove and repair it (para 3-30a). b. If control valve is okay, proceed to step 4. 3-201