TM 10-3930-669-20 2-18.  HYDRAULIC SYSTEM TROUBLESHOOTING. This paragraph covers Hydraulic System Troubleshooting.  The Hydraulic System Fault Index, Table 2-8, lists faults for the hydraulic system of the forklift. Table 2-8.  Hydraulic System Fault Index Fault No. Troubleshooting Procedure Page 1. No Lift/Shift or Pivot/Tilt Functions ..............................................................................2-422 2. Tilt Cylinders Do Not Operate or Operate Slowly .........................................................2-428 3. Pivot Cylinder Does Not Operate or Operates Slowly...................................................2-436 4. No Lift and Shift Functions...........................................................................................2-444 5. Steering Cylinder Does Not Operate ............................................................................2-450 6. Side Shift Cylinder Does Not Operate..........................................................................2-456 7. Lift Cylinder(s) Does Not Operate ................................................................................2-462 8. Load Cannot Be Lifted to Maximum Height..................................................................2-468 9. Lift Cylinder(s) Will Not Hold Load (Downdrift).............................................................2-474 10. Hydraulic Mast Lift Speed Sluggish..............................................................................2-482 2-421