TM 10-3930-659-20 4-3. TROUBLESHOOTING SYMPTOM INDEX (Con't). Troubleshooting Procedure Page TRANSMISSION Acceleration Lacking ................................................................................................................................. 4-16 Foaming Hydraulic Fluid ........................................................................................................................... 4-16 Forklift Truck: Lacks: Acceleration.......................................................................................................................... 4-16 Power ................................................................................................................................... 4-16 Will Not Move in: Forward ................................................................................................................................ 4-15 Reverse ................................................................................................................................ 4-15 Forward Gear Does Not Move Forklift Truck ............................................................................................. 4-15 Hydraulic: Fluid Foams ................................................................................................................................. 4-16 System Overheats ........................................................................................................................ 4-16 Overheated Hydraulic System................................................................................................................... 4-16 Power Lacking........................................................................................................................................... 4-16 Reverse Gear Does Not Move Forklift Truck ............................................................................................. 4-15 Shifts Too Slowly ...................................................................................................................................... 4-16 ELECTRICAL TROUBLESHOOTING Adjustable Floodlight Not Working ............................................................................................................ 4-34 Alternator is Noisy ..................................................................................................................................... 4-21 Battery: Charging Indicator Remains Lit With Engine Running: High Voltage ......................................................................................................................... 4-23 Low Voltage.......................................................................................................................... 4-21 Electrolyte Level Low.................................................................................................................... 4-23 Overcharged (High Specific Gravity Reading) .............................................................................. 4-25 Undercharged (Low Specific Gravity Reading).............................................................................. 4-24 Using Too Much Water ................................................................................................................. 4-23 Blackout Lights Not Working ..................................................................................................................... 4-33 Blower Motor, Defroster Not Working ........................................................................................................ 4-35 Brake Lights Not Working.......................................................................................................................... 4-32 Defroster Blower Motor Not Working ......................................................................................................... 4-35 Domelight Not Working ............................................................................................................................. 4-33 Driving Lights Not Working........................................................................................................................ 4-32 Electrolyte Level Low, Battery ................................................................................................................... 4-23 Emergency Flashers Not Working ............................................................................................................. 4-31 4-4