Hitachi LX15-7 LX20-7 LX30-7 LX40-7 Performance Check And Troubleshooting TTLA-0577-LX

Hitachi LX15-7 LX20-7 LX30-7 LX40-7 Performance Check And Troubleshooting TTLA-0577-LX
Size: 2.1 MB
Machine: Wheel Loader
Machine Model: LX15-7 LX20-7 LX30-7 LX40-7
Page: 65 Pages
Part Number: TTLA-0577-LX

Troubleshooting / Diagnosis
4-O. Engine
4-2. Powertrain I
 Machine Can Be Moved Neither In Forward Nor Reverse Direction
 Machine Can Be Moved Only In Forward Or Reverse Direction
 Drop In Moving Speed
 Poor Traction
 Machine Travels When Engine Is Running At Low Idle Speed
4-3, Powertrain Ii
 Od Leakage From Around Nut E Of Front Axle Drive Pinion E
 Oil Leakage From Oil Seal At Input Flange E Of Ftont Axle
 Od Leakage From Wheel Hub Od Seal E
 Od Leakage From Around Nut E At Reduction Gearbox Output Flange E
 Od Leakage From Od Seal :D I O Of Output Flange E / E
 Abnormal Noise Or Inability To Travel
4-4. Brake System
 Poor Braking
 Parking Brake Does Not Function
 Parking Brake Drags
4-5. Steering System
 Steering Is Impossible Or Hard
 Machine Pulls To One Side
4-7. Hydraulic System
 Lift Arm Fails To Rise Or Is Slow To Rise.
 Lift Arm Exclusively Lowers (Drifts) When Control Valve Is In “Hold (Neutral)” Position
 Lift Cylinder Does Not Generate Enough Force To Raise Front Wheels Off Ground
 Lift Arm Drifts Quickly At Specific Position
 With Load In Bucket Lift Arm Lowers Momentarily, Then Rises When Lift Lever Is Moved From “Hold (Neutral)” To “Raise” Position.
 Bucket Tilt-Back Motion Is Slow Or Tilt-Back Force Is Insufficient
 Bucket Tilts Forward With Control Valve In “Hold (Neutral)” State (Front Wheels Cannot Be Raised Off Ground)
 Bucket Drifts Quickly At Specific Position
 Bucket Sways During Travel
 Too Large Control Lever Operating Resistance