Shaft Fault Diagnosis and Troubleshooting

Shaft mechanical damage, wear, deformation and loss of dynamic balance, can cause abnormal sound produced car in motion and vibration, can cause serious damage to related components. Car driving, issued in the initial or emergent accelerant, "Gordon" sound, and apparently showing parts Songkuang feeling, if not drive axle gear Songkuang are obviously mechanical Songkuang shaft. Songkuang nothing more than the site of universal joint cross bearing or flange steel bowl with fork, telescopic spline shaft and spline sleeve. In general, the cross-shaft mine shaft and the bearing capacity should not exceed 0.13mm, telescopic spline shaft and spline sleeve meshing gap should not exceed 0.3mm. Exceed the limit should be used to repair or replace.

Happen if the car driving chassis "buzzing" sound, but the higher speed, louder. This is generally due to the universal joint cross shaft and bearing wear Songkuang, drive shaft center bearing wear, the middle rubber hanger bearing damage or loose, or not as a fixed position due to hanger.

6 × 4 vehicles in the heavy duty, particularly in the occasional bumps in the driving percussion sound issue, should pay attention to check whether the change in position after the bridge balance shafts for the interference with the shaft. If the car running while the noise increases as the speed increases, and with a jitter, which is generally caused due to loss of balance shaft. Feel the vibration in the cab the most obvious. Balance shaft unbalance should be less than 100g.cm.

Balance shaft failure can cause serious damage to related components. The most common is the middle of the clutch shell cracks and the fatigue failure of rubber bearing.

The middle of the installation of drive shaft hanger is very important in the maintenance. If the hanger improperly located, will increase the operating shaft resistance and noise, resulting in early damage of bearings.In the re-installation of hanger, the first fixed bolts do not tighten hanger of the vehicle driving wheel with the jack fragmented ground, and hung low speed, slowly rotating shaft to shaft and hanger automatic aligning, then hanger fixed bolt.