| STEP | OPERATIONS TO BE CARRIED OUT | TEST RESULTS |
|---|
| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| First, check:- that the tyres are the correct type, in good condition and correctly inflated
- the condition of the wheel rims
- that the damper mass is correctly fastened to the driveshaft
| Move on to Step | 1. Tyres unsuitable or worn | 1. Replace the tyres |
| 2. Pressure not correct | 2. Restore the correct pressure |
| 3. Rims dented / distorted | 3. Replace the rims |
| 4. Mass with slack fastening | 4. Renew the mass fastening |
| 1 | FRONT WHEEL BEARING CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Road test the vehicle at a constant speed steering gradually to the left and the right checking whether the intensity of the noise increases | Move on to Step | The noise increases as the steering angle increases: wheel bearing damaged | Replace the wheel hub bearing See in Op. 4450C32 BEARING for one front wheel hub, l/h or r/h - Replace |
| 2 | INTERMEDIATE SHAFT CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check: - The condition of the intermediate shaft bearing support and that it is correctly fastened;
- The condition of the intermediate shaft making sure there is no clearance;
- Operation of the bearing.
| Move on to Step | 1. Support damaged/slack | 1. Tighten the support or replace it, if necessary See in Op. 2710A32 Intermediate driveshaft BEARING SUPPORT - R.R. with intermediate driveshaft removed |
| 2. Shaft damaged / clearance | 2. Replace the shaft See in Op. 2710A30 INTERMEDIATE DRIVE SHAFT - R.R. with right driveshaft removed |
| 3. Bearing worn | 3. Replace the bearing |
| 3 | WHEEL BALANCING CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the front wheels are correctly balanced | Move on to Step | Wheels not balanced | Balance the front wheels |
| 4 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the fault is no longer present | | | |