| 0 | PRELIMINARY CHECKS | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| First of all, check the engine idle speedCheck the tyre pressure. | Move on to Step 1 | 1. Engine idle irregular | 1. Proceed as instructed in the See table D010 ENGINE IDLE IRREGULAR |
| 2. Tyre inflation pressure not correct | 2. Make sure tyres are inflated to the correct pressure. |
| 1 | ENGINE FLEXIBLE MOUNTINGS CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the condition and the centering of the engine frame, the engine flexible mountings and the engine side and gearbox side connecting rods. | Move on to Step 2 | 1. Engine flexible mountings faulty. | 1. Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque, see Assembly Op. 1008A POWER UNIT FASTENINGS |
| 2. Engine side and gearbox side connecting rods faulty. | 2. Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque, see Assembly Op. 1008C POWER UNIT REACTION ELEMENTS |
| 3. Engine frame faulty. | 3. Adjust the fastenings: loosen the bolts, centre them in their housings and tighten them to the recommended torque.Op. 4410D13 |
| 2 | STEERING COLUMN CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the condition of the steering column support and that it is working properly. In particular, check:- that there is no clearance between the support bushes and steering column;
- that the steering column joints are correctly tightened.
| Move on to Step 3 | 1. Bushes worn or damaged. | 1. Restore the efficiency of the steering column. If necessary, replace the bearings involved Op. 4110A30 SUPPORT WITH STEERING CONTROL SHAFTS - R+R |
| 2. Joint spider clearance too large. | 2. Tighten the bolts or replace the steering column Op. 4110A30 SUPPORT WITH STEERING CONTROL SHAFTS - R+R |
| 3 | STEERING WHEEL ADJUSTMENT DEVICE CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check the condition of the steering wheel adjustment device. In particular, check that the clearance between the device and the steering column is correct. | Move on to Step 4 | Coupling with excessive clearance. | Restore the efficiency of the steering wheel adjustment device. Replace it if necessary. |
| 4 | TIMING CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the engine timing is correct. | Move on to Step 5 | Timing not correct. | Restore correct engine timingOp. 1032B14 |
| 5 | FLYWHEEL BALANCING CHECK | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|
| Check that the flywheel is correctly balanced. | End of diagnosis | Balancing not correct. | Replace the flywheel Op. 1024B10 ENGINE FLYWHEEL - R + R FOR VERSIONS WITH MANUAL GEARBOX |
