| | Results of the tests |
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation |
|---|
| Carry
out a test, steering on full lock in various conditions to check
whether the steering stiffens in both directionsVisually inspect the power assisted steering fluid level in the
reservoir | Continue to Step 1 | Stiffness in one direction
only | See
table H11 |
| Power assisted steering fluid level too low | Restore the correct level, if there are leaks,See
table X30 |
| 1 | TYPE OF FAULT CHECK | All OK | Problems met | Operation |
|---|
| Carry
out a test, steering on full lock in various conditions: ascertain
how the fault arises | Stiffness continuous and constant:Continue to Step 2 | Stiffness intermittent | Check that the filter inside
the reservoir is correctly positioned.If necessary, replace the
reservoir Op. 4130B10 : |
| Stiffness only during idling | Check for any restrictions in the system pipes, flexible
and rigid.If necessary, replace the damaged parts, replacing
all the seals (see Assembly 4130B) |
| Stiffness in end of travel position | Restore the correct wheel geometry (see Assembly 4450A) |
| 2 | CHECK THE STEERING LINK | All OK | Problems met | Operation |
|---|
| Check
the condition of the steering link. | Continue to Step 3 | Tie-rods damaged or worn | Replace the links Op. 4110B10 |
| 3 | STEERING COLUMN BEARINGS CHECK | All OK | Problems met | Operation |
|---|
| Check
the condition and efficiency of the steering column support bearings | Continue to Step 4 | Bearings worn or damaged | Restore the efficiency of
the steering column.If necessary, replace the bearings involved Op. 4110A31 |
| 4 | POWER ASSISTED STEERING PUMP CHECK | All OK | Problems met | Operation |
|---|
| Check
that the power assisted steering pump is working properly | Continue to Step 5 | Belt slack | Check and, if necessary,
replace the belt |
| Power assisted steering pump malfunction | Replace the power assisted steering pump Op. 4130B20 |
| 5 | CHECKING CORRECT OPERATION | All OK | Problems met | Operation |
|---|
| Check
that the fault is no longer present | End of diagnosis | Fault persists | Search for the
fault starting from another symptom' |