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| 0 | PRELIMINARY CHECKS | All OK | Problems encountered | Operation |
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| Check whether the problem is accompanied by a hardening of the steering or noise. Visually inspect the level of the power assisted steering fluid in the reservoir. | Move on to Step 1 | Hardening of the steering detected. | Restore the correct level and carry out a road test. If the fault persists, move on to Step 1. |
| Power assisted steering fluid level too low. | Continue following the See table H010 STEERING HARD / (STEERING IN BOTH DIRECTIONS) |
| 1 | RESERVOIR LEAKS CHECK | All OK | Problems encountered | Operation |
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| Visually check that there are no fluid leaks from the power assisted steering fluid reservoir. | Move on to Step 2 | Leaks from the power assisted steering fluid reservoir. | Replace the power steering fluid reservoir Op. 4130B10 POWER STEERING FLUID RESEVOIR - R.R. |
| 2 | PIPE CHECK | All OK | Problems encountered | Operation |
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| Visually check, using talc, that there are no leaks from the connectors for all the rigid pipes and hoses for the power assisted steering system. | Move on to Step 3 | Leaks from pipes. | Tighten the connectors or replace the damaged parts, replacing all the seals. |
| 3 | STEERING BOX CHECK | All OK | Problems encountered | Operation |
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| Visually check that there are no fluid leaks from:- the rigid pipes on the steering box and the attachments;- the lower steering box plug;- the steering column mounting;- the steering box itself. | Move on to Step 4 | Leaks from the rigid pipes | Tighten the connectors or replace the steering box Op. 4130A15 POWER STEERING BOX R R WITH FRONT SUSPENSION FRAME REMOVED |
| Leaks from the steering column mounting or the actual steering box. | Replace the steering box Op. 4130A15 POWER STEERING BOX R R WITH FRONT SUSPENSION FRAME REMOVED |
| Replace the steering box Op. 4130A15 POWER STEERING BOX R R WITH FRONT SUSPENSION FRAME REMOVED |
| 4 | STEERING BOX BOOT CHECK | All OK | Problems encountered | Operation |
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| Inspect the steering box boots and check there is no fluid | End of diagnosis | Leaks from the steering box seals. | Replace the steering box Op. 4130A15 POWER STEERING BOX R R WITH FRONT SUSPENSION FRAME REMOVED |
