312000740 - O015 FRONT SEAT BACKREST ADJUSTMENT HARDENING

Detachment and release of backrest adjustment knob
Test results
1CHECK ON CONFORMITY OF RETAINING ELEMENTSAll OKProblems encounteredOperation
Check the conformity of the retaining elements on the inside of the knob.Move on to Step 2Retaining elements damaged.Replace the knob    Op. 7045A24 FRONT SEAT BACKREST ANGLE ADJUSTMENT KNOB (ONE), LEFT OR RIGHT - R.R.
2CHECK ON CONFORMITY OF HANDLESAll OKProblems encounteredOperation
Check the conformity of the handles at the end of the joint connecting rod.Move on to Step 3Handles damagedReplace the backrest adjustment rod (releasing the retaining washers).
3CHECK ON JOINT CONNECTING ROD SEALAll OKProblems encounteredOperation
Check the seal of the joint connecting rod (star rod)Move on to Step 4Connecting rod released from seatFit the rod retaining washer and check the seal of the rod to traction.
4CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that the fault is no longer present.End of diagnosisThe fault persistsReplace the seat frameOp. 7045A86