194003853 - O002 FRONT SEAT BACKREST ANGLE ADJUSTMENT NOT WORKING

Hardness during the adjustment of the backrest
0PRELIMINARY CHECKSALL OKPROBLEMS ENCOUNTEREDACTION
Operate the backrest adjustment knob without resting your back against the backrest and check whether the hardness persists.End of diagnosis1. Hardness disappears1. Explain to the customer that the adjustment should be carried out without resting their back on the backrest.
2. Hardness persists2. Move on to Step 1
1CHECKS ON KNOB ON COVERALL OKPROBLEMS ENCOUNTEREDACTION
Check for interference with the cover (knob on cover).Move on to Step 2Presence of interference at the knob on the cover.Remove the interference and check that the regulator is working properly.
2CHECKS ON THE SEATALL OKPROBLEMS ENCOUNTEREDACTION
Remove the seat from the vehicle    Op. 7045A10 FRONT SEAT (ONE), LEFT OR RIGHT - R.R.remove the side cauterization (left and right), release the joints and check for the presence of paint lumps and/or machining residuesMove on to Step 3Presence of paint lumps and/or machining residues.Eliminate the foreign bodies, lubricate and run in with at least five complete operating cycles.
3CHECK ON THE CORRECT PHASING OF THE BACKREST ADJUSTERSALL OKPROBLEMS ENCOUNTEREDACTION
Check that the phasing of the backrest adjusters is correct by moving the backrest.Move on to Step 4The backrest moves with a sinusoidal movementPartly release the joint connecting rod (removing the washer fitted on the rod) and rephase the adjusters.
4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer present.End of diagnosisThe fault persistsReplace the seat frame    Op. 7045A86 FRONT SEAT FRAME (ONE), LEFT OR RIGHT, R.R.