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Adjusting modulating pressure - AR27.10-P-0180-01B

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REFER TO COMPONENT MODIFICATIONS Vacuum unit for modulating pressure adjustment modified Transmission 722.5 BT27.10-P-0001-01A 
  1. Disconnect vacuum line.
  2. Turn cap from position "A" to "B".

    IMPORTANT

    This makes it possible to reduce the modulating pressure by 0.2 bar.

    It is only necessary to test the modulating pressure with a pressure gauge after replacing the modulating pressure unit (60).

  3. If the adjusting range of 0.2 bar is insufficient, press off the cap.

    IMPORTANT

    Fig 1: Identifying Modulating Pressure Unit In Position A And B
    G04679338Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

    This destroys the cap.

  4. Pull the tab washer out of the retaining slots until it can be turned.
  5. Adjust the adjusting screw with the tab washer (2).

    IMPORTANT

    One revolution results in a change in pressure of approx. 0.4 bar.

  6. Press tab washer (2) back into the retaining slots.
  7. Press on new cap in position "A".
    Fig 2: Identifying Tab Washer On Modulating Pressure Unit
    G04679339Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
  8. Measure modulating pressure again.
  9. Connect vacuum line.