Actuator; Side Channel Pump; Twisted Teeth - Mercedes-Benz OM 471 Introduction Into Service Manual

Actuator (6)

The actuator (6) controls the switching valve (7) and the control
valve (10) via a piston rod. For this purpose, the actuator (6) is
pneumatically actuated by the retarder control unit (RCM) (A11)
and the actuator (6) converts the pneumatic pressure into
mechanical movement.

Side channel pump (11)

When the retarder function is shut off, the side channel pump (11)
pumps the engine coolant in the working chamber back into the
coolant circuit. The side channel pump (11) is connected directly to
the retarder shaft (15) and is actuated via the relief valve (4).

Twisted teeth (13)

The twisted teeth (13), in combination with the compression
spring for rotor sliding (12), allows the rotor to be moved, thus
regulating the distance between rotor (17) and stator (18).
i Introduction of engine OM 471 and exhaust aftertreatment > 09/2011 >
– This printout will not be recorded by the update service. Status: 09 / 2011 –
System components
W43.30>1323>11
W43.30>1325>11
W43.30>1326>11
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