System components
GF43.30>W>3300H
Retarder, component description
20.7.11
MODEL 963, 964 with CODE (B3H) Secondary water retarder
W43.30
>
1320
>
06
Location
Illustrated on model 963
1
Secondary water retarder
The secondary water retarder (1) is located
on the left in the direction of travel next to
the transmission output flange.
Task
The task of the secondary water retarder (1)
is to convert the flow energy of the engine
coolant into mechanical braking energy
when requested by the driver or a driving
assistance system.
W43.30
>
1298
>
05
Design
The secondary water retarder (1) is
designed on the principle of hydrodynamic
torque conversion.
External view of secondary water retarder
2
Coolant manifold, feed
3
Coolant manifold, return
4
Relief valve
A11
Retarder control (RCM) control unit
B933 Coolant temperature sensor
i
Introduction of engine OM 471 and exhaust aftertreatment
>
09/2011
>
197
– This printout will not be recorded by the update service. Status: 09 / 2011 –