INSTALLATION & MAINTENACE MANUAL
RCOe2100/03.06
12
Motor Type MRD/MRDE/MRDA – dual displacement motor, single pistons row
Motor Type MRV/MRVE/MRVA – variable displacement motor, single pistons row
For the motor type MRD/MRDE/MRDA the change of displacement is accomplished by having the eccentric
cam (2) free to radial move: the radial movement of the eccentric cam is controlled by means of hydraulic
cylinders (12) located inside the shaft. It is possible to choose maximum and minimum displacement values
within the maximum range allowed by means of spacers. The piloting cylinders are operated by means of a
rotating intake (9). Motor displacement can be changed during the motor operation, from maximum
displacement to minimum displacement, as well as from minimum displacement to maximum displacement
with no need to stop the motor operation.
