Figure 20. 1-speed motor.
Figure 21. Hydraulic circuit, 1-speed motor.
Multi-speed motors
BB motors
BBC motors
40DVVVY240
CDV2E1Y0AA
40DVVVY340
C5V7E1Y0AA
2-speed BB motors have preferred rotational direction at partial displacement.
Operating the BB motor at partial displacement for an extended time in the non-
preferred direction will lead into motor failure.
2- and 4-speed BBC motors do not have preferred rotational direction and can be
operated at maximum rated power in both directions.
In 2-speed BB and standard 2-speed BBC motors, a 15-30 bar control pressure to Y
port is required to activate 2-speed (partial displacement of a 2-speed motor).
Depressurizing the Y port will return the motor to full displacement. Do not use work/
high pressure in Y port to control a standard 2-speed BB or BBC motor.
BBC 05 4-speed motors have high pressure shift ports (Y1 and Y2). To shift such
motor, the highest available system pressure has to be applied to the shift port.
Typically this highest system pressure is taken from motor work lines A and B by a
shuttle valve.
3.10
Motor Description
Product Manual
29
