INSTALLATION & MAINTENACE MANUAL
RCOe2100/03.06
33
In order to avoid the case emptying, the flushing return line to tank must be positioned
by following the same instructions provided for the drain line (pls. refer to “Drain Line
Connection”).
Taking the flushing oil from the motor return line allows the simplification of the hydraulic system; however
it is possible to use an external flushing flow rate source, by means of a dedicated pump.
In the table here below, it is possible to find the recommended flushing flow rate (l/min) according to the
motor size.
FLUSHING FLOW RATE SELECTION
DISPLACEMENT
(cm
3
)
MOTOR TYPE
CLASS
FROM
TO
FLOW RATE
(litre / minute)
MR
A
33
57
5
B
73
110
5
MR / MRE
C
125
190
6
MR / MRE / MRA
MRD / MRDE / MRDA
D
200
400
6
MR / MRE / MRA
MRD / MRDE / MRDA
MRV / MRVE / MRVA
E
350
500
8
F
600
800
10
G
1100
1600
10
H
1600
2100
15
I
2400
3500
20
L
3600
5400
20
MR / MRE / MRA
MRD / MRDE / MRDA
MRV / MRVE / MRVA
M
6500
8200
20
MRT / MRTE / MRTF /
MRTA
P
7100
10800
MRT / MRTE / MRTF
Q
14000
23000
23
In order to get the correct flushing flow rate, according to the return line pressure, a drilled grain with the
appropriate diameter holes dimension has to be used. The holes diameter can be chosen by using the
diagrams here below, in accordance to the pressure difference upstream and downstream of the grain; it
has to be taken into account that the maximum case pressure cannot exceed 5 bars if the motor is equipped
with a standard shaft seal.
