Drive with TRASMITAL MG orbital hydraulic motor
In
addition to the instructions governing installation
of
the gear unit, the foliowing instructions should also be
observed when installing a hydraulic motor.
a) Connecting to the hydraulic circuit
The motor can be installed
on
both a closed and open loop circuit.
In
the case
of
an
open circuit installation, the solenoid valve
or
control valve may be
of
either the closed cen-
tre or open type.
The circuit line corresponding to the hydraulic motor delivery port must always be equipped with a pressure
relief valve calibrated to a pressure no greater than the motor's pmax. Refer to the hydraulic circuit diagrams
below.
Closed loop circuit
Open loop circuit
RV
RV
RV = pressure relief valves calibrated to pRV < pmax.
Closed centre control valve
I T
I
""'
.
.
,o;,
B
Open centre control valve
lf
this
is
not possible because the circuit must also actuate ether equipment at a higher pressure,
or
the con-
trol valve is
of
the closed centre type and the motor drives components with high inertia, auxiliary pressure
relief valves must be installed as close as possible to the motor.
T
A
'O'
...
, ..
4
B
RV
RV = pressure relief valves calibrated to pRV < pmax.
@Bonfiglioli
Trasmital
25
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