13
Radial Winch
70.3 ST E/HY
Installation and Maintenance Manual
Hydraulic connections diagram
The hydraulic motor must be connected to a hydraulic system using two high-pressure tubes
which serve for input or output according to the direction in which the motor will be run. The motor
also needs a third connection with a low pressure tube for drainage, so that excess oil can return
to the main tank to avoid shortening the life of the motor. This motor uses an open centre valve.
Refer to the following chart for the hydraulic system:
For the hydraulic motor:
Input/output pipe thread: G 1/2 – depth 15 mm
Drainage pipe thread: G 1/4 – depth 12 mm
WARNING!
Refer to the Hydraulic Power Unit and Control Box manual.
WARNING!
Refer to the Digital System Switch manual.
