Installation and Operating Manual
I/H Converter DSG-B03212
DSG-B07212
2019 / 02
J.M. Voith SE & Co.
KG │ Division Digital Ventures
Page: 14 / 22
918 3626018861 en
D – 74564 Crailsheim
Version: 4.1
5.2
Hydraulic connection
When assembling the pipes, ensure that they are not fastened to any moving equipment,
but rather to fixed structures free from vibration.
Alterations in length caused by temperature variations must not apply constraining forces
to the I/H converter.
Fixing and hydraulic connection to a connecting flange is made via the hydraulic part.
O-rings are used for sealing. The customer's connecting surface must correspond to Ra
≤ 1.6 µm and Rmax ≤ 6.3 µm.
To guarantee proper functioning of the I/H converter, external pressure variations must
not affect tank return line T2. In practice, the tank return lines T1 and T2 can be brought
together, provided the joint pipe is laid to the tank in descending position and with a
nominal width ≥ 20 mm.
Residual oil (up to 0.2 l) may leak when removing the screw plugs. Collect the oil in a
suitable container and dispose of it properly.
Do not use fibrous or hardening sealing compounds, such as hemp or mastic, for
sealing the connections and pipe unions.
Prior to installation, clean pipes from dirt, cinder, sand, chips, etc.
Pickle welded piped. Clean and flush carefully the pipes and the whole hydraulic system
before installing the I/H converter.
A flushing plate can be supplied for the flushing process. See Chapter 10, Annex.
An adapter can be supplied to connect the I/H converter to the piping system. See
Chapter 10, Annex.
5.3
Electrical connection
Only a certified electrician with experience and knowledge in the field of explosion
protection is allowed to connect the servomotor electrically in accordance with the
electro-technical rules and legal provisions of the country of manufacture.
Signal and supply lines provided by the customer to the I/H converter need to be
screened and laid separately from each other.
When connecting the customer's lines, please avoid parallel running of way valve lines
with the lines of the current converter assemblies.
Poor connecting points do not guarantee a reliable operation of the I/H converter.
