Installation and Operating Manual
I/H Converter DSG-B03212
DSG-B07212
2019 / 02
J.M. Voith SE & Co.
KG │ Division Digital Ventures
Page: 18 / 22
918 3626018861 en
D – 74564 Crailsheim
Version: 4.1
7.3
Troubleshooting
Malfunction
Possible cause(s)
Remedy
Pressure variations
Supply pressure too low
Check supply pressure
Air pockets in
I/H converter
During first commissioning, air pockets in the control
magnet may cause pressure variations. De-aerate the
I/H converter according to the information provided in
Chapter 6.1.
Impurities in
hydraulic component
Contaminated operating medium causes increased
friction at the control piston resulting in hysteresis and
pressure variations.
Open hydraulic component and clean inner parts. If
necessary, consult
J.M. Voith SE & Co. KG │ Division
Digital Ventures.
Pressure variations
in tank return line T2
Pressure variations are not allowed in tank return line
T2. If other consumers are connected to this line,
ensure that these do not generate any pressure in the
line. If necessary, consult
J.M. Voith SE & Co. KG │
Division Digital Ventures.
Output pressure does
not follow setpoint w:
PA = 0 bar or
PA ~ P
Blocking of control piston
The control piston may be blocked by a particle. The
blocking may connect the outlet with T1 or P, thus the
output pressure PA equals 0 bar or corresponds to
the input pressure. Open hydraulic component and
clean inner parts. If necessary, consult J.M. Voith SE
& Co. KG │ Division Digital Ventures.
Defect in the control magnet
VRM
The control magnet is defective if the control piston
can be moved and the output pressure can be
adjusted with the manual operation knob (see
Chapter 7.1). Replace the I/H converter.
Please kindly contact
J.M. Voith SE & Co. KG │ Division Digital Ventures
if any type of malfunctioning
occurs which is not included in this table.
Prior to starting work, make sure that the I/H converter was installed electrically and
hydraulically according to the information provided in Chapter 5 and properly
commissioned according to the information provided in Chapter 6.
