Elmo Rietschle V-VC 400/500/700/900/1100/1300 - Manual (Page 29)

29 www.gd-elmorietschle.com © Gardner Denver Schopfheim GmbH, Gardner Denver Deutschland GmbH |
Malfunctions: Causes and elimination
Fault Cause Troubleshooting Important
Final pressure (max.
vacuum) is not
reached Leak on the suction side of
the vacuum pump or in the
system Check the pipework and
screw connections for leaks
and to ensure that they are
fi rmly seated. Section 7.2
Incorrect oil viscosity The oil viscosity must comply
with ISO VG 100 as per DIN
51519 Section 7.2.3
The adjustment bolt (X) is not
set correctly. Set the operating range cor-
rectly. Section 6.1.2
Machine gets too hot Ambient or intake temperature
is too high Ensure it is being used prop-
erly Section 2.3
Cooling air supply is ob-
structed Check environmental condi-
tions Section 5.1
Clean ventilation slots Section 7.2
The lubricating oil is too vis-
cous The oil viscosity must comply
with ISO VG 100 as per DIN
51519 Section 7.2.3
The air oil removers are dirty. Change the oil separator ele-
ments Section 7.2.4
The back pressure is too high
when the exhaust air is being
discharged. Check the hose or the pipe Section 5.3
Exhaust air contains
visible oil mist The air oil remover devices
are not inserted correctly or
the O rings are missing. Check that it is correctly
seated Section 7.2.4
Unsuitable oil is being used Use suitable types Section 7.2.3
The air oil removers are dirty. Change the oil separator ele-
ments Section 7.2.4
The back pressure is too high
when the exhaust air is being
discharged. Check the hose or the pipe Section 5.3
Ambient or intake temperature
is too high Ensure it is being used prop-
erly Section 2.3
Cooling air supply is ob-
structed Check environmental condi-
tions Section 5.1
Clean ventilation slots Section 7.2