Elmo Rietschle V-VCE 25/40 - Manual (Page 28)

28 | 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 7.2.2
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 7.2.2
The oil remover unit or oil sep-
arator elements are dirty. Replace the oil remover unit
or the oil separator elements Section 7.2.3
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 oil remover unit or oil
separator elements are not in-
serted correctly or the O rings
are missing. Check that it is correctly
seated Section 7.2.3
Unsuitable oil is being used Use suitable types Section 7.2.2
The oil remover unit or oil sep-
arator elements are dirty. Replace the oil remover unit
or the oil separator elements Section 7.2.3
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