Operating instructions

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Malfunctions: Causes and elimination
Fault Cause Troubleshooting Important
Excess pressure or
vacuum not achieved
Machine or system leaking Check the pipework and
screw connections for leaks
and to ensure that they are
fi rmly seated.
Section 7.2
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 suction fi lter cartridges
are dirty
Clean or replace the fi lter
cartridges
Section 7.2.2
Section 7.4
The relief valves are dirty so
that the permissible pressure
and/or vacuum values have
been exceeded.
Clean or replace the regulat-
ing valves
Section 7.2
Section 7.4
The machine makes
an abnormal noise
Deposits on the rotary piston Clean the working space and
the rotary piston
Elmo Rietschle
Service
A relief valve is vibrating Replace the valve Section 7.4
Please contact Elmo Rietschle Service for other malfunctions or those that cannot be eliminated.