WARNING
Risk of burns on hot surfaces
During pump operation, exposed surfaces reach high temperatures. There is a risk of burning.
► Allow the pump to cool down before carrying out any work.
► Wear protective gloves (in accordance with EN 420).
NOTICE
Damage caused by water hammer
The sudden ingress of condensate can cause water hammer, as the pump cannot pump the addition-
ally formed steam down quickly enough. Water hammer destroys the pump.
► Install a capacitor between the vacuum system and pump.
– This intercepts the fluid upstream of the pump.
NOTICE
Damage caused by fluids and dust
Fluids and dust damage diaphragms and valves.
► Prevent ingress of particles and dusts to the pump.
► Install a suitable filter upstream of the pump if necessary.
► Avoid condensation in the pump and water hammer.
► Observe the intended use.
NOTICE
Damage caused by silencer contamination
After a long period of operation at high intake pressures or with dust-laden gases, the silencer can
become congested. If the silencer becomes contaminated, an internal overpressure builds that dam-
ages bearings, diaphragms, and valves.
► Replace a contaminated silencer.
► Make sure that the exhaust line is unobstructed.
► Ideally, use a hose nozzle as an outlet.
Risks during maintenance
CAUTION
Risk of injury on hot surfaces, due to the vacuum or on sharp edges due to improperly per-
formed maintenance work
Improper handling of the pump before maintenance work causes hazardous situations involving a risk
of injury. There is a risk of burning injuries on hot surfaces. There is a risk of injury due to the vacuum
when switching off. There is a risk of cutting injuries due to the access to sharp-edged, rotating parts
when removing the pump.
► Ensure that the pump has come to a complete standstill before performing any work on the
pump.
► Switch off the pump correctly.
► Vent the pump to atmospheric pressure.
► Secure the pump against being switched back on.
► Allow the pump to cool down.
► Seal open connections with the original protective covers immediately after removing the pump.
NOTICE
Damage caused by pointed or sharp-edged tools
Sharp-edged tools damage pump parts during maintenance.
► Never disconnect pump parts such as diaphragm heads using pointed or sharp-edged tools.
► Never use pointed or sharp-edged tools to lift diaphragms.
► If necessary, use a rubber mallet to loosen parts.
Safety
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