Maintenance | 7
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Maintenance
WARNING
Machines contaminated with hazardous material.
Risk of poisoning!
Risk of infection!
If the machine is contaminated with hazardous material:
• Wear appropriate personal protective equipment.
CAUTION
Hot surface.
Risk of burns!
• Prior to any action requiring touching the machine, let the machine cool down first.
• Shut down the machine and lock against inadvertent start up.
• Vent the connected lines to atmospheric pressure.
• Disconnect all connections.
7.1 Maintenance Schedule
The maintenance intervals depend very much on the individual operating conditions. The
intervals given below are desired to be considered as starting values which should be
shortened or extended as appropriate. Particularly heavy duty operation, such as high
dust loads in the environment or in the process gas, other contamination or ingress of
process material, can make it necessary to shorten the maintenance intervals significant-
ly.
Interval
Maintenance work
Monthly
• Clean the machine from dust and dirt.
In case of an inlet filter being installed:
• Check the inlet filter cartridge, replace if neces-
sary.
Every 8000 hours, at the latest
once a year
• Check the vanes (VA) and change them if necessary.
• Change the internal filters (IIF / IDF)
• Change the felt washer (FW) of the discharge valve
(DV) (only on SV series)
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