1
Fig. 24:
Changing the gas ballast filter
1 Gas ballast filter
Removing and changing the gas ballast filter
1. Dismantle the gas ballast filter.
2. Check the gas ballast filter and replace the gas ballast filter in the event of severe contamination
or damage.
7.7 Cleaning the oil/air heat exchanger
WARNING
Health hazard through poisoning from toxic contaminated components or devices
Toxic process media result in contamination of devices or parts of them. During maintenance work,
there is a risk to health from contact with these poisonous substances. Illegal disposal of toxic sub-
stances causes environmental damage.
► Take suitable safety precautions and prevent health hazards or environmental pollution by toxic
process media.
► Decontaminate affected parts before carrying out maintenance work.
► Wear protective equipment.
Prerequisites
● Oil/air heat exchanger visibly contaminated
● Vacuum pump switched off
● Vacuum pump vented to atmospheric pressure
● Vacuum pump cooled
● Operating fluid drained
Consumable
● Compressed air
Required tool
● Hexagonal wrench,
WAF 13
● Torque wrench,
WAF 13
Required aids
● Collection receptacle
Maintenance
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