8. Attach the air pipe to the cover 14 with a new, self-locking nut.
9. Replace and tighten all fittings.
➤ Dispose of parts and materials contaminated with oil in accordance with environmental
protection regulations.
Start the machine and carry out a test run
1. Close all access doors; replace and secure all removable panels.
2. Open the user's shut-off valve between the machine and the compressed air system.
3. Switch on the power supply and reset the maintenance interval counter.
4. Stop the machine after 10 minutes and visually check for leaks.
10.18 Refrigeration Dryer Maintenance
The refrigeration circuit is permanently sealed and needs no maintenance. Repairs may only be
carried out by certified personnel.
Material Compressed air for blowing out
Cleaning rags
Vacuum cleaner
Spare parts (as required)
Fig. 38 Refrigeration dryer
1 Access panel
4 Refrigerant condenser
5 Screws
➤ Check and clean the refrigerant condenser and condensate drain regularly as described below.
10.18.1 Cleaning the refrigerant condenser
Precondition The power supply disconnecting device is switched off.
The disconnecting device is locked in the off position.
A check has been made that no voltage is present.
1. Undo the securing screws 5 and remove the panel 1 .
10 Maintenance
10.18 Refrigeration Dryer Maintenance
9_5721 06 USE
Service Manual Screw Compressor
ASD T Tri-Voltage
81
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