EKOM 447000001-066, User Manual

Page: 60 / 72

PRODUCT MAINTENANCE
NP-DK50-9x4VRTM-AD-EN-5_04-2022 60 04/2022
18.19.
Replacement of the dryer’s silencer
Working with pressurised
pneumatic components poses a
risk of injury.
Operating the equipment without
silencers generates high levels of
noise. Only replace silencers
when the equipment is shut
down.
•
Unscrew the silencer (1).
•
Install a new silencer.
Fig. 39: Replacement of the silencer
18.20. Inspecting the cooler and fan
The equipment, in particular the compressor
fan, cooler fan, and the cooler, must be kept
clean to ensure efficient drying. Remove dust
from the surface of the cooling fins and fans
by vacuuming or blowing down with
compressed air.
18.21. Replacement of solenoid valves
Risk of electric shock.
Shut off the compressed air
source, turn off the equipment
and disconnect it from the mains
before working on the equipment.
Working with pressurised
pneumatic components poses a
risk of injury.
Disconnect the equipment from
the mains and vent the pressure
in
the equipment and the
pneumatic system to zero before
working on the equipment.
In normal operation, the solenoid valves in
the bottom of the dryer must be replaced at
the defined interval.
•
Turn off the compressor.
•
Check the pressure in the dryer.
•
If the dryer chambers are under
pressure, proceed in accordance with
Chapter 17.15.
•
Unscrew the 1 screw from the valve
connector (1).
•
Disconnect the valve connector (2).
•
Unscrew the 4 screws (3).
•
Remove the solenoid valve (4).
•
Remove the valve seal (4-1) from the
body.
•
Physically clean the valve seat
surface to remove any impurities.
•
Physically clean the 16 screws to
remove the thread locking adhesive.
•
Install the solenoid valve (Fig. 41).