EKOM 447000001-066, User Manual

Page: 55 / 72

PRODUCT MAINTENANCE
04/2022 55 NP-DK50-9x4VRTM-AD-EN-5_04-2022
Fig. 31: Compressor inlet filter cleaning/replacement
18.9. Compressor performance check
•
Turn off the compressor using the
STOP button.
•
Vent the air pressure in the air tank to
zero.
•
Turn on the compressor using the
START button.
•
Measure the time to fill the air tank
from 0 to 7 bar.
•
The measured value must be less
than the data provided in the
“Technical Data” table.
18.10. Check of non-return valve
operation
Compressed air line:
Check for the proper operation of all non-
return valves in the compressed air line and
the disconnection of pressure hoses from air
pumps.
One air pump must be running at
all times, while the others may be
shut
off using the current
protection device in the
switchboard. No compressed air
may leak from the non-return
valves.
Air tank:
Check for proper operation of the non-return
valve on the air tank by disconnecting the
pressure hose from the valve.
Check the non-return valve
operation once the air tank has
come up to pressure and with the
compressor off. No compressed
air may leak.