EKOM DK50 3x4VR/M, User Manual

Page: 48 / 64

PRODUCT MAINTENANCE
NP-DK50 3x4VR_M-AD-A-EN-3_06-2022 48 06/2022
One air pump must be
operating, shut off the
remaining air pumps at the
current protection device (25) in
the switchboard. No air may
leak through the non-return
valves.
Check for proper operation of the non-return
valve (31) on the air tank by disconnecting the
pressure hose from the valve
Inspect the non-return valve
once the air tank is pressurised
and the compressor is off. No
air may leak.
18.9. Check operation of solenoid valves
Valve functionality is checked us
ing the “Magnetic
indicator” as follows:

Place it on the valve coil.

if the motors are active, the indicator must turn

If not, the indicator does not turn.
Fig. 20: Solenoid valve M10
18.10. Check the switching function of
thermostat B2
Check of operation
– if the motors are off and
the ambient temperature around B2 is higher
than 40°C, then fan motors E1-E6 must run to
cool the motors
18.11. Check the function of pressure
sensor B1
Functionality is checked visually using the
TDE screen, which shows the compressed air
value. Changes in air usage must be reflected
in pressure changes on the display.
18.12. Cleaning and disinfection of the
exterior surfaces of the product
Clean and disinfect the exterior surfaces with
neutral cleaning products.
Use of aggressive detergents
and disinfectants containing
alcohol and chlorides can lead
to
surface damage and
discolouration.
AD dryer maintenance
18.13. Venting pressure from the dryer
The equipment is designed to permit the safe
venting of pressure within 10 seconds after
the compressor is shut off.
If pressure is not automatically vented from
the dryer, then the pressure may be vented
manually.
Venting compressed air poses
an injury hazard
Wearing hearing protection is
recommended given the noise
generated
by the venting
process.
Shut off the compressed air
source before venting pressure
from the equipment.
Venting pressure using the display screen
Press ESC+▼ in the display screen to vent
pressure from the equipment.