INSTRUCTIONS FOR USE
04/2015 NP-DK50 F-11_04-2015
-32-
13.6 Replacement of a filter in sludge matrix of the automatic condensate trap.
Prior to the intervention in the device it is necessary to reduce
pressure of air in the air chamber to zero and disconnect the
device from electric mains.
Fig.11
Release the hose of sludge matrix (3) from socket threaded joint
of a timer (4).
Unscrew the sludge matrix (2).
Replace filter (1), screw the sludge matrix on.
Fix the hose (3) into the socked threaded joint of a timer (4).
14. STORAGE
If the compressor will not be used for a prolonged time period, drain any condensate from the air tank. Then turn
on the compressor for 10 minutes, keeping the drain valve open (1) (Fig.7). Switch off the compressor by switch
(3) at pressure switch (2) (Fig.6), close the drain valve and disconnect the appliance from the mains.
15. DISPOSING OF THE APPLIANCE
• Disconnect the appliance from the mains.
• Release air pressure in the pressure tank by opening the drain valve (1) (Fig.7).
• The components of the product are non-toxic.
• Dispose of the appliance following all environmental regulations.
16. REPAIR SERVICE
Guaranteed and post-guarantee repairs must be done by the manufacturer, its authorized representative, or service
personnel approved by the supplier.
The manufacturer reserves the right to make changes to the appliance without notice. Any changes made will not
affect the functional properties of the appliance.
17. SOLVING PROBLEMS
Caution! Before proceeding, depressurize the air tank to zero and disconnect the appliance
from the mains.
Troubleshooting can be performed only by qualified personnel.
FAILURE POSSIBLE CAUSE REMEDY
Compressor does not start No voltage in pressure switch Check voltage in socket
Check fuse – replace faulty one
Loosen terminal – tighten it
Check power cord – replace faulty one
Disconnected winding of motor, damaged thermal
protection
Faulty capacitor
Seizure of piston or another rotary part
Pressure switch does not switch on
Replace motor or re-wind it
Replace capacitor
Replace damaged parts
Check the function of pressure switch
Compressor often
switches on
Air leak in pneumatic distribution system
Leaking check valve
Greater volume of condensed liquid in pressure
vessel
Check pneumatic distribution system – seal loose
joint
Clean valve, replace seals, replace valve
Drain condensed liquid
Prolonged running of
compressor
Air leak in pneumatic distribution system
Worn piston ring
Contaminated input filter
Defective solenoid valve
Check pneumatic distribution system – seal loose
joint
Replace worn piston ring
Replace contaminated filter with the new one
Repair or change the valve
Compressor is noisy
(knocking, metal noises)
Damaged bearing of piston, piston rod, motor
bearing
Loose or cracked spring
Replace damaged bearing
Replace damaged spring
Fig. 11
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