TROUBLESHOOTING
NP-DK50 B-A-1_02-2021
26
02/2021
TROUBLESHOOTING
Risk of electric shock.
Before interfering with the equipment, first disconnect it from the mains (remove
the power socket).
Working with pressurised pneumatic components poses a risk of injury.
Before interfering with the equipment, vent the air tank and the compressed air
system to zero pressure.
Troubleshooting may only be performed by a qualified service technician.
Malfunction
Possible cause
Solution
Compressor does
not switch on
No voltage in the pressure switch
Check voltage in socket
Check circuit breaker switch
–
switch to position switched-
on „I“
Loose conductor from terminal -
repair
Check electrical cord
– replace
defective cord
Motor winding failure, damaged
thermal protection
Replace motor or windings
Capacitor failure
Replace capacitor
Seized piston or other rotating part
Replace damaged components
Pressure switch does not switch
Check function of pressure switch
Cabinet switch
does not switch off
the compressor
There is a compressor in the cabinet
that previously worked separately
(there is a jumper in the compressor
terminal strip)
Remove the jumper from the
terminal strip, see chap. 17.10
Compressor often
switches on
Air leakage in pneumatic system
Check pneumatic system
– seal
loose connections
Non-return valve (SV) leakage
Clean non-return valve, replace
seals, replace non-return valve
Large volume of condensed liquid in
pressure tank
Drain condensed liquid
Low compressor capacity
Check time of filling the air tank
Low pressure in
the air tank
(compressor
running constantly)
High air consumption of supplied
equipment
Decrease air consumption
Use compressor with higher
capacity
Leakage in pneumatic system
Check pneumatic system
– seal
loose connections
Low capacity of the pump
Clean / replace the pump
Pump failure
Clean / replace the pump
Dryer failure
Replace dryer
Prolonged
operation of the
Air leakage in pneumatic system
Check pneumatic system
– seal
loose connection
Summary of Contents for DK50 B
Page 1: ...DK50 B User manual Instrukcja obs ugi N vod na pou itie...
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Page 4: ...CONTENTS 4 28 SPIS TRE CI 51 OBSAH 74...
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Page 31: ...02 2021 31 NP DK50 B A 1_02 2021 4 4 1 4 2 4 3 4 4...
Page 32: ...NP DK50 B A 1_02 2021 32 02 2021 5 5 1 25 55 C 24 70 C 90...
Page 34: ...NP DK50 B A 1_02 2021 34 02 2021 1 DK50 B 1 A a 2 3 4 5 6 7 8 9...
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Page 44: ...NP DK50 B A 1_02 2021 44 02 2021 13 16 2 a e a 40 C 16 3 B2 40 C EV1 EV2 40 C a 16 4...
Page 45: ...02 2021 45 NP DK50 B A 1_02 2021 16 5 1 1 6 DK50 BS 16 6 Sicherheitsventil berpr fen 2 1 2 7...
Page 47: ...02 2021 47 NP DK50 B A 1_02 2021 9 B 9 230 V 16 10 9...
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