DK50
NP-DK50 simple s DE-4_06-2020 - 28 - 06/2020
18.7. Stabilizing the compressor before shipping
Before shipping, the compressor must be
stabilized to prevent movement. Prior to fixing it is
necessary to disassemble housing using 4x
screw M5 at side walls of the product. The air
pump must be fixed to the base using four
original screws M6 (see picture) and plastic cover
assembl.
TROUBLESHOOTING
Troubleshooting can be performed only by qualified personnel.
Compressor does
not start
No voltage in pressure switch
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 is not switching on,
switch switched to “0“ position
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 non-return 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 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
Before proceeding, depressurize the air tank to zero and disconnect the device
from the mains.