DK50
NP-DK50 simple s DE-2_04-2015
- 12 -
4/2015
MAINTENANCE
15. MAINTENANCE SCHEDULE
NOTICE
The operating entity is obliged to ensure that all tests of the equipment are carried out repeatedly at
least once within every 24 months (EN 62353) or in intervals as specified by the applicable national
legal regulations. A report must be prepared on the results of the tests (e.g.: according to EN 62353,
Annex G), including the measurement methods used.
Maintenance that must be
performed
Chapter
Time interval
Performed by
Release condensate:
From air tank
At high air humidity
14.1
1x week
1x day
personnel
personnel
Safety valve check
14.2
1 x year
qualified expert
Inspect the appliance
14.3
after two years
qualified expert
Replacement of filters of air pump
14.5
1 x year
qualified expert
Replace piston complete
Service
documentation
8000 hours
qualified expert
P
erform “Repeated Test”
according to EN 62353
13
1 x 2 years
qualified expert
16. MAINTENANCE
Repair work beyond normal maintenance can be performed only by qualified personnel or
the manufacturer’s representative.
Use only spareparts and accessories approved by the manufacturer.
Prior to any maintenance or repair work, switch off the compressor and disconnect it from
the mains (pull out the mains plug).
Cover removal
- Unscrew the 4 screws from the front cover
- Disconnect the grounding wire
- Remove the front cover
- Reassemble using the opposite order
TO ENSURE THAT THE COMPRESSOR WORKS CORRECTLY, PERFORM THE FOLLOWING
MAINTENANCE TASKS AT REGULAR INTERVALS (CHAPTER 13).:
16.1. Condensation drain valve
(Fig.1)
From air tank
During regular use, release condensation from the pressure tank. Switch off the compressor at the mains.
Reduce air pressure in the appliance to max. 1 bar by releasing air via a connected device. Place the vessel
under release valve and open the drain valve (8). Wait until condensation is fully drained from the pressure
tank. Close drain valve (8).
16.2. Safety valve check
(Fig.7)
When the compressor is operated for the first time, make sure that
the safety valve is working properly. Let the safety valve blow out
for only a few seconds.
The safety valve must never be used for depressurizing the air tank. It could damage the
safety valve. The valve is set to the maximum permitted pressure by the manufacturer.
Adjustments are not permitted.
Warning! Compressed air can be dangerous. Wear eye protection when blowing air out.
Fig.7
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