MAINTENANCE
20 NP-DK50 DE-18_02-2019
Checking tightness of joints and inspecting the equipment
Test for leakage:
Disconnect the outlet hose from the quick coupling OUT (3); compressed
air consumption will stop.
Pressurize the air tank by releasing some air via a connected device.
With the compressor off, wait at least 10 minutes before checking the
pressure level.
If the pressure has dropped, use soapy water to find the leaky joint. Start
with the joints outside the case, and then test the ones inside the case
after removing the covers.
Tighten or re-seal joints as necessary.
Inspect the equipment:
Check the status of the compressor motor for balanced operation or noise.
Check the condition of the hangers above the pump.
Check fan functionality.
Check the condition of filters (14,16). With regular operation, condensate
drains automatically. Verify this function by comparing the level of
condensate in the tank to the scale line indicating the maximum level. If
the level of condensate is above the scale line, replace the faulty parts.
Examine the pump for:
- Defects in the crankcase
- Free movement of the crank shaft
If necessary, replace any faulty parts.
Replacing filter elements
Before beginning, evacuate all compressed air from the tank, reducing
the tank pressure to zero and disconnect the equipment from the power
mains.
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