92
OPERATING MANUAL
VERSION 05/2017
ORDER NUMBER DOC 2357061
Malfunction
Remedy
The 2K product does
not react correctly
− Check the mixing ratio value.
− Check the suction lines (leakage).
− Check the flow meter with a calibration process.
− Check pressure differences. see Chapter
− Check AIS function (see software documentation, "Diagnosis" chapter).
− Without AIS: Optimize the switching behavior of the hardener dosing valve in
spraying mode (0.5 - 3 seconds) via the differential pressure of B to A or via the
stroke setting of the valve.
− Check the lacquer specifications.
Flow rate is too low
− Check the mixing tube and feed hoses.
− Check the guns and the gun filter.
− Clean the lines by flushing or cleaning manually.
− Increase the pressure of the supply pumps.
Product valves:
− See product valve's operating manual.
− Product- or air
emission from
leakage hole
− No product
transportation
− Contamination
Interruption of circuit
over a longer period of
time
− With external compressed air, manually open the flushing valve and distributor
valve (option).
A fuse is defective.
LED lights up
− Check on the basis of the control cabinet diagram whether a cable is damaged.
− Replace the fuse.
The system supplies
product, but the spray
pattern is inadequate
− Ensure that the supply pressures are constant.
− Adjust the A/B/C/D pressure ratio. see Chapter
− Increase the pressure of the supply pumps.
− AirCoat: Set the atomizing air correctly.
− Check product filter on pumps, 2K systems and guns.
− Replace gun nozzle with a more suitable nozzle (Airless and AirCoat).
− Check the viscosity of the product and dilute it in accordance with the lacquer
manufacturer's instructions. If necessary correct the mixing ratio.
− AirCoat: Ensure that only dry, clean atomizing air is used in the spray gun.
Flow rate is too high
− Replace gun nozzle (Airless and AirCoat).
− Check the lines for leakage.
− Set the opening of the gun needle correctly (air guns only).
− Decrease the pressure of the supply pumps.
