SIGN RACER 1600 LED, Руководство по эксплуатации

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When accomplished troubleshooting the above two malfunctions, check and see if the setting
value (Lo-­‐2) of the indicator is correct.
Lo-­‐1:-­‐4.5 —— negative pressure limit protection
H1-­‐1:20 —— positive pressure limit protection
Lo-­‐2:-­‐0.8 —— lower limit for activating backup air pump
H1-­‐2:0.5 —— higher limit for activating backup air pump
3. Ink line malfunction
3.1 Ink Overflow
(abnormality of ink in the air tube)
Causes
①
Malfunctioning level sensor
②
Improper operation when disconnecting the ink tube. (Without the valve turned off or the
pressure adjusted to -­‐1.0kPa)
③
Ink filter blockage
Troubleshooting
①
Shutdown the spray and turn off all the valves, adjust the pressure to -­‐1.0kPa, and then turn
off the scram stop.
②
Uncap the tube at the bottom of the air tank and drain the tank.
③
Open the cover of the air tank and clean it with some flushing.
④
Replace the contaminated tubes. Be careful with the blade using when disconnecting the
tubes so as not to damage the nipple of the tank. Or this might lead to air leakage which usually
causes the pressure fluctuation.
⑤
Activate the printer and turn on the valves of the subtanks that withdraw. Drain the
excessive ink of the subtank till the liquid level comes back to the standard. The withdrawal would
probably occur once more if without these operations.
⑥
Adjust the pressure to the normal value and then turn on all the valves.
3.2 Ink leakage of the nozzles
Causes
①
The pressure is excessively higher than normal value.
Troubleshooting
①
Shutdown the spray and turn off the valves and the scram stop.
②
Check and see if there is any leakage or fallen off of the tubes.
③
Check and see whether the air pump has exceeded its service life. Replace it if so.