Finish 270 Finish 250 - Wagner

Finish 270 / 250GBRepairs at the unit10.10 Remedy in case of faultsType of malfunction What else? Possible cause Measures for eliminating the malfunctionUnit does not start Motor switch can not No voltage applied Check voltage supplyswitched onUnit fuse has triggered Let the motor cool downUnit does not suck in Air bubbles exit fromthe return hoseUnit is sucking in outsideairCheck: Suction system tightened properly?Cleaning connection at rigid suction tubescrewed tight and not leaking? Inlet valvebutton leaky? -> Replace wiper and O-ring (->refer to Section 10.1)Unit does not generatepressureAir bubbles do not exitat the return hoseInlet valve cloggedInlet/outlet valve soiled/ foreign bodies (e.g.threads) drawn in / wornPressure control valve turneddown completelyPress the inlet valve button until the stop isreached several times by handRemove the valves and clean then (-> refer toSection Pkt.10.2/10.3) / replace worn partsTurn the pressure control valve to the right untilthe stop is reachedUnit has sucked in Air in the oil circuit Bleed the oil circuit in the unit by turning thepressure control valve completely to the left(until overturning) and let it run approx. 2 – 3min. Then turn the pressure control valve tothe right and set the spraying pressure (repeatprocess several times, if necessary). Process isassisted by positioning the unit vertically.Unit reached pressure,but the pressurecollapses, also at thepressure gage, duringspraying.Unit reached pressure,but the pressure collapsesduring spraying.pressure gage stillshows high pressureUnit does not generatethe max. pressure possible.Paint neverthelessexits at the returnhose.Suction filter cloggedPaint cannot be worked inthis state. Due to its propertiesthe paint clogs thevalves (inlet valve) and thedelivery rate is too low.Clogged filter do not letenough paint passCheck the suction filter. If necessary, clean/replaceDilute the paintCheck/clean the (high-pressure filter) gun filterTip clogged Clean the tip (-> refer to Section 10.1)Relief valve defectiveClean or replace the relief valve (-> refer toSection 10.5)49