Finish 270 Finish 250 - WAGNER-Group

Finish 270 / 250GBrepairs at the unit10.10 REmEDy IN CASE Of fAulTSt ype of malfunC tion what else? possible Cause measures for eliminating the malfunCtionUnit does not startUnit does not suck inUnit does not generatepressureMotor switch can notswitched onAir bubbles exit fromthe return hoseAir bubbles do not exitat the return hoseNo voltage appliedUnit fuse has triggeredUnit is sucking in outsideairInlet valve cloggedInlet/outlet valve soiled/ foreign bodies (e.g.threads) drawn in / wornPressure control valve turneddown completelyCheck voltage supplyLet the motor cool downCheck: 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)Press 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