APV W+10/8 - Checking the Pump; Starting the Pump; Flushing Liquid

GB
Form no.: L453147GB– revision 06/2013
6. Start-up and operation
6.2 Checking the pump
Tocheckthatthepumpisworkingsatisfactorily,pourwaterinto
thepumpandstartitmomentarily.Checkthedirectionofrotation.
Fig.6.Listenforanyunusualnoises.
Inpumpswithwater-ushedorsteam-ushedshaftseals,theseal
chambermustbelledwithwater/steam.
Caution! Neverallowthepumptorunwithoutliquid,asthis
willruintheshaftseal.
6.3 Starting the pump
Checkthefollowingbeforestartingthepump:
- Thattheshaftguardhasbeenttedproperly.
- Thatthereisunobstructedaccessforliquidandthatthepumpis
primed.
- Thatthevalveonthedischargesideisclosed.
Thevalveonthedischargesideisclosedduringstart-uptoprevent
themotorfromoverloading,butshouldbeopenedagainassoonas
the pump has been started.
Note! Thepumpshouldnotbeleftrunningtoolongwithoutpumping
(typically15minutesifthepumpedliquidisnot
hot),becauseitwillgetwarmandthepriming
liquid will evaporate.
6.4 Flushing liquid
Inpumpswithaushedshaftseal,checkthatthesupplyinletfor
theushingmediumisopenandthattheowofthemediumis
adequate(approx.15-30litres/hour).
Fig. 6
10
APV