RobinAir 15603 Manual

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Operating Manual

To use the gas

ballast feature

MoisturefromtheA/C-Rsystemthatiscarried

intothepumpasavaportendstocondenseinto

aliquidandcombinewiththevacuumpumpoil.

Whenmoisturecontaminatesthepumpoil,it

reducesthepump’sabilitytoreachitsultimate

deepvacuumlevel.

Thegasballastvalvepurgesasmallamountof

atmosphericairthroughtheexhaustchamber.

Thisextravolumeofairmixeswiththevaporfrom

therefrigerantsystemtopreventcondensation

andtohelpexhaustmoistureintheformofvapor

fromthepump.

Tousethegasballast,startthepumpandopen

thegasballastvalveuntilthesystemhasreached

approximately1000-3000microns.Closethe

valvetoallowthepumptopulldowntoitsultimate

vacuumlevel.(Thegasballastvalveislocated

besidethehandle,oppositetheinlettting.)

Thegasballastvalvemaybeopenedorclosedat

anytimeduringpumpoperation.Itisfullyopenat

twoturnscounterclockwise.

NOTE: Robinair recommends the use of a

thermistor vacuum gauge to most accurately

measure vacuum levels.

To maintain the high vacuum

pump

Formaximumperformance,Robinairrecommends

changingvacuumpumpoilaftereachuse.

Vacuum pump oil

Theconditionandtypeofoilusedinanyhighvacuum

pumpare extremelyimportant indetermining the

ultimateattainablevacuum.Robinairrecommends

theuse ofourPremium HighVacuumPump Oil.

Thisoilhasbeenspecicallyblendedtomaintain

maximumviscosityatnormalrunningtemperatures

andtoimprovecoldweatherstarts.

OurPremiumHighVacuumPumpOilisavailable

inquartorgalloncontainers.Orderbypart

number:

13203—Quart(shipped12quartspercase)

13204—Gallon(shipped4gallonspercase)

Oil change procedure

 1.Besurethepumpiswarmedup.

 2.RemovetheOILDRAINcap.Drain

contaminatedoilintoasuitablecontainerand

disposeofcorrectly.Oilcanbeforcedfrom

thepumpbyopeningtheinletandpartially

blockingtheexhaustwithaclothwhilethe

pumpisrunning.Donotoperatethepumpfor

morethan20secondsusingthismethod.

 3.Whentheowofoilhasstopped,tiltthe

pumpforwardtodrainresidualoil.

 4.ReplacetheOILDRAINcap.Removethe

OILFILLcap,andllthereservoirwithnew

vacuumpumpoiluntiltheoiljustshowsatthe

bottomofthesightglass.Theapproximateoil

capacityofthepumpis375milliliters.

 5.Verifytheinletportsarecapped.TurnON

thepump,andallowittorunforoneminute.

Checktheoillevel.Iftheoilisbelowthesight

glassOILLEVELline,addoilslowly(withthe

pumprunning)untiltheoilreachestheOIL

LEVELline.ReplacetheOILFILLcap,cap

theinlet,andtightenthedraincap.

 6.Iftheoilisbadlycontaminated,youmayneed

toushthepump.Toush,removethepump

draincapandstartthepump.Slowlypoura

smallquantityofnewpumpoilthroughtheoil

llinlet.

Repeatthisprocedureasrequireduntilthe

contaminationisremoved.ReplacetheOIL

DRAINcapandrellthereservoirtothe

correctlevelusingfreshpumpoil(Step4).

Cleaning the pump

Useonlysoapandwatertocleanthe

pump.Donotusecommercialcleanersthat

containdegreasingagentsthatcandamage

polycarbonates.Thepumphandleandbaseare

madeofLexan,oneofthetoughestpolycarbonate

plasticsavailable.However,itissensitiveto

degreasingagents.

*Lexan is a registered trademark of General

Electric

Motor lubrication

Afterthreeyearsofnormalserviceoroneyear

ofheavy-dutyservice,addmotoroil.Useelectric

motoroilorSAE10oil.

To shut down the

pump after use

Tohelpprolongpumplifeandpromoteeasystart-

ing,followtheseproceduresforshutdown:

 1.Closethemanifoldvalvebetweenthepump

andthesystem.

 2.TurntheIso-ValvetotheCLOSEDposition.

 3.Removethehosefromthepumpinlet.

 4.TurnthepumppowerswitchtoOFF,then

returntheIso-ValvetotheOPENpositionfor

afewsecondstorelieveanyvacuuminside

thepump.

 5.Captheinletporttopreventanycontamina-

tionorlooseparticlesfromenteringtheport.