Graco Reactor 2 H-XP3

Troubleshooting
Proportioning Proportioning
Proportioning
System System
System
Beforeperforminganytroubleshooting
procedures:
1.FollowPressureReliefProcedure,page49.
2.TurnthemainpowerswitchOFF.
3.Allowequipmenttocool.
Problems: Problems:
Problems:
Trytherecommendedsolutionsintheorder
givenforeachproblem,toavoidunnecessary
repairs.Also,determinethatallcircuitbreakers,
switches,andcontrolsareproperlysetand
wiringiscorrectbeforeassumingthereisa
problem.
PROBLEM PROBLEM
PROBLEM
CAUSE CAUSE
CAUSE
SOLUTION SOLUTION
SOLUTION
Proportioningpumpdoesnot
holdpressurewhenstalled.
Pumppistonorintakevalve
leaking.
1.Observegaugesto
determinewhichpump
islosingpressure.
2.Determineinwhichdirection
thepumphasstalledby
observingwhichdirectional
iconisdisplayedontheADM
Homescreen.SeeTable1.
3.Repairthevalve.Seepump
manual.
Restrictionatthegun.Cleanthegun;seeyourseparate
gunmanual.
Increaseuidsupplyto
proportioningpump:
•Use2:1supplypump
•Useminimum3/4in.(19mm)
IDsupplyhose,asshortas
practical
Fluidistoothick.Consult
yourmaterialsupplierforthe
recommendeduidtemperature
tomaintainaviscosityof250to
1500centipoise.
Cleaninletstrainerscreen.
Inadequateowfrompump;
cavitation.
Wornpumpinletvalveball/seat
orgasket.Replacepump.
MaterialImbalance.See
Pressure/MaterialImbalance,
page41.
Pressurerelief/circulationvalve
leakingbacktosupply.
Removereturnlineand
determineifowispresent
whileinSPRAYmode.
40
334946J