Graco Reactor 3 E-20 Elite - Page 38

Operation
12.OpentheAandBgunuidvalves.
Fusion Fusion
Fusion
Probler Probler
Probler
NOTICE NOTICE
NOTICE
Topreventmaterialcrossoveron
impingementguns,neveropenuid
manifoldvalvesortriggergunifpressures
areimbalanced.
13.Disengagethegunpistonsafetylock.
Fusion Fusion
Fusion
Probler Probler
Probler
14.Pulltheguntriggertotestsprayonto
cardboard.Ifnecessary,adjustpressureand
temperaturetogetdesiredresults.
Spray Spray
Spray
Adjustments Adjustments
Adjustments
Flowrate,atomization,andamountofoverspray
areaffectedbyfourvariables:
•Fluid Fluid
Fluid
pressure pressure
pressure
setting. setting.
setting.
Toolittlepressure
resultsinanunevenpattern,coarsedroplet
size,lowow,andpoormixing.Toomuch
pressureresultsinexcessiveoverspray,high
owrates,difcultcontrol,andexcessive
wear.
•Fluid Fluid
Fluid
temperature. temperature.
temperature.
Similareffectstouid
pressuresetting.TheAandBtemperatures
canbeoffsettohelpbalancetheuid
pressure.
•Mix Mix
Mix
chamber chamber
chamber
size. size.
size.
Choiceofmixchamberis
basedondesiredowrateanduidviscosity.
•Clean-off Clean-off
Clean-off
air air
air
adjustment. adjustment.
adjustment.
Toolittleclean-off
airresultsindropletsbuildinguponthefront
ofthenozzle,andnopatterncontainment
tocontroloverspray.Toomuchclean-off
airresultsinair-assistedatomizationand
excessiveoverspray.
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