Evercraft 776-3758 - Troubleshooting Spray Patterns; Common Pattern Issues; Spraying and Finish Problems

776-3758 8 Rev. 07/21/14
Onesideofnozzlewingis
clogged.
PROBLEMSPRAY PATTERN/
CONDITION
A.) Looseairnozzle.
B.) Materialaroundoutsideof
 airnozzlehasdried.
A.) Atomizationairpressureisset
 toohigh.
B.) Tryingtosprayathinmaterial
 intoowideapattern.
Spitting
SOLUTION
A.) Reduceairpressure.
B.) Increasematerialcontrolbyturningfluid
 controlscrewtoleft,whilereducingspray
 widthbyturningspraywidthadjustment
 screwtoright.
Soaknozzleinsolventtoloosenclog,thenblowair
throughuntilclean.Tocleanorificesuseabroomstraw
ortoothpick.Nevertryanddetachdriedmaterialwith
sharptool.
A.) Tightenairnozzle.
B.) Takeoffairnozzleandwipeofffluidtip,
 usingragmoistenedwiththinner.
A.) Backupknurlednut,putafewdropsof
 machineoilonpacking,re-tightennut.
B.) Takeofffluidnozzle,cleanrearofnozzleand
 seatingunbody.Replacenozzleandtighten.
C.) Tightenorchangeoutswivelnut.
A.) Packingaroundneedlevalve
is dried out.
B. Fluidnozzlelooselyinstalled,
 ordirtbetweennozzle
 andbody.
C.) Looseordefectiveswivelnut
 onsiphoncup.
Fluidleakagefrom
packingnut.
A.) Packingnutloose.
B.) Packingwornordry.
A.) Tighten,butnotsotightastogripneedle.
B.) Replacepackingorlubricate.
Drippingfromfluidtip.
A.) Drypacking.
B.) Sluggishneedle.
C.) Tightpackingnut.
D.) Wornfluidnozzleorneedle.
A.) Lubricate.
B.) Lubricate.
C.) Adjust.
D.) Forpressurefeed,replacewithnewfluidnozzle
and needle.
Thin,sandycoarsefinish.
Thick,dimpledfinish
resemblingorangepeel.
A.) Gunheldtoofarfromsurface.
B.) Atomizationpressureset
 toohigh.
Gunheldtooclosetosurface.
A.) Movegunclosertosurface.
B.) Adjustatomizationpressure.
Movegunfurtherfromsurface.
Willnotspray.
A.) Noairpressureatgun.
B.) Fluidpressuretoolowwith
internal mix cap and
 pressuretank.
C.) Fluidcontrolscrewnot
 openenough.
D.) Fluidtooheavy.
A.) Checkairsupplyandairlines.
B.) Increasefluidpressureattank.
C.) Openfluidcontrolscrew.
D.) Thinmaterialorchangetopressurefeed.
Unabletogetroundspray.
Fanadjustmentscrewnot
seatingproperly.
Clean or replace.
Improperspraypattern.
A.) Gunimproperlyadjusted.
B.) Dirtyaircap.
C.) Fluidtipobstructed.
D.) Sluggishneedle.
A.) Readjustgun.Followinstructionscarefully.
B.) Cleanaircap.
C.) Clean.
D.) Lubricate.
TrOublEshOOTiNg