Harbor Freight Tools 66222 - Manual (Page 15)

SKU 66222 For technical questions, please call 1-800-444-3353. Page 15
Problem Possible causes Likely Solutions
Paint surface is bumpy or
“orange peeled
”
Paint is applied too thick 1.
Incorrect paint volume 2.
Insufficient air pressure 3.
Paint gun too far from paint 4.
surface during spraying
Paint must be thinned properly 1.
before spraying
Adjust Fluid Control Knob (12)
2.
Adjust Air Regulator (37) and Air 3.
Adjustment Valve (31)
Hold spray gun closer to surface
4.
during spraying.
Paint sags or runs Excess thinning of paint 1.
Paint applied too thick 2.
Paint gun too close to work 3.
surface
Uneven or hesitant motion of
4.
spray gun
Excess overlapping of each 5.
spray stroke
Excessive paint fluid 6.
Recheck paint viscosity. Add 1.
unmixed paint to thicken mixture.
Apply thinner coats, allowing paint
2.
to get tacky between coats.
Move spray gun further back from
3.
paint surface when applying paint.
Keep spray gun moving during
4.
painting. Hesitations can cause
sags or runs.
Overlap each stroke to keep the
5.
coverage even, but be aware that
you are adding coat thickness by
overlapping.
Adjust the Fluid Control Knob (12)
6.
Blotchy surface (blushing)
or uneven color
Paint dries too fast 1.
Uneven paint application 2.
Work material absorbs paint 3.
unevenly
Use less thinner or add a drier. 1.
Start each stroke off the work 2.
material and overlap each stroke
consistently.
Use a conditioner or sealer coat
3.
before applying the finish coat.
Spots on surface
with light center (fish eyes)
Paint mixture too thin 1.
Improper primer or 2.
incompatible surface
Surface contamination 3.
Add undiluted paint to thicken 1.
mixture
Check manufacturer’s
2.
recommendations for primer or
compatible surfaces
Clean surface thoroughly with
3.
thinner before applying paint
Spots on surface with dark
center (contamination)
Dust or dirt on surface 1.
Insufficiently sanded 2.
Raised grain 3.
Clean surface with compressed air 1.
or tack cloth before painting
Sand wood to a sufficiently fine grit
2.
before painting.
Wipe wood surface with thinner to
3.
raise grain, then sand with fine grit
to knock of “hairs”
Paint aPPLicatiOn trOuBLeSHOOtinG