Adjust Pressure Control; Tip And Pressure Selection; Spray Techniques - Graco D Series Operation, Parts

How to Spray

Adjust Pressure Control

The pressure control knob allows for infinite pressure adjustment. To reduce overspray, always
start at the lowest pressure setting and increase pressure to the minimum setting that results
in an acceptable spray pattern.
3000 psi
(207 bar, 20.7 MPa)
To select function, align symbol on pressure control knob with setting indicator on sprayer.

Tip and Pressure Selection

See table for recommended spray pressure for your material. Refer to paint (material) can for
manufacturer's recommendations. Maximum tip hole sizes supported by the sprayer:
– SP340:0.017 in. (0.43 mm)
– SP380, S1900: 0.019 in. (0.48 mm)
Spray Pressure
Setting
Tip Hole Size
0.011 in. (0.28 mm)
0.013 in. (0.33 mm)
0.015 in. (0.38 mm)
0.017 in. (0.43 mm)
0.019 in. (0.48 mm)
0.021 in. (0.53 mm)

Spray Techniques

Use a piece of scrap cardboard to practice
these basic spraying techniques before you
begin spraying the surface.
•
Hold gun 12 in. (30 cm) from surface
and aim straight at surface. Tilting gun
to direct spray angle causes an uneven
finish.
•
Flex wrist to keep gun pointed straight.
Fanning gun to direct spray at angle
causes uneven finish.
16
1500 psi
(103 bar, 10.3 MPa)
Stains Enamels
Low
Low Spray High Spray
Spray

 

500 psi
(34.5 bar, 3.5 MPa)
Coatings
Primers Interior Paints Exterior Paints
High Spray
 
 
 
12 in.
(30 cm)
EVEN
FINISH
EVEN FINISH
ti5597b
High Spray




THICK
UNEVEN
FINISH
THIN
ti5585a
THIN THICK
ti2036a
3A3234E
THIN