Setup - Graco Delta Spray 7031A Instructions-Parts List Manual

1. Connect the Air Line
NOTE:
D You must install an air pressure regulator (F) on the
gun air line to control air pressure to the gun. See
Fig. 2.
D If your regulated air source does not have a filter,
install an air filter (G) on the air line to ensure a dry,
clean air supply to the gun. Dirt and moisture can
ruin the appearance of your finished workpiece.
See Fig. 2.
D Use a 5/16 inch (7.9 mm) I.D. air hose to minimize
excessive pressure drop in the hose. See the
Pressure Drop Chart on page 12.
D If a 1/4 inch (6.35 mm) I.D. air hose is preferred for
flexibility, see the Pressure Drop Chart on page 12
to help set the necessary gun air pressure.
A. Connect the air hose (D) to the 1/4 npsm gun air
inlet (C).
C
D
Fig. 1
B. Connect the other end of the air hose (D) to a reg-
ulated air supply line (H).
NOTE: Fig. 2 shows the filter (G) air regulator (F),
and air shut-off valve (E) on the air supply line.
H
G
E
Fig. 2

Setup

7014A
F
D
01990
2. Connect the Fluid Hose
NOTE:
D Before connecting the fluid line, blow it out with air
and flush it with solvent. Use solvent which is
compatible with the fluid to be sprayed.
D Install a fluid regulator (L) on the fluid line to control
fluid pressure to the gun. See Fig. 4.
D Filter the fluid line of coarse particles and sediment
to avoid clogging the fluid nozzle and causing
finishing defects.
A. Connect the fluid hose (J) to the gun fluid inlet (B)
3/8–18 npsm [R 3/8–19] compound thread.
B
J
Fig. 3
B. Connect the other end of the fluid hose (J) to a
regulated fluid supply line (K).
NOTE: Fig. 4 shows the fluid regulator (L) and
fluid shut-off valve (M) on the fluid supply line (K).
L
Fig. 4
7015A
K
M
J
7016A
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