Graco PRO Xs4 AA Paint Sprayer User Manual


 
Installation
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Connect the Fluid Line
1. Before connecting the fluid line (N), blow it out
with air and flush it with solvent. Use solvent
which is compatible with the fluid to be sprayed.
2. Install a fluid regulator (M) on the fluid line to con-
trol fluid pressure to the gun.
3. Install a drain valve (U) near the pump outlet.
4. Connect the fluid line to the 1/4 npsm gun fluid
inlet (W).
5. Before running any paint through the spray gun,
flush it out with a compatible solvent.
Filter the Fluid
Install a fluid filter (K) at the pump outlet to remove
particles and sediment which could clog the spray tip.
The gun includes an inline fluid filter (1) for additional
filtration.
Select a Spray Tip
The fluid output and pattern width depend on the size
of the spray tip, the fluid viscosity, and the fluid pres-
sure. Use the Spray Tip Selection Chart, page 48, as a
guide for selecting the appropriate spray tip for your
application.
Refer to the gun operation manual to install the spray
tip.
WARNING
Fluid Injection Hazard
The fluid drain valve (U) is required in your
system to assist in relieving fluid pressure
in the displacement pump, hose and gun.
Triggering the gun to relieve pressure may
not be sufficient. Install a drain valve close to the
pump's fluid outlet. The drain valve reduces the risk
of serious injury, including fluid injection and splash-
ing in the eyes or on the skin.
WARNING
Fluid Injection Hazard
To reduce the risk of a fluid injection injury,
always follow the Pressure Relief Proce-
dure, page 25, before removing or install-
ing the spray tip, air cap, or tip guard.