Graco 3A2495C Manual De Usuario
Installation
Air Supply Line
To reduce the risk of electric shock, the air supply
hose must be electrically connected to a true earth
ground. Use only Graco Grounded Air Supply
Hose.
1. See Fig. 10. Use the Graco Grounded Air Supply
Hose (AH) to supply air to the gun. The gun air
inlet fitting has a left-hand thread. The air supply
hose ground wire (AG) must be connected to a
true earth ground. Do not connect the air supply
hose to the gun air inlet yet.
2. Install an air line filter/water separator (AF) on the
gun air line to ensure a dry, clean air supply to the
gun. Dirt and moisture can ruin the appearance
of your finished workpiece and can cause the
gun to malfunction.
To reduce the risk of serious injury due to
component rupture, including skin injection,
pump pressure must be limited by the pump air
regulator. Do not rely on the gun fluid regulator
to limit the fluid pressure to the gun.
The fluid supply pump must be prevented from
The fluid supply pump must be prevented from
producing a fluid pressure greater than the
3000 psi (21 MPa, 210 bar)
Maximum Working
Fluid Pressure
of the gun. For example, the air
supply pressure to a 30:1 ratio pump must not
exceed 100 psi (0.7 MPa, 7 bar).
3. Install bleed-type air regulators (PR, GR) on
the pump and gun air supply lines to control air
pressure to the pump and gun.
Trapped air can cause the pump to cycle
unexpectedly, which can result in serious
injury, including skin injection and splashing
fluid in the eyes or on the skin. Do not operate
the equipment without the bleed-type air valve
(BV) installed.
4. Install a bleed-type air valve (BV) on the pump
air supply line. The bleed-type air valve (BV) is
required in your system to shut off air to the pump
and relieve air trapped between the valve and
the pump after the air regulator is shut off. Install
an additional bleed-type air valve on the main air
line (MA) to isolate the accessories for servicing.
5. Install an air bleed valve (BV) on each gun air
supply line to shut off air to the gun(s) and relieve
air trapped between the valve and the gun after
the air regulator is shut off.
Fluid Supply Line
1. Blow out the fluid line (FL) with air and flush it
with solvent. Use solvent which is compatible
with the fluid to be sprayed. Do not connect the
fluid supply line to the gun fluid inlet yet.
2. Install a fluid pressure regulator (FR) on the fluid
line to control fluid pressure to the gun.
3. Install a fluid filter (FF) near the pump outlet, to
remove particles and sediment which could clog
the spray nozzle.
NOTE: The gun includes an inline fluid filter for
NOTE: The gun includes an inline fluid filter for
additional filtration.
To reduce the risk of serious injury, including
skin injection and splashing fluid in the eyes or
on the skin, do not operate equipment without
the fluid drain valve (FD) installed.
4. The fluid drain valve (FD) 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.
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3A2495C