Install The Air Line Accessories - Graco PRO AA5500SC Instruction Manual

KEY–Fig. 1 and 2
A* Bleed-type Master Air Valve
B Air Line Filter
C* Pump Air Regulator
D Air Line Lubricator
E Pump Runaway Valve
F Pump
G* Pump Ground Wire
H Fluid Shut-off Valve
J* Fluid Pressure Regulator
K Pressure Gauge
L* Grounded Fluid Hose with spring guards
M* Fluid Drain Valve
N Fluid Filter
P Pump Air Line
Q Gun Air Pressure Regulator
R Main Air Line
S Solenoid Valve, requires quick-exhaust port*
T* Bleed-type Air Shut-off Valve
U* True Earth Ground
V Fluid Hose, 1/4–18 npsm gun fluid inlet
W Mounting Bracket for 1/2 inch (127 mm) rod, P/N 189581
X PRO AA5500sc Spray Gun, P/N 236688

Install the Air Line Accessories

WARNING
COMPONENT RUPTURE HAZARD
To reduce the risk of serious injury
due to component rupture:
D The pump pressure must be limited by the
pump air regulator (C). See Fig. 1, page 8.
Do not rely on the gun fluid regulator (J) to
limit the fluid pressure to the gun.
The fluid supply pump must be prevented
from producing a fluid pressure greater than
the 3000 psi (207 bar, 20.7 MPa) Maximum
Working Pressure of the spray gun. For ex-
ample, the air supply pressure to a 30:1
pump must not exceed 100 psi (7 bar, 0.7
MPa).
D Be sure that all spray equipment and acces-
sories added to the spray system are prop-
erly rated to withstand the maximum working
pressure of your system.
1. Install a bleed-type master air valve (A) on the
main air supply line (R) to shut off all the air to the
gun. See Fig. 1, page 8.
2. To ensure a dry, clean air supply to the gun, install
an air line filter and an air and water separator on
the air lines. Dirt and moisture can ruin the appear-
ance of your finished workpiece and can cause the
gun to malfunction.
Installation
Y Atomizing Air Hose, 3/8 inch (9.5 mm) O.D.
Z Cylinder Air Hose, 1/4 inch (6.4 mm) O.D.
AA*Ground Wire on Graco Electrically Conductive Air Hose
BB*Graco Electrically Conductive Air Hose (Turbine Air Hose),
See page 11 for part numbers
CC kV Switch Air Hose, 1/4 inch (6.4 mm) O.D., plug the gun fitting if
it is not used
DD 24 Volt Power Supply, P/N 235301
EE 4–20 mA Outputs
FF kV Only ES Display Module (battery operated), P/N 189762
GG Full Feature ES Display Module, P/N 224117
HH Fiber Optic Cable, P/N 224680 to 224686
JJ Bulkhead, P/N 189870
KK Fiber Optic Cable, P/N 224670 to 224676


The turbine air supply must be interlocked with the spray booth
ventilation fans.

A maximum of two splices with a total of 108 feet (32.94 m) of
cable can be used. For the strongest light signals, use a minimum
number of bulkhead splices.
* Equipment required for safe operation of system. Must be pur-
chased separately.
** See page 11 for a description of the manifold connections.
3. Install an air regulator (Q) on each of the air supply
lines (BB, CC. Y. Z) to control the air pressure to
the gun.
4. Install a solenoid valve (S) on the atomization air
line (Y) to actuate the gun and shut off the
atomization air to the gun. The solenoid valve must
have a quick exhaust port.
5. Install a bleed-type air shut-off valve (T) on the
pump air line to shut off air to the pump. Install an
additional bleed-type valve on each pump air
supply line to relieve air trapped between this valve
and the pump after the air regulator is shut off.
injecting fluid through the skin. The solenoid valves
(S) must have a quick-exhaust port so trapped air will
be relieved between the valve and the gun when the
solenoids are shut off. The bleed-type air shut-off
valve (T) is required on the pump air line (P) so
trapped air will be relieved between the valve and the
pump after the valves or regulator are closed.
WARNING
INJECTION HAZARD
Trapped air can cause the pump to cycle
or the gun to spray unexpectedly, which
could result in a serious injury, including
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