Graco 224-617, Instruction Manual

Page: 6 / 16

6 307-488
Setup
General Information
Reference letters shown in parentheses used in text
refer to callouts in figure 2. Figure 2 is only a guide for
selecting and installing system components and acces-
sories. Contact your Graco distributor for help in
designing a system to suit your particular needs. Refer
to the Accessories section for accessories available
from Graco.
System Accessories
WARNING
A main air bleed valve (L), pump air bleed valve
(J), and fluid drain valve (B) are required. These
accessories help reduce the risk of serious injury,
including fluid injection and splashing of fluid in the
eyes or on the skin, and injury from moving parts if
you are adjusting or repairing the pump.
The main air bleed valve (L) shuts off and relieves
the air to the pump. The pump air bleed valve (J)
relieves air trapped between it and the pump after
the air is shut off. Trapped air can cause the pump
to cycle unexpectedly. Locate the valve close to the
pump.
The fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose, and gun.
Triggering the gun to relieve pressure may not be
sufficient.
Supplied Components
The following components are supplied with your
pump:
The bleed-type master air valve (J) is required in
your system to relieve air trapped between it and
the air motor when the valve is closed (see the
WARNING above). Be sure the bleed valve is
easily accessible from the pump, and is located
downstream from the air regulator.
The pump air filter/regulator (E) controls pump
speed and outlet pressure by adjusting the air
pressure to the pump. It also removes harmful dirt
and moisture from the compressed air supply.
Locate the regulator close to the pump, but up-
stream from the bleed-type master air valve.
The fluid drain valve (B) is required in your sys-
tem to relieve fluid pressure in the pump, hose and
gun (see the WARNING at left).
Air Line Accessories
Install the following accessories in the order shown in
Figure 2, using adapters as necessary:
A pump runaway valve (P) senses when the
pump is running too fast and automatically shuts off
the air to the motor. A pump which runs too fast can
be seriously damaged.
An air line lubricator (G) provides automatic air
motor lubrication.
A second bleed-type air valve (L) isolates the air
line accessories for servicing. Locate upstream
from all other air line accessories.
Air and Fluid Hoses
Connect an electrically conductive fluid hose (N) to the
3/8 npsm(f) outlet union (D) of the fluid filter (C).
Connect an electrically conductive air supply hose (M)
to the air inlet union (F).
Connect a spray gun (R) to the fluid hose.