Graco BULLDOG 222248 - Manual (Page 4)

4 306–646
INSTALLATION
E
F
H
J
K
D
L
KEY
A Air Supply Hose to Pump
B Air Line Filter
C Air Regulator and Gauge
D Bleed–Type Master Air Valve
E Air Line Lubricator
F Pump Runaway Valve
G Bleed–Type Master Air Valve
H Fluid Drain Valve
J Air–Powered Ram
K Gun/Dispensing Valve
L Grounded Fluid Supply Hose
M Whip Hose
N Air Supply Hose to Ram
Y Pump Ground Wire
4 Pump Bleeder Valve
TYPICAL INSTALLATION
G
A
M
N
C
B
Y
4
The reference numbers and letters in the text refer to the
callouts in Figures 1–3 and the Parts Drawings.
See pages 16–18 for accessories available from Graco.
Be sure all accessories are properly sized to withstand
the pressures in the system.
The Typical Installation shown above is only a guide to
selecting and installing required and optional accesso-
ries. For assistance in designing a system to suit your
particular needs, contact your Graco representative.
The Dimensional Drawing on page 19 provides neces-
sary measurements for mounting the pump. If you use an
accessory ram (J), as shown in the T ypical Installation,
refer to the separate ram manual for mounting dimension
requirements.
System Accessories
Install the air line accessories in the order shown in the
Typical Installation. Working upstream from the pump air
inlet, install a pump runaway valve (F) to shut off the air to
the pump if the pump accelerates beyond the pread-
justed setting. A pump which runs too fast can be seri-
ously damaged.
Next, install an air line lubricator (E) for automatic air mo-
tor lubrication, a bleed–type master air valve (D) to re-
lieve air trapped between the valve and the pump, an air
regulator (C) to control pump speed, and an air line filter
(B) to remove harmful dirt and moisture from the com-
pressed air supply. Install a second bleed valve (G) on
the pump air line to isolate the accessories for servicing.
Be sure the pump air line (A) is properly grounded, and is
large enough to supply an adequate volume of air to the
motor. An air–powered ram (J) requires a separate
grounded air supply line (N).
WARNING
Two accessories are required in your system: a
bleed–type master air valve (D) and a fluid drain
valve (H). These accessories help reduce the risk of
serious bodily injury including fluid injection, splash-
ing in the eyes or on the skin, and injury from moving
parts if you are adjusting or repairing the pump.
The
bleed–type master air valve relieves air trapped
between this valve and the pump after the air is shut
off. Trapped air can cause the pump to cycle unex-
pectedly. Locate the valve close to the pump.
The
fluid drain valve assists in relieving fluid pres-
sure in the displacement pump, hose and spray gun;
triggering the spray gun to relieve pressure may not
be sufficient.
Install a fluid drain valve (H) close to the pump fluid outlet.
Then connect a grounded fluid supply hose (L). Be-
tween the fluid supply hose (L) and the gun/dispensing
valve (K), install a whip hose (M) for greater flexibility.
NOTE: To use the optional fluid outlet at the base of the
air motor, connect a riser tube between the stan-
dard outlet and the optional outlet.
GROUNDING
WARNING
Before operating the pump, ground the system as
explained under FIRE OR EXPLOSION HAZARD
and Grounding on page 3.