308981 5
Installation
Air Line
1.
Install the air line accessories as shown in
Fig. 2
.
Mount these accessories on the wall or on a
bracket. Be sure the air line supplying the accesso-
ries is electrically conductive.
a.
The fluid pressure can be controlled in either of
two ways. To control it on the air side, install an
air regulator (G). To control it on the fluid side,
install a fluid regulator (J) near the pump fluid
outlet (see
Fig. 2
).
b.
Locate one bleed-type master air valve (B)
close to the pump and use it to relieve trapped
air. Read the WARNING above. Locate the
other master air valve (E) upstream from all air
line accessories and use it to isolate them
during cleaning and repair.
c.
The air line filter (F) removes harmful dirt and
moisture from the compressed air supply.
2.
Install an electrically conductive, flexible air hose (C)
between the accessories and the 1/4 npt(f) pump air
inlet. Use a minimum 1/4 in. (6.3 mm) ID air hose.
Screw an air line quick disconnect coupler (D) onto
the end of the air hose (C), and screw the mating fit-
ting into the pump air inlet snugly. Do not connect the
coupler (D) to the fitting yet.
Installation of Remote Pilot Air Lines
1.
Refer to Parts Drawings. Connect air line to pump
as in preceding steps.
2.
Connect 1/4 in. O.D. tubing to push type connectors
(16) on underside of pump.
NOTE:
by replacing the push type connectors, other
sizes or types of fittings may be used. The new fittings
will require 1/8 in. npt threads.
3.
Connect remaining ends of tubes to external air sig-
nal, such as Graco’s Cycleflo (P/N 195264) or
Cycleflo II (P/N195265) controllers.
NOTE:
the air pressure at the connectors must be at
least 30% of the air pressure to the air motor for the pump
to operate.
Fluid Suction Line
•
If using a conductive (acetal) pump, use conductive
hoses. If using a non-conductive pump, ground the
fluid system. Read
Grounding
on page 8. The fluid
inlet port is 1/2 in. or 3/4 in.
•
At inlet fluid pressures greater than 15 psi (0.1 MPa, 1
bar), diaphragm life will be shortened.
Fluid Outlet Line
1.
Use electrically conductive fluid hoses (K). The
pump fluid outlet is 1/2 in. or 3/4 in. Screw the fluid
fitting into the pump outlet snugly. Do not over-
tighten.
2.
Install a fluid regulator (J) at the pump fluid outlet to
control fluid pressure, if desired (see
Fig. 2
). See
Air Line
, step 1a, for another method of controlling
pressure.
3.
Install a fluid drain valve (H) near the fluid outlet. Read
the
WARNING
above.
WARNING
A bleed-type master air valve (B) is required in your sys-
tem to relieve air trapped between this valve and the
pump. See
Fig. 2
. Trapped air can cause the pump to
cycle unexpectedly, which could result in serious injury,
including splashing in the eyes or on the skin, injury
from moving parts, or contamination from hazardous flu-
ids.
CAUTION
The pump exhaust air may contain contaminants. Venti-
late to a remote area if the contaminants could affect
your fluid supply. Read
Air Exhaust Ventilation
on
page 6.
WARNING
A fluid drain valve (H) is required in your system to
relieve pressure in the hose if it is plugged. See
Fig. 2
.
The drain valve reduces the risk of serious injury,
including splashing in the eyes or on the skin, or con-
tamination from hazardous fluids when relieving pres-
sure. Install the valve close to the pump fluid outlet.
