Installation - Graco Husky A Series Instructions Manual

Reference numbers and letters in parentheses refer to
the callouts in the figures and in the Parts Lists on
page 12 and the Parts Drawing on page 13.
CAUTION
A second shut-off valve is recommended for any
pressure- or gravity-fed applications. It is shown in
Fig. 1. See Inlet Shut-Off Valve Kit on page 11.
1. Mount the leak detector securely and in an upright
position as shown in Fig. 1.
2. Install the shut-off valve (1) directly to the air inlet
port of the air-operated diaphragm pump. It
makes no difference whether the shut-off valve is
installed before or after any air regulator installed
in the system.
NOTE: Install the shut-off valve (1) so that the IN
port points toward the source air line and the OUT
port points toward the pump.
The installation shown in Fig. 1 is only a guide for connecting the leak detector to your system. Contact your Graco
distributor for assistance in planning a system to suit your needs.
DETAIL
connected
to shut-off valve
1
Fig. 1
4 308702

Installation

fluid hose
Order a fluid hose from the list below:
06846
221170 coupled, 3/4 npt, 3 ft long
221171 coupled, 3/4 npt, 6 ft long
H53806 coupled, 3/8–18 npsm, 6 ft long
Second shut-off valve is part of Inlet Valve
Shut-Off kit 239114, which may be purchased
separately.
3. Install a hose, with a maximum pressure rating at
least as high as the system air pressure, from the
pump exhaust port to the leak detector inlet port.
See the list in Fig. 1 for hose part numbers.
NOTE: You may use rigid piping; however, you
should use at least 6 in. (150 mm) of flexible hose
to connect the rigid pipe to the leak detector port.
4. Connect a 1/4-in. air line to the quick-connect male
air line fitting (10) on the regulator (8).
5. Adjust the regulator (8) pressure to 50 to 60 psi
(0.34 to 0.41 MPa, 3.4 to 4.1 bar).
NOTE: Because the shut-off valve (1) is a
normally closed valve, the pump will not operate
unless an air line is connected to the leak detector
air line fitting (10).
6. Ground the leak detector and, if appropriate, the
fluid containers. See Grounding on pages 5
and 6.
7. See Operating Instructions on page 8.
air line
leak
1
detector
inlet port
pump
exhaust
port
1
10
8
see detail
06845A