Installation
4
310547C
Installation
Ground The System
Ground the system as instructed here and in the individ-
ual component manuals.
The following grounding instructions are minimum
requirements for a basic dispensing system. Your sys-
tem may include other equipment or objects which must
be grounded. Check your local electrical code for
detailed grounding instructions for your area and type of
equipment. Your system must be connected to a true
earth ground.
1.
Pump:
connect a ground wire and clamp to a true
earth ground as shown in separate pump manual.
2.
Fluid and air hoses:
use only electrically conduc-
tive hoses.
3.
Flow gun:
ground through the connection of a prop-
erly grounded fluid hose or a grounding cable.
4.
Air compressor:
ground according to the manufac-
turer’s recommendations.
5.
Fluid supply container:
ground according to local
code.
6.
Flammable liquids in the dispensing area:
must
be kept in approved, grounded containers. Do not
store more than the quantity needed for one shift.
7.
Solvent pails used when flushing:
ground accord-
ing to local code.
Installation
NOTE:
Read this manual thoroughly before installing
the automatic flow gun.
The flow gun has an untapped hole for mounting, mak-
ing it ideal for use in manual applications and high pro-
duction operations. Material can be supplied to the
automatic flow gun by any standard Graco pump.
1.
Inspect the flow gun for shipping damage. If dam-
age is found, notify the carrier immediately.
NOTE: For C27151 only --
Remove collar and install 32
series nozzle (not included).
2.
Connect 1/8 npt cylinder ports as follows:
•
Connect the normally-off cylinder port of the
four-way valve to the 1/8 npt air inlet, located on
the bottom of the gun body.
•
Connect the other cylinder port to the 1/8 npt air
inlet, located in the cylinder cap.
NOTE: For C27151 only
-- Using a three-way valve and
actuator, connect the normally off port to the 1/8 npt air
inlet in the gun body.
3.
Supply the actuator valve with filtered and oiled air
at 80 psi (552 kPa, 5.5 bar) minimum.
4.
Remove the nozzle and actuator device to check
that the needle protrudes from the seal when the
gun is actuated. Then reinstall the parts.
5.
Connect the fluid supply hose to the 1/4 npt fluid
inlet, located in the top of the gun body.
6.
With the actuator depressed, gradually apply fluid
pressure until the desired flow rate is attained and
all air is purged from the fluid hose and supply sys-
tem.
7.
Mount the gun on a suitable bracket. Adjust the noz-
zle height.
WARNING
To reduce the risk of a fire, explosion, and serious
injury, proper electrical grounding of every part of your
system is essential. Read the warning section,
, on page 3 and follow the
grounding instructions below.
COMPONENT RUPTURE HAZARD
To reduce the risk of component rupture, which could
cause serious injury, including injection, do not exceed
the gun’s Maximum Fluid Working Pressure of 2400
psi (17 MPa, 165 bar).
