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3. Electrically ground the heater and heated hoses.
a. Wire the heater to a positively grounded power
supply. In a mobile installation, be sure the truck
or trailer is connected to a true earth ground.
b. Connect the heated hose to a properly
grounded heater. The Ground Fault Interrupter
on the hose control panel of the Foam-Cat
Heater senses electrical continuity in the
heated hoses; it cannot function unless the
heater is positively grounded. In Europe, the
hose continuity must comply with VDE 0100.
4. Use only electrically conductive air hoses.
5. Use only Graco Foam-Catr Heated (fluid) Hoses,
Models 218613, 218614, which are electrically con-
ductive.
NOTE: To ensure positive grounding and further
reduce the risk of electric shock, redundant
grounding is recommended. The long lines of the
shielded-wire heated hose have a higher than
normal capacitive leakage current to ground.
6. Obtain electrical grounding for the spray gun by
connecting it to a properly grounded fluid hose and
pump.
7. Electrically ground the following objects according
to your local code.
D
The object being sprayed.
D
The fluid supply container.
D
All solvent pails used when flushing. Use only
metal pails, which are conductive. Do not
place the pail on a non-conductive surface,
such as paper or cardboard, which interrupts
the grounding continuity.
308144
14
Installation
8. To maintain grounding continuity when flushing or
relieving pressure, always hold a metal part of the
gun firmly to the side of a grounded metal pail,
then trigger the gun.
IX . Install the air dryer drum fittings.
1. Install the drum fittings (56) in the 3/4 in. vent port
of the corresponding drum of fluid.
2. Close the shutoff valve (57) and connect the
corresponding dry air hoses (58). Use only the
special pin fitting (59) and coupler (60) to connect
the dry air hoses to the drum fittings. Do not use
additional lengths of dry air hose. See Fig. 14.
COMPONENT RUPTURE HAZARD
The special air line pin fitting (59) and coupler (60)
are designed to prevent accidentally coupling an
unregulated air supply hose to the drum. Unregu-
lated air can over pressurize the drum and cause it
to rupture and cause serious injury.
Do not substitute a different type of coupler and
fitting! Use genuine Graco replacement parts.
Fig. 14
WARNING
58
60
59
57
56
1
Shown in the
1
open position.
04458
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