Graco Therm-O-Flow 20, Instructions - Parts Manual

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Installation
8 309858K
3-Regulator Air Control Modules
(234236, not shown)
This module includes the following components:
• Pump Bleed-type Master Air Valve (C): is installed
so the valve is easily accessible and located down-
stream from the air regulator. It can be used for a
safety lockout.
• Pump Air Regulator (D): adjusts air pressure to
control pump speed and outlet pressure (located on
the air control panel).
• Ram Air Regulator ((N): separate air regulators to
control the ram up and down air pressures.
• Pump Air Supply Hose (H): connects pump air
regulator to the air motor.
• Air Manifold (item 23, page 30): divides main air
supply into separate lines for the pump and ram.
Grounding
.
Air and fluid hoses: use only electrically conductive
hoses. Check the electrical resistance of your air and
fluid hoses. If the total resistance to ground exceeds 29
megohms, replace the hose immediately.
Dispense valve: ground through connection to a prop-
erly grounded fluid hose and pump.
Fluid supply container: follow your local code.
Solvent pails used when flushing: follow your local
code. Use only conductive, metal pails, placed on a
grounded surface. Do not place the pail on a noncon-
ductive surface, such as paper or cardboard, which
interrupts grounding continuity.
To maintain grounding continuity when flushing or
relieving pressure: follow the instructions in your sepa-
rate gun manual for safely grounding your gun while
purging.
Location
Refer to the dimensional drawings, page 60, for ram
mounting and clearance dimensions.
Make sure:
• There is sufficient space for installing and using the
equipment, including overhead clearance for the
pump and ram when the ram is fully raised.
• Air regulators for the pump and ram are fully acces-
sible.
• There is easy and safe access to an appropriate
electrical power source. The National Electrical
Code requires 3 feet (0.91 m) of open space in front
of the electrical panel.
You can install the system in a permanent location or
use a mobile platform.
Permanent Location
1. Follow the previous Location recommendations.
2. Level the base of the ram, using metal shims.
3. Using the holes in the base as a guide, drill holes for
1/2 in. (13 mm) anchors.
4. Bolt the ram to the floor anchors, which must be
long enough to prevent the unit from tipping.
Securing Ram to a Mobile Platform
Use the Mobile Platform Kit (918414) to secure the ram
to a mobile platform (included with unit). See page 30,
item 10 or page 32 or 34, item 19.
1. Follow the previous Location recommendations.
2. Locate the mobile platform on a surface where it
won't roll and brace the platform to ensure it
remains stationary while you secure the ram.
3. Place the ram on the platform and line up the holes
in its base with the holes in the platform.
4. Secure the ram to the platform with the nuts and
bolts provided.
5. Make sure the ram and platform are stable in all
operating positions so the ram won't tip.
WARNING
The system must be properly grounded. Read warn-
ings, page 4. Follow the instructions below.