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Setup
16 333309E
Setup
See FIG. 2.
1. Install suction hoses (VA, VB) to the pump fluid
inlets (U). See page 46.
2. Connect solvent supply (DD) to solvent flush inlet
(J).
3. Attach one end of the gun fluid supply hose (M) to
the mixer (X) outlet.
4. Attach one end of the gun air supply hose (N) to gun
air pressure regulator (D) atomizing air port.
5. Attach remaining end of the gun air supply hose (N)
to air inlet at base of gun (L).
6. Connect gun fluid supply hose (M) to the base of the
gun (L) at swivel (K).
7. Clip gun fluid supply hose (M) and gun air supply
hose (N) together with the supplied hose clips (qty.
of 7). Space clips as needed.
8. Apply lens cover to both regulator gauge lenses.
9. Verify that suction hose (VA, VB) fittings are tight.
NOTE: Loose suction hose fittings allow air to enter into
the proportioning pump resulting in the fluid ratio to be
altered.
Connect Air Lines
See FIG. 1.
1. Attach fittings to the air control module.
2. Attach the air hose to the fitting on the air control
module.
NOTE: The air supply line to proportioner module has to
be a minimum of 3/8 in. (9.5 mm) ID.
3. Attach air line to solvent pump.
Feed Systems
Ensure your feed systems are designed to supply twice
the volume used by each component. This supply pump
pressure should never exceed 25% of the proportioner
output pressure or 250 psi (16 bar) maximum supply
pressure.
Example: 4:1 proportioner. 2.0 lpm output, 100 bar.
4:1 ratio at 2.0 lpm = 1.6 lpm of “A” component and.4
lpm of component “B”.
• “A” feed pump needs to have a 3.2 lpm capacity at a
max of 250psi (16 bar).
• “B” feed pump needs to be at least.8 lpm at 250 psi
max.
Material supply is critical to proper proportioner opera-
tion. Material must fill the proportioner cylinders on their
upstroke totally to eliminate a “diving” of the cylinders on
the top change–over. This “diving” will also be seen as a
pressure drop at the change over. This will cause an off
ratio condition.
If materials require heating they can be heated in the
supply feed as well as the outbound side of the pumps.
The maximum fluid temperature of 160°F should not be
exceeded.
Review your feed systems with your Graco Distributor.
NOTICE
Using more supply pressure than necessary to fully
supply the proportioning cylinder can cause varying
atomization, inconsistent spray pressure, and incor-
rect fluid ratios.