Spraying - Graco ProMix 2KE Operation

Spraying

1. Calibrate the pumps as described in Pump Calibra-
tion, page 41. Pump factors will update automati-
cally based on calibration results. Make additional
manual changes, if desired, as described in Cali-
bration 1 and 2 (Screens 22 and 23), page
34.Adjust the flow rate.
2. Press to spray the loaded recipe.
3. Adjust the flow rate. The fluid flow rate shown on the
Display Module screen is for either component A or
B, depending on which dose valve is open.
F . 18. Flow Rate Display
IG
Watch the fluid flow rate displayed on the screen
while the gun is fully open. Verify that the flow rate
of components A and B are within 10% of each
other.
If the fluid flow rate is too low: increase air pres-
sure to component A and B fluid supplies or
increase the regulated fluid pressure of mixed
material.
If the fluid flow rate is too high: reduce the air
pressure to component A and B fluid supplies,
close the dose valves further, or decrease the regu-
lated fluid pressure of mixed material.
3A0868A
4. Turn on atomizing air to the gun. Check the spray
pattern as instructed in your spray gun manual.
NOTE:
• Pressure adjustments of each component will
vary with fluid viscosity. Start with the same fluid
pressure for component A and B, then adjust as
needed.
• Do not use the first 4-5 oz. (120-150 cc) of
material as it may not be thoroughly mixed due
to errors while priming the system.
Do not allow a fluid supply tank to run empty. It is pos-
sible for air flow in the supply line to turn gear meters
in the same manner as fluid. This can damage the
meters and lead to the proportioning of fluid and air
that meets the ratio and tolerance settings of the
equipment. This can further result in spraying
uncatalyzed or poorly catalyzed material.
Flow
rate
Basic Operation
NOTICE
27