Prime Empty System
3A0420V 27
Recirculate Prior to Spraying or
Re-Prime After a Pump Runs Dry
NOTE: Agitate, recirculate, and heat the material
only as necessary to avoid mixing air into the fluid.
Use the recirculation mode when heating the material is
required. Note the temperature at the top of the heater
(outgoing or back to the hopper). When the thermome-
ter reaches operating temperature, the material is ready
to spray.
If using a system that does not require heat, recircula-
tion is still required prior to spraying. Recirculation
ensures that any settled fillers are mixed in, the pump
lines are fully primed, and the pump check valves are
operating smoothly.
Recirculation also allows you to re-prime one side that
has run dry.
1. Follow Prime Empty System, page 25.
2. Close the dual shutoff handle (AE).
3. Ensure the recirculation hoses (U) are in the correct
hoppers (J).
4. Open the circulation valve handle (AC).
5. For XP Systems:
a. Turn down the air pressure regulator (CB) and
then open the main air shutoff valve (CA). Use
the air pressure regulator to slowly increase the
air pressure to the pumps until they start run-
ning slowly.
b. Run the pumps for a few minutes or until the
material has reached the desired temperature.
See Heat Fluid, page 28.
c. Close the main air shutoff valve (CA).
6. For XP-h Systems:
a. Turn down the pressure control knob and set
the pump valve on.
b. Slowly increase the pressure until the pumps
start running slowly.
c. Run the pumps for a few minutes or until the
material has reached the desired temperature.
See Heat Fluid, page 28.
d. Set the pump valve off.
7. See Spray, page 28.
AC
AE
r_571101_3A0420A_9a-2
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