Operation
CAUTION
DThe new system must be cleaned and tested thoroughly before admitting fluid to the regulator to avoid contaminants clogging or damaging the regulator.
DAlways use the lowest possible air and fluid pressures for your application. High pressures cause premature spray nozzle and pump wear.
NOTE: Reference numbers and letters in parentheses in the text refer to the Figs. and Parts Drawing.
Pressure Relief Procedure
WARNING
PRESSURIZED EQUIPMENT HAZARD
Read warnings, page 5.
1.Shut off the pump.
2.Close the fluid regulator’s inlet ball valve. Refer to Figs. 1 and 2.
3.Relieve fluid pressure in the fluid regulator by triggering the spray gun.
Flushing Procedure
DFlush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.
DFlush at the lowest pressure possible. Check connectors for leaks and tighten as necessary.
DFlush with a fluid that is compatible with the fluid being dispensed and the equipment wetted parts.
1.Record the pressure adjustment setting of the fluid regulator before flushing.
2.Shut off the pump and relieve fluid pressure in the system by triggering the gun and opening the back pressure regulator or other bypass valve.
3.Never exceed the maximum working pressure of the lowest rated system component. Remove the gauge if the flushing pressure will exceed the gauge range.
4.Open the fluid regulator fully.
a.Spring Operated Regulators Only (see Fig. 3). The regulator can be fully opened in two ways:
D Using the male end (B) of the regulator key (24), turn the
D Using the female end (A) of the regulator key (24), turn the adjustment screw (12) fully clockwise. You will have to reset pressure after flushing.
b.Air Operated Regulator Only. The regulator can be fully opened in two ways:
D Close the outlet valve at the air regulator and open the air regulator bypass valve, to supply air directly to the fluid regulator; do not exceed the maximum rated air pres- sure of the fluid regulator. Pressure setting of the fluid regulator will be retained using this method.
D Increase the air regulator setting to fully open the fluid regulator. You will have to reset the fluid regulator’s pressure setting after flushing.
5.Supply solvent to the system. Set pump to the lowest possible pressure, and start pump.
6.Flush until thoroughly clean.