Operation
4
3A0293H
Operation
Pressure Relief Procedure
1.
Lock the gun trigger safety.
2.
Close all bleed-type master air valves, including the
bleed-type master air valve (3), supplied in your sys-
tem.
3.
Turn the regulator T-handle all the way counter-
clockwise if you are removing the air filter/regulator
(1) bowl, or servicing the air filter/regulator.
4.
Open any fluid shutoff valves.
5.
Unlock the gun trigger safety.
6.
Hold a metal part of the gun firmly to the side of a
grounded metal pail, and trigger the gun to relieve
pressure.
7.
Lock the gun trigger safety.
8.
Open any fluid drain valves (required in your sys-
tem), having a container ready to catch the drain-
age.
9.
Leave the drain valve(s) open until you are ready to
spray again.
If you suspect that the spray tip or hose is completely
clogged, or that pressure has not been fully relieved
after following the steps above,
very slowly
loosen the
tip guard retaining nut or hose end coupling and relieve
pressure gradually, then loosen completely. Now clear
the tip or hose.
Adjusting the Air Regulator
1.
To increase
the regulated air pressure, turn the
T-handle
clockwise.
2.
To decrease
the regulated air pressure, turn the
T-handle
counterclockwise.
3.
To lock the regulator setting, tighten the jam nut.
4.
Slowly open the air filter/regulator (1). Use the fil-
ter/regulator to control pump speed and fluid pres-
sure. Always use the lowest air pressure necessary
to get the desired results. Higher pressures cause
premature tip and pump wear.
Use the bleed-type master air valve (3) to relieve air
trapped between it and the pump when the valve is
closed. This helps reduce the risk of serious injury,
including fluid injection and splashing of fluid in the
eyes or on the skin, and injury from moving parts if
you are adjusting or repairing the pump.