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DESCRIPTION
The TGC-500-2 cup is used in applications where
agitation of material in the spray gun cup is required to
prevent the settling of pigments and solids in the paint
during application. An air turbine mixing blade lifts
pigments and solids from the bottom of the cup and
keeps it in suspension.
An air regulating valve on the turbine air line regulates
the speed of the turbine to control the mixing action.
An air adjusting valve is also supplied at the gun air
inlet to control spray gun nozzle atomization.
INSTALLATION
Attach fluid connector (25, Figure 1) to spray gun fluid
inlet Make sure tube is attached to the gun with the
tube bend out and away from the gun to allow room for
the cup.
Attach lower end of fluid connector to fluid outlet on
cup housing (24).
Attach air adjusting valve to gun handle so that the
valve air line fitting is on the left side of the gun handle.
Attach air line (9) to fittings. The assembled gun and
cup should appear as shown in Figure
1.
OPERATION
Risk of damage to shaft and seal. Do not oper-
ate the turbine without material in the cup.
Fill the cup with paint reduced to spray viscosity. The
full level is about
i
inch from the top, or just below the
area where the cup starts to bell out
Attach the cup to the spray gun. Make sure turbine air
regulator valve (17) is turned off (all the way in) and
connect the air supply line to the gun.
Note
Spray guns with an agitator cup require higher air
line pressure. Spray gun nozzle air (atomization)
is regulated by the air adjusting valve (
i
2) instead
of air line pressure when using the cup.
With the gun and cup in an upward position, open
turbine air valve until the required amount of agitation
(mixing speed) is obtained.
The mixing speed is
determined by the amount of paint in the cup, paint
viscosity, and air pressure used. Do not operate tur-
bine without material in the cup.
Approximately 3 minutes is needed to completely mix
a full cup of paint.
Check for leaks from the cup and fittings by holding the
gun and cup in a horizontal position w1th the mixer on.
If a leak occurs, tighten cup, or turbine air valve
packing slightly.
Spray in the normal manner. Should the mixing slow
down considerably, or stop when the gun is triggered,
increase the air line pressure at the main air regulator
for the gun.
Fluid
Connector
(25)
Cup
Housing
(24)
Impeller
Shalt (1
Impeller
~ft:;;;~:::;;;~
Blade (20)
Figure 1
Note
SB-4-394-C PAGE 3
Spray Gun
(Not Included)
Air Adjusting
Valve
(i
2)
Paint
Cup (21)
Should the texture of the applied finish have too
much orange peel or appear too dry, further reduc-
tion of paint may be necessary. This is caused by
the total blending of the paint due to the mixing
action of the cup.
CLEANING
After use, pour, a small amount of paint solvent into the
cup. Attach the cup to the spray gun and turn the air
turbine on (adjust turbine air regulator valve).
Shake the gun and cup up and down and trigger the
gun to clean all fluid passages.
With the air turbine on, turn the gun upside down, turn
the air turbine off. With the gun still turned over de-
press the ball and allow paint solventto run through the
vent passages.
To prevent excessive wear to shaft and
shaft sea!, clean cup as indicated below.
Wear to the seal can cause paint leakage.
When cleaning the cup, it is very important to clean all
paint residue from shaft seal and shaft area. Failure to
clean all paint residue will allow paint to harden. Once
hardened, the paint will cause abrasion and wear
between the rotating shaft and seal.
If
worn, paint can
leak from cup (thru air holes on the cover assembly (3)
if
cup is tipped at an angle while spraying.
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