Graco 214706 Instructions Manual page 6

Regulating Fluid Pressure
Spring Operated Regulator
1. Close the regulator: engage the internal hex (A) of
the key (24) with the adjusting screw (12) and turn
it counterclockwise to relieve the spring tension.
See Fig. 3.
2. Start the pump and open the fluid regulator's inlet
ball valve to admit fluid to the regulator. See Fig. 1.
3. Turn the key (24) clockwise to increase fluid pres-
sure. See Fig. 3. Adjust for the desired spray
pattern. Before reducing the regulator pressure,
partially relieve pressure in the gun hose to ensure
the correct gauge reading.
Air Operated Regulator
1. Start the pump and open the fluid regulator's inlet
ball valve to admit fluid to the regulator. See Fig. 2.
2. Increase the air pressure to obtain the desired fluid
pressure. before reducing the regulator pressure,
partially relieve pressure in the gun hose to ensure
the correct gauge reading.
NOTE: Make sure the air bleed hole in the air line
fitting (29) is not plugged. Refer to page 8.
For the best results, use an air regulator with at least a
two inch diameter diaphragm to control this fluid regu-
lator.
6
307212
Operation
Fig. 3
12
B
A
24