Graco 214706 Instructions Manual page 5

CAUTION
D The new system must be cleaned and tested
thoroughly before admitting fluid to the regulator
to avoid contaminants clogging or damaging the
regulator.
D Always 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
INJECTION HAZARD
Fluid under high pressure can be in-
jected through the skin and cause
serious injury. To reduce the risk of an
injury from injection, splashing fluid, or moving
parts, follow the Pressure Relief Procedure
whenever you:
D are instructed to relieve the pressure,
D stop spraying,
D check or service any of the system equipment,
D or install or clean the spray tip.
1. Shut off the pump.
2. Close the fluid regulator's inlet ball valve. Refer to
Fig. 1.
3. Relieve fluid pressure in the fluid regulator by
triggering the spray gun.
Operation
Flushing Procedure
1. Flush the regulator with a compatible solvent
whenever the rest of the system is flushed.
2. Remove the gauge if the fluid pressure will exceed
the gauge range.
3. Spring Operated Regulators Only
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Shut off the
pump and relieve fluid pressure in the system
by opening the back pressure valve or other
bypass valve. See Fig. 1.
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Turn the
external hex (B) of the adjusting key (24)
counterclockwise to open the regulator valve.
See Fig. 3.
4. Air Operated Regulator Only
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Make sure the
air pressure going to the regulator is shut off
and any air pressure in the line is relieved.
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3.Make sure the
air bleed hole in the air line fitting (29) is not
plugged. See Fig. NO TAG.
5. Flush until thoroughly clean. Always use the lowest
possible pressure when flushing.
6. Spring Operated Regulators Only
a. After flushing, turn the key (24) clockwise to
the previous setting. See Fig. 3..
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