Startup - Graco PT2500 Instructions And Parts List

CAUTION
The wallet sized warning card provided with the gun
should be kept with the operator at all times. The
card contains important information on reducing the
risk of a fluid injection injury, and treatment informa-
tion should an injection injury occur. Additional co-
pies of this card are available at no cost.
WARNING
Pressure Relief Procedure
To reduce the risk of serious bodily injury, including
fluid injection, splashing in the eyes or on the skin,
injury from moving parts, or electric shock, always
follow this procedure whenever you shut off the
sprayer, when checking or servicing any part of the
spray system, when installing, cleaning or changing
spray tips, and whenever you stop spraying.
1. Shut off the sprayer and unplug it.
2. Hold a metal part of the gun firmly to the side of
a grounded metal pail, and trigger the gun into
the pail to relieve pressure.
3. Engage the trigger safety lever.
4. Turn the bypass valve counterclockwise one
turn to drain paint back into the pail.
If you suspect that the spray tip or hose is complete -
ly clogged, or that pressure has not been fully re-
lieved after following the steps above, very slowly
loosen the tip guard retaining nut or hose end cou-
pling and relieve pressure gradually, then loosen
completely. Now clear the tip or hose obstruction.
1. Open the bypass valve ONE turn counterclock-
wise. Do not place the pump intake in the pail yet.
See Fig 3.
2. Turn the pressure control fully clockwise to increase
pressure. See Fig 3.
3. Remove the inlet strainer and place your hand over
the inlet valve to be sure it is drawing a vacuum.
NOTE: If the inlet valve is not drawing a vacuum, turn the
sprayer OFF. Turn the sprayer over. Press down
on the stem inside the inlet valve lightly with a
small screwdriver, and pour about a teaspoon of
mineral spirits or solvent into the valve. See Fig
4. Release the valve and turn the sprayer up-
right. With the pressure turned up, turn on the
sprayer. This should free any sticking parts in the
pump. Now check again for a vacuum. Shut off
the sprayer and install the inlet strainer.
4. Place the paint pump assembly into a properly pre-
pared 5 gallon pail of paint. (See Step 1, page 10.)
5. Turn the sprayer ON and allow the paint to circulate
through the bypass valve for one or two minutes.
NOTE: If the paint does not circulate back into the pail,
turn down the pressure and "jog" the motor on
and off several times to help prime the sprayer.
6. Turn the bypass valve clockwise (finger tight) to
close it; this allows the pump to build up pressure.

STARTUP

PRESSURE CONTROL
Counterclockwise
BYPASS VALVE
CLOSE
Clockwise
INLET STRAINER
Fig 3
STEM
PAINT PUMP
Fig 4
STARTUP PROCEDURE CONTINUED ON P AGE 12
OPEN
INLET VALVE
PUMP SHOWN UPSIDE DOWN
INCREASE
Clockwise