Startup; Operation - Graco 220-240 Instructions And Parts List

1. Place the suction tube in the pail of paint.
2. Plug in the sprayer.
3. Open the priming valve 2 turns counterclockwise.
4. Turn the ON/OFF switch ON.
5. You can see the paint being drawn into the suction
tube (if the tube is clean). As soon as you see paint
flow through the priming tube, close the priming
valve. This usually takes less than 30 seconds.
CAUTION
Failure to completely close the priming valve after
the system is primed will cause the valve to erode,
greatly shortening the valve life.
WARNING
To reduce the risk of electric shock, do not expose
the system to rain. Always store the system indoors.
CAUTION
Always allow cold equipment to warm to room tem-
perature before using to prevent damaging the sys-
tem. Always store the system indoors.
CAUTION
Do not use lacquer or lacquer thinner in the suction
and outlet hoses supplied with this system. These
fluids quickly destroy the hose material. Use the op-
tional chemical–resistant hoses.
See ACCESSORIES, page 17, for ordering optional
hoses.

STARTUP

NOTE: If your system is hard to prime, first try to force
feed the suction tube. Hold the suction tube in a
vertical position and pour paint into it. Turn on the
system. If the system does not prime within one
minute, shut it off. Heavy viscosity paint may
need to be thinned. Be sure to follow the paint
manufacturer's recommendations on thinning.
6. When the outlet hose and extension tube are fully
primed, the motor will run when there is paint de-
mand, but appears to shut itself off when there is no
paint demand.
NOTE: An occasional start and stop of the motor when
the roller valve is not triggered is normal.

OPERATION

1. With the system fully primed, trigger the roller valve
briefly until paint comes to the roller.
2. Experiment with triggering and rolling the paint until
you determine just how often you need to trigger the
roller valve to keep an even flow of paint to the roller.
3. To adjust the extension tube length, loosen the lock-
nut and extend or retract the tube. If retracting, some
paint in the tube will be pushed out to the roller. Roll
this excess paint onto the wall, or completely retract
the tube, drain the excess paint into a pail, and then
adjust the tube length. Tighten the locknut securely.
4. Whenever you stop painting, turn the ON/OFF
switch to OFF and trigger the roller valve. Elevate the
roller end of the tube to prevent paint from draining
out the roller end.
5. Flush the system thoroughly and immediately after
each use to keep it in good working order. See
page 6.
307–760