Graco Inc. 307-712 Paint Sprayer User Manual


 
11
307-712
MAINTENANCE
Daily Care and Cleaning
CAUTION
Clean all parts with a non–conductive solvent,
compatible with the fluid being sprayed. Conduc-
tive
solvents can cause the gun to malfunction.
Do
not use any cleaning method which may al
-
low
solvent into the gun air passages.
Solvent
left
in
the gun passages could result in a poor qual
-
ity paint finish and may draw current and reduce
the electrostatic effect. Point the gun down while
cleaning
to prevent dirty solvent from running back
into the air passages. NEVER IMMERSE THE
GUN
IN SOL
VENT.
WARNING
For
your safety
, always follow the
Pressure
Relief
Procedure Warning on page 9 when shutting off
the system, when you stop spraying, and before
checking, servicing, installing, cleaning or chang-
ing
any part in the system.
1.
Clean the fluid and air line filters daily
.
2. Check
all of
the work hangers for build-up of material;
clean
them, if necessary
.
3. All loose or ungrounded objects must be removed
from
the spray booth.
4. Clean the outside of the gun daily with a soft cloth
dampened
in a compatible solvent.
5. Flush
the spray gun before changing fluids or colors
and
whenever you are
done operating the gun. See
Flush
the Spray Gun
.
6. Check
the
electrode wire. Straighten if bent, and re
-
place if broken or damaged. See Electrode
Replacement.
7. Clean the air cap and spray nozzle daily, minimum;
some applications require more frequent cleaning.
Replace
the
spray nozzle and air cap if they are dam
-
aged.
See
T
o Clean or Change Air Cap and Fluid
Nozzle.
Flush the Spray Gun
WARNING
To
reduce the risk of fire or explosion and
serious
bodily injury, the turbine air (electrostatics) must
be
of
f before flushing.
1. Follow
the
Pressure Relief Procedure W
arning
on
page
9.
2.
Disconnect and plug the fluid line.
3.
Connect the solvent supply to the gun.
4.
Flush the gun with solvent until it is clean.
5. Follow the Pressure Relief Procedure Warning,
then
disconnect the solvent supply
.
6.
Reconnect the fluid supply line.
8.
Actuate the gun until it is clear of solvent.