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FLUSHING
GUIDELINES
When to Flush
1.
New Sprayer. Your new UltraQ
400
Sprayer was
factory tested in lightweight motor'oil which was
5.
Storage.
left
in to protect pump parts. spirits and leave the pump, hose and gun filled with
Water
-
base paint: flush with water, then mineral
Before using water
-
base paint, flush with mineral
spirits, followed by soapy water, and then
a
clean
mineral spirits. Shutoff and unplug the sprayer,
open the drain valve to relieve pressure and leave
water flush.
Before using oil
-
base pain!, flush with mineral
open.
spirits only. and unplug the sprayer, open the drain valve to
Oil
-
base paint: flush with mineral spirits. Shutoff
2.
Changing Colors. Flush with*a compatible solvent
relieve pressure and leave open.
such as mineral spirits or water.
6.
Startup after storage.
3.
Changing from water-base
to
oil-base paint.
Before using water
-
base paint, flush out mineral
Flush with soapy water, then
minera1,spirits.
spirits with soapy water and then
a
clean water
flush.
4.
Changing from oil-base to water-base paint.
Flush with mineral spirits, followed by soapy water, spirits with the fluid to be sprayed and the sprayer is
When using oil
-
base paint, flush out the mineral
then
a
clean water flush. ready to use.
How to Flush
1.
Follow the Pressure Relief Procedure Warning
on page
6.
'
2.
Remove the filter bowl and screen; see manual
307
-
273
supplied. Clean the screen separately and
install the bowl without the screen.
FILTER
BOWL
SCREEN
MAINTAIN FIRM
METAL TO METAL
CONTACT WHEN
FILTER
SUPPORT
Fig
8
4
DRAIN VALVE
SHOWN OPEN
Fig
7
3.
Close the filter drain valve.
4.
Pour
2
liters
(112
gal.) of compatible solvent into a
bare metal pail. Put the suction tube in the pail.
Always remove the spray tip from the gun before
flushing to reduce the risk of
a
fluid injection in-
IWARNING1
5.
Disengage the gun safety latch.
6.
Point the spray gun into
a
grounded metal waste
container and with a metal part of the gun firmly
touching the metal container, squeeze the gun trig-
ger.
This procedure helps avoid static sparking
which can cause fire or explosion and splashing.
With the gun triggered, turn the ONIOFF switch to
clockwise
just
until
the sprayer starts. Keep the
ON
and slowly
turn
the pressure adjusting knob
gun triggered until clean solvent comes from the
nozzle. Release the trigger and engage the gun
safety latch.
7.
Check
all
fluid connections for leaks. If any leak,
follow the Pressure Relief Procedure Warning
on page
6.
Now tighten the connections, start the
sprayer, and recheck the connections for leaks.
8.
Remove the suction tube from the pail. Disengage
the gun safety and trigger the gun to force solvent
from the hose.
Do
not let the pump
run
dry for
more than
30
seconds to avoid damaging the
pressure control. Then turn ON/OFF switch
to
OFF and engage the gun safety latch.
9.
Unplug the power supply cord. Open the drain
valve and leave open until you
are
ready to use the
the clean screen. Reinstall the bowl, hand tight
sprayer again. Unscrew the filter bowl and reinstall
only.
10.
If
you have flushed with mineral spirits and are go-
ing to use
a
water-base paint, flush with soapy
water followed by
a
clean water flush. Then repeat
Step
1.
8
307-671