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FLUSHING GUIDELINES
How to Flush
1 .
Follow the Pressure Relief Procedure Warning on
page 15.
2. Remove the filter bowl and screen; see manual
307-273, supplied. Clean the screen separately and
install the bowl without the screen to flush it. See
Fig
16-1.
FILTER
BOWL
SUPPORT
PRESSURE
DRAIN VALVE
Fig 1 6 1
3. Close the filter's pressure drain valve.
4. Pour one-half gallon (2 liters)
of compatible solvent
into
a
grounded metal pail. Put the suction tube in the
pail.
5. Remove the spray tip from the gun.
WARNING
To reduce the risk of static sparking and splashing,
a metal part of the gun firmly to the side
of and aimed
always remove the spray tip form the gun, and hold
into a grounded metal pail when flushing.
6. Disengage the gun safety latch. Point
the spray gun
into a metal waste container and with a metal
part of
the gun firmly touching the metal container, squeeze
the gun trigger. See Fig
16-2.
This procedure helps
the sprayer, trigger the gun and slowly
turn the pres-
reduce the risk of static sparking and splashing. Start
sure adjusting knob clockwise just until the pump
comes from the nozzle. Release the trigger and en-
starts. Keep the gun triggered until clean solvent
gage the gun safety latch.
7. Check all fluid connections for leaks. If any leak, first
follow the Pressure Relief Procedure Warning on
sprayer, and recheck the connections for leaks.
page 15. Now tighten the connections, start the
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 pump pack-
ings! Then follow the Pressure Relief Procedure
Warning on page 15.
9.
Leave the pressure drain valve open until you are
ready to use the sprayer again. Unscrew the filter
bowl and reinstall the clean screen. Reinstall the
bowl, hand tight only.
IO.
If you flushed with mineral spirits and are going to
use a water-base paint, flush with soapy water
fol-
lowed by a clean water flush. Then follow the Pres-
sure Relief Procedure Warning on page
15.
CONTACT WHEN
FLUSHING
Fig
1 6 2
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