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How
to Flush
1. Follow the Pressure Relief Procedure Warning on
page 15.
2 . If the sprayer has been used before, remove the filter
bowl and screen;
see
manual
307-273,
supplied.
Clean the screen separately and instali the bowl
without the screen to flush
it. See F;g
1 6 7 .
PRESSURE
/
DRAIN VALVE
Fig
1&1
3. Close the pressure drain valve
4.
Pour onehalf gallon (2 liters) of compatible solvent
pail.
into agrounded metal pail. Put the suction tube in the
5. Remove the spray tip from the gun.
if it is installed.
i
W
A
R
N
I
N
G
1
To
reduce the risk of static sparking and splashing,
always remove the spray tip form the gun. and hold
ametalpartofthegunfirrnlytothesideofandairned
into a grounded metal pail when tlushing.
7. Hold a metal part of the gun firmly against and aimed
,
into a metal waste container. See Fig
16-2.
Squeeze
the trigger and hold
it
open, turn the ONIOFF switch
to ON, and slowly increase the pressure setting until
the sprayer starts. Keep the gun triggere.d unlil all air
is forced out of the system and the solvent flows
thegun safetylatch. This procedure helpsreduce the
freely from the gun. Release the trigger and engage
risk of static sparking and splashing.
NOTE: If the pump is hard to prime. place a container
When fluid comes from the valve. close
it.
Then
under the pressure drain valve and open
it.
disengage the gun safety latch and proceed as in
Step 7, above.
8.
Remove the suction tube from the pail. Disengage
the gun safety latch and trigger the gun to force sol-
vent from the hose. Do not let the pump run dry for
packings! Then follow the Pressure Relief Proce-
more than 30 seconds to avoid damaging the pump
dure Warning on page 15.
9. Leave the pressure drain valve open until you are
ready to use the sprayer again. If the screen was re-
screen. Reinstall the bowl, hand tight only.
moved, unscrew the filter bowl and reinstall the clean
10. 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.
6. Lower the pressure setting by turning the pressure
Fig 1 6 2
adjusting knob all the way counterclockwise.
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