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WARNING
INJECTION HAZARD
To reduce the risk of serious injury,
whenever you are instructed to relieve
pressure, follow the Pressure Relief
Procedure on page 7.
How to Flush
A
B
C
Fig. 7
1. Relieve pressure.
2. Remove the filter bowl (A), support (C) and screen
(B); see manual 307–273. Install the bowl and
support. Clean the screen separately and install
after flushing. See Fig 7.
3. Close the pressure drain valve.
4. Pour one–half gallon of compatible solvent into a
grounded metal pail. Put the suction tube in the
pail.
Flushing
5. Remove the spray tip from the gun, if it is installed.
6. Turn the pressure adjusting knob all the way coun-
terclockwise to lower the pressure setting.
7. Open the drain valve. Turn on the sprayer and
increase the pressure until until the sprayer starts.
When fluid comes from the valve, close it. Hold a
metal part of the gun firmly against a metal waste
container. Trigger the gun until all air is forced out
of the system and the solvent flows freely from the
gun. Release the trigger and engage the gun
safety latch.
firmly to the side of a grounded metal pail when
flushing.
50
8. Remove the suction tube from the pail. Disengage
the gun safety latch and trigger the gun to force
solvent from the hose. Do not run the pump dry for
more than 30 seconds to avoid damaging the
pump packings! Relieve pressure.
9. Leave the pressure drain valve open until you are
ready to use the sprayer again. If the screen was
removed, unscrew the filter bowl and reinstall the
clean screen. Reinstall the bowl, hand tight only.
10. If you flushed with mineral spirits and are going to
use a water–base paint, flush with soapy water
and then clean water. Relieve pressure.
WARNING
FIRE AND EXPLOSION HAZARD
To reduce static sparking and splashing,
always remove the spray tip from the
gun, and hold a metal part of the gun
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