www.aristospray.com
9
50/50 mixture of mineral spirits and
motor oil.
CAUTION: Never leave water in the
pump for more than about a day. Flush
with mineral spirits.
How to Flush
1. Place the suction tube/suction hose in
a flushing bucket filled with clean
flushing fluid: either mineral spirits (for
oil-based materials), lacquer thinner
(for lacquers), water (for water-based
materials), or soapy water (for
converting from oil-based to water-
based materials).
2. Separate the drain tube from the
suction tube (if they are clipped
together) and place it in an empty
waste bucket.
3. Open the priming valve.
4. Ensure that the unit is turned off and
the pressure control knob is at the
minimum (anticlockwise ) setting. Plug
the unit in.
5. Turn the unit on.
6. Turn the pressure control knob
clockwise to increase the pressure just
enough to let the pump run.
7. Allow the pump to run and watch the
fluid discharging from the drain tube.
Allow the fluid to discharge until
completely clean flushing fluid is
coming out. The hose and gun also
need to be flushed when changing
colors or when switching between
different types of materials/paints:
8. With the tip and tip guard removed
from the gun, point the gun into the
waste bucket and hold the trigger
open.
WARNING: Risk of static sparking,
fire or explosion Hold the metal
part of the gun firmly to the side of
a metal pail. All solvent pails must
be conductive metal material and
properly grounded. Do not place
on a non conductive insulating
surface unless a ground wire is
added to a true earth such as a
metal water pipe.
9. Close the priming valve.
10. Allow the pump to run and watch the
fluid discharging from the gun. Allow
the fluid to discharge until completely
clean flushing fluid is coming out.
WARNING: Do not release the gun
trigger during this process. If you
release the trigger, pressure will
build in the line and when you re-
squeeze the trigger there will be a
splashback hazard.
11. Then turn the unit off and turn the
pressure control knob anticlockwise
back to the minimum setting. Then
unplug the unit.
The pump is now clean and ready to
be primed with material.
PRIMING
This is a high pressure pump and all air
and unwanted fluids must be bled out of
the pump and lines before spraying can
begin.
Ensure that the tip and tip guard are
removed from the gun and the trigger is
locked.
To prime
1. Place the suction tube in the material
bucket.
2. Place the drain tube in a waste bucket
and open the priming valve.
3. Ensure that the pressure control knob
is in the minimum position and the unit
is switched off. Plug the unit in and
turn it on.
4. Slowly turn the pressure control knob
clockwise to increase the pressure just
enough to let the pump run.
