ASSEMBLY
1
Attach the hose to the pump and tighten with a wrench.
2
Attach the hose to the gun and tighten with a wrench.
OPERATION
1 New sprayer / before you start
Your sprayer was factory tested in an oil solution which was left in the pump.
Before using oil-base paint, flush with pump conditioner only. Before using
water-base paint flush with pump conditioner, followed by soapy water, then
a clean water flush.
2 Changing colours
Flush with a compatible solvent such as pump conditioner or water.
3 Changing from water-base to oil-base paint
Flush with soapy water, and then pump conditioner.
PRESSURE RELIEF PROCEDURE
IMPORTANT! To avoid possible serious body injury, always follow this
procedure whenever the sprayer is shut off, when checking it, when
installing, changing or cleaning tips and whenever you stop spraying.
1
Engage the gun safety latch.
2
Turn the unit off and unplug it from the electrical outlet.
3
Disengage the gun safety latch and trigger the gun to relieve residual fluid
pressure. Hold metal part of the gun in contact with grounded metal pail.
4
Turn the Priming Valve to the open (priming) position to relieve residual
fluid pressure.
5
Re-engage gun safety latch and close Priming Valve.
If the SPRAY TIP OR
HOSE IS CLOGGED, follow Step 1 through 5 above. Expect paint splashing
into the bucket while relieving pressure during Step 4.
14
QTech
QT190 Airless Sprayer
FLUSHING
WHEN TO FLUSH
1
Cleanup
(for further instructions see “cleanup” below)
2
Changing from oil-base to water base paint.
Flush with pump conditioner,
followed by soapy water, then a clean water flush.
3 Storage.
Always relieve pressure (See pressure relief procedure above) prior
to storage or when machine is unattended.
Oil-base paint:
Flush with pump conditioner. Ensure that there is no pressure
in the unit, then close the priming valve.
Water-base paint:
Flush with water, and then pump conditioner.
For longer term storage fill with pump conditioner.
Always ensure that there is no pressure in the unit, and close the prime/
pressure relief valve for storage.
4 Start-up after storage
. Before using water-base paint, flush with soapy water
and then with clean water. When using oil-base paint, flush out the pump
conditioner with the material to be sprayed.
HOW TO FLUSH
1
Be sure the gun safety latch is engaged and there is no spray tip in the gun.
2
Pour enough clean, compatible solvent into a large, empty metal pail to fill
the pump and hoses.
3
Place the suction tube into the pail.
4
Turn the Priming Valve to the ‘Open’, priming position.
5
Point the gun into the metal pail and hold a metal part of the gun
firmly against the pail.
To reduce the risk of static sparking which can cause
fire or explosion, always hold a metal part of the gun firmly against the
metal pail when flushing. This also reduces splashing.
Disengage the gun
safety latch and squeeze the gun trigger. Turn the ON/OFF Toggle Switch to
the "ON" position and turn Pressure Control Knob clockwise to increase
pressure just enough to start the pump.
6
Close the priming valve. This will allow solvent to be flushed through the
pump, hoses and gun. Allow the unit to operate until clean solvent comes
from the gun.
7
Release the trigger and engage the gun safety latch.
8
Whenever you shut off the sprayer, follow the
PRESSURE RELIEF
PROCEDURE.
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