OPERATION
3.4
PREPARING A NEW SPRAYER
If this sprayer is new, it is shipped with test fluid in the fluid section to
prevent corrosion during shipment and storage. This fluid must be
thoroughly cleaned out of the system with mineral spirits before you
begin spraying.
Always keep the trigger lock on the spray gun in the
locked position while preparing the system.
Attention
1.
Place the siphon tube into a container of mineral spirits.
2.
Place the return hose into a metal waste container.
3.
Set the pressure to minimum by turning the pressure control
knob to the "MIN" setting.
Pump OFF
RAPID
CLEAN
Rapid Clean
4.
Move the PRIME/SPRAY valve down to the PRIME position.
5.
Turn on the sprayer by moving the ON/OFF switch to the ON
position.
6.
Allow the sprayer to run for 15–30 seconds to flush the test fluid
out through the return hose and into the waste container.
7.
Turn off the sprayer by moving the ON/OFF switch to the OFF
position.
3.5
PREPARING TO PAINT
Before painting, it is important to make sure that the fluid in the system
is compatible with the paint that is going to be used.
Incompatible fluids and paint may cause the valves
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to become stuck closed, which would require
disassembly and cleaning of the sprayer's fluid
section.
Always keep the trigger lock on the spray gun in
the locked position while preparing the system.
Attention
1.
Place the siphon tube into a container of the appropriate solvent.
Examples of the appropriate solvent are water for latex paint or
mineral spirits for oil-based paints.
2.
Place the return hose into a metal waste container.
3.
Set the pressure to minimum by turning the pressure control
knob to the "MIN" setting.
8
4.
Move the PRIME/SPRAY valve down to the PRIME position.
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5.
Turn on the sprayer by moving the ON/OFF switch to the ON
position.
6.
Allow the sprayer to run for 15–30 seconds to flush the old solvent
out through the return hose and into the metal waste container.
7.
Turn off the sprayer by moving the ON/OFF switch to the OFF
position.
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8.
Move the PRIME/SPRAY valve up to the SPRAY position.
Pressure
Indicator
9.
Turn on the sprayer.
10.
Unlock the gun by pushing the gun trigger lock to the unlocked
Pressure
position.
Control Knob
11.
Trigger the gun into the metal waste container until the old
solvent is gone and fresh solvent is coming out of the gun.
12.
Lock the gun by pushing the gun trigger lock to the locked
position.
13.
Set down the gun and increase the pressure by turning the
pressure control knob slowly clockwise.
14.
Check the entire system for leaks. If leaks occur, follow the
"Pressure Relief Procedure" in this manual before tightening any
fittings or hoses.
15.
Follow the "Pressure Relief Procedure" in this manual before
changing from solvent to paint.
Hold the return hose in the waste container when
moving the PRIME/SPRAY valve to PRIME in case
the sprayer is pressurized.
Make sure that the spray gun does not have a tip or
tip guard installed.
Ground the gun by holding it against the edge of
the metal container while flushing. Failure to do so
may lead to a static electric discharge, which may
cause a fire.
Be sure to follow the pressure relief procedure
when shutting down the sprayer for any purpose,
including servicing or adjusting any part of the
spray system, changing or cleaning spray tips, or
preparing for cleanup.
IMPACT 640