SPRAY GUN USER GUIDE
NO PAINT (OR VERY LITTLE PAINT)
The air passing through the Pressure Tube 10-2000/10-2001 to pressurize the cup
is blocked. This means that either the tube itself, the check valve, or one of the two
nipples are blocked. A pipe cleaner can be used for cleaning the hole in the nipple.
+
Pressurizing tube and/or nipples are blocked - COMMON
+
The cup is not tightened down sufficiently or the cup lid
gasket is worn and
leaking air
+
The cup is empty
+
The metal fluid tube is blocked with paint - RARE
+
The fluid coupler is blocked with paint - RARE
UNEVEN SPRAY PATTERN
One of the holes in the air cap may be blocked. Or, the paint could be dirty and
is partially blocking the fluid nozzle. Remove the air cap
and clean by soaking in
solvent and using the soft bristle brush or a rag.
NEVER
use metal objects to clean
holes in the air cap.
LEAKAGE
If paint material comes out of the fluid nozzle
without
pulling the trigger.
+
The needle is not seating in the fluid nozzle properly
+
The needle packing may be too tight preventing the
needle from moving
-
see page 18 needle packing
+
Foreign matter trapped between needle and fluid nozzle
+
The needle or fluid nozzle could be damaged or worn
+
Loose fluid nozzle
+
Wrong fluid nozzle size installed
CUP LEAKS
+
Oil above and below the lever to smooth the lever action
+
Change gasket/diaphragm
+
Leak around nipple - use Loctite to seal
+
Leak around side pins - use Loctite to seal
+
Leak through lid - remove nut under lid - use Loctite
QTech
HVLP Turbine
16
THE TRIGGER IS SLUGGISH
+
The Needle Packing is too tight - see LEAKAGE FROM THE NEEDLE
PACKING NUT page 18
+
Bent Needle
POOR SPRAY PATTERN
+
Damaged needle or nozzle
+
Nozzle is clogged
+
Air holes in air cap clogged
+
Gun too far from surface (max. 8”/20cm)
PAINT AT THE AIR NOZZLE HOLES
+
The fluid nozzle is loose and material is leaking around it - tighten with
the supplied wrench
+
Paint is entering the gun via pressure tube and being blown through the
barrel to the air cap
GUN SPRAYS IN A PULSATING MANNER
+
The needle packing has worn a little or is loose. Tighten.
+
The cup is almost empty
+
The cup lid is not tight - air is escaping
+
The clear plastic pressure tube is leaking air - replace
+
The pressure tube and/or nipple is clogged - clear or replace
EXCESSIVE OVERSPRAY
+
The spray pattern size is too large for the item being sprayed
+
The gun is being held too far away - should be 8” max. (20cm)
+
Trigger on and off as you pass over the edges of the item
+
The ‘paint’ is too thin - try thinning less
+
Reduce the air by turning the air control valve to the point where overspray is
minimized but the finish still looks good
+
For ideal and comfortable spraying conditions, you should install an extraction
fan.* If you are spraying a flammable, combustible product such as nitro
cellulose lacquer, you must install an explosion-proof fan
Please check with the Local Authority having jurisdiction on this matter.
Aristospray
.com
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