Matco Tools MTDPGHV8 Manual De Instrucciones página 3

OPERATION
Every Matco Spray Gun has passed our Quality Control and has been tuned for optimal performance. However, the results can vary due to other
factors (including but not limited to):
• Work environment cleanliness;
• Air Supply – sufficient, stable, low water content, etc;
• Paint- proper paint, viscosity etc;
• Air pressure- appropriate amount.
• Spraying distance
• Other factors.
Depending on those factors, the required atomizing air pressure, the material flow amount, and the round/flat spray pattern control must be set
accordingly to obtain the desired result.
1. It is recommended to use an air filtration system. Clean dry air improves both the work result and increases the life of your spray equipment.
2. The gun trigger has a 2-step mechanism. The first triggering point opens the air valve, and only air should flow through. When the trigger is
furthered squeezed, the paint material is flows from the nozzle due to gravity.
3. Use thinner to flush out the paint passageway thoroughly. This prevents clogging from dust and from prior work.
4. Pull the trigger and adjust the dynamic inlet pressure: Conventional High Pressure guns at 2.3~3.0 bar (33~43psi).
HVLP Low Pressure guns at 2.0 bar (29psi)
There are several ways to do it: (NOTE: The air adjusting valve set must be fully open for maximum efficiency.)
• Adjust the pressure using a micrometer directly connected to the air nipple.
• Without a micrometer, roughly set the required pressure from the source and compensate the pressure drop about 9psi higher per 10 meters.
5. Depending on painting requirement and the material used, keep the spraying distance within the range of 6 to 10 inches. First, test spraying
with the fluid control knob and pattern adjusting knob fully open.
• If the spraying is too fine, reduce the atomizing air pressure of allow more paint to flow through.
• If the spraying is too coarse, increase the atomizing air pressure or narrow the paint flow. Adjust the pattern width if necessary.
6. The proper position of the spray gun is critical for good finishing results.
• The spray gun should be held perpendicular to the surface being sprayed;
• Continue the motion in the horizontal direction;
• The stroke should start before the trigger is pulled, and then the trigger should be released before the stroke ends. This gives a more
accurate control of the spray gun, as well as the proper amount of material;
• To obtain a uniform finish, overlap the previous layer of paint by repeating the same stroke.
Coating will
Coating will
be light
be heavy
at this point
at this point
WRONG
Effective
Area
MODEL:
MTDPGHV8
MTDPGHV1
High Pressure 150mm (5in)~250mm (10in)
HVLP 125mm(5in)~200mm (8in)
Miniature 75mm(3in)~150mm(6in)
Start
stroke
In normal operation, the wings on the nozzle are positioned
horizontally as illustrated here. This produces a vertical fan
shaped pattern. The pattern is uniquely designed for overlap
efficiency (only 1/5 at top and bottom), and therefore saves
substantial amount of paint. (Switching the wings vertically
is NOT recommended.)
Page 3
GRAVITY FREED DETAIL
0.8 mm
HVLP SPRAY GUN
1.0 mm
Coating should be even and
wet when spraying
Procced
Pull
trigger
CORRECT
Pattern Adjusting Knob
Turn right for round/ Turn left for fan.
Capable for doing shapes from round to eclipse.
Fluid Control Knob
Turn right to decrease/ Turn left to increase.
A larger pattern width requires more material
to pass through to obtain an uniform coverage
on the increased area.
Release End
trigger stroke