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3 309990C
MPFHVLP SPRAY GUN
Setup
• Set shop air pressure regulator (not supplied) according to
paint manufacturer’s recommendation. See maximum air
and fluid pressures on cover.
• Make sure no air restrictions, such as low-volume cheater-
valves, obstruct the air flow. If an air adjusting valve is
desired, use a SHARPE Air Adjusting Valve 24AAV (part
no. 2210), 36AAV-HOV (part no. 3310) or HOV (part no.
U04410).
• Install a shutoff valve (not supplied) downstream of the air
regulator to shut off gun air.
• Install an inline air filter (not supplied) to clean and dry the
air supply to the gun.
1. Turn off air and fluid supply.
2. Connect a clean, dry, filtered air supply to gun air inlet (2).
3. Connect fluid supply line to gun fluid inlet (A).
4. If this is first time using the equipment, flush the spray gun.
Operation
Pressure Relief Procedure
1. Turn off gun air and fluid supply.
2. Trigger the gun to relieve pressure.
Flushing
Flush before using the equipment, before changing colors, and
when you are done spraying. Use solvent that is compatible with
gun wetted parts and fluid that will be sprayed. Flush at lowest
possible pressure.
1. Follow Pressure Relief Procedure.
2. Connect solvent supply to gun fluid inlet.
3. Spray into grounded metal waste container until equipment
is clean.
4. Follow Pressure Relief Procedure.
Spraying
1. Slowly adjust gun air pressure while fully triggering the gun
until you have the desired atomization.
2. Adjust the pattern size and shape with the spray width
adjustment knob (11). Turn knob clockwise to reduce pattern
size and counterclockwise to increase it.
3. Fluid control knob (7) is factory set for maximum needle trig-
ger travel and material flow. To decrease needle/trigger
travel and decrease fluid flow, turn knob clockwise.
FIG. 1
WARNING
Follow Pressure Relief Procedure when you stop spraying
and before cleaning, checking, or servicing equipment. Read
warnings, page 2.
2
A
11
7
WARNING
Read warnings, page 2.
Refer to Compliant Cleaning Methods, page 4, to com-
ply with air quality laws if applicable.
CAUTION
Excessive atomizing air pressure can increase over-spray,
reduce transfer efficiency, result in a poor quality finish
from dry spray.
Regulatory agencies in certain states prohibit the operation
of a spray gun above 10 psi (69 kPa, .7 bar) atomizing air
cap pressure.
See Troubleshooting guide if you experience an irregular
pattern.