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6
Operating Instructions and Parts Manual
Airless Paint Systems
www.chpower.com
Pre-Operation (Cont.)
NOTE: Do not use thread sealer on
swivel unions as they are made to self-
seal. Use thread seal on tapered male
threads only.
2. Fill the Packing Nut/Wet Cup 1/3
full with Throat Seal Oil (TSO)
supplied (see Figure 7).
3. Check the electrical service. Make
sure that the electrical service is 120
VAC, 15 amp minimum, and that
the outlet you are using is properly
grounded.
Make sure that all
sprayer
components, work pieces, spray
material containers, and electrical
outlets are properly grounded before
operating unit.
4. Flush the sprayer according to the
Flushing section (New Sprayer) and
How to Flush section.
SPRAY TIP SELECTION
See Tip Selection Chart on Page 7.
Spray tip selection is based on paint
viscosity, paint type, and job needs. For
light viscosity (thin paints), use a
smaller tip. For heavier viscosities
(thicker paints), use a larger tip size.
Spray tip size is based on how many
gallons of paint per minute can be
sprayed through the tip. Do not use a
tip larger than the maximum pump
flow rate or capacity the sprayer can
accommodate. Pump flow rate is
measured in gallons per minute (GPM).
!
WARNING
PATTERN WIDTH
Thickness of the paint coat is
determined by spray tip “fan width,”
rate of the spray gun movement, and
distance to surface.
SPRAY TIP SELECTION
Two tips having the same tip size, but
different pattern widths, will deliver
the same amount of paint over a
different area (wider or narrower
strip).
A spray tip with a narrow pattern
width makes it easy to spray in tight
places.
SPRAY TIP REPLACEMENT
During use, especially with latex paint,
high pressure will cause the orifice to
grow larger. This destroys the pattern.
Replace tips before they become
excessively worn. Worn tips waste
paint, cause overspray, make cutting-in
difficult, and decrease sprayer
performance.
Operation
STARTING UP
1. Learn the functions of the controls
(See How to Flush section,
Important Controls).
2. Prepare the material according to
the material manufacturer’s
instructions. Place the suction tube
into the material container.
Make sure gun is
pointed into empty
bucket at all times. Never point gun
toward people o r animals. Avoid
pointing toward dust and debris. Avoid
pointing toward other objects .
3. Start the sprayer as follows:
a. Prime/PR Valve must be “OPEN”
in the priming position.
b. Turn to the ON-OFF Toggle
Switch to the “ON” position.
To stop unit in an
emergency, turn
motor off. Then relieve fluid pressure
in pump and hose as instructed on
page 3.
!
WARNING
!
WARNING
4. Prime the pump.
a. Allow pump to operate until
paint comes from gun.
b. Release the trigger and engage
the gun safety latch.
c. Turn Prime/PR Valve OPEN to the
prime position ensuring the
pressure is released from the
system.
d. Turn Pressure Control Knob to
minimum pressure.
e. Install spray tip onto gun.
f. Close the Prime/PR Valve to the
pressure position.
g. Turn the pressure control knob
to desired spray pressure.
h. Disengage the gun safety lock
and you are ready to start
spraying.
If spraying into the
paint bucket, use
the lowest spray pressure possible and
maintain firm metal-to-metal contact
between gun and container as shown
in Figure 6.
5. Adjust pressure.
a. Turn Pressure Control Knob
clockwise to increase pressure and
counterclockwise to decrease it.
b. Always use the lowest pressure
necessary to completely atomize
the material.
Operating the
sprayer at higher
pressure than necessary wastes
material, causes early tip wear, and
shortens the life of the sprayer.
c. If more coverage is needed, use
a larger spray tip rather than
increasing the pressure.
d. Check the spray pattern. The tip
size and angle determine the
pattern width and flow rate.
6. If spray tip is clogged, clean only
after removing it from the gun.
To reduce risk of spray
injection, never hold
!
WARNING
NOTICE
!
CAUTION
Figure 7 - Applying throat seal oil
AL2710