Replacement Part List

7
HVLP Paint Sprayers
Operating Instructions and Parts Manual
www.chpower.com
HV2100, HV2105
fan type (see Spray Gun Diagrams),
opening the material flow knob
counterclockwise and moving the spray
gun closer or further away from your
work piece. A little practice will enable
you to master this technique.
PRACTICE: Practice using your spray
gun by following these steps:
1. Remove the cup from your spray
gun. Fill it halfway with some
water.
2. Attach the cup to the body of the
spray gun.
3. Attach the spray gun to the air
hose.
4. Turn the turbine unit on.
5. You will notice air is now flowing
through the air cap. This is normal
and correct.
6. Position the air cap in the
horizontal position (see Figure 2)
and turn the material flow knob
counter clockwise approximately 1
to 1-1/2 turns.
7. Point the spray gun away from
yourself (and anyone else) and pull
the trigger all the way back. You
should see a “V” shaped mist (or
triangle) called a fan pattern.
8. Now, with the trigger depressed,
slowly begin to turn the material
flow knob clockwise (closing).
Notice that the fan pattern is
beginning to get smaller.
9. Turn the material flow knob
counterclockwise and notice the
pattern get larger.
10. Take a large piece of cardboard and
direct the pattern at the surface.
Turn the material flow knob 2 full
turns and hold the spray gun
approximately 6" from the surface.
11. Pull the trigger. Observe the outline
and size of the pattern.
12. Turn the material flow knob
clockwise (closing). Move the spray
gun 1-2” closer to the surface.
Operation (Cont.)
13. Pull the trigger. Notice the pattern
has become smaller. (You can
continue reducing the material
flow and move the spray gun even
closer to the surface and the
pattern will keep getting smaller).
14. Rotate the air cap to a diagonal
position (See Figure 2).
15. Every so often, turn the material
flow knob to a different position.
Also, change the distance of the
spray gun from work surface. Notice
how doing this changes pattern size.
There is one additional control to
know. If you loosen the air cap locking
ring, approximately 1-2 turns, you can
control the fan pattern size and trim or
feather the edge of the fan pattern
itself. This should be considered a
secondary control, the primary fan
pattern size being adjusted between
fluid flow and distance of the spray
gun from the work piece.
!
WARNING
Even when the turbine is turned off,
pressure will remain in the spray cup.
When trigger is pulled back, a stream
of fluid will flow. To prevent accidents,
turn material flow knob clockwise until
it is completely closed, locking trigger
in closed position.
NOTE: It is not necessary to empty and
clean your spray gun when you pause
between applications. Be sure,
however, to clean your spray gun
thoroughly at the end of your work
session.
Clean spray gun
NOTICE
thoroughly at end
of work session. Do
not allow coating to dry in spray gun
overnight or at any time when not in
use.
Extra caution should be taken when
spraying coatings that have a catalyst
or hardener added since many of these
coatings have short pot life. These
coatings can harden in your spray gun
quickly, making cleaning difficult or
impossible. Read manufacturer’s
coating instructions to help determine
how quickly a particular coating will
harden in your spray gun.
SPRAYING TECHNIQUE
Practice is the key element in achieving
a proper spray technique. Never try to
rush the spray finishing process. Learn
the properties of the coating you will
be spraying. Build up layers of material
(3-4 applications, or more if needed).
Sand between coats, if needed, and
allow proper drying time between
applications.
Remember to keep the distance of the
spray gun the same when moving
across your work (called a “pass”). Do
not rotate or turn your wrist from side
Figure 3 - Proper Spray Technique