Operating Instructions and Parts Manual

Setup (continued)

NOTICE: Some latex finishes are very

b. Estimate the time interval between

6. Install the appropriate needle/nozzle

thick and require the greatest amount

each of the first three drips of

of thinning and mixing. A latex paint

material. The time between the

assembly selected for the material to

conditioner can be added to the

first three drips of material will vary

be sprayed (Fig. 2, 3 & 4 ).

paint to improve spray performance

depending on the thickness or the

7. Reassemble the needle assembly,

(available at most home centers).

“viscosity” of the material.

spring, material control knob,

1. Strain paint before spraying.

c. The material is adequately thinned if

nozzle, air cap, and retainer ring.

Unstrained paint may affect

the first three drips from the viscosity

 

ADJUSTING PACKING

material flow and spray pattern.

stick are about one second apart.

Occasionally the packing nut, located

When spraying thin materials such

 

forward of the trigger assembly, will

as lacquer or stains, consult with

d. As a general rule, if the time

require adjustment. The packing nut

the material supplier for the proper

between drips is more than one

will also require adjustment when the

strainer mesh number.

second, the material is too thick.

needle/nozzle assembly is changed

2. Pour material into the paint cup.

Add thinning agent, stir thoroughly

(Figure 6).

Fill the material cup only 1/2 to 3/4

and repeat the above procedure

1. Turn the material flow control knob

full if thinning of the material is

until the proper viscosity is attained.

clockwise at least 3/4 of the way in.

required. (See Figure 7). Refer to

 

2. Tighten the packing nut with

the material chart below for proper

Viscosity Stick (Located

the wrench by turning the nut

thinning instructions.

Inside The Storage

clockwise until the needle will

 

 

Compartment)

not return to the closed position

 

 

 

when the trigger is released. Do

 

 

not overtighten the packing nut.

 

 

To properly adjust the packing, the

 

 

nut should be tightened no further

 

 

than is required to stop the needle

 

 

from returning. (See Figure 6).

 

 

Material Flow

 

 

Figure 8 - Viscosity Stick

Control Knob

Figure 7 - Filling The Paint Cup

 

 

4. To tighten and lock the cup, place

 

 

 

 

NOTICE

Follow the

the retainer arms securely around

 

material

the retaining pins on the paint cup.

 

manufacturer’s recommendation for the

5. Move the locking lever clockwise to

Tighten

proper thinning solvent.

the locked position. (See Figure 9).

 

3. Using the following procedure,

Packing

 

check the viscosity of the material

 

Nut

Locking Lever

before locking the gun onto the

 

 

 

material cup (Figure 8).

 

Figure 6 - Adjusting The Packing Nut

NOTICE

The viscosity stick

Retaining Arm

is located in the

 

 

3. Loosen the packing nut (approx.

storage compartment.

 

1/4 turn) until the needle returns

a. Dip the viscosity stick into the

Retaining Pin

freely to the closed position.

 

material. As the viscosity stick is

 

Preparation

 

removed from the material, the

 

PREPARING TO SPRAY

material will initially run off the stick

 

Some manufacturers specify that their

as a stream. The material stream will

Figure 9 - Locking The Cup

materials should not be thinned. In

break up and begin to drip after

general, these instructions apply only

running off the stick for a short time.

 

when a brush or roller is used. It may

 

 

 

be necessary to thin these materials if

 

 

 

they are to be sprayed. Check with the

 

MATERIAL

PERCENT REDUCED

paint supplier for specific details when

 

 

 

 

purchasing the material to be sprayed.

Acrylics

Follow Manufacturer’s Instructions

Be sure to stir the material thoroughly

Stains

No Thinning Required

after adding a thinning agent, and

Clear Sealers

No Thinning Required

before checking the viscosity. Failure to

Lacquers

Follow Manufacturer’s Instructions

properly mix the material results in a

Oil-Base Paint

10 - 40%

poor finish.

Latex Paints

15 - 20%

 

 

 

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Campbell Hausfeld IN206701AV, HVLP, HV2002 Preparation, Adjusting Packing, Preparing to Spray, Material Percent Reduced