Operating Instructions

 

 

 

Gravity Feed Spray Gun

Preparation

 

 

Adjust air pressure with the trigger

3. Turn fluid control knob fully

1. Thoroughly mix and thin paint

 

pulled and air control knob (if

clockwise until closed (See Figure 6)..

 

applicable) fully open.. If reduced air

4. Trigger a short burst while turning

in accordance with the paint

 

 

pressure is desired for some areas of

manufacturer’s instructions.. Most

fluid control knob counterclockwise..

the spray job, use the air compressor

materials will spray readily if thinned

Observe the spray pattern on the

regulator or air control knob to reduce

properly..

 

 

target and adjust the fluid control

 

 

pressure as necessary (See Figure 4)..

2. Strain material through cheese cloth

knob until the desired pattern

 

 

 

 

(atomization) is obtained (See

or a paint strainer..

 

 

 

 

 

 

 

 

Figure 7)..

 

3. Fill the canister about 3/4 full and

 

 

 

Air Control

 

 

 

 

start the air compressor..

 

 

 

 

 

 

Knob

 

 

 

 

4. Set up a piece of cardboard or other

 

 

 

 

 

scrap material to use as a target and

Increase

Decrease

 

 

 

adjust for best spray pattern..

 

 

 

 

 

Air Flow

Air Flow

 

 

 

 

 

 

 

 

 

5. Test the consistency of the material

Figure 4 - Air Adjustment on Spray Gun

Paint too

Correct

Paint too

by making a few strokes on a

 

 

 

 

cardboard target.. If material

 

 

 

fine

 

coarse

 

2. Set pattern size to desired shape.. For

 

 

 

still appears too thick, add a

 

 

 

 

 

full pattern, open pattern control

Figure 7 - Pattern Consistency

small amount of thinner.. THIN

 

 

knob by turning counterclockwise..

(Atomization)

 

WITH CARE!! Do not exceed

 

 

 

 

 

 

 

For a round pattern, turn pattern

 

 

 

paint manufactuer’s thinning

 

If the spray is too fine (excessive

recommendations..

 

 

control knob clockwise (See

overspray), caused by too much air for

Fan direction

 

 

Figure 6)..

 

the amount of paint being sprayed,

 

 

 

 

reduce the air pressure or open the fluid

 

 

 

Pattern control

 

The direction of the fan (horizontal or

 

control to spray more material..

knob

 

vertical) can be changed by loosening

 

If the spray is too coarse (spitting globs),

 

 

the lock ring and turning the air cap 90

 

 

 

 

reduce the amount of material with the

degrees (See Figure 3).. Hand tighten

 

 

 

 

fluid control knob or thin the paint..

lock ring after adjustment..

 

 

 

 

 

 

5. The fluid control knob can be used

Air Cap

 

 

 

 

 

 

 

Fluid Control

to finely adjust pattern consistency..

 

Horizontal Fan

 

 

 

Before spraying the workpiece, practice

 

 

Knob

 

 

 

 

 

 

 

 

 

a few minutes on a cardboard target to

 

 

 

Figure 6 - Pattern Size

 

ensure the pattern size and consistency

 

 

 

 

are set correctly.

 

 

 

 

 

 

 

Lock Ring

Vertical Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Vent Hole

 

 

 

 

 

 

 

Cup

 

Figure 3

 

 

 

 

 

 

 

Pattern Adjustment

 

 

Air Cap

 

Pattern Control

 

 

 

 

 

1. Adjust air pressure

 

40 psi

 

 

Knob (location

 

 

 

 

to the spray gun

 

Min.

 

 

 

depends on model)

 

 

 

 

 

 

 

according to the

 

60 psi

 

 

 

 

 

recommendations

 

Max.

 

 

 

Fluid Control Knob

 

 

 

 

 

supplied with the spray material..

Fluid Tip (Nozzle)

 

 

 

 

This air pressure usually falls

 

 

 

Air Valve

 

 

Fluid Packing Nut

 

 

between 40 - 60 psi..

 

 

Packing Nut

 

 

Trigger

 

 

 

 

 

 

1/4 inch NPS Air

Do not exceed

 

 

 

 

spray gun maximum

 

 

 

Inlet Fitting

 

pressure.

 

 

Figure 5 - Gravity Feed Spray Gun

 

 

 

 

 

 

 

 

 

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