Harbor Freight Tools 91772 Preparing the Object to be Painted, Preparing the Spray Gun

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ASSEMBLY AND OPERATING INSTRUCTIONS (continued)

Refer to the Assembly Drawing on page 15 and FIGURE 1 on page 10.

Checking the Paint Viscosity

When using a HVLP (low pressure and high volume) spray gun the paint must be thinned to the proper viscosity. Viscosity indicates whether the material is very liquid (low viscosity) versus very thick (high viscosity). Viscosity is measured in the seconds it takes for the paint to flow through the viscosity meter (DINs). Ask your paint sales repre- sentative, check the paint container, or contact the manufacturer to find the paint’s viscosity value.

Note: For use only with paints, never use textures or other materials. This Sprayer can use paints with viscosity values between 10 to 14 DINs. Most commonly used paints fall within this range and will not need to be thinned. Always check the viscosity of the material before using it in this Spray Gun.

To measure the viscosity of your paint, you will need the Viscosity Cup (33), a small container, and a timepiece with a second hand. Fill the Viscosity Cup (33) with paint (holding it over the container), and immediately begin to time how long it takes the Viscosity Cup (33) to empty. The time it takes to empty the Viscosity Cup (33) is the viscosity of the paint. If the paint is outside of the range (10-14 DINs), take the appropri- ate measures to thin it (see manufacturer’s instructions).

Preparing the Object to be Painted.

1.Thoroughly clean the object or area that you are painting. Remove any old paint, scaling, or rust from the surface.

2.If necessary, make the surface smooth (using sandpaper).

3.Read the instructions on the paint can to determine whether or not you need to apply a fixative/adhesive to the surface to save paint.

Preparing the Spray Gun

1.After making sure the paint is the proper viscosity, thoroughly mix the paint.

2.Remove the Cup Cover (19) (twist counterclockwise) and fill the Paint Cup (24) to just below the top.

3.Replace the Cup Cover (19). Twist clockwise.

4.Connect the Spray Gun to the Spiral Air Hose (46) by snapping it into place. All connections snap into place as illustrated in FIGURE 2 below.

FIGURE 2

Motor Unit

FIGURE 3

Spray Gun or Inflator

Attaching Gun Tray

Gun Tray (41)

Spiral Air Hose (46)

REV 11/065

SKU 91772

For technical questions, please call 1-800-444-3353.

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Contents For technical questions, please call 91772Work Area Product SpecificationsGeneral Safety Rules Save this ManualPersonal Safety Electrical SafetyTool USE and Care Service Specific Safety RulesREV 11/06 Grounded Tools Tools with Three Prong Plugs GroundingSee Figure C Extension CordsDouble Insulated Tools Tools with TWO Prong Plugs See Figure C, nextExtension Cord Length SymbologyUnpacking Assembly and Operating InstructionsPreparing the Spray Gun Preparing the Object to be PaintedTroubleshooting INSPECTION, MAINTENANCE, and Cleaning Please Read the Following Carefully Parts ListAssembly Diagram