Graco Inc 308603 instruction manual Rev. G, GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN, Grounding

INSTRUCTIONS-PARTS LIST	308603
	Rev. G

Texture Flexhead and Pole Spray Guns

100 psi (7 bar) Maximum Air and Fluid Working Pressure

Model 238080, Series B

Texture Flexhead Spray Gun

Model 238807, Series B

Pole Spray Gun

WARNING

Pressure Relief Procedure		Working Pressure
To reduce the risk of serious bodily injury, including		To reduce the risk of component rupture and serious
electric shock and splashing fluid in the eyes, follow this		bodily injury, never exceed 100 psi (7 bar) AIR OR
procedure whenever you stop spraying.		FLUID WORKING PRESSURE to this gun. Do not
1.	Shut off the pump or sprayer.	exceed the maximum working pressure of any other
		component in the system.
2.	Trigger the gun.
3.	Open the gun air valve.	Fluid and Solvent Compatibility
4.	Disconnect the power source.	Do not use 1,1,1-trichloroethane, methylene chloride,
Grounding		other halogenated hydrocarbon solvents or fluids con-

To reduce the risk of electric shock, proper electrical	taining such solvents in this equipment, which contains
	aluminum and/or zinc parts. Such use could result in a
grounding is essential. See your separate pump or
	serious chemical reaction, with the possibility of explo-
sprayer instruction manual, and consult your local
	sion, which could cause death, serious bodily injury
electrical codes for detailed grounding instructions.
	and/or substantial property damage.

The standard gun adjustment is to adjust the air needle slightly behind the fluid tip. Fully open air valve (3), while adjusting needle valve (5) for the minimum air flow necessary for a good pattern.

Air bleeds from the gun nozzle whenever the gun air valve (3) is open. Close the valve to stop the air, if desired. Otherwise, it can stay open except during priming.

To prevent material surge at the beginning of a spray pattern, open valve (17) slowly while moving gun quickly.

Adjusting the spray pattern requires testing to balance the pump pressure and the air to the gun, and using the right tip size.

Spray Techniques

1.Test the spray pattern on cardboard. Hold the gun 18 – 30 in. (457 – 762 mm) from the surface. Use this spraying distance for most applications.

2.Adjust fluid pressure until material flow is adequate.

3.Adjust the gun air flow valve (5) to achieve a uniform, round spray pattern.

4.Consider the size of aggregate in the material and the coarseness of the spray pattern. Remember, the larger the tip, the heavier the pattern.

5.Overlap each stroke 50%.

6.A circular, overlapping pattern may give the best results, and is obtainable by grasping the flexhead

(2) and swinging the head around as the hose flexes.

7.Use appropriate procedure for your sprayer:

a.TexSpray EXT HP, Compact HP and Twin Tank EXT: Make sure air bleeds from the aluminum tube when there is material pres- sure.

b.RTX 1500:Turn air supply off when sprayer is not in use.

NOTE: Adjust fluid pressure to lowest pressure need- ed to maximize efficiency of gun adjustments.

GRACO INC. P.O. BOX 1441 MINNEAPOLIS, MN 55440–1441

ECOPYRIGHT 1996, GRACO INC.

Graco Inc. is registered to I.S. EN ISO 9001