Graco 245924 A Series Guide

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441

www.graco.com

309584H

Operation and Parts

Texture Gun & Hopper

- For Water-Based Materials Only -

Model 245924 Series A, B, and C

100 psi (7 bar, 0.7 MPa) Maximum Working Air Pressure

60 psi (4.1 bar, 0.41 MPa) Maximum Working Fluid Pressure

Related Manuals

Read warnings and instructions.

309585

309586

ti2620a

ti 2445b

2 309584H

WARNINGS

Equipment Misuse Hazard

Equipment misuse can cause equipment to rupture, malfunction, or start unexpectedly and cause

serious injury.

• Before operating this equipment, read all manuals, tags, and labels including material labels and

instructions.

• Do not expose system to rain. Always store system indoors.

• Do not alter or modify equipment.

• Do not spray cementcious materials.

• Do not exceed maximum working pressure of lowest rated component in your system.

• Check equipment daily. Repair or replace worn or damaged parts immediately.

• To reduce risk of serious injury, including electric shock and splashing fluid in eyes, follow Pressure

Relief Procedure, page 3 before servicing the unit.

• Do not use hoses to pull equipment.

• Route hoses away from traffic areas, sharp edges, moving parts and hot surfaces. Do not expose

Graco hoses to temperatures above 130 F (55 C) or below -35 F (-37 C).

• Store hazardous fluid in an approved container. Dispose of hazardous fluid according to all local,

state and national guidelines.

• Never directly inhale compressed air. Compressed air may contain toxic vapors.

Electric Shock Hazard

To reduce the risk of electric shock:

• Be sure sprayer is adequately grounded through electrical outlet.

• Use only 3-wire, extension cords.

• Make sure ground prongs are intact on sprayer and extension cords.

• Do not operate with cover removed.

• Turn off sprayer. Follow Pressure Relief Procedure, page 3, and unplug unit, before removing any

parts.

•

309584H 3

Pressurized Equipment Hazard

Fluid from gun, leaks or ruptured components can splash in the eyes or on skin and cause serious

injury.

• Follow Pressure Relief Procedure, page 3 when you stop spraying and before cleaning, checking

or servicing.

• Do not point spray gun at anyone; put hand, fingers or rag over nozzle, or stop or deflect leaks with

your hand, body, glove, or rag.

• Wear protective clothing, gloves, and eyewear.

Cleaning Solvent Hazard with Plastic Parts

Use only compatible water-based solvents to clean plastic structural or pressure-containing parts. Many

solvents can degrade plastic parts to the point where they could fail. Such failure could cause serious

injury or property damage. See Technical Data on page of this instruction manual and in all other

equipment manuals. Read fluid and solvent manufacturer’s warnings.

Sprayer Warnings

For sprayer operation and warning information refer to your sprayer or compressor operation manual.

WARNINGS

Pressure Relief Procedure

To reduce the risk of serious bodily injury, includ-

ing electric shock and splashing fluid in eyes, fol-

low this procedure whenever you stop spraying:

1. Shut OFF air source.

2. Disconnect power source.

3. Turn gun air valve ON.

Grounding

To reduce risk of electrical shock, proper

electrical grounding is essential. See your

sprayer or compressor instruction manual and

consult your local electrical codes for detailed

grounding instructions.

Component Identification

4 309584H

Component Identification

ti2441b

Identifier Component Description

A Air Valve Adjusts air to material mix ratio.

B Flow Adjustment Nut Sets needle position.

C Trigger Engages material flow.

D Trigger Lock Holds trigger open to assist operator during long jobs.

E Material Fill Opening Where mixed material is loaded into hopper. For overhead applications and high walls, posi-

tion hopper on gun with material fill opening facing toward nozzle (J) (front) of gun. For all

other applications, material fill opening should face toward the air valve (A) (back) of gun.

F Handles Provided for operator comfort and relieve operator fatigue during long jobs.

G Hopper Holds material.

H Gun Plug Must be in place when material hose is used with texture pump system. To use hopper,

remove plug and install hopper as described on page 5.

J Nozzle Different sizes available for use with different applications, See Nozzle Selection chart, page

K Hose Plug Must be installed when hopper is used. This feature is not utilized in this application. See

Graco RTX manual for installation and operating instructions for this feature.

M Air Fitting Quick Disconnect used to attach air hose to gun.

N Clamp Secures hopper on gun.

P Gun Plug Clip Secures gun plug to gun.

Basic Operation

309584H 5

Basic Operation

Hopper Installation

1. The Hose Plug must be

securely fastened to bot-

tom of gun when using the

Hopper. Gun Plug must be

removed from top of gun.

2. Align notched

opening in base

of hopper to

raised notch on

hopper port of

gun body.

3. Push hopper down, over hopper port as far as it will

go.

4. Fasten clamp.

5. Connect air hose to gun.

6. Install spray nozzle, page

7. Fill hopper with texture

mix.

8. Open air valve.

9. Turn compressor ON.

Close air valve. Adjust air pressure starting at 30-40

psi.

It is easier to remove plug if you first trigger gun.

For overhead applications and high walls, position

the hopper on the gun with the material fill open-

ing facing toward the nozzle (front) of the gun. For

all other applications, material fill opening should

face the air valve (back) of the gun.

ti2699b

ti2644a

ti2449

ti2621a

ti2476

ti2448a

Mixing Material

6 309584H

Mixing Material

Dry Mix - 40 lb (18 kg) bag.

1. Slowly add one 40 lb. (18

kg) bag of texture mate-

rial to 5-6 gallons

(18.9-22.7 liters) of clean

water as instructed on the

bag instructions.

2. Agitate to mix, using a

half-inch, variable speed

drill with mixing paddle, to

a smooth, lump-free con-

sistency.

3. Allow ceiling texture to set

for at least 15 minutes.

Then remix prior to use.

Premix

1. Slowly add approxi-

mately 2 to 4 qts (1.9 to

3.8 liters) of water to a 5

gallon (18.9 liter) bucket

of premix.

2. Agitate to mix, using a

half-inch, variable speed

drill with a mixing pad-

dle, to a smooth,

lump-free consistency.

Correct material mixture is essential to achieve

the desired finish.

Mix the material in a separate container before

pouring it into hopper.

For best results do not use partial bags of

material.

ti2496

ti2497a

ti2493a

Spray Techniques

309584H 7

Spray Techniques

Recommended Nozzle Selection Chart

1Control air volume with gun air valve.

2For more material volume try a larger nozzle.

Adjusting the System

Sufficient fluid output (volume and pressure) and good

atomization is a balance of atomizing air, material

thickness/material flow and nozzle selection. Achieving

the correct balance for your application requires

experimentation to achieve desired results. Keep in

mind these important points when adjusting gun:

1 Select proper nozzle for your application. See

Nozzle Selection Chart. Remember, the larger the

nozzle, the heavier the pattern.

2 Start with gun air flow

valve completely open. If

needed, slowly close

gun air flow until you get

a good spray pattern.

3 Adjust air flow

adjustment nut and

air valve to achieve

uniform, round

spray pattern. It

may be necessary

to change spray

nozzles to achieve

the desired spray

pattern.

To Get Less Material

Try one or a combination of these methods:

• Open air valve.

• Turn gun flow adjustment nut to decrease flow,

counter-clockwise.

• Use smaller nozzle.

To Get More Material

Try any one or a combination of these methods:

• Close air valve.

• Turn gun flow adjustment nut to increase flow,

clockwise.

• Use thinner material mixture.

• Use a larger nozzle.

For Continuous Spraying

Use trigger lock to hold trigger open and reduce fatigue.

Check Material Consistency Periodically

Check and thin material as needed to maintain proper

consistency. The material may thicken as it sits and slow

down production. Agitate periodically.

Application Nozzle Size2Air Volume1

Simulated

Acoustic

6 mm, white

(fine to medium)

8 mm, gray

(coarse)

medium to high

Orange peel 4 mm, beige

6 mm, white

medium to high

Splatter coat 6 mm, white

8 mm, gray

low to medium

Knockdown 8 mm, gray

12 mm, black

low

ti2448a

ti2475a

• When adjusting flow nut, release trigger, then

adjust.

• If adjusting while triggered, needle will turn

but provide no adjustment.

• If nut will not turn, check to see if it is either

set to maximum adjustment or there is

material on threads. Clean threads as

needed.

• Test spray pattern on cardboard. Hold gun 18

to 24 in. (45.7 to 60.9 cm) from surface. Using

a circular motion, overlap each stroke.

Cleanup

8 309584H

Cleanup

When you have finished spraying

1. Shut off compressor. Disconnect air line from gun.

2. Drain remaining material into a bucket until most of

the texture material is out of hopper.

3. Fill hopper with clean water. Remove nozzle from

gun and allow water to flow through and out of gun.

4. Flush until gun is clean.

5. Remove hopper from gun and finish cleaning all

components. A soft brush may be used to help

loosen any dried on material from surface.

6. Connect air line to gun. Turn on compressor. Open

gun air valve, forcing air through tip to clear out any

remaining material.

7. Disconnect compressor.

To improve working condition for future use, after

cleaning, apply a few drops of light oil to:

• air hose quick disconnect

• material hose connections

• flow adjustment on gun

Be sure to keep air passages in needle clean and

free of material.

Troubleshooting

309584H 9

Troubleshooting

Problem Cause Solution

Material will not flow from hopper • Material too thick.

• Not enough air

• Gun adjustment set too low

• Nozzle too small

• Gun is plugged

• Not enough material in hopper.

• Thin material

• Open gun air valve more

• Increase trigger travel

• Increase nozzle size

• Clean gun

• Add material

Pattern too fine. • Material too thin

• Air pressure too high

• Gun needle travel too low

• Nozzle too small.

• Thicken

• Close gun air valve partially

• Increase

• Replace nozzle with larger size

Pattern too course. • Material too thick.

• Air pressure too low.

• Nozzle to large.

• Thin material

• Open gun air valve more

• Replace nozzle with smaller size

Gun will not shut off • Worn nozzle or needle

• Nozzle not on all the way

• Debris in needle passage

•Relieve Pressure, page 3.

Replace worn parts.

• Tighten completely.

•Relieve Pressure, page 3.

Clean.

Fluid leaking at Flow Adjustment Nut Damaged seal. Relieve Pressure, page 3. Replace

seal.

Fluid leaking out of either plug • Missing or damaged o-rings

• Gun damaged

•Relieve Pressure, page 3.

Replace o-ring

• Replace gun

Needle adjustment won’t adjust • Dirty threads

• Nozzle not on gun

• Needle triggered

• Clean threads

• Put nozzle on gun

• Adjust when trigger not pulled

Material leaking out around gun/hop-

per connection

• Clamp not tight

• Damaged gun/hopper

• Debris between gun/hopper

• Tighten

• Check for damage. Replace.

• Remove hopper from gun. Clean.

Replace hopper.

Parts

10 309584H

Parts

Technical Data

4 (a-b-c-d)

3c 3b

Ref

No. Part No. Description Qty.

1 277138 BODY, gun (series C) 1

2 234162 KIT, plugs, includes 2a, 2b and 2c 1

2a PLUG, hose port

2b PLUG, hopper port

2c O-RING

3 234159 KIT, needle repair, includes 3a, 3b, 3c,

3d, 3e, and 3f 1

3a NEEDLE includes o-ring

3b GUIDE, spring, includes o-ring

3c SPRING

3d NUT, flow adjustment

3e O-RING

3f O-RING

4 234153 KIT, nozzle, includes 4a, 4b, 4c, 4d 1

4a 234538 NOZZLE, fine, beige

4b 234277 NOZZLE, small, white

4c 234278 NOZZLE, medium, gray

4d 234279 NOZZLE, large, black

5 234225 KIT, hopper 1

6 234188 CLAMP 1

7 15F913 TRIGGER (series C) 1

8 15B168 TRIGGER LOCK 1

9 15B565 AIR VALVE 1

10 118717 PIN, clevis 1

11 107243 WASHER, nylon 2

12 115999 RING, retaining 1

13 287967 CLIP, plug, gun 1

Trigger and Gun Body Kit 249640 must be ordered to replace

series A or series B Trigger or Gun Body.

Air Consumption 3.5-11 cfm at 15 to 100 psi

Weight 35 oz (1600 g)

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