Graco TexSpray Compact HP Operation manual

308–718

Rev. C

Supercedes Rev. B

First

choice when

quality counts.



INSTRUCTIONS-PARTS

LIST

INSTRUCTIONS

This

manual contains important

warnings and information.

READ AND KEEP FOR REFERENCE.

– For Water-Based Materials Only –

ELECTRIC TEXTURE SPRAYER WITH COMPRESSOR

TexSpray

Compact HP

100

psi (7 bar) Maximum Working Pressure

Power Model Description

120V,

231–780

Sprayer Model 231–801 with 1 in. fluid

hose, 3/8 in. air hose and T

rigger Gun

231–782

Sprayer Model 231–801 with 1 in. fluid

hose, 3/8 in. air hose and Flex Gun

231–783

Sprayer Model 231–801 with 1 in. fluid

hose, 3/8 in. air hose and 3 ft Pole Gun

240V,

50 Hz

231–788

Sprayer Model 231–803 with 1 in. fluid

hose, 3/8 in. air hose and T

rigger Gun

231–790

Sprayer Model 231–803 with 1 in. fluid

hose, 3/8 in. air hose and Flex Gun

231–791

Sprayer Model 231–803 with 1 in. fluid

hose, 3/8 in. air hose and 3 ft Pole Gun

GRACO INC. P.O. BOX 1441

MINNEAPOLIS, MN

55440–1441

COPYRIGHT

1997, GRACO INC.

Graco

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

7068A

2308–718

Table

of Contents

Warnings 2.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Component

Identification and Function

. . . . . . . . . . .

Preparation 5

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Startup 9

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Spray T

echniques

10.

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shutdown

and Cleanup

12.

. . . . . . . . . . . . . . . . . . . . . . .

Pump

Maintenance

14.

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 14

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compressor

Repair

17.

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Cooler

Repair

19.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts

– Sprayer

22.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Wiring

Diagram

22.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 23

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Technical

Data

23.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Graco

Phone Number

23.

. . . . . . . . . . . . . . . . . . . . . . . . .

Graco

arranty 24.

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Symbols

Warning Symbol

WARNING

This

symbol alerts you to the possibility of serious

injury or death if you do not follow the instructions.

Caution Symbol

CAUTION

This

symbol alerts you to the possibility of damage to

or destruction of equipment if you do not follow the

instructions.

WARNING

INSTRUCTIONS

EQUIPMENT MISUSE HAZARD

Equipment

misuse can cause the equipment to rupture or malfunction and result in serious injury

This equipment is for professional use only

Read all instruction manuals, tags, and labels before operating the equipment.

Use the equipment only for its intended purpose. If you are not sure, call Graco T

echnical Assis

tance at 1–800–543–0339.

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

Do not alter or modify this equipment. Use only genuine Graco parts.

Check equipment daily

. Repair or replace worn or damaged parts immediately

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

equipment has a

100 psi (7 bar) maximum working pressure at 100 psi (7 bar) maximum air

pressure.

o reduce the risk of serious injury

, including electric shock and splashing fluid in the eyes, follow

the

Pressure Relief Procedure

on page 7 before checking or repairing the compressor

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 55

C (130

F) or below –40

C (–40

_F).

Do not lift pressurized equipment.

308–718

WARNING

TOXIC FLUID HAZARD

Hazardous

fluid or toxic fumes can cause serious injury or death if splashed in the eyes or on the skin,

inhaled, or swallowed.



Know the specific hazards of the fluid you are using.



Store hazardous fluid in an approved container

. Dispose of hazardous fluid according to all local,

state and national guidelines.



Always wear protective eyewear

, gloves, clothing and respirator as recommended by the fluid and

solvent manufacturer



Pipe and dispose of exhaust air safely

, away from people, animals, and food handling areas.



Never directly inhale compressed air

. Compressed air may contain toxic vapors.

FIRE AND EXPLOSION HAZARD

Improper

grounding, poor ventilation, open flames or sparks can cause a hazardous condition and

result in a fire or explosion and serious injury



The system is for use only with water-based materials.

Use fluids compatible with the equip

ment wetted parts. Refer to the

echnical Data

section of all equipment manuals. Read the fluid

and solvent manufacturer

’

s warnings.



Ground the equipment. Refer to

Grounding

on page 5.



If there is any static sparking or you feel an electric shock while using this equipment,

stop spray-

ing immediately

Do not use the equipment until you identify and correct the problem.



Provide fresh air ventilation to avoid the buildup of flammable fumes from solvents or the fluid

being sprayed.



Keep the work area free of debris, including solvent, rags, and gasoline.



Locate the sprayer at least 20 ft (6.1 m) away from any explosive vapors, due to arcing parts.



Comply with all applicable local, state, and national fire, electrical, and safety regulations.

4308–718

7069A

Fig. 1

Located inside

hopper

Component

Identification and Function

Closed

NOpen

7136A

A Air

Outlet

Provides quick disconnect connection for air supply to spray gun

Pump Outlet Fitting Provides connection for hose and fluid supply to spray gun

Air Pressure Regulator

Adjusts air pressure to control air pressure to pump

ON/OFF Switch

Power switch that controls 120/240 V

ac power to sprayer

E Compressor

Open frame AC motor

, 1 phase, with two cylinder oil-less single stage

air compressor

F Pump

Pressurizes fluid to be sprayed through spray gun

Heat Exchanger

Reduces temperature of air from compressor

Spray Gun

Uses compressor air to break up and spray texture material

J Hopper

Holds texture material;12 gallon maximum capacity

Air Filter

Filters incoming air to the compressor

Material Screen

Filters material to the pump

Auxiliary Air Compressor Port

Provides connection to replacement or supplemental air compressor

Gun Air V

alve

Shuts of

f air supply to spray gun

Air Line Drain V

alve

Allows air line moisture accumulation to be drained

308–718

Preparation

Compressor Break-in

The

first time you use the system, run the compressor

under no load to break it in, improve performance and

lengthen its life.

Connect the air hose to (A) and the gun to the

other end of the hose. Open gun air valve (423)

and turn air restrictor valve (424) all the way to the

+ position. See Fig. 2 and 9.

Fig. 2 7070A

2. T

urn the ON/OFF switch (D) ON. Run the system

for 15 minutes. T

urn the switch OFF

. See Fig. 3.

Fig. 3

7078A

Hose Size and Lengths

The

system comes with a hose set consisting of a 1 in.

ID x 25 ft (25 mm x 7.6 m) fluid hose and a 3/8 in. ID

air hose. The 1 in. hose set includes an adapter hose

between the gun and main hose. See parts, page 22.

Use the shortest length possible when spraying. In

creasing hose length decreases sprayer performance.

Do not use more than 75 ft (23 m) of fluid hose.

Removing and Installing the Hopper

1. To

remove the hopper (J), loosen the knob (P) until

about 1 in. of thread shows. Lift the hopper straight

up of

f the unit. See Fig. 4.

2. T

o install the hopper

, position the hopper drain

over the pump inlets while tilting the hopper very

slightly forward. As you engage the inlets,

straighten the hopper and push down. V

isually

inspect the pump inlets to be sure the hopper is

fully engaged. T

ighten the knob (P). See Fig. 4.

Fig. 4 7071A

Grounding

WARNING

Improper installation or alteration of the grounding

plug will result in a risk of electric shock, fire or

explosion that could cause serious injury or death.

120 V

ac Systems

This equipment requires a 120 V

ac, 60 Hz, 15A

circuit with a grounding receptacle. See Fig. 5.

Fig. 5 Grounding

Prong

Grounded

Outlets

2. Do

not alter the ground prong or use an adapter

See page 6 for Extension Cord Requirements.

240 V

ac Systems

This equipment requires a 240 V

ac, 50 Hz, 6A

circuit with a grounding receptacle. See Fig. 6.

Do not alter the ground prong or use an adapter

See page 6 for Extension Cord Requirements.

Fig. 6

Grounded

Outlet

Grounding

Prong

6308–718

Preparation

Setup the System

1. Connect

the hoses and gun as shown See Fig. 4.

Fig. 7 7072A

Be sure the air filter (K) and the material screen (L)

are in place. See Fig. 8.

Plug the power cord into a properly grounded,

120V

, 15A (240V

, 16A) (minimum) outlet.

Extension Cord Requirements:

Use

a cord with an undamaged, 3 prong plug.



For up to 25 ft (7.6 m) cord, use three wires, 12

WG (1.5 mm

) minimum.



For 25 to 50 ft (7.6 to 15.2 m) cords, use three

wire, 10 A

WG (2.5 mm

) minimum.



Do not use an ungrounded adapter

Fig. 8

Located inside hopper

07073A

Using an Auxiliary Air Compressor

external air compressor may be connected (adapt

er included) to the auxiliary air compressor port (L) to

supplement, or replace, the internal air compressor of

the TexSpray

. This may be useful when:



Additional air is needed to break up hard-to-spray

materials or



When the job site does not have the proper electric

service, but a gasoline-powered compressor is

available.

WARNING

Over pressurizing the system may cause compo

nent rupture and resulting in serious injury

o reduce the risk of over pressurizing the system, do

not use a compressor with an output pressure greater

than 100 psi (7 bar

, 70 kPa), and/or with a delivery

greater than 6.8 scfm at 90 psi (0.19 m

/min. at 6.3

bar

, 60.3 kPa).

308–718

Preparation

WARNING

PRESSURIZED EQUIPMENT HAZARD

The system pressure must be manually relieved to

prevent the system from starting or spraying acci

dentally. T

o reduce the risk of an injury from acci

dental spray from the gun, splashing fluid, or

moving parts, follow the

Pressure Relief Proce

dure

whenever you:



are instructed to relieve the pressure,



stop spraying,



check or service any of the system equipment,



or install or clean the spray nozzle.

Pressure Relief Procedure

1. Shut

f the system.

2. T

rigger the gun back into the hopper

Open the gun air valve (handle parallel with valve

body).

Unplug the system.

Place a rag over the pump outlet fitting (B) and

slowly open the cam locks to relieve residual

pressure.

Operation Characteristics

1. Always

start the system with the compressor air

relieved!

How to relieve pressure: Be sure the gun air

valve (423) and air restrictor valve (424) are open.

This relieves compressor air every time you shut

f the system. See Fig. 9.

Air bleeds from the gun nozzle whenever the gun

air valve (423) is open. Close the valve to stop the

air

, if desired. Otherwise, it can stay open except

during priming. See Fig. 9. See page 10 for more

gun characteristics.

A compressor unloader valve (10) with two pres

sure relief valves (W) is located under the com

pressor guard (1

1). Air escapes from the valve,

causing a popping sound, when air flow at the gun

is too restricted. The valve resets automatically

when the air flow is increased. See Fig. 10.

If air exhausts through the pump muf

fler or the

pump starts and then stops, see texture pump

manual 308–781.

Always have the fluid hose installed when there is

material in the hopper

. If the hose is removed, the

hopper will drain out through the pump.

WARNING

The motor has a thermal overload switch which

shuts down the motor if it overheats.

o reduce the risk of serious bodily injury due to the

system restarting unexpectedly

, always turn the

ON/OFF switch (D) OFF if the motor shuts down.

See Fig. 3.

CAUTION

Damage to the power cord may result from uninter

rupted operation. Do not operate sprayer at maxi

mum pressure for more than 1 hour in any 2 hour

period.

Fig. 9 7132A

423

Gun air valve

shown open

424

Fig. 10

11 7074A

8308–718

Preparation

Wet the Hose Before Pumping Texture

Material

Wet

the inside of the hose before each use to flush out

sediment and to prevent the texture material from

packing out the hose.

The hopper (J) capacity is 12 gallons (30 liters).

Pour a gallon of clean water into the hopper

Close the gun air valve (423); the system primes

easier if no air is supplied to the gun.

3. T

urn the ON/OFF switch (D) ON. T

rigger the gun

into the hopper (J). T

rigger the gun to circulate the

water for a few minutes and wet the inside of the

fluid hose.

4. T

rigger the gun into a pail to lower the water to the

hopper strainer (L) level.

5. T

urn the ON/OFF switch (D) OFF

Open the gun air valve (423) to relieve the com

pressor air

Fig. 11

Closed 423 Open

7136A

Mix the Material

CAUTION

This

system is designed for use with only certain

types of material. Any other use could seriously

damage the unit.



Do not use any solvent-based materials. Use

only water-based materials.



Use only simulated acoustic and gypsum-based

wall texture materials in this system.



Do not spray cementious materials, which will

damage the pump.

Proper material mixture is essential. The pump

won’t operate if the material is too thick.

Mix material in a separate container and pour into the

hopper for best results.

Slowly add one bag of texture material to clean water

as instructed on the bag instructions. Agitate to a

smooth, lump-free consistency

Thin the material as

needed before pouring it into the hopper. For the

best results, do not use partial bags of material.

308–718

Startup

Prime the System

1. Fill

the hopper (J) with the prepared texture

material.

Install a tip. Refer to the T

ip Selection Chart on

page 10.

Open the gun air valve (423) to be sure air pres

sure is relieved and then close it again; the system

primes easier if no air is supplied to the gun.

Be sure there are no kinks in the hose, which

restricts fluid flow

NOTE:

If spraying a simulated acoustic and coarse

aggregate material, disconnect the hose at the gun,

prime the pump and hose, and circulate material back

into the hopper for 10 seconds. T

urn of

f the pump.

Install the gun and tip.

5. T

urn the ON/OFF switch (D) ON. T

rigger the gun

into a pail. When texture material appears at the

tip, move the gun to the hopper and circulate until

there is a solid stream of texture material.

See SPRA

Y TECHNIQUES on pages 10 and 1

for how to balance the pump and gun adjustments

for a good spray pattern.

Fig. 12

Located inside hopper

7073A

10 308–718

Spray

echniques

Tip Selection Chart

Application Tip

Orifice

Air V

olume1

Fog

1/8 in.

High

Simulated

Acoustic

3/16 in.

(fine, or small

confined areas)

1/4 in.

(fine to medium)

5/16 in.

(coarse)

Medium to

High

Orange Peel

1/8 to 3/16 in.

Medium to

High

Splatter Coat

1/4 to 5/16 in.

Low to

Medium

Knockdown

5/16 in.

Low

Control air volume with the gun air flow valve (424).

For more material volume, try a larger orifice tip.

Adjusting the System

Sufficient

fluid output (volume and pressure) and good

atomization requires testing to balance the compressor

air to the gun and pump and to select the right tip.

Keep in mind these important points when adjusting

the gun:

Read all of pages 10 and 1

1 first.

Refer to the chart above for tip selection. Consider

the size of aggregate in the material and the

coarseness of the spray pattern. Remember

, the

larger the tip, the heavier the pattern.

The compressor provides air to both

the gun and

the pump; the more air you supply to the gun, the

less that is available for the pump.

All spraying adjustments are made at the gun;

material pressure and flow rate is made by adjust

ing the regulator

Start the sprayer with the gun air flow valve (424)

at its maximum setting (fully

). If needed, slowly

decrease the gun air flow until you get a good

spray pattern. Use the minimum amount of air at

the spray gun to achieve the proper spray pattern

and minimize bounce back.

6. T

urning the air flow valve (424) toward

(+)

increases air flow

through the gun which

decreases texture material output

7. T

urning the air flow valve (424) toward

(–) decreases air flow through the gun

which

increases pump output.

To Get Less Material

Try

any one or a combination of these methods.

Screw in the gun fluid regulator knob (418).

Use a smaller tip.

Reduce pump pressure. Use the regulator

To Get More Material

Try

any one or a combination of these methods.

1. T

urn the air flow valve (424) to decrease (

–).

Unscrew the fluid knob (418) to increase trigger

travel.

Note:

Maximum trigger travel occurs when trigger

bail (401) can hold trigger in open position. Fig. 13.

Use a shorter hose.

Use a thinner material mixture.

5. T

ry a larger orifice tip.

Increase pump pressure. Use the regulator

CAUTION

urning the knob (418) out too far will remove the

knob and the gun will not shut of

f when the trigger is

released.

7. T

est the spray pattern on cardboard. Hold the gun

18 to 30 in. (457 to 762 mm) from the surface. Use

this spraying distance for most applications.

Overlap each stroke 50% in a circular motion.



OUT

423

Fig. 13

418 IN

424

401

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