Graco TexSpray RTX 750 Operating instructions

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

www.graco.com

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

For Water-Based Materials Only

Models:

246183 - RTX 750, 6 Gallon

55 psi (0.379 MPa, 3.79 bar)

Maximum Fluid Working Pressure

246184 - RTX 1000, 8 Gallon

60 psi (0.414 MPa, 4.14 bar)

Maximum Fluid Working Pressure

Related Manuals

Important Safety Instructions

Read all warnings and instructions in this manual.

Save these instructions.

309584

309585 Model 246184 Shown

309586R

Repair

Interior Texture Sprayers

TexSpray™ RTX 750™

and RTX 1000™

U.S. patent D526,045

Conforms to ANSI/UL

standard 1450

U.S. patent D501,241

2 309586R

WARNINGS

Fire and Explosion Hazard

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

in fire or explosion and serious injury.

• The system is for use with water-based materials only. Only use fluids compatible with the

equipment. Refer to Technical Data of all equipment manuals. Read fluid and solvent manufacturers

warnings.

• Ground all equipment in the work area. See Grounding and Electrical Requirements, page 5.

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

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

and correct the problem.

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

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

• Keep a fire extinguisher in the work area.

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 cementicious 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 on page 5 before servicing the unit.

• Do not kink or over bend hoses or 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).

• Air hoses at the compressor end, can get very hot! Allow sprayer to cool down 15 minutes before

removing air hose.

• 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.

309586R 3

Electric Shock Hazard

To reduce the risk of electric shock:

• Be sure sprayer is adequately grounded through electrical outlet, page 5.

• 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 5, and unplug unit, before removing any

parts.

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 5 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.

• Before adding material to hopper, install burp guard. When only a small

amount of material remains in the hopper, the burp guard prevents material

from shooting out when the unit is turned off. This material could splash in

the operator’s eyes or on skin, or into the air.

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 26 of this instruction manual and in all other

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

WARNINGS

ti2894a

CAUTION

Water or material remaining in unit when temperatures are below freezing can damage

motor and/or delay pump startup.

To insure water and material are completely drained out of unit:

1. Remove material line from sprayer.

2. Tip sprayer up as shown.

Before adding material or starting unit in cold weather, run warm water through pump.

ti2754a

ComponentIdentification

4 309586R

Component Identification

Item Component Item Component

A Air hose outlet N Touch-up hopper (3/4 gallon)

B Material hose outlet P Nozzle storage

C Material flow control (RTX 1000) R Hose plug

D Hopper gun/spray gun selector switch S Gun plug

E ON/OFF switch T Material thickness gauge

F Air Compressor (inside) U Nozzle

G Material/air hose W Gun air valve

H Material flow indicator (RTX 1000) Y Burp guard

J Texture spray gun (manual 309584) aa Hopper fitting (fluid inlet)

K Material Hopper - 6 gallon, RTX 750

Material Hopper - 8 gallon, RTX 1000

bb Hopper clamp

L RotoFlex™ pump (inside) cc Hose clip

M Hose rack/cord wrap dd Gun plug clip

Preparation

309586R 5

Preparation

Pressure Relief Procedure

To reduce risk of injury, follow this procedure

whenever you see this symbol throughout this

manual, Also, perform this procedure whenever

you:

• stop spraying.

• check or repair any part of this system.

• install or clean spray nozzle.

1. Turn Power Switch OFF.

2. Trigger gun into material

hopper.

3. Open gun air valve.

Grounding and Electrical Requirements

This sprayer must be grounded. Grounding reduces the

risk of electrical shock by providing an escape wire for

the electrical current. The sprayer cord includes a

grounding wire with an appropriate grounding plug. The

plug must be plugged into an outlet that is properly

installed and grounded in accordance with all local

codes and ordinances.

Check with a qualified electrician or serviceman if

grounding instructions are not completely understood,

or if in doubt as to whether the product is properly

grounded. Do not modify plug provided; if it will not fit

the outlet, have proper outlet installed by a qualified

electrician.

120V AC Systems

• This equipment

requires a 120V

AC, 60 Hz, 15A

circuit with a

grounding

receptacle. Do not

use an adapter

with this product.

Extension Cords

• Use only an extension cord with an undamaged,

3-prong plug.

• For 25 to 50 ft (7.6 to 15.2 m) cords, use 3-wire, 14

AWG (1.5 mm2) minimum.

• For up to 100 ft. (30.48 m) cord, use 3-wire, 12 AWG

(2.5 mm2) minimum.

Auxiliary Air Compressor

Do not use an auxiliary air compressor with this spray

system.

Generator Requirements

3500 W (3.5 KW) minimum.

Hose Size and Length

The system comes with a hose set consisting of a 3/4 in.

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

air hose.

Do not use more than 25 ft. (7.6 m) of material hose.

WARNING

page 2

TI2458a

ti2447a

ti2448a

WARNING

page 2

WARNING

page 2

RotoFlex™Pump

6 309586R

RotoFlex™ Pump

Disassembly

1. Relieve Pressure, page 5.

2. Unplug sprayer from outlet.

3. Remove shroud

(6 bolts).

4. Remove hopper by

loosening bottom

fitting and then lift-

ing hopper straight

up, off unit.

5. Remove material

hose.

6. Loosen bolt (A)

located between air

and material hose

outlets. Unscrew

bolt to lower plate,

leaving about 4-5

threads on bolt.

DO NOT REMOVE

BOLT COMPLETELY.

7. Slide a 2 x 4

under motor for

support.

8. Rotate plate.

Slide hose off by

pushing outward on

hose fitting.

ti3025a

ti3118a

ti3132a

ti3083a

ti3124a

ti3119a

RotoFlex™ Pump

309586R 7

Reassembly

Reinstall RotoFlex Pump hose on plate.

1. Kink hose as shown,

making sure dots

located on hose fitting

face each other.

2. Slide hose onto plate

as shown below, mak-

ing sure plate slides

into slot between hex

fitting on end of hose.

3. Align dots located on hose fitting, making sure they

are facing each other at all times to ensure the hose

does not twist during reinstallation.

4. Reposition plate, aligning hex fittings with enclosure

openings.

5. Remove 2 x 4 support under motor.

6. Tighten bolt. As bolt is tightened the plate will snug

back into place.

7. Replace shroud (6 bolts).

8. Replace hopper.

9. Break in new pump by running dry or with warm

water for 3-5 minutes.

ti3127a

ti3125a

ti3084a

CompressorRepair

8 309586R

Compressor Repair

Use Compressor Repair Kit, 234211.

Disassembly

1. Relieve Pressure, page 5.

2. Unplug sprayer.

3. Remove shroud (6 bolts).

4. Remove green

ground wire and

black, and white

wires to compressor.

5. Loosen fittings (A and B) and remove air line.

6. Using a socket wrench

with extension, loosen

bolts (3).

7. Tilt compressor forward

and remove from hous-

ing.

8. Thoroughly clean inside housing, removing dust and

debris.

Reassembly

1. Carefully position compressor in housing.

2. Replace bolts using socket wrench to tighten.

Torque to 85 in. lbs.

3. Reattach air lines to

compressor. Finger

tighten plus one full

turn, fittings (A and

B).

4. Reattach 3 wires to

compressor matching

green to green, black to

black and white to white.

5. Replace shroud. Tighten bolts (6).

ti3025a

ti3022a

ti2748a

ti2749a

ti3032a

bolt

CAUTION

Fan blades are very delicate and can be damaged very

easily. When removing or replacing compressor, do not

bump or jar shroud or fan blades.

TI3011a

Roller Replacement

309586R 9

Roller Replacement

Use Roller Repair Kit 234214.

Disassembly

1. Relieve Pressure, page 5.

2. Unplug sprayer from outlet

3. Remove shroud (6 bolts).

4. Remove RotoFlex Pump, page 6.

5. Using a crow bar

as a wedge to

keep rollers from

moving, loosen

shoulder bolt.

6. Remove rollers.

Reassembly

1. Replace rollers.

2. Using a crow bar as a wedge to keep rollers from

moving, torque bolts to 40 ft. lbs.

3. Reinstall RotoFlex Pump hose on plate, page 6.

4. Replace shroud. Tighten bolts (6).

ti3025a

ti3026a

ti3031a

CAUTION

When installing bolt through roller, keep nylon washer

on shoulder of bolt.

ti3030a

ti3029a

Cylinder

10 309586R

Cylinder

Use Cylinder Repair Kit 246574, RTX 750.

Use Cylinder Repair Kit 246575, RTX 1000.

Disassembly

1. Relieve Pressure, page 5.

2. Unplug sprayer from outlet.

3. Remove shroud (6 bolts).

4. Disconnect air hose at quick

disconnect fitting.

5. Remove

clip.

6. Remove

pin.

7. Pull swing arm out of opening.

Reassembly

1. Insert swing arm through

hole.

2. Align hole in bottom of cylinder with holes in bottom

bracket.

3. Feed pin through.

4. Replace clip.

5. Reattach air hose to quick

disconnect fitting.

6. Replace shroud. Tighten bolts (6).

ti3025a

ti3085a

ti3086a

I2851A

ti3087a

TI2852A

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