Graco TexSpray 248091 Guide

Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441
Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001
310616B
Operation and Parts
TexSpray Gun
- For Water-Based Materials Only-
(See Material Manufacturer for specific material application requirements)
Model: 248091, non-bleeder, use with RTX 1500
Model: 248093, bleeder, use with GTX 2000 and Compact HP
Model: 248094, bleeder, includes fine finish tip kit, use with EXT HP, Twin Tank EXT
125 psi (0.86 MPa, 8.6 bar) Maximum Working Pressure
Read all warnings and instructions.
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Warnings
2310616B
The following are general Warnings related to the safe setup, use, maintenance and repair of this
equipment. Additional, more specific warnings may be found throughout the text of this manual where
applicable.
Warnings
Fire and Explosion Hazard
Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent
fire and explosion:
• Use equipment only in well ventilated area.
• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop
cloths (potential static arc).
• Keep work area free of debris, including solvent, rags and gasoline.
• Do not plug or unplug power cords, turn power switch on or off, or turn lights on or off when flamma-
ble fumes are present.
• Ground equipment and conductive objects in work area. See Grounding instructions.
• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment
until you identify and correct the problem.
Equipment Misuse Hazard
Equipment misuse can cause death or serious injury.
• Do not exceed maximum working pressure or temperature rating of lowest rated system component.
See Technical Data, in all equipment manuals.
• Use fluids and solvents that are compatible with equipment wetted parts. See Technical Data in all
equipment manuals. Read fluid and solvent manufacturer’s warnings.
• Check equipment daily. Repair or replace worn or damaged parts immediately.
• Do not alter or modify this equipment.
• Use the equipment only for its intended purpose. Call your Graco distributor for information.
• For professional uses only.
• Do not use hoses to pull equipment.
• Route hoses away from traffic areas, sharp edges, moving parts and hot surfaces.
• Comply with all applicable safety regulations.
Pressurized Equipment Hazard
Exceeding maximum working pressure of any attachment can cause serious injury. Compressed air can
inject in skin. Air tubing rupture can cause injury if disconnected while under pressure. To reduce risk of
injury:
• Never exceed maximum working pressure of any attachment.
• Do not point spray gun at anyone, or put hand, fingers, or rag over nozzle or stop or deflect leaks with
your hand, body, glove or rag.
• Follow Pressure Relief Procedure, page 5 whenever you are instructed to relieve pressure, stop
spraying, service equipment, install or clean spray nozzle or disconnect or connect hose.
Sprayer Warnings
For sprayer operation and warning information refer to your sprayer or compressor operation manual.

Warnings
310616B 3
Warnings
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 22 of this instruction manual and in all other
equipment manuals. Read fluid and solvent manufacturer’s warnings.
Personal Protective Equipment
Wear proper protective equipment when operating or servicing this equipment or when in the operating
area to help protect yourself from serious injury, including eye injury, hearing loss and burns. This equip-
ment includes, but is not limited to:
• protective eye wear
• hearing protection
•gloves

Component Identification
4310616B
Component Identification
Gun Styles
Non-bleeder - model 248091, use with RTX 1500 TexSpray
Air flow automatically shuts off when you stop triggering gun.
Bleeder - model 248093, use with GTX 2000 and Compact HP sprayers
Air flows constantly through gun.
Bleeder - model 248094, use with EXT HP and Twin Tank EXT sprayers
Air flows constantly through gun. Includes fine finish tip kit (J).
English Français Spanish
AAir Valve
CTrigger
DTrigger Lock
ENozzle
FAir Fitting
GMaterial Inlet
HAir Shutoff Needle (Model 248091 only)
JFine Finish Tip Kit (Model 248094 only)
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EGD
CH
A
F
J

Pressure Relief Procedure
5
Pressure Relief Procedure
English Français Spanish
IMPORTANT
To reduce the risk of injury, follow this Pressure
Relief Procedure whenever you:
• Are instructed to relieve pressure
• Stop spraying
• Service equipment
• Install or clean spray nozzle
• Disconnect or connect hose.
1 Shut OFF air source. 2 Disconnect power source. 3 Open gun air valve (A). 4 Trigger gun to relieve pressure.
123
123
TI3037A
OFF
ON
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Electric Model
Gas Model
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A
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Setup
6
Setup
Grounding
English Français Spanish
To reduce risk of electrical shock, proper electric
grounding is essential. See your sprayer instruction
manual and consult your local electrical codes for
detailed grounding instructions.
Installation
1Relieve Pressure, page 5. 2 Connect air and material
hoses to gun. Tighten securely.
3 If using fine finish adapter,
install disc (2a) on front of
adapter (3a) with retaining ring
(1a). Install a standard 8 mm
nozzle (4a) on front of gun with
the assembly. If desired finish
is not achieved, try a different
size standard nozzle.
See Nozzle Selection Chart,
page 7.
For Standard operation:
install nozzle (4a) on front of
gun and secure using retaining
ring (1a). See Nozzle Selection
Chart, page 7.
4 Refer to system operation
manual to start and prime
sprayer.
1234
1234
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3A
2A
1A
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4A

Spray Techniques
7
Spray Techniques
Nozzle Selection
1 Control air volume with gun air flow valve (A).
2For more material volume, try a larger-orifice tip.
English Francois
Application Nozzle
No. 2Air Volume1Application Nozzle No. 2Air Volume1
Fog 3-4 mm high 3-4 mm
Simulated Acoustic 4 mm medium to high 4 mm
6 mm 6 mm
8-10 mm 8-10 mm
Orange Peel 3-4 mm
4-8 mm
medium to high 3-4 mm
4-8 mm
Splatter Coat 6-8 mm
6-10 mm
low - medium 6-8 mm
6-10 mm
Knock-
down
8-12 mm low 8-12 mm
Textured Elasto-
merics
8-12 mm high** 8-12 mm
Plastics 8-10 mm high** 8-10 mm
EIFS 8-12 mm high** 8-12 mm
Stucco 10-12 mm high** 10-12 mm
Spanish
Application Nozzle
No. 2Air Volume1
3-4 mm
4 mm
6 mm
8-10 mm
3-4 mm
4-8 mm
6-8 mm
6-10 mm
8-12 mm
8-12 mm
8-10 mm
8-12 mm
10-12 mm

Spray Techniques
8
Spray Disc and Nozzle Selection
Standard nozzles (4A) are
numbered 3, 4, 6, 8, 10 and 12,
designating orifice size in
millimeters. These parts can be
interchanged to produce a pattern
suitable for each job. See Nozzle
Selection Chart, page 7.
• For smaller droplet sizes, reduce
nozzle (4A) and/or disc (2A) size
and increase gun atomizing air
by opening air valve (A)
(counter-clockwise).
• For larger droplets, increase noz-
zle (4A) and/or disc size (2A) and
reduce gun atomizing air by clos-
ing air valve (A) (clockwise).
12
12
WARNING MISE EN GARDE
ADVERTENCIA ADVERTÊNCIA
Page 2
3A
2A
1A
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4A
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A

Spray Techniques
9
System Adjustment
1 Open air valve (A). 2 Test spray pattern on card-
board. Hold gun 18 to 30 in.
(457 to 762 mm) from surface.
Use this spray distance for
most applications. Overlap
each stroke 50% in a circular
motion.
3 Adjust air valve (A) to achieve
uniform, round spray pattern. It
may be necessary to change
spray nozzle to achieve
desired spray pattern.
NOTE: Keep a small amount of air
flowing through air line and gun tip
to prevent material from backing up
needle
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123
WARNING MISE EN GARDE
ADVERTENCIA ADVERTÊNCIA
Page 2
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A
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A

Spray Techniques
10
4 To select correct nozzle for
your applications, consider
size of aggregate in material
and coarseness of spray pat-
tern. Remember the larger the
nozzle, the larger the pattern.
See Nozzle Selection, page
7.
• More air produces a finer finish,
less air a coarser finish.
When adjusting flow adjustment
nut (B), release trigger (C), then
adjust.
If adjusting while triggered,
needle will turn but provide no
adjustment.
If flow adjustment nut will not
turn, check to see if it is:
• set to maximum adjustment, or
•if there is material on threads.
Clean threads as needed.
Check material consistency
often. Material may thicken as it
sits and slow down production or
affect spray pattern. Thin with
water as needed to maintain
proper consistency.
4
4
C
B
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Spray Techniques
11
Material Flow
Adjustment
Air Flow Adjustment Preventing Material
Surge at Gun Trigger
For Continuous
Spraying
•For a lighter spray pattern,
decrease material pressure at
sprayer.
• For a heavier spray pat-
tern,increase material pressure
at sprayer.
• Trigger gun.
• To decrease air flow, close air
valve (A) (clockwise)
• To increase air flow, open air
valve (A) (counter-clockwise).
NOTE: Keep a small amount of air
flowing through air line and gun tip
to prevent material from backing up
needle
Pressure will build up in system
when you stop triggering gun. To
prevent material surge at
beginning of spray pattern,
• when you first pull trigger, point
gun away from surface you are
spraying.
• hold gun away from surface
and gradually work your way
closer to it.
• trigger gun as little as possible
• Engage trigger lock (D) to hold
trigger open and reduce
fatigue.
••••
••••
WARNING MISE EN GARDE
ADVERTENCIA ADVERTÊNCIA
Page 2
B
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A
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D

Cleanup
12
Cleanup
1 Pump remaining material into
bucket until most of texture
material is out of hopper.
NOTE: Keep a small amount of air
flowing through air line and gun tip
to prevent material from backing
up needle
2 Fill hopper with clean water. 3 Pump water through system
and out of gun.
4 Remove nozzle (4A) from gun
and allow water to flow
through and out of gun. Flush
until gun is clean.
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1234
WASTE
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4A

Cleanup
13
5 Finish cleaning all compo-
nents. A soft brush may be
used to help loosen any dried
on material from surface.
Cleaning out all air passages
and components will improve
gun performance and life.
6 Connect air line to gun. Open
gun air valve (A), forcing air
through tip to clear out any
remaining material.
7 Disconnect air line and mate-
rial hose from gun.
To improve working condition for
future use, after cleaning apply
a few drops of light oil to:
• air hose quick connect
• material hose connections
• trigger nut
• air shutoff needle (model
248091)
• material needle
FLUSH
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A
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Repair
14
Repair
Fluid Seal Replacement
For Non-bleeder guns use Seal Replacement Kit, 287228.
For Bleeder guns use Seal Replacement Kit, 287338
U
U-cups seals are very fragile. Never pound on
seal during installation.
1 Remove retaining ring (11),
nozzle (28), and needle
assembly (9) through front of
gun.
2 Use a hook-shaped object to
carefully pull up-cup retainer
and u-cup out of gun.
3 Using your finger or a 1/2-in.
diameter rod, push new seal
(3) in place. Make sure seal is
seated against sleeve bearing
(35).
4 Insert u-cup retaining ring
(10). Make sure retiaing ring
is seated against u-cup (3).
5 Graco recommends you
replace the entire fluid needle
assembly at this time, includ-
ing the needle (9) spring (5),
packing o-ring (6) and guide
(7).
6 Trigger gun a few times to
make sure u-cup and retainer
are securely in place.
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9
5
6
7
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Repair
15
Air Seal Replacement (Non-bleeder only)
Use Seal Replacement Kit, 287229.
U
U-cups seals are very fragile. Never pound on
seal during installation.
1 Remove air valve retainer
(21), compression spring
(19), air valve seal (18) and
needle (17) through back of
gun.
2 Use a hook-shaped object to
carefully pull u-cup seal (4)
out of gun.
3 Push new seal (4) in place
using a small diameter (1/4
in. or smaller) object. Make
sure seal is seated against
sleeve bearing (36).
4 Replace air valve needle (17)
seal (18), spring (19) and
0-ring (20) if necessary.
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Troubleshooting
16
Troubleshooting
Problem Cause Solution
Material will not flow out of gun Material too thick Thin material. Increase pressure at
pump.
Not enough air Open gun air valve (A) more
(counter-clockwise)
Trigger adjustment set too low Rotate trigger nut clockwise to
increase (adjust) trigger travel
Nozzle too small Increase nozzle size
Gun is plugged Clean gun
Pattern too fine Material too thin Add more dry material to mix to
thicken
Air pressure too high Close gun air valve (A) partially
(clockwise)
Gun needle travel too low Rotate trigger nut clockwise to
increase (adjust) trigger travel
Nozzle too small Replace nozzle with larger size
Pattern too coarse Material too thick Add water to mix to thin material
Air pressure too low Open gun air valve (A) more
(counter-clockwise)
Nozzle too large Replace nozzle with smaller size
Gun will not shut off Worn nozzle and/or needle Relieve pressure, page 5. Replace
worn parts
Nozzle retaining ring not on all the
way
Tighten completely.
Debris in gun passages Relieve pressure, page 5. Clean
gun.
Fluid leaking at flow adjustment nut
(B)
Damaged seal Relieve pressure, page 5. Replace
seal (3).
Trigger nut won’t adjust Dirty threads Clean threads.
Nozzle not on gun Put nozzle on gun.
Needle triggered Adjust when trigger is not pulled.
Air won’t shut off when gun trigger is
released (non-bleeder model only)
Debris in gun air passages Relieve pressure, page 5. Clean
gun.
Loose air fittings Tighten air fittings on gun
Worn air seals Replace air shutoff needle u-cup (4)
and/or air valve seal (18)

Notes
17
Notes

Parts
18
Parts
Gun Model 248091 - Non-bleeder
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12
13
5
7
6
8
35
9
11
22
23
21
20
19
18
17
4
2
28
14
15
15
16
3
36
10

Parts
19
Parts
Item Part No. Description Qty
2 103147 PLUG, pipe 1
3 15D125 SEAL, u-cup,.375 dia. shaft 1
4 15D126 SEAL, u-cup,.156 dia. shaft 1
5 118592 SPRING, compression 1
6 156454 PACKING, o-ring 1
7 15C894 GUIDE, needle, fluid 1
8 15B163 NUT, needle 1
9 246972 NEEDLE, fluid, assbly 1
10 119343 RING, retaining 1
11 15B042 RING, retaining, nozzle 1
12 15C882 TRIGGER, gun 1
13 15D120 LOCK, trigger 1
14 118717 PIN, clevis w groove 1
15 107243 WASHER 2
16 115999 RING, retaining 1
17 15C895 NEEDLE, air valve 1
18 15D104 SEAL, air valve 1
19 108961 SPRING, compression 1
20 103610 PACKING, o-ring 1
21 15C896 RETAINER, spring, air valve 1
22 15B565 VALVE, ball 1
23 169970 FITTING, line, air 1
28 NOZZLE 1
28a 15C883 NOZZLE, texture 3mm 1
28b 15C884 NOZZLE, texture 4 mm 1
28c 15C885 NOZZLE, texture 6 mm 1
28d 15C886 NOZZLE, texture 8 mm 1
28e 15C887 NOZZLE, texture 10 mm 1
28f 15C888 NOZZLE, texture 12 mm 1
35 119183 BEARING, sleeve,.375 dia. shaft 1
36 119184 BEARING, sleeve, 4 mm dia. shaft 1
37 287228 KIT, repair, fluid needle, (includes 3, 5, 6, 7, 9, 10,bleeder16 and 35)1
38 287229 KIT, repair, air needle (includes 4, 17, 18, 19, 20, and 36) 1

Parts
20
Parts
Gun Model 248093 - Bleeder
Gun Model 248094 - Bleeder, with fine finish kit (29)
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35*
5*
7*
6*
8*
9
28
11
21
20
12
13
22
23
29A
29 B-C-D-E
29F
15
16*
15
14
3*
29
10