Graco Inc Paint Sprayer ti8370a User Manual

Operation  
Interior Texture Sprayer  
RTX 650  
311767B  
For Water-Based Materials Only  
Model 254973:  
50 psi (3.5 bar) Maximum Fluid Working Pressure  
100 psi (7 bar) Maximum Air Input Pressure  
Important Safety Instructions  
Read all warnings and instructions in this manual.  
Save these instructions.  
Related Manuals  
ti8370a  
Model 254973 Shown  
US  
C
Graco Inc. P.O. Box 1441 Minneapolis, MN 55440-1441  
Copyright 2006, Graco Inc. is registered to I.S. EN ISO 9001  
Conforms to ANSI/UL  
standard 1450  
 
Warnings  
Warnings  
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. Improper installation of  
grounding plug will result in a risk of electrical shock, fire or explosion that could cause serious injury  
or death.  
Do not operate with cover removed.  
Turn off sprayer. Follow Pressure Relief Procedure, page 6, 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 6 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 14 of this instruction manual and in all other  
equipment manuals. Read fluid and solvent manufacturer’s warnings.  
Personal Protective Equipment  
You must wear appropriate protective equipment when operating, servicing, or when in the operating  
area of the equipment to help protect you from serious injury, including eye injury, inhalation of toxic  
fumes, burns, and hearing loss. This equipment includes but is not limited to:  
Protective eyewear  
Clothing and respirator as recommended by the fluid and solvent manufacturer  
Gloves  
Hearing Protection  
3
 
Warnings  
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.  
ti9075a  
Before adding material or starting unit in cold weather, run warm water through pump.  
Before adding material to hopper, install burp guard (J). 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.  
J
i8376a  
4
 
Component Identification  
Component Identification  
A
P
N
B
M
C
H
D
E
R
ti8369a  
L
F
G
K
J
Q
3.5 cfm@40 min.  
Item  
Component  
Item  
Component  
A
B
C
D
E
F
Pump Hose Outlet  
J
K
L
Burp Guard  
RotoFlex™ II Pump (inside)  
ON/OFF Switch  
Power Cord (120V, 15 ft)  
Material Hopper - 5 gallon  
Cord Wrap  
Texture Spray Gun (Manual 311777)  
Nozzle (2 included, see Nozzle Selection, page 10)  
Material Hose (20 ft)  
M
N
P
Q
R
Material Thickness Gauge  
Accessories Bag  
Handle  
G
H
Air Compressor (Not Supplied by Graco)  
Knob  
Gun Air Valve  
5
 
Preparation  
Preparation  
Check with a qualified electrician or serviceman if  
Pressure Relief Procedure  
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.  
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  
120V AC Systems  
This equipment requires a 120V AC, 60 Hz, 15A cir-  
cuit with a grounding receptacle. Do not use an  
adapter with this product.  
1. Turn power switch (K) OFF.  
ti9165a  
ti2810a  
2. Trigger gun into material hopper.  
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  
2
AWG (1.5 mm ) minimum.  
ti8371a  
For up to 100 ft. (30.48 m) cord, use 3-wire, 12 AWG  
2
(2.5 mm ) minimum.  
3. Open gun air valve.  
Additional Required Equipment  
Auxiliary Air Compressor  
Minimum Requirements: 3.5 CFM @ 40 psi or 2.5 CFM  
@ 90 psi (maximum 100 psi)  
ti8528a  
3/8 x 25 ft minimum airline rated @ 120 psi/min  
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.  
Alternate Power - Generator Requirements  
3500 W (3.5 kW) minimum  
6
 
     
Setup  
Setup  
Important  
To increase pump life, turn power off when not spraying.  
Do not allow material to dry inside pump, hoses, gun or spray system.  
To break in new pump run dry for no more than 2 minutes.  
4. Connect material hose to gun.  
Texture Spraying  
1. Connect air hose to user-supplied air compressor &  
material hose (G) to material hose outlets.  
ti8705a  
5. Install spray nozzle. See Recommended Nozzle  
Selection Chart, page 10.  
ti8375a  
2. Connect user supplied air hose to gun.  
ti9774a  
To break in new pump run dry fro no more than 2  
minutes.  
ti8534a  
3. Open air valve.  
6. Fill material hopper with 1 gallon of water.  
ti8528a  
ti8372a  
7. Turn power switch (K) ON (leave compressor OFF).  
7
 
Setup  
11. Continue to trigger gun and spray into waste bucket  
until a steady stream of material sprays out of gun.  
12. Turn on Air compressor and open gun valve to  
desired setting.  
ti9202a  
8. Point gun into waste bucket and pull trigger to pump  
water through the system. Continue to trigger gun  
until material hopper is empty.  
9. Install burp guard (J). Caution, page 3.  
ti9775a  
13. To achieve uniform spray pattern, adjust air valve  
and flow adjustment nut on gun. If you can not  
achieve a desired pattern, change nozzle, page 10.  
ti8376a  
Fluid flow will be restricted if the material hose is  
kinked.  
10. Add pre-mixed texture mix to material hopper. See  
Mixing Material, page 9.  
8
 
Mixing Material  
Mixing Material  
4. After texture material is thoroughly mixed, gently set  
Correct material mixture is essential. The pump  
will not operate if the mixture is too thick.  
ball end of Material Thickness Gauge on surface of  
mixture.  
Mix the material in a separate container before  
pouring it into hopper.  
For an accurate test, be sure gauge is completely  
dry and clean every time it is used.  
Use Material Thickness Gauge to determine  
mixture is thin enough to spray.  
5. Observe the ball on the material. When the material  
is thin enough to spray the ball will sink completely  
into the mixture.  
*The Material Thickness Gauge will only  
determine if the material is thin enough to pass  
through the pump. For some applications or for  
higher speed spraying, your mixture may need to  
be thinner.  
READY  
ADD WATER  
ti2498a  
Dry Mix - 40 lb (18 kg) bag.  
6. If the ball does not sink completely into the mixture  
within 10 seconds, add more water, agitate and try  
test again.  
For best results do not use partial bags of  
material.  
1. Slowly add one 40 lb. (18 kg) bag of texture material  
to 5-6 gallons (18.9-22.7 liters) of clean water as  
instructed on the bag instructions.  
Premix  
1. Slowly add approximately 2 to 4 qts (1.9 to 3.8 liters)  
of water to a 5 gallon (18.9 liter) bucket of premix.  
READY  
ADD WATER  
ti2498a  
ti2496  
2. Agitate to mix, using a half-inch, variable speed drill  
with a mixing paddle, to a smooth, lump-free consis-  
tency.  
2. Agitate to mix, using a half-inch, variable speed drill  
with mixing paddle, to a smooth, lump-free  
consistency.  
3. After texture material is thoroughly mixed, gently set  
ball end of Material Thickness Gauge on surface of  
mixture.  
For an accurate test, be sure gauge is completely  
dry and clean every time it is used.  
ti2497#1  
4. Observe the ball in material. When the material is  
thin enough to spray the ball will sink completely into  
the mixture.  
3. Allow ceiling texture to set for at least 15 minutes.  
Then remix prior to use.  
5. If the ball does not sink completely into the mixture  
within 10 seconds, add more water, agitate and try  
test again.  
9
 
 
SprayTechniques  
Spray Techniques  
Recommended Nozzle Selection Chart  
To Get Less Material  
Try one or a combination of these methods:  
2
1
Application  
Nozzle Size  
Air Volume  
Open air valve.  
Simulated  
Acoustic  
6 mm, white (fine to medium)  
8 mm, gray (coarse)  
medium to  
high  
medium to  
high  
low to  
medium  
Turn gun flow adjustment nut to decrease flow,  
counter-clockwise.  
Orange peel  
6 mm, white  
Use smaller nozzle.  
Splatter  
coat  
6 mm, white  
8 mm, gray  
To Get More Material  
Knockdown  
8 mm, gray  
low  
Try any one or a combination of these methods:  
1
2
Control air volume with gun air valve.  
For more material volume try a larger nozzle.  
Close air valve.  
Turn gun flow adjustment nut to increase flow, clock-  
wise.  
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:  
Use thinner material mixture.  
Use a larger nozzle.  
Preventing Material Surge at Gun Trigger  
Pressure will build up in the system when you stop  
triggering the gun. To prevent material surge at initial  
gun triggering:  
Select proper nozzle for your application. See  
Nozzle Selection Chart. Remember, the larger the  
nozzle, the heavier the pattern.  
Point gun away from surface you are spraying when  
you first pull trigger.  
Start sprayer with gun air flow valve completely  
open. If needed, slowly close gun air flow until you  
get a good spray pattern. Use minimum amount of  
air at spray gun to achieve proper spray pattern and  
to minimize bounce back.  
When you first start to spray, hold the gun away from  
the surface and gradually work your way closer to it.  
Keep gun moving.  
+ Test spray pattern on cardboard. Hold gun 18 to  
24 in. (45.7 to 60.9 cm) from surface. Use this  
spraying distance for most applications.  
After you begin spraying, trigger the gun as little as  
possible.  
For Continuous Spraying  
Air and material flow adjustments are made at the  
gun on all units.  
Use trigger lock to hold trigger open and reduce fatigue.  
+ Opening air valve increases air flow through gun,  
which decreases texture material flow through  
pump.  
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.  
+ Closing air valve decreases air flow through gun,  
which increases texture material flow through pump.  
Set air compression at a minimum of 25 psi. Addi-  
tional air pressure may be needed for thicker materi-  
als or when product is applied to ceilings.  
10  
 
   
Shutdown and Cleanup  
Shutdown and Cleanup  
Keep pump and hose clean when switching between simulated acoustic, knockdown and orange peel  
applications. A dirty pump can release particles of texture into the finish.  
CAUTION  
To increase pump life, turn power off when not spraying.  
Before removing material hose be sure pressure is relieved and material is not in hose.  
To keep unit in good operating condition, always clean it thoroughly and prepare it properly for storage.  
5. Spray inside material hopper to circulate water  
through gun and hose. While circulating water, use  
gun to clean material hopper.  
Texture Spraying (5 gallon Material Hopper)  
When you have finished spraying:  
1. Turn sprayer power switch (K) ON (air compressor  
can remain OFF).  
ti8371a  
6. Spray water into a waste bucket to empty material  
hopper.  
A soft brush can be used to loosen dried on  
material.  
ti9202a  
7. Turn sprayer power switch OFF.  
8. Turn air compressor ON.  
2. Close gun air valve.  
9. Open gun air valve to blow out any remaining tex-  
ture residue. Flush with water.  
CAUTION  
If water freezes in unit, damage may occur. Store  
system where it will not freeze during cold weather.  
ti8527a  
3. Trigger gun into bucket until most of texture mix is  
pumped out.  
10. Turn air compressor OFF.  
Inspect slots under machine daily for texture  
material. If you find material flowing out of slots or  
see material inside unit, replace pump hose  
immediately.  
4. Fill material hopper with 2-4 gallons of clean water.  
11  
 
Troubleshooting  
Troubleshooting  
Problem  
Sprayer won’t run  
Cause  
Solution  
Turn switch on.  
Power switch not on  
No power at wall outlet  
Check outlet by plugging in another  
appliance. If appliance does not  
work, try another outlet.  
Wrong size generator  
Use a 3500 watt or larger generator.  
Refer to Generator Requirements,  
page 6.  
Breaker tripped  
Air lock  
Reset breaker.  
Pump won’t pump material  
Open air valve on gun.  
Mix too thick  
Add water to thin material. Use Mate-  
rial Thickness Gauge.  
Loose fittings  
Plugged gun  
Check and retighten all fittings.  
Relieve Pressure, page 6. Remove  
gun from hose. Clean gun.  
Pump hose worn out  
Pump cold  
Replace hose. Recommended hose  
replacement - once every year.  
Move pump to warm room and allow  
it to warm up or run hot water through  
sprayer.  
Material runs out of bottom of sprayer Pump hose worn out  
Loose fittings  
Replace hose.  
Check and retighten all fittings.  
Open gun air valve.  
No air from compressor  
Gun air valve closed  
Low voltage  
Check extension cord length and  
gauge. Replace if different than rec-  
ommended. Refer to Grounding and  
Electrical Requirements, page 6.  
Gun needle plugged  
Worn compressor  
Clean needle and retry.  
Replace compressor. Contact a qual-  
ified Graco Service Center.  
Lines not connected  
Damaged hose  
Check all quick disconnect connec-  
tions to gun and hoses.  
Replace hose.  
12  
 
Troubleshooting  
Problem  
Cause  
Solution  
Speed of application slow or slower New pump hose not broken in  
properly  
Run pump dry for no more than 2  
minutes.  
Material too thick  
Nozzle too small  
Thin material.  
Change nozzles to a larger size. See  
Recommended Nozzle Selection  
Chart, page 10.  
Too much air being used  
Partially close gun air valve to reduce  
air flow.  
Pump hose worn  
Replace hose.  
Plugged or dirty gun  
Relieve Pressure, page 6. Clean  
gun.  
Kinked hose  
Unkink hose.  
Gun adjustment set too low  
Increase flow adjustment with flow  
adjustment nut.  
Too many items on same circuit  
Unplug other items from circuit  
Extension cord too long or wrong  
gauge  
Use a different extension cord. Refer  
to Grounding and Electric Require-  
ments, page 6.  
Intermittent flow/sputtering  
Hopper connection not tight  
Debris in system  
Check gasket. TIghten connection.  
Clean system.  
Quick disconnect does not stay con- Dirty or corroded fitting  
nected.  
Clean thoroughly. Soak in oil. Apply a  
few drops of light oil.  
Gun will not shut off  
Worn nozzle or needle  
Relieve Pressure, page 6. Replace  
worn parts.  
Debris in needle passage  
Relieve Pressure, page 6. Clean.  
Fluid leaking at Flow Adjustment Nut Damaged seal  
Relieve Pressure, page 6. Replace  
seal.  
Fluid leaking out of either plug  
Needle adjustment won’t adjust  
Missing or damaged o-rings  
Relieve Pressure, page 6. Replace  
o-rings.  
Gun damaged  
Dirty threads  
Replace gun.  
Clean threads.  
Put nozzle on gun.  
Nozzle not on gun  
13  
 
TechnicalData  
Technical Data  
Main Unit Power Requirements . . . . . . . . . . . . . . . . . . . . 120 Vac, 60 Hz, 15A, 1 phase  
Maximum Fluid Working Pressure . . . . . . . . . . . . . . . . . . 50 psi, (3.5 bar)  
Maximum Air Working Pressure. . . . . . . . . . . . . . . . . . . . 100 psi (7.0 bar)  
Compressor Specifications . . . . . . . . . . . . . . . . . . . . . . . Universal motor thermally protected, oil-less  
Compressor (Not Supplied) . . . . . . . . . . . . . . . . . . . . . . . 3.5 @ 40 psi minimum  
Generator (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3500 W minimum  
Electric Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Permanent Magnet DC-5A  
Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 AWG, 3-wire, 15 ft  
Material Hopper Capacity. . . . . . . . . . . . . . . . . . . . . . . . . 5 gallons  
Maximum Delivery with Texture . . . . . . . . . . . . . . . . . . . . 0.65 gpm  
TX 65 Dimensions and Weight  
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 in. (482 mm) with handle  
Width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 in. (305 mm)  
Height (no handle) . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 in. (508 mm)  
Weight (includes hoses or gun) . . . . . . . . . . . . . . . . . 33 lb (14.9 kg)  
Wetted Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . brass, aluminum, plastic  
Sound Data (less compressor)  
Sound Pressure Level . . . . . . . . . . . . . . . . . . . . . . . . N/A  
Sound Power Level . . . . . . . . . . . . . . . . . . . . . . . . . . N/A  
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . 35°F - 160°F (1.6°C - 71°C)  
Operating Temperature Range. . . . . . . . . . . . . . . . . . . . . 40°F - 115°F (4°C - 46°C)  
Gun:  
Maximum Fluid Working Pressure. . . . . . . . . . . . . . . 70 psi (3.5 bar)  
Maximum Air Working Pressure . . . . . . . . . . . . . . . . 125 psi (8.75 bar)  
CFM Rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0 - 11 CFM  
Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 lb (500 g)  
14  
 
 
Notes  
Notes  
15  
 
GracoWarranty  
Graco Warranty  
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in  
material and workmanship on the date of sale to the original purchaser for use. With the exception of any special, extended, or limited warranty  
published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by  
Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written  
recommendations.  
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in  
material and workmanship on the date of sale by an authorized Graco distributor to the original purchaser for use. With the exception of any  
special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part  
of the equipment determined by Graco to be defective. This warranty applies only when the equipment is installed, operated and maintained in  
accordance with Graco’s written recommendations.  
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty  
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of  
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with  
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or  
maintenance of structures, accessories, equipment or materials not supplied by Graco.  
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of  
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned  
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will  
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.  
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED  
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.  
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy  
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or  
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.  
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT  
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to  
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these  
warranties.  
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or  
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the  
negligence of Graco, or otherwise.  
TO PLACE AN ORDER OR FOR SERVICE, contact your Graco distributor,  
or call 1-800-690-2894 to identify the nearest distributor.  
All written and visual data contained in this document reflects the latest product information available at the time of publication.  
Graco reserves the right to make changes at any time without notice.  
This manual contains English: MM 311767  
Sales Offices: Minneapolis  
International Offices: Belgium, Korea, China, Japan  
PRINTED IN USA 2007  
16  
 

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