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Operation
Interior Texture Sprayers
RTX 900 & RTX 1250
Models: 254974 & 254975
70 psi (0.49 MPa, 4.9 bar) Maximum Fluid Working Pressure
Important Safety Instructions.
Read all warnings and instructions in this
manual. Save these instructions.
Related Manuals
311777
311772
For Water-Based Materials Only
311768B
ti8867a
Model 254975 Shown
US
C
Conforms to ANSI/UL
standard 1450
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Table of Contents
Related Manuals for Graco 254974
Summary of Contents for Graco 254974
- Page 1 Operation Interior Texture Sprayers RTX 900 & RTX 1250 Models: 254974 & 254975 70 psi (0.49 MPa, 4.9 bar) Maximum Fluid Working Pressure Important Safety Instructions. Read all warnings and instructions in this manual. Save these instructions. Related Manuals 311777...
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Page 2: Fire And Explosion Hazard
Warnings The following are general warnings related to the setup, use, grounding, maintenance and repair of this equipment. Additional, more specific warnings may be found throughout the body of this manual where applicable. Symbols appearing in the body of the manual refer to these general warnings. When these symbols appear through the man- ual, refer back to these pages for a description of the specific hazard. - Page 3 Warnings Burn Hazard Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns, do not touch hot fluid or equipment. Wait until equipment/fluid has cooled completely. Electric Shock Hazard To reduce the risk of electric shock: •...
- Page 4 Warnings • Water or material remaining in unit when temperatures are below freezing can damage motor and/or delay pump startup. Do not allow unit to freeze. • Before adding material or starting unit in cold weather, run warm water through pump. To ensure water and material are completely drained out of unit: ti9016a 1.
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Page 5: Component Identification
Component Identification Model 254975 Shown Item Component Handle Toolbox Power Cord (120V, 25 ft) Side Pump Access Panel (RTX 1250 Only) ™ RotoFlex II Pump (inside) Pump Hose Outlet Air Hose Outlet Material Flow Gauge Material Flow Control ON/OFF Switch Selector Switch Material Hopper - 10 gallon, RTX 900 Material Hopper - 12 gallon, RTX 1250... - Page 6 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.
- Page 7 • If you are going to stop spraying for more than 5 minutes, turn sprayer off to prevent shortened pump hose life. • Do not allow material to dry inside pump, hoses, gun or spray system. Texture Spraying (material supplied from unit) When using material supplied from unit, insert...
- Page 8 Setup 9. Turn power switch ON. ti9222a 10. Close gun air valve. ti8712a 11. Point gun into waste bucket and pull trigger to pump water through the system. Continue to trigger gun until material hopper is empty. ti9084a 12. Add pre-mixed texture mix to material hopper. See Mixing Material, page 10.
- Page 9 6. Turn hopper gun/spray gun selector switch to HOP- PER GUN. ti9220a 7. Open gun air valve. ti8528a 8. Turn power switch ON. ti9222a 9. To achieve uniform spray pattern, adjust air valve and flow adjustment nut on gun. If you do not achieve the desired spray pattern, change nozzles (see page 11).
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Page 10: Mixing Material
Mixing Material Correct material mixture is essential. The pump will not operate if the mixture is too thick. Mix the material in a separate container before pouring it into hopper. Use Material Thickness Gauge to determine mix- ture is thin enough to spray. *The Material Thickness Gauge will only deter- mine if the material is thin enough to pass through the pump. -
Page 11: Spray Techniques
Recommended Nozzle Selection Chart Application Nozzle Size Simulated 6 mm, white Acoustic (fine to medium) 8 mm, gray (coarse) Orange peel 4 mm, beige, 6 mm, white Splatter 6 mm, white coat 8 mm, gray Knockdown 8 mm, gray 12 mm, black Control air volume with gun air valve. -
Page 12: Shut Down And Clean-Up
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. • To increase pump life, turn power off when not spraying. •... - Page 13 Removing Material Hopper From Sprayer: The material hopper can be removed for cleaning. To remove material hopper: 1. Loosen bottom fitting. ti8871a 2. Lift material hopper straight up, off unit. ti8876a 3. Plug opening on bottom of material hopper with your hand.
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Page 14: Troubleshooting
Troubleshooting Problem Sprayer won’t run Pump won’t pump material Material runs out of bottom of sprayer Pump hose worn out No air from compressor Troubleshooting Cause Power switch not on No power at wall outlet Wrong size generator Breaker tripped Air lock Selector switch in wrong position Mix too thick... - Page 15 Problem Speed of application slow or slower Intermittent flow/sputtering Quick disconnect does not stay con- nected. Gun will not shut off Fluid leaking at Flow Adjustment Nut Damaged seal. Fluid leaking out of either plug Needle adjustment won’t adjust Cause Material too thick Nozzle too small Too much air being used.
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Page 16: Technical Data
4.0 scfm at 45 psi 3500W minimum Universal AC 14 Amp 1.5 Hp 16 AWG, 3-wire, 25 ft Model 254974: 8 gallons Model 254975: 10 gallons Gun material hopper: 3/4 gallon RTX 900 - 0.9 gpm (3.4 lpm) RTX 1250 - 1.25 gpm (4.7 lpm) 23 in. -
Page 17: Graco Warranty
Graco Warranty 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. - Page 18 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 311768 Graco Headquarters: Minneapolis International Offices: Belgium, China, Japan, Korea GRACO INC.