Operation GTX™ 2000EX 313384B - For Water-Based Materials Only - Model 257030 Sprayer with Graco Trigger Gun 120 psi (8.27 bar) Maximum Working Air Pressure 120 psi (8.27 bar) Maximum Working Fluid Pressure Important Safety Instructions Read all warnings and instructions in this manual. Save these instructions.
Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbol refers to procedure-specific risk. Refer back to these warnings. Additional, product-specific warnings may be found throughout the body of this manual where applicable. WARNING WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode.
PLASTIC PARTS CLEANING SOLVENT HAZARD Use only compatible water-based solvents to clean plastic structural or pressure-containing parts. Many solvents can degrade plastic parts and cause them to fail, which could cause serious injury or property damage. See Technical Data in this and all other equipment instruction manuals. Read fluid and solvent manufacturer’s warnings.
Component Identification Component Identification A B D C K ti13066a E F H G J L 4 313384B
Component Identification List Component Identification List A Nozzle Storage B Hopper C Hopper Quick Connect D Diaphragm Pump E Material Outlet Option 1 F Material Outlet Option 2 G Gun Air Outlet Quick Connect H Material (Pump) Air Pressure Gauge and Control Knob J Gun Air Pressure Gauge and Control Knob K Gun (see manual 308878)* L Air Compressor (not supplied by Graco) * Reference numbers used in gun illustrations reflect numbers shown in gun manual 308878.
Pressure Relief Procedure Pressure Relief Procedure 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 23 1. Turn OFF air inlet valve (E). TI 3. Trigger gun. Spray material back into hopper (G). E 2. Open gun air valve (23).
Setup Setup Preparation Removing and Installing Hopper 1. Connect air and material hoses to gun. Tighten securely. Hopper (G) can be removed from cart for cleaning and when using Siphon Kit 248112 (available from Graco distributor). Removing Hopper (G) 1. Push down 2 latches on each side of hopper coupler (H). 23 ti3899a ti4003a 2. Connect one end of material hose (cc) to material outlet (K or L) and other end to gun material inlet (bb). 2. Lift hopper (G) straight up off of unit.
Setup Installing Hopper (G) Additional Equipment Needed 1. Position coupler (H) over material outlet and slide hopper (G) straight down, over fitting as far as it will go. Make sure hopper bracket is positioned over cart handle rod. Auxiliary Air Compressor (not supplied) Minimum Requirements: • 12 CFM @ 100 psi (maximum 120 psi) • 3/8 in. x 25 ft. minimum airline rated at 120 psi ti3925a 2. Secure latches on each side by pushing them firmly up into locked position.
Wetting Hose Wetting Hose 4. Trigger gun into waste pail until hopper no longer contains water. Wet inside of hose before each use to flush out sediment and prevent texture material from packing out hose. 1. Pour one (1) gallon (3.8 liters) of clean water into hopper. ti4290a WASTE 5. Open gun air valve (23) to relieve compressor air. 2. Close gun air valve (23). 23 23 TI closed ti4005 3. Turn air inlet valve (E) open.
Wetting System Wetting System 1. Fill hopper (G) with prepared textured material. G NOTE: If spraying a simulated acoustic and course aggregate material, disconnect hose at gun, prime pump and hose and circulate material back into hopper for 10 seconds. Turn off pump. Install gun and tip. 4. Inspect hose for kinks which could restrict fluid flow. 5. Trigger gun into a pail. When texture material appears at tip, move gun to hopper and circulate until material flows in a solid stream.
Mixing Material Mixing Material NOTICE Do not use any solvent-based materials. Use water-based materials only. Proper material mixture is essential. Pump will not operate if material is too thick. NOTE: For best results, mix material in a separate container and pour it into hopper. 3. After texture is thoroughly mixed, gently set ball end of Material Thickness gauge on surface of mixture. NOTE: For accurate test, be sure gauge is completely dry and clean before each use. 4. Observe ball on material.
Operation Characteristics Operation Characteristics • Always start system with compressor air relieved. See Pressure Relief Procedure, page 6. • Always have material outlet plug installed in opening (K or L) not in use when material is in hopper. If plug is removed, hopper will drain out. • Always have material hose installed in opening (K or L) when material is in hopper. If hose is removed, hopper will drain out through pump.
Spray Techniques Spray Techniques Nozzle Selection NOTICE 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. Application Nozzle Orifice† Nozzle Number Air Volume‡ Fog 1/8 in. 3 High 3/16 in. (fine) 4 Simulated Acoustic 1/4 in. (fine to medium) 6 Medium to High 5/16 in. (coarse) 8 Orange Peel 1/8 to 3/16 in. 3-4 Medium to High Splatter Coat 1/4 to 5/16 in.
System Adjustment System Adjustment NOTE: Keep a small amount of air flowing through air line and gun tip to prevent material from backing up needle. 1. Open gun air valve (23). 4. To select correct nozzle for your applications, consider size of aggregate in material and coarseness of spray pattern. Remember the larger the nozzle, the larger the spray pattern. See Nozzle Selection, page 13. NOTE: More air produces a finer finish; less air produces a coarse finish. 23 5.
System Adjustment Material Flow Adjustment B NOTE: Keep a small amount of air flowing through air line and gun tip to prevent material from backing up needle. Preventing Material Surge at Gun Trigger Pressure will build up in system when not triggering gun. To prevent material surge at beginning of spray pattern: • Point gun away from surface to be sprayed when trigger is first pulled. • Hold gun away from surface and gradually bring gun to surface. • Trigger gun as little as possible.
Shutdown and Cleanup Shutdown and Cleanup • NOTICE Turn off sprayer if you are going to stop spraying for 5 minutes or longer. • Before removing material hose, Relieve Pressure and make sure there is no material inside of hose. • To keep sprayer in good operating condition, always clean it thoroughly and prepare it properly for storage. • If water freezes in sprayer, damage may occur. During cold weather, store sprayer where it will not freeze. Spray water into waste bucket to empty material hopper.
Maintenance Maintenance Component Hoses Air and Material Hose Connections Diaphragm Pump Task Frequency Check for wear and/or damage Daily Drain system of all water After each use Add a few drops of light oil After each use Lubricate Remove hose from pump air line and add 2 drops of machine oil to air inlet after every 500 hours of operation (or monthly) Flush Before storing Thread connections Gun Before each use, check to make sure all connections are light and leak-free Torque all threade
Graco Standard 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.
