Graco GX21 Cordless Operation, Parts
  1. Manuals
  2. Brands
  3. Graco Manuals
  4. Paint Sprayer
  5. GX21 Cordless
  6. Operation, parts

Graco GX21 Cordless Operation, Parts

Electric airless sprayers
Hide thumbs Also See for GX21 Cordless:
Table of Contents

Advertisement

Quick Links

Operation, Parts
GX21 Cordless Electric
Airless Sprayers
For portable airless spraying of architectural paints and coatings. Not
approved for use in explosive atmospheres or hazardous (classified)
locations. For professional use only.
GX21 Cordless Models: 25T973, 25T967
3000 psi (207 bar, 20.7 MPa) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual and related manuals. Be familiar with
the controls and the proper usage of the equipment. Save these instructions.
Gun – 312830 (SG3)
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.
Related Manuals
Pump – 3A3172
3A8429A
www.graco.com/techsupport
EN

Advertisement

Table of Contents
loading

Related Manuals for Graco GX21 Cordless

Summary of Contents for Graco GX21 Cordless

  • Page 1 Read all warnings and instructions in this manual and related manuals. Be familiar with the controls and the proper usage of the equipment. Save these instructions. Related Manuals Gun – 312830 (SG3) Pump – 3A3172 www.graco.com/techsupport Use only genuine Graco replacement parts. The use of non-Graco replacement parts may void warranty.

  • Page 2: Table Of Contents

    GX21 Cordless Airless Sprayer Parts ........

  • Page 3: Models

    Models Models Battery Charger Model Region Stand Voltage VDC Voltage VAC GX21 Cordless 25T973 GX21 Cordless EMEA 25T967 The GX21 Electric Airless Sprayer is compatible with the following DEWALT FLEXVOLT 54V and 60V batteries: • DCB606 - 60V/2ah (20V/6ah) •...

  • Page 4: Important Grounding Information

    Important Grounding Information Important Grounding Information Before using your sprayer read this manual for complete instructions on proper use and safety warnings. The following information is intended to help you understand when to use the grounding wire and clamp provided with your sprayer. Please read the information on the material container label to determine if it is oil-based or flammable.

  • Page 5: Warnings

    All parts of the spray system, including the pump, hose assembly, spray gun, and objects in and around the spray area shall be properly grounded to protect against static discharge and sparks. Use Graco conductive or grounded high-pressure airless paint sprayer hoses. Follow Grounding Instructions, page 9.
  • Page 6 Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 3000 psi (207 bar, 20.7 MPa). Use Graco parts or accessories that are rated a minimum of 3000 psi (207 bar, 20.7 MPa).
  • Page 7 Warnings PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage. • Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents.

  • Page 8: Know Your Sprayer

    Know Your Sprayer Know Your Sprayer Component Identification Gun Fluid Filter (inside handle) ON/OFF Switch Fluid Outlet Fitting (airless hose connection) Pressure Control Knob Grounding Wire with Clamp Gun Fluid Inlet Fitting Inlet Valve Removal Tool Prime Valve Ground Adapter Push Prime Button Easy Access Door with Cover Tip Guard...

  • Page 9: Grounding Instructions

    Grounding Instructions Grounding Instructions (Oil-based and flammable materials) Plug the adapter in to a grounded outlet. Connect the grounding wire and clamp to the metal stud on the adapter. If the ground wire is not long enough to reach a grounded electrical outlet, use a 3-wire grounded The equipment must be grounded to extension cord between the adapter and...

  • Page 10: Pails

    Grounding Instructions Pails To maintain ground continuity when sprayer is flushed or pressure is relieved: hold metal part of spray gun firmly to the side Solvent and oil-based fluids: follow local of a grounded metal pail then trigger the gun. codes and regulations.

  • Page 11: Setup

    Remove tip guard. Do not lose the seal. When unpacking sprayer for the first time or after long term storage perform setup procedure. Connect Graco airless hose to fluid outlet. Use wrench to tighten securely. ti25197a Turn Pressure Control Knob all the way left (counter-clockwise) to minimum pressure.

  • Page 12: Battery Installation And Removal

    Setup Install battery by aligning the battery Battery Installation and pack with the rails inside the sprayer and Removal sliding it in until the battery pack is firmly seated. Ensure that it does not disengage. Always start with a fully charged battery. Do not splash or immerse battery or charger in water.

  • Page 13: Pressure Relief Procedure

    Pressure Relief Procedure Pressure Relief Procedure Follow the Pressure Relief Turn pressure control to lowest setting. Procedure whenever you see this symbol. This equipment stays pressurized until pressure is manually relieved. To help Hold the gun firmly to a pail, point gun prevent serious injury from pressurized into pail.

  • Page 14: Operation

    Operation Operation Flush Storage Fluid This sprayer arrives from the factory with a small amount of test material in the system. It is important that you flush this material from the sprayer before using it for the first time. See Cleaning Fluid Compatibility, page 30 and Quick Reference, page 31 for additional information.
  • Page 15 Operation Submerge suction tube in a Align setting indicator with low setting on Pressure Control Knob. grounded pail partially filled with water or flushing fluid. When flushing with oil-based or flammable materials, follow Grounding Instructions, page 9. Turn ON/OFF switch to ON position. Power button is illuminated when ON.

  • Page 16: Fill Pump

    Operation 10. Turn ON/OFF switch to OFF position. Press ON/OFF switch to ON position. Power button is not illuminated when Button is illuminated when power is ON. OFF. Wait to see paint coming out of the drain tube. Press ON/OFF switch to OFF position. Button is illuminated when power is OFF.

  • Page 17: Fill Gun And Hose

    Operation Fill Gun and Hose Hold gun against waste pail. Point gun into waste pail. Disengage trigger lock. Pull and hold gun trigger. Turn Prime/Spray valve to SPRAY ti27139a position. Press ON/OFF switch to ON posi- tion. Button is illuminated when NOTE: When motor stops sprayer is ready power is ON.

  • Page 18: How To Spray

    How to Spray How to Spray Use spray tip to align gasket and Spray Tip Installation seal in the tip guard. To avoid serious injury from skin injection, do not put your hand in front of the Spray Tip when installing or removing the Spray Tip or Spray Tip Guard.

  • Page 19: Spray

    How to Spray Spray When a RAC X™ FF LP Fine Finish Low Pressure reversible spray tip is used, spraying pressure can be lowered. Spraying at a lower pressure results in less overspray and reduces spray tip wear. Adjust the sprayer pressure to minimize overspray.

  • Page 20: Adjust Pressure Control

    How to Spray Adjust Pressure Control The pressure control knob allows for infinite pressure adjustment. To reduce overspray, always start at the lowest pressure setting and increase pressure to the minimum setting that results in an acceptable spray pattern. To select pressure, align symbol on pressure control knob with setting indicator on sprayer Tip and Pressure Selection See table for recommended spray pressure for your material.

  • Page 21: Spray Techniques

    How to Spray Spray Techniques • Flex wrist to keep gun pointed straight. Fanning gun to direct spray at angle causes uneven finish. Use a piece of scrap cardboard to practice these basic spraying techniques before you begin spraying the surface. •...

  • Page 22: Aiming Gun

    How to Spray Aiming Gun • Material may need to be thinned. If material needs to be thinned follow manufacturer’s recommendations. Aim center of spray of gun at bottom edge of previous stroke, overlapping each stroke by Clear Tip Clog half.

  • Page 23: Cleanup

    Cleanup Cleanup Cleaning the sprayer after each use results in Remove suction tube and drain tube a trouble free start up the next time the from paint, wipe excess paint off out- sprayer is used. side. • For long term storage refer to Storage, page 28.
  • Page 24 Cleanup Turn Pressure Control Knob to the gun into waste pail until flushing fluid dis- pensed from gun is relatively clear. Prime/Clean setting (the lowest setting at which the pump will run). Place Prime/Spray valve in PRIME posi- tion. 15. Stop triggering gun. Engage the trigger 10.

  • Page 25: Power Flush

    Cleanup Power Flush Turn on water. Open valve. Rinse paint off suction tube, drain tube and inlet (Water-based materials Only) strainer then close valve. Power flushing is a faster method of flushing. only used after spraying water-based materials. Perform Pressure Relief Procedure, page 13.
  • Page 26 Cleanup 12. Open Power flush attachment valve. 16. While continuing to trigger gun, quickly move gun to redirect spray into waste pail. Continue triggering gun into waste pail until flushing fluid dispensed from gun is relatively clear. ti27160a 13. Circulate water through sprayer, into waste pail, for 20 seconds.

  • Page 27: Cleaning Instaclean ™ Fluid Filter

    Cleanup Clean the Gun ™ Cleaning InstaClean Fluid Filter Perform Pressure Relief Procedure, page 13 and remove battery, see (Optional) Battery Installation and Removal, page 12 The InstaClean Fluid Filter prevents particles from entering paint hose. After each use, Clean gun fluid filter with water or flush- remove and clean it to ensure peak ing fluid and a brush every time you performance.

  • Page 28: Storage

    Storage Storage With proper storage, the sprayer will be ready Place Prime/Spray valve in PRIME to use the next time it is needed. position. Always circulate Pump Armor storage fluid through system after cleaning. Water left in sprayer will corrode and damage pump. Follow Cleanup, page 23, or Power Flush, page 25.

  • Page 29: Reference

    Reference Reference Understanding Tip Number Spray Tip Selection The last three digits of tip number (i.e.: 221413) contain information about hole size and fan width on surface when gun is held 12 Selecting Tip Size in. (30.5 cm) from surface being sprayed. Spray tips come in a variety of hole sizes for First digit when doubled spraying a range of fluids.

  • Page 30: Cleaning Fluid Compatibility

    Reference Cleaning Fluid Compatibility • When spraying water-based materials, flush the system thoroughly with water. • When spraying oil-based or flammable materials, flush the system thoroughly with mineral spirits or compatible flushing solvent. When flushing with solvents, always follow Grounding Instructions, page 9.

  • Page 31: Quick Reference

    Reference Quick Reference Page 8 Name Description ON/OFF switch Turns sprayer ON and OFF. Pressure control knob Increases (clockwise) and decreases (counter-clockwise) fluid pressure in pump, hose, and spray gun. To select function, align symbol on pressure control knob with setting indicator, page Gun fluid inlet fitting Threaded connection for airless hose.

  • Page 32: Maintenance

    • Purchase a pump repair kit and install according to instructions provided with ti27463a kit, before your next job. • See Pump Assembly, page 42 or con- sult a Graco authorized retailer, distrib- utor, or service center. 3A8429A...
  • Page 33 Maintenance Inlet Valve Removal Slide pump assembly off the mounting pins. An integrated tool is included in the frame to remove the inlet valve assembly from the pump. If you suspect that the inlet valve is clogged or stuck, remove the valve assembly and clean or replace.
  • Page 34 Maintenance Clean any debris and dried paint from Swing easy access door pump door the cavity and replace the ball and closed while pushing the entire door spring. Tighten inlet valve to pump towards the inlet end of the pump. using integrated tool on the frame.

  • Page 35: Troubleshooting

    If not frozen, check for hardened paint in pump. If paint has hardened in pump. See Pump Removal, page 32. If motor does not turn with pump repaired, consult a Graco authorized retailer, distributor, or service center. Motor or control is damaged. Consult a Graco authorized retailer, distributor, or service center.
  • Page 36 Suction tube is leaking. Inspect suction tube connection for cracks or vacuum leaks. Outlet valve check ball is stuck. Unscrew outlet valve, remove, and clean assembly. Prime/Spray Valve is worn or obstructed Take sprayer to Graco authorized with debris. service center. 3A8429A...
  • Page 37 Troubleshooting Problem Cause Solution Pump is primed, but can not achieve Spray tip may be partially clogged. Clear spray tip clog. See, Clear Tip good spray pattern. Clog, page 22. Reversible spray tip is in UNCLOG Rotate arrow-shaped handle on spray position.
  • Page 38 Choose spray tip with narrower fan. Make sure gun is close enough to surface. Fan pattern varies dramatically while Pressure control switch is worn and Take sprayer to Graco authorized spraying. causing excessive pressure variation. service center. Cannot trigger spray gun.
  • Page 39 Notes Notes 3A8429A...

  • Page 40: Gx21 Cordless Airless Sprayer Parts

    GX21 Cordless Airless Sprayer Parts GX21 Cordless Airless Sprayer Parts Ref. Torque Ref. Torque Ref. Torque 110-120 in-lb (12 - 14 N•m) 35-45 in-lb (4.0 - 5.0 N•m) 180-220 in-lb (20.3-24.9 N•m) 30-35 in-lb (3.5 - 4.0 N•m) 23-27 in-lb (2.6 - 3.0 N•m) 8-10 in-lb (0.9 - 1.2 N•m)
  • Page 41 GX21 Cordless Airless Sprayer Parts Parts List Ref. Part Description Qty. Ref. Part Description Qty. 20A166 CHARGER, fast, DEWALT, 20A066 KIT, motor, includes 34 54V, EMEA (not shown) 17J869 KIT, gear and yoke, includes 20A529 LABEL, front 20A530 LABEL, left...

  • Page 42: Pump Assembly

    Pump Assembly Pump Assembly Ref. Torque Ref. Torque 140-160 in-lb (16 - 18 N•m) 220-250 in-lb (25 - 28 N•m) 270-330 in-lb (30 - 37 N•m) 320-380 in-lb (36 - 43 N•m) 30-35 ft-lb (40 - 48 N•m) 180-220 in-lb (20 - 25 N•m) 3A8429A...
  • Page 43 Pump Assembly Pump Assembly Parts List ipres Ref. Part Description Qty. 17G447 HOUSING, pump 17D364 GUIDE, ball 128336 SPRING, compression 105445 BALL, 0.5 in. 117501 SCREW, mach, slot HWH 17J876 KIT, inlet housing, includes 2, 3, 4, 6a 124582 PACKING, O-ring 17J878 KIT, PushPrime, includes 7a, 7b...

  • Page 44: Wiring Diagrams

    Wiring Diagrams Wiring Diagrams 3A8429A...

  • Page 45: Technical Specifications

    Technical Specifications Technical Specifications GX 21 Cordless Sprayer Metric Sprayer Maximum fluid working pressure 3000 psi 207 bar, 20.7 MPa Maximum Delivery 0.47 gpm 1.8 lpm Maximum Tip Size 0.021 in. 0.053 mm Fluid Outlet npsm 1/4 in. 1/4 in. Power Requirements See Models, page 3, for power requirements.

  • Page 46: California Proposition 65

    California Proposition 65 California Proposition 65 CALIFORNIA RESIDENTS WARNING: Cancer and reproductive harm – www.P65warnings.ca.gov. 3A8429A...

  • Page 47: Graco Standard Warranty

    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.

  • Page 48: Graco Information

    For the latest information about Graco products, visit www.graco.com. For patent information, see www.graco.com/patents. TO PLACE AN ORDER, 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.

This manual is also suitable for:

25t97325t967

Table of Contents