Table of Contents
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Operation, Parts
GX21, GX19, and GX FF 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
FinishPro GX19 Models: 25U341, 25U855
GX FF Models: 25U466, 25U570
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.
Related Manuals
312830 (SG3)
Gun (GX21)
3A6285
Contractor PC Compact Gun (GX19, GX FF)
3A3172
Pump
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.
3A8429B
www.graco.com/techsupport
EN
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Table of Contents
Related Manuals for Graco 25U341
Summarization of Contents
Safety Information
Important Grounding Information
Guidance on grounding wire and clamp usage for different material types to prevent static discharge.
General Warnings
Alerts for fire, explosion, and grounding hazards when using oil-based or flammable materials.
Hazard Identification
Details on skin injection, equipment misuse, and related safety precautions.
Chemical and PPE Hazards
Information on chemical compatibility, toxic fluids, and essential personal protective equipment.
Know Your Sprayer
GX21 Component Identification
Diagram and list identifying parts of the GX21 cordless airless sprayer.
GX19 and GX FF Component Identification
Diagram and list identifying parts of the GX19 and GX FF cordless airless sprayers.
Setup
Battery Installation and Removal
Instructions for inserting and removing the DEWALT battery pack from the sprayer.
Operation
Flush Storage Fluid
Procedure to flush factory test material from the system before first use.
Fill Pump
Steps for filling the pump with paint for both stand and hopper models.
Fill Gun and Hose
Process for filling the airless spray gun and hose with paint.
How to Spray
Spray Tip Installation
Guide on correctly installing the spray tip and tip guard to prevent leaks.
Spraying Controls and Adjustments
How to adjust pressure control and select appropriate spray tips for materials.
Spray Techniques and Pattern Quality
Tips for aiming, achieving good spray patterns, and clearing tip clogs.
Cleanup
Cleaning From a Pail (Stand Models)
Steps for flushing the sprayer using a pail for stand models.
Power Flush
Method for faster flushing of the sprayer using water-based materials.
Hopper Flushing
Procedure for cleaning hopper models using flushing fluid.
Cleaning Filters and Gun
Instructions for cleaning the InstaClean fluid filter and the spray gun.
Storage
Proper Storage Procedures
Steps for preparing the sprayer for storage, including using Pump Armor.
Reference
Spray Tip Selection
Guidance on choosing the correct spray tip size and fan width for different materials.
Cleaning Fluid Compatibility
Information on suitable flushing fluids for water-based and oil-based materials.
Quick Reference
Table summarizing sprayer components, their function, and related pages.
Maintenance
Hose and Tip Maintenance
Routine inspection and cleaning of airless hoses and spray tips.
Pump Repair
Instructions for addressing leaks from worn pump packings.
Pump Removal
Steps for safely removing the pump assembly from the sprayer.
Pump Installation
Procedure for correctly installing the pump assembly back into the sprayer.
Troubleshooting
Motor Issues and Power Problems
Diagnosing and resolving issues where the motor does not run or the sprayer has power problems.
Priming and Pressure Issues
Troubleshooting causes and solutions for the sprayer not priming or losing prime.
Spray Pattern and Performance Issues
Addressing problems with spray pattern quality, material flow, and sprayer stopping.
Coverage and Leakage Issues
Solutions for inadequate coverage, leaks, and intermittent motor operation.
Parts
GX21 Cordless Airless Sprayer Parts List
Detailed list of replacement parts for the GX21 cordless airless sprayer.
GX19 and GX FF Parts List
Detailed list of replacement parts for GX19 and GX FF portable hopper sprayers.
Pump Assembly Parts List
List of components specifically for the pump assembly.
Wiring Diagrams
Sprayer Electrical Connections
Diagram illustrating the electrical connections between the power switch, pressure control, and motor.
Technical Specifications
Sprayer Performance Data
Table detailing maximum pressure, delivery, tip sizes, dimensions, and operating conditions.
Graco Standard Warranty
Warranty Terms and Conditions
Details of Graco's limited warranty for equipment, exclusions, and claims process.
Graco Information
Product Information and Ordering
Contact information for product support, ordering, and locating distributors.
Need help?
Do you have a question about the 25U341 and is the answer not in the manual?
Questions and answers