Table of Contents
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Operation, Parts
Electric Airless
Sprayers
For professional use only.
Not approved for use in explosive atmospheres or hazardous locations.
For portable airless spraying of architectural paints and coatings.
190/290/390 PC Classic Models:
3000 psi (207 bar, 20.7 MPa) Maximum Working Pressure
3300 psi (228 bar, 22.8 MPa) Maximum Working Pressure
See page 3 for additional model information.
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 – 311861 (Contractor/FTx) 312830 (SG3)
Use only genuine Graco replacement parts.
The use of non-Graco replacement parts may void warranty.
Related Manuals
334567E
Pump – 334599
EN
ti25126a
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Table of Contents
Related Manuals for Graco 190 PC Classic
Summarization of Contents
Operation and Safety Overview
Electric Airless Sprayers Introduction
Overview of electric airless sprayers for professional use.
Important Safety Instructions
Key safety guidelines for operating the equipment.
Model Configurations
Stand, Lo-Boy, and Hi-Boy Models
Table detailing sprayer models across different configurations.
Warnings
Grounding and Extension Cords
Essential safety information regarding electrical grounding and extension cord usage.
Fire and Explosion Hazards
Precautions to prevent ignition and explosion from flammable materials.
Skin Injection and Equipment Misuse Hazards
Critical warnings about high-pressure injection risks and general equipment misuse.
Electrical, Material, and PPE Safety
Safety information on electric shock, material hazards, toxic fluids, and personal protective equipment.
Component Identification
Stand Models Components
Diagram and list identifying parts of stand models.
Lo-Boy Models Components
Diagram and list identifying parts of Lo-Boy models.
Hi-Boy Models Components
Diagram and list identifying parts of Hi-Boy models.
Grounding Procedures
Power Requirements and Extension Cords
Specifications for power supply and guidelines for using extension cords.
Pail Grounding
Instructions for grounding pails to ensure safety and continuity.
Pressure Relief Procedure
Steps for Relieving Pressure
Detailed steps to safely relieve pressure in the sprayer system.
Trigger Lock Operation
Explanation and illustration of how to use the trigger lock.
Setup Procedures
Connecting Hose and Gun
Instructions for connecting the airless hose to the sprayer and gun.
Preparing the Sprayer for Use
Steps for filling throat packing nut and ensuring ON/OFF switch is off.
Flushing and Initial Setup
Procedures for flushing storage fluid and preparing for startup.
Startup
Initial Startup Steps
Performing pressure relief, setting pressure, and connecting to paint.
Leak Inspection and Tip Installation
Checking for leaks and installing the spray tip assembly.
Operation
Spray Tip Installation
Detailed instructions on how to install the spray tip and components.
Spraying Techniques
Guidance on achieving a test pattern and adjusting pressure.
Clearing a Clogged Spray Tip
Steps to take when the spray tip becomes clogged during operation.
Cleanup Procedures
Steps for cleaning the sprayer after use, including flushing.
Flushing System Thoroughly
Detailed steps for flushing the system with fluids to prevent damage.
Final Flushing and Wiping
Completing the flush, disconnecting power, and wiping down components.
Maintenance
Routine Maintenance Schedule
Table outlining required maintenance activities and their intervals.
Troubleshooting
Mechanical and Fluid Flow Issues
Diagnosing and resolving problems related to pump output and fluid flow.
Pump Output and Motor Issues
Addressing low pump output and motor-related troubleshooting steps.
Fluid Spitting and Priming Difficulties
Troubleshooting fluid spitting from the gun and issues with priming the pump.
Electrical Troubleshooting
Diagnosing issues when the sprayer does not run, stops, or won't shut off.
Motor Rotation and Thermal Switch Checks
Testing motor rotation and checking the thermal switch for functionality.
Motor Armature and Short Circuit Checks
Performing checks for motor armature resistance and potential shorts.
Sprayer Shutdown and Basic Electrical Issues
Troubleshooting sprayer shutdown problems and general electrical connections.
Sprayers Parts Overview
Stand Model Component Breakdown
Diagram illustrating parts for stand models with torque specifications.
Lo-Boy Model Component Breakdown
Diagram illustrating parts for Lo-Boy models with torque specifications.
Stand Sprayer Parts List
Detailed list of parts for 190, 290, 390 Stand sprayer models.
390 Lo-Boy Sprayer Parts
Component Breakdown for Lo-Boy
Diagram illustrating parts for the 390 Lo-Boy sprayer.
Lo-Boy Model Parts Identification
Detailed illustration of parts for the 390 Lo-Boy sprayer.
Lo-Boy Sprayer Parts List
Comprehensive list of parts for the 390 Lo-Boy sprayer model.
190, 290, 390 Hi-Boy Sprayers Parts
Component Breakdown for Hi-Boy
Diagram illustrating parts for the 190, 290, 390 Hi-Boy sprayer.
Hi-Boy Model Parts Identification
Detailed illustration of parts for the 190, 290, 390 Hi-Boy sprayer.
Hi-Boy Sprayer Parts List
Comprehensive list of parts for the 190, 290, 390 Hi-Boy sprayer models.
Accessories and Labels
Model-Specific Accessories and Labels
Table correlating sprayer models with specific accessories and label part numbers.
Control Box and Filter
Control Box and Filter Components
Diagram illustrating components of the control box and filter assembly.
Control and Filter Parts List
Detailed list of parts for the control box and filter components.
Model-Specific Control and Filter Specifications
Table detailing manifold, indicator, and control part numbers by sprayer model.
Wiring Diagrams
110/120V Wiring Diagram
Schematic illustrating the electrical connections for 110/120V models.
230V Wiring Diagram
Schematic illustrating the electrical connections for 230V models.
Technical Specifications
Sprayer Performance Specifications
Table detailing maximum pressure, delivery, and tip size specifications.
Dimensions, Weight, Noise, and Materials
Specifications for physical dimensions, weight, noise levels, and construction materials.
Graco Standard Warranty
Warranty Terms and Conditions
Details of Graco's standard warranty, exclusions, and limitations.
Graco Information
Contact and Publication Information
Information for contacting Graco, product updates, and company details.
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