GRACO 17E826 - GMAX II 3900 Standard Series Gas Airless Sprayer Lo-Boy, Chromex Piston
GMAX II 3400 Standard Series airless sprayer designed for everyday reliability with unmatched durability and performance. Features the most reliable pump with Endurance Chromex Piston technology, easy maintenance capabilities, and rugged construction for handling the widest range of tip sizes, longer hose lengths, and heavier coatings with ease.
Producing 65% more performance than the GMAX 3400, the GMAX II 3900 has the power and flow to handle up to two guns and is ideal for the professional contractor who sprays a wide variety of coatings.
Everyday Reliability. Graco GMAX Standard Series gas-powered airless paint sprayers deliver unmatched durability and performance, with the capability to handle the widest range of tip sizes, longer hose lengths and heavier coatings with ease.
- Endurance Chromex Piston Pump
- The most reliable pump
- Lasts 2X Longer than the next leading brand
- Repack the pump in minutes with the new QuikPak Cartridge System
- QuikChange pump design allows you to swap the pump easily on the job
- Faster cleaning with the QuikAccess intake foot valve
- ProConnect 2 Pump Replacement System
- Pump swaps in 1-minute or less – no tools, pins or parts to lose
- Eliminate costly downtime
- SmartControl 3.0
- Consistent spray fan & pressure control
- Handles the widest range of coatings with the most consistent fan pattern
- Lowest dead band at any pressure
- Precision Advantage Drive
- The longest lasting drive
- Hardened steel gears provide extremely quiet operation
- Lifetime Warranty
- Easy Out Pump Filter
- Easy maintenance & less clogging
- Exclusive inside-out filtering won't collapse to ensure a quality finish
- Vertical design for less mess
- Heavy-Duty Prime Valve
- Maintenance-free design withstands high-pressure dumping
- Durable Cart Design
- Rugged and easy-to-maneuver
- Thick chrome over steel and pneumatic wheels for tough jobsite conditions
- Convenient retractable bucket hook allows for easy movement on the job
- Honda® Engine
- Reliable, powerful & easy-to-start
- Oil Alert shuts down engine to prevent damage if oil level drops too low
- Contractor Preferred
- Contractor PC Spray Gun
- All-day comfort & control
- Lightest weight gun in its class
- Up to 50% lighter trigger pull force
- E-Z Fit adjustable trigger length
- Complete gun rebuild in seconds with ProConnect cartridge
- More info: graco.com/ContractorPC
- Jobsite Ready
- Includes RAC X SwitchTip and 50 ft of BlueMax II hose
Additional Specifications
- Material: Chromex Piston
- Series: Standard
- Model: 3400
- Application: architectural paints and coatings
- Usage: professional use only
| Convertible | Non-Convertible |
| Engine Brand | Honda |
| Engine Size (HP) | 4 |
| Features | Endurance Chromex Pump, ProConnect 2, SmartControl 3.0, Honda Engine, Advantage Drive, Easy Out Filter, Heavy-Duty Prime Valve, Contractor PC Gun |
| Fluid Inlet Size (in) | 1-5/16 |
| Fluid Inlet Thread Type | UN-2A |
| Fluid Outlet Size (in) | 1/4 |
| Fluid Outlet Thread Type | NPSM |
| Frame Configuration | Lo-Boy |
| Hose Inlet Diameter (in) | 1/4 |
| Includes | Contractor PC Gun, RAC X LTX 517 Spray Tip, RAC X Guard, 1/4 in x 50 ft BlueMax II Airless Hose, TSL 4 oz |
| Inlet Paint Strainer | 8 Mesh Stainless Steel Screen |
| Maximum Flow Rate (GPM) | 1.25 |
| Maximum Sound Pressure Level (dB(A)) | 96 |
| Maximum Tip Size (in) | 0.036 |
| Maximum Tip Size 1 Gun (in) | 0.036 |
| Maximum Tip Size 2 Guns (in) | 0.023 |
| Maximum Working Pressure (MPa) | 22.8 |
| Maximum Working Pressure (psi) | 3300 |
| Model | GMAX II |
| Number of Guns | 2 |
| Outlet Paint Filter | 60 Mesh Stainless Steel Screen |
| Overall Height (in) | 26.4 |
| Overall Length (in) | 46.9 |
| Overall Width (in) | 24.4 |
| Power Rating (HP) | 4.0 |
| Power Rating (W) | 2982.8 |
| Power Rating (kW) | 2.98 |
| Power Source | Gas |
| Pressure Control Type | SmartControl 3.0 |
| Pump Mount Type | ProConnect 2 |
| Pump Rod Type | Chromex |
| Pump Sleeve Material | Stainless Steel |
| Pump Type | Endurance |
| Recommended Annual Usage | Up to 500 gallons per week |
| Series | 3900 |
| Type | Airless Sprayer |
| Weight (lb) | 123 |
| Wetted Material | Acetal, Aluminum, Chrome Plating, Fluoroelastomer, Leather, Nylon, PTFE, Polyurethane, Stainless Steel, Tungsten Carbide, UHMWPE, Zinc-Plated Carbon Steel, Nickel-Plated Carbon Steel |
| Convertible | Non-Convertible |
| Engine Brand | Honda |
| Engine Size (HP) | 4 |
| Features | Endurance Chromex Pump, ProConnect 2, SmartControl 3.0, Honda Engine, Advantage Drive, Easy Out Filter, Heavy-Duty Prime Valve, Contractor PC Gun |
| Fluid Inlet Size (cm) | 3.334 |
| Fluid Inlet Size (mm) | 33.34 |
| Fluid Inlet Thread Type | UN-2A |
| Fluid Outlet Size (cm) | 0.635 |
| Fluid Outlet Size (mm) | 6.35 |
| Fluid Outlet Thread Type | NPSM |
| Frame Configuration | Lo-Boy |
| Hose Inlet Diameter (cm) | 0.635 |
| Hose Inlet Diameter (mm) | 6.35 |
| Includes | Contractor PC Gun, RAC X LTX 517 Spray Tip, RAC X Guard, 1/4 in x 50 ft BlueMax II Airless Hose, TSL 4 oz |
| Inlet Paint Strainer | 8 Mesh Stainless Steel Screen |
| Maximum Flow Rate (L/min) | 4.73 |
| Maximum Sound Pressure Level (dB(A)) | 96 |
| Maximum Tip Size (cm) | 0.09144 |
| Maximum Tip Size (mm) | 0.9144 |
| Maximum Tip Size 1 Gun (cm) | 0.09144 |
| Maximum Tip Size 1 Gun (mm) | 0.9144 |
| Maximum Tip Size 2 Guns (cm) | 0.05842 |
| Maximum Tip Size 2 Guns (mm) | 0.5842 |
| Maximum Working Pressure (MPa) | 22.8 |
| Maximum Working Pressure (bar) | 228 |
| Maximum Working Pressure (kPa) | 22800 |
| Model | GMAX II |
| Number of Guns | 2 |
| Outlet Paint Filter | 60 Mesh Stainless Steel Screen |
| Overall Height (cm) | 67.1 |
| Overall Height (mm) | 671 |
| Overall Length (cm) | 119.1 |
| Overall Length (mm) | 1191 |
| Overall Width (cm) | 62 |
| Overall Width (mm) | 620 |
| Power Rating (HP) | 4.0 |
| Power Rating (W) | 2982.8 |
| Power Rating (cc) | 120 |
| Power Rating (kW) | 2.98 |
| Power Source | Gas |
| Pressure Control Type | SmartControl 3.0 |
| Pump Mount Type | ProConnect 2 |
| Pump Rod Type | Chromex |
| Pump Sleeve Material | Stainless Steel |
| Pump Type | Endurance |
| Recommended Annual Usage | Up to 500 gallons per week |
| Series | 3900 |
| Type | Airless Sprayer |
| Weight (kg) | 56 |
| Wetted Material | Acetal, Aluminum, Chrome Plating, Fluoroelastomer, Leather, Nylon, PTFE, Polyurethane, Stainless Steel, Tungsten Carbide, UHMWPE, Zinc-Plated Carbon Steel, Nickel-Plated Carbon Steel |
Features
- Endurance Chromex Piston Pump - lasts 2X longer than next leading brand
- Easy Out Pump Filter for faster cleaning and fewer tip clogs
- QuikChange pump design allows pump swap in minutes
- Consistent spray fan and pressure control with SmartControl technology
- Heavy-Duty Prime Valve for maintenance-free high-pressure durning
- Durable cart design with thick chrome over steel frame
Applications
- Everyday painting applications
- Wide range of coatings including heavier materials
- Professional painting contractors
- Maintenance and repair work
- Professional contracting
- Large scale painting projects
Compatible Equipment
- Wide range of tip sizes
- Longer hose lengths
- Various coating types
- Honda engines
- Kohler engines
- GMAX II series accessories
Related Parts
- 17E825 - GMAX II 3400 Standard
- 17E327 - GMAX II 3900 Standard
- 17E331 - GMAX II 5900 Standard
- 17E336 - GMAX II 7900 Standard
- 17E825 - GMAX II 3900 Standard
- 17E827 - GMAX II 3900 Standard
- 17E828 - GMAX II 3900 ProContractor
- 17E829 - GMAX II 3900 Lo-Boy ProContractor
- 17E827, 2012514 (EMEA)
Part of the GMAX II Standard Series focusing on everyday reliability and durability. Features Honda engine option and various pressure switch configurations. Part of GMAX II 3900 series with Lo-Boy cart configuration for easier maneuverability and transport Gas airless sprayer for professional use only. Not approved for use in European explosive atmosphere locations. Related manuals: Parts 3A6417, Honda Engine Manual.
Reference Manuals
