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GMAX II 3900
GMAX II 3900 Standard Series Gas Airless Sprayer, Lo-Boy
Part Number: 17E826
GMAX II 3900
GMAX II 3900 Standard Series Gas Airless Sprayer, Lo-Boy
Part Number: 17E826
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.
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Product Brochure
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
- Jobsite Ready
- Includes RAC X SwitchTip and 50 ft of BlueMax II hose
Specifications & Documents
Technical Specifications
Convert to Metric| Construction | 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 (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 LP 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) | 2983 |
| Power Rating (kW) | 2.98 |
| Power Source | Gas |
| Pressure Control Type | SmartControl 3.0 |
| Product Series | Standard |
| 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 |
| Construction | 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 |
| 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 Size (mm) | 33.34 |
| Fluid Inlet Thread Type | UN-2A |
| Fluid Outlet Size (in) | 1/4 |
| Fluid Outlet Size (mm) | 6.35 |
| Fluid Outlet Thread Type | NPSM |
| Frame Configuration | Lo-Boy |
| Hose Inlet Diameter (cm) | 0.635 |
| Hose Inlet Diameter (in) | 1/4 |
| Hose Inlet Diameter (mm) | 6.35 |
| Includes | Contractor PC Gun, RAC X LP 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 (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 (bar) | 228 |
| Maximum Working Pressure (kPa) | 22800 |
| Maximum Working Pressure (psi) | 3300 |
| 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 (W) | 2983 |
| Power Rating (cc) | 120 |
| Power Rating (kW) | 2.98 |
| Power Source | Gas |
| Pressure Control Type | SmartControl 3.0 |
| Product Series | Standard |
| 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 |
Product Manuals
Warranty
Sales Literature
Certifications
MSD201EN, Loctite 567 Low Strength Thread Sealant, Safety Data Sheet, English
(141 KB)
(English Only)
What's Included
| Part No. | Description | Qty | Unit |
|---|---|---|---|
| 246215 | RAC X HandTite Tip Guard | 1 | ea |
| 240794 | BlueMax II Airless Hose, 1/4 in x 50 ft | 1 | ea |
| 238049 | TSL Throat Seal Liquid, 4 oz | 1 | ea |
| 17Y043 | Contractor PC Airless Spray Gun with RAC X LP 517 SwitchTip | 1 | ea |
| LP517 | Low Pressure RAC X LP SwitchTip, 517 | 2 | ea |
Repair Parts
| Part No. | Description |
|---|---|
| 244068 | Easy Out Pump Manifold Filter, Long, 100 mesh |
| 244069 | Easy Out Pump Manifold Filter, Long, 200 mesh |
| 244071 | Easy Out Pump Manifold Filter, Long, 30 mesh |
| 244067 | Easy Out Pump Manifold Filter, Long, 60 mesh |
| 24U917 | HOSE,SUCTION, 30 / 50 GALLON |
| 17A095 | KIT, REPAIR, CONTROL BOARD, GMAX |
| 257352 | Q KIT, REPAIR, PRIME VALVE, HD |
| 243222 | Pressure Control Transducer Repair Kit |
| 16Y760 | KIT, REPAIR, TUBE, SUCTION, 7900 |
| 15C980 | NUT, JAM |
| 15H854 | O-RING |
| 117285 | PACKING, O-RING |
| 15V573 | Q STRAINER, CRUSH PROOF,1-11 1/2 NPSM |
| 116752 | SWITCH, ROCKER |
| 15C766 | TUBE, DIFFUSION |
| 15F171 | TUBE, SUCTION, 30/50 GAL |
| 115099 | Hose Washer Inlet Seal |
| 15C981 | WASHER, SUCTION, SWVL |
| 246331 | KIT, ACCY, DRAIN |
| 17Y042 | Contractor PC Airless Spray Gun with RAC X 517 SwitchTip |
| 240794 | BlueMax II Airless Hose, 1/4 in x 50 ft |
