GMAX II 3900

GMAX II 3900 ProContractor Series Gas Airless Sprayer

Part Number: 17E828

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GMAX II 3900

GMAX II 3900 ProContractor Series Gas Airless Sprayer

Part Number: 17E828

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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Features

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.

Work Smarter, Finish More Jobs. Graco GMAX ProContractor Series gas-powered airless paint sprayers are designed to deliver speed & performance so you can get to the next jobsite faster and increase your profits.

  • Endurance Vortex MaxLife Piston Pump
    • Superior pump life
    • Breakthrough vortex rotating rod technology
    • Repack the pump in minutes with the new QuikPak Cartridge System
    • Lasts 6X longer between repacks with innovative MaxLife technology
    • Oversized passages for high velocity flow to rotate piston for even wear
    • Repack pump in minutes with new QuikPak cartridge repair system
  • ProConnect 2 Pump Replacement System
    • Pump swaps in 1-minute or less – no tools, pins or parts to lose
    • Eliminate costly downtime
  • QuikReel Hose Management System
    • Easy hose management
    • Deploy and rewind up to 300 feet (90 meters) of hose in seconds
    • No twisting, kinking, and coiling
    • Use only the hose you need — the rest stays on the reel
  • Crushproof Inlet Strainer
    • Durable filtration
    • Stands up to harsh impacts to maintain even flow through filter
  • 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
  • WatchDog Pump Protection System
    • Automatically prevents pump damage if material supply is too low
  • Precision Advantage Drive
    • The longest lasting drive
    • Improved jobsite conditions with extremely quiet operation
    • Lifetime Warranty
  • 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
  • Additional Features:
    • Easy Out Pump Filter
    • Heavy-Duty Prime Valve
    • LED Display
    • Rugged, Durable Cart Design

Specifications & Documents

Technical Specifications

Convert to Metric
Compatible Material Primers, Stains, Acrylics, Enamel, Latex, Interior Paint, Exterior Paint
Compatible Replacement Pump 17H823
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 Vortex MaxLife Pump, SmartControl 3.0, QuikReel, Honda Engine, Advantage Drive, ProConnect 2, LED Display, Easy Out Filter, Crushproof Inlet Strainer, WatchDog, Contractor PC Gun
Filter Mesh Size 60
Fluid Hose Inside Diameter (in) 1/4
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 Hi-Boy
Hose Inlet Diameter (in) 1/4
Hose Reel Type QuikReel
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 Fluid Working Pressure (psi) 3300
Maximum Hose Length (ft) 100
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 1
Outlet Paint Filter 60 Mesh Stainless Steel Screen
Overall Height (in) 38.3
Overall Length (in) 32.3
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 ProContractor
Pump Mount Type ProConnect 2
Pump Rod Type MaxLife
Pump Sleeve Material MaxLife
Pump Type Endurance Vortex
Recommended Annual Usage Up to 500 gallons per week
Series 3900
Spray Gun Type Contractor PC Pro Gun
Spray Type Airless
Type Airless Sprayer
Weight (lb) 133
Compatible Material Primers, Stains, Acrylics, Enamel, Latex, Interior Paint, Exterior Paint
Compatible Replacement Pump 17H823
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 Vortex MaxLife Pump, SmartControl 3.0, QuikReel, Honda Engine, Advantage Drive, ProConnect 2, LED Display, Easy Out Filter, Crushproof Inlet Strainer, WatchDog, Contractor PC Gun
Filter Mesh Size 60
Fluid Hose Inside Diameter (in) 1/4
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 Hi-Boy
Hose Inlet Diameter (cm) 0.635
Hose Inlet Diameter (in) 1/4
Hose Inlet Diameter (mm) 6.35
Hose Reel Type QuikReel
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 Fluid Working Pressure (psi) 3300
Maximum Hose Length (m) 30
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) 227
Maximum Working Pressure (kPa) 22700
Maximum Working Pressure (kg/cm²) 22.7
Maximum Working Pressure (psi) 3300
Model GMAX II
Number of Guns 1
Outlet Paint Filter 60 Mesh Stainless Steel Screen
Overall Height (cm) 97.3
Overall Height (mm) 972.8200
Overall Length (cm) 82
Overall Length (mm) 820.42
Overall Width (cm) 56.6
Overall Width (mm) 619.7600
Power Rating (W) 2983
Power Rating (cc) 120
Power Rating (kW) 2.98
Power Source Gas
Pressure Control Type SmartControl 3.0
Product Series ProContractor
Pump Mount Type ProConnect 2
Pump Rod Type MaxLife
Pump Sleeve Material MaxLife
Pump Type Endurance Vortex
Recommended Annual Usage Up to 500 gallons per week
Series 3900
Spray Gun Type Contractor PC Pro Gun
Spray Type Airless
Type Airless Sprayer
Weight (kg) 61

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 1 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
240794 BlueMax II Airless Hose, 1/4 in x 50 ft
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
16Y759 KIT, REPAIR, TUBE, SUCTION, 39/59
16Y760 KIT, REPAIR, TUBE, SUCTION, 7900
16Y496 KIT,DISPLAY, GMAX, PREMIUM
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

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