GRACO 17E841 - GMAX II 7900 HD 3-in-1 Standard Series Gas Airless Sprayer

The GMAX II 7900 HD is a gas-powered airless sprayer delivering unmatched durability and everyday reliability. Built to handle the widest range of tip sizes, longer hose lengths, and heavier coatings with ease. Designed to save time and money by delivering superior performance and versatility for spraying paints, primers, heavy coatings, and texture finishes.

Built with must-have features that are designed to save you time and money, the GMAX II 5900 HD delivers topnotch performance and versatility. Whether you need to spray skim coat in a Level 5 finish, drywall mud in an orange peel, splatter or knockdown finish or even the wide range of primers, paints and other heavy coatings, this sprayer can handle just about any task you need it to. Doing the job just got easier with Graco.

Work Smarter, Finish More Jobs. GMAX II HD ProContractor Series airless texture sprayers are designed to deliver improved 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
  • Lasts 6X longer between repacks with innovative MaxLife technology
  • Oversized passages for high velocity flow to rotate piston for even wear
  • Longest life packings and piston rod
  • Long life ceramic and stainless steel balls included for maximum versatility
• MaxFlo 2 with Pack-Out Protection
  • Less pack-out, more productivity
  • Self-cleaning Vibra-Seal Technology eliminates material build-up
  • Continuous spraying with True Pack-Out Protection for more productivity
  • Optimized fluid passageways for the heaviest coatings
• SmartControl 3.0 Pressure Control
  • Consistent spray fan & pressure control
  • Ideal for low overspray applications with the lowest dead band at any pressure
• Precision Advantage Drive
  • The longest lasting drive
  • Improved joist conditions with extremely quiet operation
  • Lifetime Warranty
• ProConnect 2 Pump Replacement System
  • Eliminate costly downtime
  • Exchange pump in minutes
  • No tools, pins or parts to lose
• 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
• LED Display
  • Easy-to-read display provides quick reference to show:
    • Pressure read-out
    • Job/lifetime/gallon counter
    • Self-diagnostics
• Honda® GX Engine
  • Reliable, powerful & easy-to-start
  • Oil Alert shuts down engine to prevent damage if oil level drops too low
• Crushproof Inlet Strainer
  • Durable filtration
  • Stands up to harsh impacts to maintain even flow through filter
• Additional Features:
  • Rugged, Durable Cart Design
  • Heavy-Duty Prime Valve
  • Easy Out Pump Filter
  • WatchDog Pump Protection System

Additional Specifications

• Flow Rate: 2.20 GPM (8.3 LPM)
• Engine Options: Honda GX or Kohler CommandPro
• Pump Type: Endurance Piston Pump
• Application: architectural paints and coatings
• Use: professional use only
• Explosive Atmosphere: Not approved for use in European explosive atmosphere locations

Compatible Replacement Pump	25E689
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)	6.5
Engine Size (kW)	4.85
Features	Endurance MaxLife Pump, MaxFlo 2, SmartControl 3.0, Advantage Drive, Honda Engine, Easy Out Filter, Heavy-Duty Prime Valve
Fluid Inlet Size (in)	1-5/16
Fluid Inlet Thread Type	UN-2A
Fluid Outlet Size (in)	3/8
Fluid Outlet Thread Type	NPSM
Frame Configuration	Cart
Hose Inlet Diameter (in)	3/8
Includes	Heavy-Duty Blue Texture Gun, RAC X LTX 427 Spray Tip, RAC X LTX 531 Spray Tip, RAC X Guard, 3/8 in x 50 ft BlueMax II Airless Hose, 1/4 in x 3 ft BlueMax II Airless Whip Hose
Inlet Paint Strainer	8 Mesh Stainless Steel Screen
Maximum Flow Rate (GPM)	2.2
Maximum Sound Pressure Level (dB(A))	96
Maximum Tip Size (in)	0.048
Maximum Tip Size 1 Gun (in)	0.048
Maximum Tip Size 2 Guns (in)	0.035
Maximum Tip Size 3 Guns (in)	0.027
Maximum Tip Size 4 Guns (in)	0.023
Maximum Working Pressure (MPa)	22.8
Maximum Working Pressure (psi)	3300
Model	GMAX II HD
Number of Guns	4
Outlet Paint Filter	60 Mesh Stainless Steel Screen
Overall Height (in)	40.5
Overall Length (in)	38.1
Overall Width (in)	24.4
Power Rating (HP)	6.5
Power Rating (W)	4847
Power Rating (kW)	4.85
Power Source	Gas
Pressure Control Type	SmartControl 3.0
Product Series	Standard
Pump Mount Type	QuikChange
Pump Rod Type	MaxLife
Pump Sleeve Material	MaxLife
Recommended Annual Usage	100-200 gallons per week
Series	7900
Type	Airless Sprayer
Weight (lb)	153

Features

• Endurance Piston Pump with 2X longer life than leading brands
• Long-life ceramic and stainless steel balls for maximum versatility
• SmartControl for consistent spray fan and pressure control
• Easy Out Pump Filter with exclusive inside-out filtering
• Heavy-Duty Prime Valve for high-pressure dumping
• Advantage Drive with hardened steel gears and lifetime warranty

Applications

• Paints
• Primers
• Heavy coatings
• Texture finishes
• Wide range of coating applications requiring high pressure and flow

Compatible Equipment

• Honda GX engines
• Kohler CommandPro engines
• Tips up to 0.035
• Longer hose lengths
• Heavy coating materials
• TexSpray 7900HD Airless Sprayer

Related Parts

• 17E839 - GMAX II 5900 HD, 17E839K - GMAX II 5900 HD with Kohler engine
• 17E825 - GMAX 3400
• 17E827 - GMAX II 3900
• 17E826 - GMAX II 3900 Lo-Boy
• 17E831 - GMAX II 5900
• 17E829 - GMAX II 5900 Lo-Boy
• 17E830 - GMAX II 5900 Convertible
• 17E836 - GMAX II 7900
• 17E834 - GMAX II 7900 Lo-Boy

Part of the GMAX II HD Standard Series. Available with choice of Honda GX (17E841) or Kohler engine (17E841K). Features MaxLife Pistion Pump offering 2X longer life. This appears to be a standard configuration for the TexSpray 7900HD model in the airless sprayer product line. Related manual reference: 3A6417 for parts, Honda Engine Manual for engine specifications. Part of GMAX airless sprayers family. Not approved for use in European explosive atmosphere locations. Manual reference 3A6417L.

Reference Manuals

• 3J0296EN-A (Page 2)
• 3A6400 (Page 1)
• 3A6417 (Page 1)