Graco GMAX 3400 Operation
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Graco GMAX 3400 Operation

Airless sprayers
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See also: Repair Manual , Operating Manual
Operation
™
GMAX
3400, GMAX
TexSpray 5900HD/7900HD Airless Sprayers
For the application of architectural paints and coatings. For professional use only.
Not approved for use in European explosive atmosphere locations.
3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this manual and in gas engine manual before using
the equipment. Be familiar with the controls and the proper usage of the equipment.
Save these instructions.
Related Manuals:
Parts
3A6417
Honda Engine Manuals
Model
GMAX 3400
GMAX II 3900
GMAX II 5900
GMAX II 5900
Convertible
GMAX II 7900
TexSpray 5900HD
TexSpray 7900HD
GMAX 3400
GMAX II 3900
GMAX II 5900
GMAX II 7900
GMAX II 7900
Roof Rig
TexSpray 5900HD
TexSpray 7900HD
™
II 3900/5900/7900, and
Standard
ProContractor
17E825
17E827
17E831
17E830
17E836
17E839
17E841
17G997
17G999
17E828
17H810
17E832
17H818
17E837
17H819
17E840
17H820
17E842
Lo-Boy
Ironman
17E826
17E829
17E834
17G998
17H808
17E833
17H817
17E838
17E835
17E843
3A6400A
ti23055a
EN

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Summary of Contents for Graco GMAX 3400

  • Page 1 Be familiar with the controls and the proper usage of the equipment. Save these instructions. Related Manuals: Parts 3A6417 Honda Engine Manuals Model Standard ProContractor Lo-Boy Ironman GMAX 3400 17E825 GMAX II 3900 17E827 17E826 GMAX II 5900 17E831 17E829 GMAX II 5900 17E830 Convertible...

  • Page 2: Table Of Contents

    Spray ....... . . 18 Graco Information ......46 Clearing Tip Clogs .

  • Page 3: Warning

    Warning Warning The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclamation point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific hazard symbols and warnings not covered in this section may appear throughout the body of this manual where applicable.

  • Page 4: Electric Motor Warnings

    All parts of the spray system, including the pump, hose assembly, spray gun, and objects in and around the spray area shall be properly grounded to protect against static discharge and sparks. Use Graco conductive or grounded high-pressure airless paint sprayer hoses.

  • Page 5: Internal Combustion Engine Warnings

    Warning Internal Combustion Engine Warnings WARNING FIRE AND EXPLOSION HAZARD Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. Paint or solvent flowing through the equipment can cause static sparking. To help prevent fire and explosion: •...

  • Page 6: Electric Motor/Internal Combustion Engine

    Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 3300 psi (228 bar, 22.8 MPa). Use Graco parts or accessories that are rated a minimum of 3300 psi (228 bar, 22.8 MPa).
  • Page 7 Warning WARNING PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemical reaction and equipment rupture. Failure to follow this warning can result in death, serious injury, or property damage. • Do not use 1,1,1-trichloroethane, methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents.

  • Page 8: Component Identification

    Component Identification Component Identification Standard Models (3400, 3900, 5900, 5900HD, 7900, 7900HD) Strainer Engine ON/OFF Switch Pump Grounding Clamp Engine Controls Pump On/Off Switch Drain Hose Pressure Control Easy Out Pump Filter Prime Valve Hose Gun Trigger Lock 3A6400A...

  • Page 9: Procontractor Models

    Component Identification ProContractor Models (3900, 5900, 7900, 5900HD, 7900HD) Drain hose Grounding Coil Pump Smart Control 3.0 Display Rod Pull Feature Pump ON/OFF Switch Engine Controls WatchDog Switch ProConnect II Pump Clamp Pressure Control Filter Prime Valve Engine ON/OFF Switch Gun Trigger Lock QuikReel Strainer...

  • Page 10: Ironman Models (5900, 7900, 7900Hd)

    Component Identification Ironman Models (5900, 7900, 7900HD) Drain Hose Grounding Coil MaxLife Pump Smart Control 3.0 Display Rod Pull Feature Pump ON/OFF Switch Engine Controls WatchDog Switch ProConnect II Pump Clamp Pressure Control Easy Out Pump Filter Prime Valve Engine ON/OFF Switch Gun Trigger Lock Hose (not shown) Heavy Duty Strainer...

  • Page 11: Lo-Boy Models (3900, 5900, 7900)

    Component Identification Lo-Boy Models (3900, 5900, 7900) Pump Engine ON/OFF Switch Drain Hose Grounding Coil Rod Pull Feature Pump ON/OFF Switch Strainer Pressure Control Engine Controls Prime Valve Gun Trigger Lock ProConnect II Pump Clamp Hose Easy Out Pump Filter 3A6400A...

  • Page 12: Convertible Models (5900)

    Component Identification Convertible Models (5900) Strainer Engine ON/OFF Switch Pump Grounding Coil Engine Controls Pump On/Off Switch Drain Hose Pressure Control Easy Out Pump Filter Prime Valve Power Pack Gun Trigger Lock Hose 3A6400A...

  • Page 13: Pressure Relief Procedure

    Pressure Relief Procedure Grounding Pressure Relief Procedure Follow the Pressure Relief Procedure whenever Grounding Procedure for you see this symbol. Internal Combustion Engine The equipment must be grounded to reduce the risk of static sparking. Static sparking can cause fumes to This equipment stays pressurized until pressure is ignite or explode.

  • Page 14: Grounding Of Pails

    Grounding Grounding Procedure for Grounding of Pails Electric Motor (Convertible Solvent pails used when flushing: Follow local code. Models only) Use only conductive metal pails, placed on a grounded surface. Do not place the pail on a non-conductive surface, such as paper or cardboard, which interrupts grounding continuity.

  • Page 15: Setup

    5. Fill throat packing nut with TSL to prevent premature packing wear. Do this each time you spray. 1. All sprayers except ProContractor: Connect appropriate Graco high-pressure hose to sprayer. 2. Select Units: Install whip hose to fluid inlet of spray gun and tighten securely. ti22743a 6.

  • Page 16: Convertible Models Only

    Setup Convertible Models Only 4. Install motor; drop in and push forward. Change Gas Engine to Electric Motor 1. Disconnect engine power cord. ti22703a 5. Look through side vent holes and ensure drive belt is in motor pulley. ti5774a 2. Release tension bar. ti5772a 6.

  • Page 17: Startup

    Startup Startup c. Set throttle to fast. ti5250a 1. Place suction tube and drain tube in grounded metal d. Set engine switch to ON. pail partially filled with flushing fluid. Attach ground wire to pail and to earth ground. ti5262a 5.

  • Page 18: Switch Tip ™ Guard Assembly

    Startup ™ 8. Hold gun against grounded metal flushing pail. Switch Tip Guard Assembly Trigger gun and increase fluid pressure slowly until pump runs smoothly. To avoid serious injury from skin injection do not put your hand in front of the spray tip when installing or removing the spray tip and tip guard.

  • Page 19: Clearing Tip Clogs

    Startup Clearing Tip Clogs ™ WatchDog Protection System (ProContractor and Ironman units only) Pump stops automatically when material pail is empty. To avoid injury, never point gun at your hand or into a To Activate: rag! 1. Perform Startup. 1. Release trigger, engage trigger lock. Rotate Switch 2.

  • Page 20: Quikreel

    ™ QuikReel (ProContractor units only) ™ QuikReel (ProContractor units only) 3. Pull reel handle down and out. Turn clockwise to reel in hose. To avoid injury, keep your head clear of hose reel while winding up hose. 1. Make sure hose is routed through hose guide. ti22745a NOTE: The QuikReel can be locked into two positions: Usage (A) and Storage (B).

  • Page 21: Led Display

    LED Display LED Display (ProContractor and Ironman units) Change Display Units Press and hold DTS button for 5 seconds to change Operation Main Menu pressure units (psi, bar, MPa) to desired units. Selection of bar or MPa changes gallons to liters x 10. Short press to move to next display.
  • Page 22 LED Display Job Gallons Lifetime Gallons 1. Short press DTS button to move to Lifetime Gallons 1. Short press DTS button to move to Job Gallons (or (or liters x 10). liters x 10). NOTE: LIFE scrolls briefly, then the number of gallons sprayed above 1000 psi (70 bar, 7 MPa) displays.
  • Page 23 LED Display Secondary Menu - Stored Data and WatchDog Pump Protection Modes 1. Perform Pressure Relief, steps 1 - 4 if they have 5. Short press DTS button. LAST ERROR CODE not already been done. scrolls by and last error code is displayed; e.g. E=07.
  • Page 24 LED Display 7. Short press DTS button. W-DOG scrolls past then 9. Short press to move to SOFTWARE REV. OFF displays if watchdog switch is OFF. ON displays if Watchdog switch is ON. 8. Press and hold (8 seconds) DTS button to move to WatchDog Trigger % menu.

  • Page 25: Cleanup

    Cleanup Cleanup d. Set engine switch to ON. ti5262a 1. Perform Pressure Relief Procedure, page 13, steps 1 - 4. Remove siphon tube set from paint and 3. Pull rope to start engine. place in flushing fluid. Remove tip guard from gun. ti5263a ti14844a 4.
  • Page 26 Cleanup 8. Turn prime valve forward to SPRAY position. 11. Remove filters from gun and sprayer, if installed. Trigger gun into flushing pail to purge fluid from Clean and inspect. Install filters. hose. ti14847a ti14845a 9. Raise siphon tube above flushing fluid and run sprayer for 15 to 30 seconds to drain fluid.

  • Page 27: Maintenance

    Maintenance Maintenance Perform Pressure Relief Procedure, page 13, before performing maintenance. NOTE: For detailed engine maintenance and specifications, refer to separate Honda Engines Owner's Manual, supplied. DAILY: Check engine oil level and fill as necessary. DAILY: Check hose for wear and damage. DAILY: Check that all hose fittings are secure.

  • Page 28: Troubleshooting

    Clean or replace spark plug. Start engine. Keep sprayer upright to avoid oil seepage. False tripping of WatchDog system. Operating conditions out of WatchDog Turn pressure down. Contact Graco Technical EMPTY is displayed. Pump does not parameters. Assistance to adjust WatchDog parameters.
  • Page 29 F, the resistance must be between for 3900 - 1.2 + 0.2 Ω, for 5900/7900 1.7 ± 0.2 Ω; if not, replace pinion housing. Have pressure control checked by authorized Graco dealer. Clutch is worn, damaged, or incorrectly Adjust or replace clutch. See page 39. positioned.
  • Page 30 Troubleshooting Problem Cause Solution Excessive paint leakage into throat Throat packing nut is loose. Remove throat packing nut spacer. Tighten packing nut throat packing nut just enough to stop leakage. Throat packings are worn or damaged. Replace packings (see pump manual). Displacement rod is worn or damaged.

  • Page 31: Fluid Pump Runs Constantly

    Troubleshooting Fluid Pump Runs Constantly 1. Perform Pressure Relief Procedure, page 13, turn prime valve forward to SPRAY position, and turn power switch OFF. 2. Remove control box cover. Troubleshooting Procedure: Pump problem. See the proper fluid pump With a pressure gauge plumbed into the paint manual for the sprayer for further hose, start the engine.

  • Page 32: Control Board Malfunction

    Troubleshooting Control Board Malfunction Troubleshooting Procedure (see following page for actual steps): Remove control box cover. Turn sprayer ON. Observe control board Green and Red LED lights. Go to step 1. No light Replace the Does switch switch. Once Normal operation test positive? Red light on Control board...

  • Page 33: Control Board Malfunction (Steps)

    Troubleshooting Control Board Malfunction (Steps) STEP 3. STEP 1. STEP 2. Leave engine Turn engine Turn engine 12 -20 AC BEEP 10-12 DC running and turn OFF and set ON. Set meter switch ON. Turn meter to to AC volts and potentiometer to connect wires continuity.

  • Page 34: Convertible Electric Motor Will Not Run

    Troubleshooting Convertible Electric Motor Will Not Run Troubleshooting Procedure (see following page for actual steps): See step 2. Is there Repair or replace See Step 1. Is there the power cord. over 100 AC volts? over 100 AC volts? Replace the power switch. If engine is hot, let See Step 4.

  • Page 35: Convertible Electric Motor Will Not Run (Steps)

    Troubleshooting Convertible Electric Motor Will Not Run (Steps) STEP 2. STEP 1. Plug in cord and turn Plug in cord and turn switch ON. Connect switch ON. Connect wires to control board wires to control board and turn meter to AC and turn meter to AC volts.

  • Page 36: Convertible Electric Motor Runs - No Ac Output To Sprayer Control Board

    Troubleshooting Convertible Electric Motor Runs - No AC Output to Sprayer Control Board Troubleshooting Procedure (see following page for actual steps): See step 1. See step 2. Repair or replace Is there over 10-20 Is there continuity? the power cord. AC volts? Repair or replace See step 3.
  • Page 37 Troubleshooting Convertible Electric Motor Runs - No AC Output to Sprayer Control Board (Steps) STEP 1. STEP 2. 10-20 AC Plug in cord and turn Check AC power cord BEEP switch ON. Connect for an open wire. Turn wires to transformer meter to continuity and power cord.

  • Page 38: Led Display Messages

    Check fluid path for clogs, such as clogged filter. is running. Open prime valve and gun if running AutoClean. Use Graco paint hose, 1/4 in. x 50 ft minimum. Smaller hose or metal braid hose may result in pressure spikes.

  • Page 39: Pinion Assembly/Clutch Armature/Clamp

    Pinion Assembly/Clutch Armature/Clamp Pinion Assembly/Clutch Armature/Clamp 6. Remove retaining ring (29b). 7. Turn pinion assembly over and tap pinion shaft (29a) out with plastic mallet. Perform Pressure Relief Procedure, page 13, before performing these tasks. Pinion Assembly/Clutch Armature Removal Pinion Assembly If pinion assembly (29) is not removed from clutch housing (19), do 1.

  • Page 40: Installation

    Face of clutch housing 3. Install retaining ring (29b) with beveled side facing 1.550 ± .010 in. (39.37 ± .25 mm) - GMAX 3400 and 3900 2.612 ± .010 in. (66.34 ± .25 mm) - GMAX 5900 and 7900 4. Place pinion assembly on bench with rotor side up.

  • Page 41: Technical Data

    Technical Data Technical Data 3400 Models U.S. Metric Engine Honda GX120 Engine Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa Maximum Tip Size: 0.027 in. tip 0.027 in. tip Maximum Delivery Rating 0.75 gpm 2.84 lpm 12 mesh (1523 micron) 12 mesh (1523 micron) Inlet Paint Strainer stainless steel screen, reusable...
  • Page 42 Technical Data 3900 Models U.S. Metric Engine Honda GX120 Engine Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa 1 Gun with 0.036 in. tip 1 Gun with 0.036 in. tip Maximum Tip Size: 2 Guns with 0.023 in. tip 2 Guns with 0.023 in.
  • Page 43 Technical Data 5900 Models U.S. Metric Engine Honda GX160 Engine Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa 1 Gun with 0.043 in. tip 1 Gun with 0.043 in. tip 2 Guns with 0.029 in. tip 2 Guns with 0.029 in. tip Maximum Tip Size: 3 Guns with 0.023 in.
  • Page 44 Technical Data 7900 Models U.S. Metric Engine Honda GX200 Engine Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa 1 Gun with 0.048 in. tip 1 Gun with 0.048 in. tip 2 Guns with 0.035 in. tip 2 Guns with 0.035 in. tip Maximum Tip Size: 3 Guns with 0.027 in.

  • Page 45: Graco Standard Warranty

    With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.

  • Page 46: Graco Information

    For patent information, see www.graco.com/patents. TO PLACE AN ORDER, contact your Graco distributor or call 1-800-690-2894 to identify the nearest distributor. All written and visual data contained in this document reflects the latest product information available at the time of publication.

This manual is also suitable for:

Gmax ii 3900Gmax ii 7900Texspray 5900hdTexspray 7900hdGmax ii 5900

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