Graco GMAX 3400 Operation
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Graco GMAX 3400 Operation

Airless sprayer
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See also: Repair Manual , Operation
Operation
™
GMAX
3400, GMAX
TexSpray 5900HD/7900HD Airless Sprayers
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. Save these instructions.
Model:
Standard
✓
16W863
Model:
Standard
ProContractor
✓
16W865
16W866
16W867
16W984
Model:
Standard
ProContractor
16W869
✓
16W870
16W871
16W881
16W873
Model:
Standard
ProContractor
16W883
✓
16W884
16W885
16W887
16W987
Model:
Standard
ProContractor
✓
16W889
16W882
Model:
Standard
ProContractor
✓
16W890
16W888
16X949
™
II 3900/5900/7900, and
For professional use only.
Not approved for use in European explosive atmosphere locations.
For the application of architectural paints and coatings.
GMAX 3400
GMAX II 3900
Lo-Boy
RentalPro
360G
✓
✓
GMAX II 5900
Lo-Boy
Ironman
✓
✓
GMAX II 7900
Lo-Boy
Ironman
✓
✓
TexSpray 5900HD
✓
TexSpray 7900HD
Ironman
✓
✓
✓
Convertible
✓
✓
Roof Rig
✓
✓
332919C
ti23055a
Related Manuals:
Parts
332921
EN

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Summary of Contents for Graco GMAX 3400

  • Page 1 For the application of architectural paints and coatings. 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. Save these instructions. GMAX 3400 Model: Standard ✓ 16W863...

  • Page 2: Table Of Contents

    Hose Reel Graco Standard Warranty ....38 (ProContractor units only) ....16...

  • Page 3: Warning

    Check hoses and parts for signs of damage. Replace any damaged hoses or parts. • This system is capable of producing 3300 psi (22.8 MPa, 228 bar). Use Graco replacement parts or accessories that are rated a minimum of 3300 psi (22.8 MPa, 228 bar).
  • Page 4 Warning WARNING EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury. • Do not operate the unit when fatigued or under the influence of drugs or alcohol. • Do not exceed the maximum working pressure or temperature rating of the lowest rated system component. See Technical Data in all equipment manuals.

  • Page 5: Component Identification

    Component Identification Component Identification Standard Models (3400, 3900, 5900, 5900HD, 7900, 7900HD) ti22694a 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 332919C...

  • Page 6: Procontractor Models

    Component Identification ProContractor Models (3900, 5900, 7900, 5900HD, 7900HD) ti22742a ti22742a Pump Grounding Coil Toolbox 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 Hose Reel Strainer...

  • Page 7: Ironman Models (5900, 7900, 7900Hd)

    Component Identification Ironman Models (5900, 7900, 7900HD) ti22741a 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...

  • Page 8: Lo-Boy Models (3900, 5900, 7900)

    Component Identification Lo-Boy Models (3900, 5900, 7900) ti22737a Drain Hose Engine ON/OFF Switch Rod Pull Feature Grounding Coil Strainer Pump ON/OFF Switch Engine Controls Pressure Control Prime Valve ProConnect II Pump Clamp Gun Trigger Lock Easy Out Pump Filter Hose Pump 332919C...

  • Page 9: Convertible Models (5900)

    Component Identification Convertible Models (5900) ti22696a 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 332919C...

  • Page 10: Pressure Relief Procedure

    Pressure Relief Procedure Grounding Pressure Relief Procedure Follow the Pressure Relief Procedure whenever you see this symbol. The equipment must be grounded to reduce the risk of static sparking. Static sparking can cause fumes to ignite or explode. Grounding provides an escape wire for the electric current.

  • Page 11: Setup

    5. Fill throat packing nut with TSL to prevent prema- ture 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.

  • Page 12: Convertible Models Only

    Setup Convertible Models Only: 5. Look through side vent holes and ensure drive belt is in motor pulley. Change Engine to Motor 1. Disconnect engine power cord. ti5772a 6. Secure motor with tension bar. ti5774a 2. Release tension bar. ti5775a ti5775a 3.

  • Page 13: Startup

    Startup Startup c. Set throttle to fast. 1. Place suction tube and drain tube in grounded metal ti5250a pail partially filled with flushing fluid. Attach ground wire to pail and to earth ground. d. Set engine switch to ON. ti5262a ti14844a 5.

  • Page 14: Switch Tip ™ Guard Assembly

    Startup ™ 8. Hold gun against grounded metal flushing pail. Trig- Switch Tip Guard Assembly ger gun and increase fluid pressure slowly until pump runs smoothly. 1. Perform Pressure Relief Procedure, page 10. 2. Engage gun trigger lock. Insert Switch Tip. Insert ™...

  • Page 15: Clearing Tip Clogs

    ™ WatchDog Protection System (ProContractor and Ironman units only) 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.

  • Page 16: Hose Reel

    Hose Reel (ProContractor units only) Hose Reel (ProContractor units only) 3. Pull reel handle down and 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 hose reel can be locked into two posi- tions: Usage (A) and Storage (B).

  • Page 17: Digital Tracking System (Procontractor And Ironman Units)

    Digital Tracking System (ProContractor and Ironman units) Digital Tracking System (ProContractor and Ironman units) Operation Main Menu Job Gallons Short press to move to next display. Press and hold (5 1. Short press DTS button to move to Job Gallons (or seconds) to change units or reset data.
  • Page 18 Digital Tracking System (ProContractor and Ironman units) Secondary Menu - Stored Data and WatchDog Pump Protection Modes 1. Perform Pressure Relief, steps 1 - 4 if they have 7. Short press DTS button. W-DOG scrolls past then OFF displays if watchdog switch is OFF. ON dis- not already been done.

  • Page 19: Cleanup

    Cleanup Cleanup 3. Pull rope to start engine. 1. Perform Pressure Relief Procedure (page 10), steps 1 - 4. Remove siphon tube set from paint and place in flushing fluid. Remove tip guard from gun. ti5263a 4. Turn pump switch ON. Turn prime valve forward to SPRAY position.
  • Page 20 Cleanup 9. Raise siphon tube above flushing fluid and run 12. If flushing with water, flush again with mineral spirits, sprayer for 15 to 30 seconds to drain fluid. Turn or Pump Armor, to leave a protective coating to pre- pump switch and engine OFF vent freezing or corrosion.

  • Page 21: Maintenance

    Maintenance Maintenance Pressure Relief Procedure DAILY: Check level of TSL in displacement pump pack- ing nut. Fill nut, if necessary. Keep TSL in nut to help prevent fluid buildup on piston rod and premature wear of packings and pump corrosion. AFTER THE FIRST 20 HOURS OF OPERATION: 1.

  • Page 22: 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 23 Troubleshooting Problem Cause Solution Pump output is low Strainer is clogged. Clean strainer. Piston ball is not seating. Service piston ball (see pump manual). Piston packings are worn or damaged. Replace packings (see pump manual). O-ring in pump is worn or damaged. Replace o-ring (see pump manual).

  • Page 24: Fluid Pump Runs Constantly

    Troubleshooting Fluid Pump Runs Constantly 1. Perform Pressure Relief Procedure (page 21), 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 trouble- hose, start the engine.

  • Page 25: 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 26: 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 27: Convertible Electric Motor Will Not Run

    Troubleshooting Convertible Electric Motor Will Not Run Troubleshooting Procedure (see following page for actual steps): Repair or replace See step 2. Is there 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 28: 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 29: 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 30 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 31: Digital 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 32: Pinion Assembly/Clutch Armature/Clamp

    Pinion Assembly/Clutch Armature/Clamp Pinion Assembly/Clutch Armature/Clamp Pinion Assembly/Clutch Armature Removal 6. Remove retaining ring (29b). 7. Turn pinion assembly over and tap pinion shaft Pinion Assembly (29a) out with plastic mallet. If pinion assembly (29) is not removed from clutch hous- ing (19), do 1.

  • Page 33: Installation

    Face of clutch housing 5. Apply thread sealant to screws. Install four screws 1.550 ± .010 in. (39.37 ± .25 mm) - GMAX 3400 and 3900 (28) and lock washers (24). Alternately torque 2.612 ± .010 in. (66.34 ± .25 mm) - GMAX 5900 and 7900 screws to 125 in-lb until rotor is secure.

  • Page 34: Technical Data

    Technical Data Technical Data 3400 Models U.S. Metric Engine Honda GX120 Engine ANSI Power Rating @ 3600 rpm 4.0 Horsepower 3.0 kW Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa 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 35 Technical Data 3900 Models U.S. Metric Engine Honda GX120 Engine ANSI Power Rating @ 3600 rpm 4.0 Horsepower 3.0 kW Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa Maximum Delivery Rating 1.25 gpm 4.73 lpm 8 mesh (2589 micron) 8 mesh (2589 micron) Inlet Paint Strainer stainless steel screen, reusable...
  • Page 36 Technical Data 5900 Models U.S. Metric Engine Honda GX160 Engine ANSI Power Rating @ 3600 rpm 5.5 Horsepower 4.1 kW Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa Maximum Delivery Rating 1.6 gpm 6.06 lpm 8 mesh (2589 micron) 8 mesh (2589 micron) Inlet Paint Strainer stainless steel screen, reusable...
  • Page 37 Technical Data 7900 Models U.S. Metric Engine Honda GX200 Engine ANSI Power Rating @ 3600 rpm 6.5 Horsepower 6.5 kW Sprayer Maximum Working Pressure 3300 psi 228 bar, 22.8 MPa Maximum Delivery Rating 2.2 gpm 8.33 lpm 8 mesh (2589 micron) 8 mesh (2589 micron) Inlet Paint Strainer stainless steel screen, reusable...

  • Page 38: 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.

This manual is also suitable for:

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

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