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Operation
™
GMAX II 3900/5900/5900HD/5900 Convertible/7900
TexSpray 5900HD Convertible/7900HD
3A0242A
Airless Sprayers
ENG
- For Portable Airless Spraying of Architectural Coatings and Paints -
3300 psi (22.8 MPa, 228 bar) Maximum Working Pressure
IMPORTANT SAFETY INSTRUCTIONS
Read all warnings and instructions in this
manual. Save these instructions.
GMAX 3900
Model Hi-Boy Hi-Boy Lo-Boy Lo-Boy
Premium Standard Premium Standard
(QuikReel) (QuikReel)
248683 ✓
248684 ✓
249335 ✓
258731 ✓
258736 ✓
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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 ap- pear in the body of this manual, 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. WARNING FIRE AND EXPLOSION HAZARD Flamma
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Warning WARNING PRESSURIZED ALUMINUM PARTS HAZARD Use of fluids that are incompatible with aluminum in pressurized equipment can cause serious chemi- cal 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. � Many other fluids may contain chemicals that can react with aluminum. Contact your material
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Component Identification Component Identification 14. 1. ON 13. OFF 2. 12. 3. 4. ON 11. OFF 5. 10. 7. 8. 9. 6. ti14980a 1 Engine ON/OFF Switch 2 Premium Digital Display ™ 3 WatchDog Switch 4 Pump On/Off Switch 5 Pressure Control 6Prime Valve 7 Suction Tube Inlet Filter 8 Strainer 9Pump ™ 10 ProConnect 11 Drain Hose 12 Trigger Lock 13 Engine Controls 14 Hose Reel 4 3A0242A
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Pressure Relief Procedure Pressure Relief Procedure 5. Lock gun trigger safety. 6. Open pressure drain valve. Leave valve open until ready to spray again. If you suspect that the spray tip or hose is completely 1. Lock gun trigger safety. clogged, or that pressure has not been fully relieved after following the steps above, VERY SLOWLY loosen 2. Turn engine ON/OFF switch to OFF. tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Now clear 3
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Setup Convertible Models Only: Change Engine to Motor 1. Disconnect engine power cord. 5. Look through side vent holes and ensure drive belt is in motor pulley. ti5774a ti5772a 2. Release tension bar. 6. Secure motor with tension bar. 3. Remove engine; tilt and slide back. 7. Plug in pressure control power cord. ti5779a ti5776a 4. Install motor; drop in and push forward. ti5777a 6 3A0242A
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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. ti14844a ti5262a 5. Pull rope to start engine. 2. Turn prime valve down to DRAIN position. Turn pressure control counterclockwise to lowest pres- sure. ti5789a ti5263a 6. Increase pressure enough to start pump stroking ti14842a and allow fluid to circulate for 15 seconds;
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Startup 8. Hold gun against grounded metal flushing pail. Trig- Switch Guard Assembly ger gun and increase fluid pressure slowly until pump runs smoothly. 1. Put trigger safety ON. Insert SwitchTip. Insert seat ™ . and OneSeal C A B ti5796a ti13243a Inspect fittings for leaks. Do not stop leaks with your hand or a rag! If leaks occur, turn sprayer OFF 2. Insert SwitchTip. immediately. Perform Pressure Relief Procedure steps 1-3, page 5. Tighten leaky fittings. Repeat Startup procedure ste
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™ WatchDog Protection System (Not Available on All Units) Clearing Tip Clogs Hose Reel 1. Release trigger, put safety ON. Rotate SwitchTip. Take safety OFF. Trigger gun to clear clog. Never point gun at your hand or into a rag! Be sure to keep your head clear of hose reel while winding up hose. ti13033a 1. Make sure hose is routed through hose guide. ti10166a ti10167a 2. Put safety ON. Return SwitchTip to original position. Take safety OFF and continue spraying. ti10166a ti10167a ti13504a ti
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Digital Tracking System Digital Tracking System 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. liters x 10). Psi ti13612a ti13620a ti13605a ti13610a 1. Turn pressure to lowest setting. Trigger gun to relieve pressure. Turn prime valve down to DRAIN NOTE: JOB scrolls past, then the number of gallons position. sprayed above 1000 psi (70 bar, 7 MPa) displays. Li
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Digital Tracking System Secondary Menu - Stored Data and WatchDog Pump Protection Modes 1. Perform Pressure Relief, steps 1 - 4 if they have 6. Press and hold DTS button to clear error code to not already been done. zero. 2. Turn power switch on while holding DTS button down. ti4266a ti13609a ti13606a ti13605a 7. Short press DTS button. W-DOG scrolls past then OFF displays if watchdog switch is OFF. ON dis- 3. The sprayer model briefly displays (e.g. 5900), plays if Watchdog switch is ON. S
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Cleanup Cleanup 6. Turn prime valve forward to SPRAY position. Trigger gun into flushing pail to purge fluid from hose. 1. Perform Pressure Relief Procedure (page 5), steps 1 - 4. Remove siphon tube set from paint and place in flushing fluid. Remove tip guard from gun. ti14847a ti14845a 7. Raise siphon tube above flushing fluid and run sprayer for 15 to 30 seconds to drain fluid. Turn power OFF ti14844a NOTE: Use water for water-base paint, mineral spirits for oil-base paint, or other sol
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Notes Notes 3A0242A 13
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Notes Notes 14 3A0242A
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Notes Notes 3A0242A 15
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Graco Standard Warranty Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in material and workmanship on the date of sale to the original purchaser for use. 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 warranty applies only
