Graco Pro 270GS Operation
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Graco Pro 270GS Operation

Graco Pro 270GS Operation

Airless sprayer
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Operation
Pro 270GS Airless Sprayer
For the application of architectural paints and coatings. For professional use only.
3000 psi (20.7 MPa, 207 bar) Maximum Working Pressure
Important Safety Instructions
Read all warnings and instructions in this
manual and in the gasoline engine manual.
Save these instructions.
Related Manuals
3A2821
312830
312015
Pro 270GS
Model: 262866
3A2818A
EN
ti5944a

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Summary of Contents for Graco Pro 270GS

  • Page 1 Operation 3A2818A Pro 270GS Airless Sprayer For the application of architectural paints and coatings. For professional use only. 3000 psi (20.7 MPa, 207 bar) Maximum Working Pressure Important Safety Instructions Read all warnings and instructions in this manual and in the gasoline engine manual.
  • Page 2 Warnings Warnings The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama- tion 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 3 Warnings 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 compo- nent.
  • Page 4 Warnings WARNING RECOIL HAZARD Gun may recoil when triggered. If you are not standing securely, you could fall and be seriously injured. P ERSONAL PROTECTIVE EQUIPMENT Wear appropriate protective equipment when in the work area to help prevent serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns.

  • Page 5: Component Identification

    Component Identification Component Identification ti16978a ti9667a 3A2818A...
  • Page 6 Component Identification Engine Controls Controls engine starting and speed Engine ON/OFF Switch Shuts engine OFF Pump ON/OFF Switch Controls pump operation Increase (clockwise) and decreases (counter-clockwise) fluid pressure in Pressure control knob pump, hose, and spray gun. • In PRIME position (pointing down) directs fluid to prime tube. •...

  • Page 7: Grounding Procedure

    Grounding Procedure Grounding Procedure Pails (For Flammable Materials Only) • Solvent and oil/based fluids: follow local code. Use only conductive metal pails, placed on a grounded surface such as concrete. This equipment must be grounded to reduce the risk of static sparking.

  • Page 8: Operation

    Operation Operation Trigger Lock 3. Trigger gun to relieve pressure. Always engage the trigger lock when you stop spraying to prevent the gun from being triggered accidentally by hand or if dropped or bumped. ti2599a DÉCHETS 4. Turn prime valve down. ti8908a ti8909a Trigger Unlocked...
  • Page 9 Setup Setup 1. Turn pump switch OFF. Turn engine switch OFF. 5. Connect other end of hose to sprayer. ti5971a 2. Turn Pressure Control Knob all the way left ti5946a (counter-clockwise) to minimum pressure. Verify prime valve is down. NOTE: If hose is already connected, make sure connec- tions are tight.

  • Page 10: Prime And Flush Storage Fluid

    Setup Prime and Flush Storage Fluid Engine Preparation Before you use your sprayer for the first time or begin a new spraying project, you need to prime the sprayer and NOTE: Refer to Engine Owner’s Manual for detailed flush the storage fluid out of the sprayer. safety, operation and service information.
  • Page 11 Startup Startup 1. Place suction tube and drain tube in grounded metal b. Move choke to closed. pail partially filled with flushing fluid. Attach ground wire to pail and to earth ground. ti5249a c. Set throttle to fast. PAINT FLUSH ti5955a 2.
  • Page 12 Startup 5. Set pump switch ON. Pump/clutch is now active. 8. Hold gun against grounded metal flushing pail. Trigger gun and increase fluid pressure slowly until pump runs smoothly. ti5958a ti5961a 6. Increase pressure enough to start pump stroking and allow fluid to circulate for 15 seconds; turn Inspect fittings for leaks.

  • Page 13: Install Tip And Guard On Gun

    Startup Install Tip and Guard on Gun Spraying Techniques Preventing Excessive Tip Wear • Spray should be atomized (evenly distributed, no gaps at edges). Start at low pressure setting, 1. Engage trigger lock. increase pressure a little at a time until you see a good spray pattern, without tails.
  • Page 14 Startup Getting Started Unclogging Spray Tip Use a piece of scrap cardboard to practice these basic spraying techniques before you begin spraying the sur- face. Do not operate or spray near children. Do not aim the • Hold gun 12 in. (30 cm) from surface and aim sprayer at, or spray any person or animal.
  • Page 15 Startup 4. Engage trigger lock. Rotate spray tip back to SPRAY 6. If the tip is still clogged, you may have to repeat position. steps 1 - 5 and rotate the tip from SPRAY to UNCLOG several times. To help reduce tip clogs: •...

  • Page 16: Shutdown And Cleaning

    Shutdown and Cleaning Shutdown and Cleaning Flushing 6. Place prime tube in waste pail. • For short term shutdown periods (overnight to two days) refer to Short Term Storage, page 19. • For flushing after spraying oil-based coatings, use compatible oil-based flushing fluid or mineral spirits. Read Priming and Flushing Storage Fluid, page 10.
  • Page 17 Shutdown and Cleaning 12. Turn pump switch OFF. 14. While continuing to trigger gun, quickly move gun to redirect spray into waste pail. Continue triggering gun into waste pail until flushing fluid dispensed from gun is relatively clear. ti5971a ti9745a NOTE: Step 13 is for returning paint in hose back to PAINT WASTE...

  • Page 18: Cleaning Gun

    Shutdown and Cleaning Cleaning Gun • Clean gun fluid filter (d) with water or flushing sol- vent and a brush every time you flush the system. Replace gun filter if damaged. ti9668a • Remove tip and guard and clean with water or flush- ing solvent.

  • Page 19: Short-Term Storage

    Storage Storage Short Term Storage Long Term Storage (up to 2 days) (more than 2 days) 1. Relieve pressure, page 8. NOTE: Always circulate Pump Armor storage fluid through system after cleaning. Water left in sprayer will 2. Leave suction tube and prime tube in paint pail. corrode and damage pump.

  • Page 20: Stowing Sprayer

    Storage Stowing Sprayer 5. When storage fluid comes out of prime tube (5-10 seconds) turn pump and engine switches OFF. NOTICE • Before storing sprayer make sure all water is drained out of sprayer and hoses. • Do not allow water to freeze in sprayer or hose. •...

  • Page 21: Maintenance And Service

    When pump packings wear, paint will begin to leak down outside of pump. • Replace pump packings at first sign of leaking or additional damage could occur. • Purchase a pump repair kit and install according to instructions provided with kit. • Consult a Graco authorized service center. 3A2818A...

  • Page 22: Troubleshooting

    Displacement pump piston rod is Repair pump. Manual 312015 stuck due to dried paint Connecting rod is worn or damaged Take sprayer to a Graco authorized service center. Drive housing is worn or damaged Take sprayer to a Graco authorized service center.
  • Page 23 Inlet valve check ball or seat is dirty Remove inlet fitting. Clean or replace ball and seat. Outlet valve check ball is stuck. Take sprayer to Graco authorized service center. Suction tube is leaking. Tighten suction tube connection. Inspect for cracks or vacuum leaks.
  • Page 24 Troubleshooting Problem Cause Solution Pump cycles, but paint only dribbles Pressure is set too low. Slowly turn Pressure Control Knob or spurts when spray gun is trig- clockwise to increase pressure set- gered. ting which will turn motor on to build pressure.
  • Page 25 Choose tip with narrower fan. Make sure gun is close enough to surface. Fan pattern varies dramatically while Pressure control switch is worn and Take sprayer to Graco authorized spraying. causing excessive pressure variation. service center. Sprayer does not begin pumping promptly when resuming spraying.

  • Page 26: Technical Data

    Technical Data Technical Data Working pressure range 0-3000 psi (0-21 MPa, 0-207 bar) Honda GX120 Gasoline Engine 120 cc Operating horsepower Maximum delivery (with tip) 0.75 gpm (2.82 lpm) Paint hose 1/4 in. x 50 ft (6.4 mm x 15 m) Maximum tip hole size 0.027 in.
  • Page 27 Notes Notes 3A2818A...

  • Page 28: 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:

262866

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