AIRLESSCO GS6250 User Manual

Operation/Repair/Parts

3A1187E

Airless Paint Sprayer

For application of architectural paints and coatings. For professional use only.

Airlessco - GS6250 (24F575), (16M532)

3000 psi (20.7 MPa, 207 bar) Maximum Working Pressure

Important Safety Instructions

Read all warnings and instructions in this manual. Save these instructions.

Related Manuals

Gun Manual

312363

Model 24F575

Model 16M532 3A0413

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Warnings

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, 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

WARNINGWARNINGWARNING

FIRE AND EXPLOSION HAZARD

Flammable fumes, such as solvent and paint fumes, in work area can ignite or explode. To help prevent fire and explosion:

• Use equipment only in well ventilated area.

• Do not fill fuel tank while engine is running or hot; shut off engine and let it cool. Fuel is flammable and can ignite or explode if spilled on hot surface.

• Eliminate all ignition sources; such as pilot lights, cigarettes, portable electric lamps, and plastic drop cloths (potential static arc).

• Keep work area free of debris, including solvent, rags and gasoline.

• Do not plug or unplug power cords, or turn power or light switches on or off when flammable fumes are present.

• Ground all equipment in the work area. See Grounding instructions.

• Use only grounded hoses.

• Hold gun firmly to side of grounded pail when triggering into pail.

• If there is static sparking or you feel a shock, stop operation immediately. Do not use equipment until you identify and correct the problem.

• Keep a working fire extinguisher in the work area.

SKIN INJECTION HAZARD

High-pressure spray is able to inject toxins into the body and cause serious bodily injury. In the event that injection occurs, get immediate surgical treatment.

• Do not aim the gun at, or spray any person or animal.

• Keep hands and other body parts away from the discharge. For example, do not try to stop leaks with any part of the body.

• Always use the nozzle tip guard. Do not spray without nozzle tip guard in place.

• Use Airlessco nozzle tips.

• Use caution when cleaning and changing nozzle tips. In the case where the nozzle tip clogs while spraying, follow the Pressure Relief Procedure for turning off the unit and relieving the pressure before removing the nozzle tip to clean.

• Do not leave the unit energized or under pressure while unattended. When the unit is not in use, turn off the unit and follow the Pressure Relief Procedure for turning off the unit.

• Check hoses and parts for signs of damage. Replace any damaged hoses or parts.

• This system is capable of producing 3000 psi. Use Airlessco replacement parts or accessories that are rated a minimum of 3000 psi.

• Always engage the trigger lock when not spraying. Verify the trigger lock is functioning properly.

• Verify that all connections are secure before operating the unit.

• Know how to stop the unit and bleed pressure quickly. Be thoroughly familiar with the controls.

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Warnings

WARNING

WARNINGWARNINGWARNING

EQUIPMENT MISUSE HAZARD Misuse can cause death or serious injury.

• Always wear appropriate gloves, eye protection, and a respirator or mask when painting.

• Do not operate or spray near children. Keep children away from equipment at all times.

• Do not overreach or stand on an unstable support. Keep effective footing and balance at all times.

• Stay alert and watch what you are doing.

• Do not leave the unit energized or under pressure while unattended. When the unit is not in use, turn off the unit and follow the Pressure Relief Procedure for turning off the unit.

• Do not operate the unit when fatigued or under the influence of drugs or alcohol.

• Do not kink or over-bend the hose.

• Do not expose the hose to temperatures or to pressures in excess of those specified by Airlessco.

• Do not use the hose as a strength member to pull or lift the equipment.

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.

• Many other fluids may contain chemicals that can react with aluminum. Contact your material supplier for compatibility.

MOVING PARTS HAZARD

Moving parts can pinch, cut or amputate fingers and other body parts.

• Keep clear of moving parts.

• Do not operate equipment with protective guards or covers removed.

• Pressurized equipment can start without warning. Before checking, moving, or servicing equipment, follow the Pressure Relief Procedure and disconnect all power sources.

CARBON MONOXIDE HAZARD

Exhaust contains poisonous carbon monoxide, which is colorless and odorless. Breathing carbon monoxide can cause death.

• Do not operate in an enclosed area.

TOXIC FLUID OR FUMES HAZARD

Toxic fluids or fumes can cause serious injury or death if splashed in the eyes or on skin, inhaled, or swallowed.

• Read MSDSs to know the specific hazards of the fluids you are using.

• Store hazardous fluid in approved containers, and dispose of it according to applicable guidelines.

3A1187E 3

Warnings

WARNING

WARNINGWARNINGWARNING

BURN HAZARD

Equipment surfaces and fluid that’s heated can become very hot during operation. To avoid severe burns:

• Do not touch hot fluid or equipment.

PERSONAL PROTECTIVE EQUIPMENT

You must wear appropriate protective equipment when operating, servicing, or when in the operating area of the equipment to help protect you from serious injury, including eye injury, hearing loss, inhalation of toxic fumes, and burns. This equipment includes but is not limited to:

• Protective eye wear, and hearing protection.

• Respirators, protective clothing, and gloves as recommended by the fluid and solvent manufacturer.

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Component Identification

PRIME

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PRESSURE

NOTE: The valve handle can move both clockwise and counter clockwise and can face different directions.

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A Pressure Control Knob Adjusts pressure. Turn clockwise to increase pressure and

counterclockwise to decrease pressure.

Prime/Pressure (PR) Relief Valve Primes pump and relieves pressure from gun, hose and tip.

B Prime/Pressure (PR) Relief Valve Open

Position

Relieves pressure from gun, hose and tip and primes the unit when in the open position. It is in the Open position when there is a wider gap between valve handle and cam body.

C Prime/Pressure (PR) Relief Valve

Closed Position

Pressurizes system when closed. It is in the Closed position when there is only a slight gap between handle and body. Turn to the closed position to spray.

3A1187E 5

Operation

Pressure Relief Procedure

To reduce risk of injury, follow this pressure relief procedure whenever you see this symbol throughout this manual, Also, perform this procedure whenever you:

•Stop spraying

• Check or repair any part of this system

• Install or clean spray nozzle

1. Engage the gun trigger lock. Refer to the separate instruction manual provided with gun for safety features and how to engage the trigger lock.

2. Turn the unit off.

3. Disengage the gun trigger lock and trigger the gun to relieve residual fluid pressure.

Hold metal part of the gun in contact with grounded metal pail. Use minimum pressure.

NOTE: If you suspect that pressure hasn’t been relieved

due to damaged Prime/Pressure Relief Valve, or other reason, slowly loosen the tip nut or hose coupling.

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Setup

Grounding

Always ground the following components:

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4. Turn Prime/Pressure Relief Valve (PR Valve) to the open (priming) position to relieve residual pressure.

5. Re-engage gun trigger lock and close Prime/Pressure Relief Valve.

If the spray tip or hose is clogged, follow Steps 1 through 5 above. Expect paint to splash into the bucket while relieving pressure during Step 4.

• Sprayer - Connect a ground wire and clamp (supplied) to a true earth ground.

• Fluid Hose - Use only grounded hoses.

• Spray Gun of Dispensing Valve - Grounding is obtained through connection to a properly grounded fluid hose and pump.

• Object being sprayed - According to local code.

Connect the hose and gun

1. Remove the plastic cap plug from the outlet and screw a conductive or grounded 3000 psi spray hose onto fluid outlet.

2. Connect an airless spray gun to the other end of the hose. Do not install spray tip.

NOTE: Do not use thread sealer on swivel unions as they are made to self seal.

NOTE: The 6’ whip hose should always be 3/8”.

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Operation

Fill the Packing Nut/Wet Cup

1. Fill the Packing Nut/Wet Cup 1/3 full with Airlessco Throat Seal Oil (TSO).

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Check the Engine Oil Level

1. Unscrew the oil fill plug. The dipstick is attached to the plug.

2. Without threading the plug into place, check to be sure the oil is up to the top mark of the dipstick.

3. If oil is needed, refer to engine manual.

Fill the Fuel Tank

1. Close the fuel shutoff valve.

2. Use only clean, fresh, well-known brands of unleaded regular grade gasoline.

• When changing from oil based material to water base material, flush with mineral spirits solvent (also called white spirit), followed by soapy water, then a clean water flush.

• When flushing with solvents, ground pail and gun.

• Flush before changing colors, before fluid can dry in the equipment, at the end of the day, before storing, and before repairing equipment.

Flushing

• To reduce the risk of static sparking, which can cause fire or explosion. Always hold a metal part of the gun firmly against the metal pail when flushing. This also reduces splashing.

• Always remove the spray tip before flushing.

• Only metal pails, which are conductive, should be used as solvent pails when flushing.

1. Make sure the gun trigger lock in engaged and there is no spray tip in the gun. Refer to the separate instruction manual provided with gun for safety features and how to engage the trigger lock.

3. Remove the fuel cap and fill tank. Be sure the air vent in the fill cap is not plugged so fuel can flow to the carburetor, then replace the cap.

Prime and Flush Storage Fluid

NOTICE

The equipment was tested with lightweight oil, which is left in the fluid passages to protect parts. To avoid contaminating your fluid with oil, flush the equipment with a compatible solvent before using the equipment for the first time.

Before beginning a new spraying project you need to prime the sprayer and flush the storage fluid out of the sprayer.

Oil- or Water-based Materials

• When changing from water-based material to oil based material, flush with soapy water and then mineral spirits solvent (also called white spirit).

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2. Pour enough clean, compatible solvent into a large, empty metal pail to fill the pump and hoses.

3. Place the suction tube into the pail or place the pail under the pump.

4. Turn Pressure Control Knob to low.

PRIME

HIGH PRESSURE

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PRESSURE

3A1187E 7

Operation

5. Open the prime valve to the open - “Priming Position”. This will allow an easy start.

Open

(Priming and

Pressure Relief)

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6. Turn the engine ON/OFF switch to ON.

7. Move the choke toward the closed position.

8. Move the throttle lever slightly to the left.

9. Turn the fuel valve ON. Pull the start rope. Pull the engine over against compression stroke and then let the rope rewind slowly into the starter. Pull firmly and rapidly to start the engine. Do NOT drop the rope. Hold on to the handle while rewinding, or the rope may rewind improperly and jam the assembly. If the engine does not start, open the choke a little more. If the engine floods, open the choke all the way and continue cranking.

12. Disengage the gun trigger lock and squeeze the gun trigger. At the same time, slowly turn the pressure control knob clockwise, just enough to move liquid at low pressure.

13. Allow the pump to operate until clean solvent comes from the gun.

14. Release the trigger and engage the gun trigger lock.

15. If you are going to start spraying, place the pump or suction tube into the supply container. Release the gun trigger lock and trigger the gun into another empty, metal container, holding a metal part of the gun firmly against the metal pail, forcing the solvent from the pump and hose. When paint starts coming from gun, turn pressure control knob to minimum pressure, place prime valve in prime (open) position and engage the gun trigger lock.

16. If you are going to store the sprayer, remove the suction tube or pump from the solvent pail, force the solvent from the pump and hose. Engage the gun trigger lock. See Storage, 10.

17. Whenever shutting down the sprayer, follow Pres- sure Relief Procedure, page 6.

Throttle Lever

Choke Lever

Fuel Valve

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10. After the engine is warm, gradually close the choke, raise the RPM of engine slightly by moving throttle to the left. Close the prime valve.

Closed

(Pressure)

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11. Point the gun into the metal pail and hold a metal part of the gun firmly against the pail. Maintain firm metal to metal contact between gun and container.

NOTICE

To prevent damage and freezing during storage, never leave water in the fluid pump

Startup

1. Prepare the material according to the material manufacturer’s recommendations.

2. Place pump or suction tube into the material container.

3. Start the sprayer.

a. Prime Valve must be “OPEN” in the priming

position.

b. Pressure Control Knob must be in low pres-

sure.

c. Turn the engine ON/OFF switch to ON.

d. Move the choke toward the closed position.

e. Move the throttle lever slightly to the left.

f. Turn the fuel valve ON. Pull the start rope. Pull

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the engine over against compression stroke and then let the rope rewind slowly into the

8 3A1187E

Operation

starter. Pull firmly and rapidly to start the engine. Do NOT drop the rope. Hold on to the handle while rewinding, or the rope may rewind improperly and jam the assembly. If the engine does not start, open the choke a little more. If the engine floods, open the choke all the way and continue cranking.

g. After the engine is warm, gradually close the

choke, raise the RPM of engine slightly by moving throttle to the left. Close the prime valve.

h. Point the gun into the metal pail and hold a

metal part of the gun firmly against the pail. Maintain firm metal to metal contact between gun and container.

i. Disengage the gun trigger lock and squeeze

the gun trigger. At the same time, slowly turn the pressure control knob clockwise, just enough to move liquid at low pressure.

4. Prime the pump.

NOTICE

Adjust the Pressure

• To reduce the risk of injection, never hold your hand, body, fingers or hand in a rag in front of the spray tip when cleaning or checking for a cleared tip. Always point the gun toward the ground or into a waste container when checking to see if the tip is cleared or when using a self cleaning tip.

• To stop the unit in an emergency, turn the engine off. Then relieve the fluid pressure in the pump and hose. See Pressure Relief Procedure, page 6

When adjusting the pressure, turn the Pressure Control Knob clockwise to increase pressure and counterclockwise to decrease pressure. Always use the lowest pressure necessary to completely atomize the material. If more coverage is needed, use a larger tip rather than increasing the pressure. Check the spray pattern. The tip size and angle determines the pattern width and flow rate.

Do not start engine without fluid pump having enough fluid so that it can be primed. Running fluid pump dry will decrease life of the pumps packings.

a. Allow pump to operate until paint comes from

gun.

b. Release the trigger and engage the gun trig-

ger lock.

c. Turn Prime Valve OPEN to the prime position

ensuring the pressure is released from the system.

d. Turn Pressure Control Knob to minimum pres-

sure.

e. Install spray tip onto gun.

f. Close the prime valve to the pressure position.

g. Turn the pressure control knob to desired

spray pressure.

h. Disengage the gun safety lock and you are

ready to start spraying.

NOTE: If you spray into the paint bucket, always use the lowest spray pressure and maintain firm metal to metal contact between gun and container.

NOTICE

NOTE: Operating the sprayer at higher pressure than needed wastes material, causes early tip wear, and shortens sprayer life.

Shutdown

1. Relieve Pressure, page 6.

2. Clean the tip and gun as recommended in the separate Gun Manual supplied with the gun.

3. If spraying water-based material or a material that could harden in the sprayer overnight, flush the sprayer after use. See Flushing, page 7.

NOTE: To stop the unit in an emergency, turn the engine off. Then relieve the fluid pressure in the pump and hose. See Pressure Relief Procedure, page 6

3A1187E 9

Operation

Storage

Short Term

1. Flush sprayer with compatible solvent before storing, then fill the pump and hoses with an oil based solvent such as mineral spirits solvent (also called white spirit) or Graco or Airlessco Pump Armor.

• For oil base paint: flush with mineral spirits sol-

vent (also called white spirit)

• For water-base paint: flush with water, then min-

eral spirits solvent (also called white spirit) and leave the pump, hose and gun filled with mineral spirits solvent (also called white spirit).

Long Term

For longer storage, use Graco or Airlessco Pump Armor. Shut off sprayer, Relieve Pressure, page 6, and make sure prime valve is left open.

Start Up After Storage

Before using water-base paint, flush sprayer with soapy water and then a clean water flush. When using oil-base paint, flush out the mineral spirits solvent (also called white spirit) with the material to be sprayed.

NOTE: Always store unit indoors.

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