Graco Inc ti5641a User Manual
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Repair

390Airless Sprayer

310824D

- For portable spray applications of architectural paints and coatings -

3300 psi (22.7MPa, 227bar) Maximum Working Pressure

IMPORTANT SAFETY INSTRUCTIONS!

Read all warnings and instructions. Save these instructions. Contact Graco Customer Service or your local Graco distributor to obtain a manual in your language.

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310876

 

 

 

 

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Model*

 

VAC

Country

 

 

 

 

 

 

 

 

 

 

 

 

262019, 253958

 

120

North America

 

 

 

 

 

 

 

 

 

 

 

 

254968, 254969, 256391

240

Europe / Europe

 

 

 

 

 

multicord

 

 

 

 

 

 

 

 

 

 

 

254998, 262024, 256392

240

Asia / Australia

 

 

 

 

 

 

 

 

 

 

 

 

256481, 253961

 

110

UK

 

 

 

 

 

 

 

 

 

 

 

 

*all models not available in all countries

Graco Inc., PO Box 1441, Minneapolis, MN55440-1441

Copyright 2004, Graco Inc. is registered to I.S. EN ISO 9001

Contents

Manual Conventions . . . . . . . . . . . . . . . . . . . . . . . . 2

Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Component Identification . . . . . . . . . . . . . . . . . . . . 5

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Pressure Relief Procedure . . . . . . . . . . . . . . . . . . . 7

General Repair Information . . . . . . . . . . . . . . . . . . 8

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Displacement Pump Replacement . . . . . . . . . . . . 13

Drive Housing Replacement . . . . . . . . . . . . . . . . . 15

Spin Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Fan Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Manual Conventions

WARNING

Hazard Symbol

WARNING: a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Warnings in the instructions usually include a symbol indicating the hazard. Read the general Warnings section for additional safety information.

Manual Conventions

Motor Brush Replacement . . . . . . . . . . . . . . . . . . 18

Control Board Replacement . . . . . . . . . . . . . . . . . 19

Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . 21

Pressure Control Assembly Replacement . . . . . . 22

Manifold Replacement . . . . . . . . . . . . . . . . . . . . . . 23

Power Cord Replacement . . . . . . . . . . . . . . . . . . . 24

Motor Replacement . . . . . . . . . . . . . . . . . . . . . . . . 25

Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 29

Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 30

CAUTION

CAUTION: a potentially hazardous situation which, if not avoided, may result in property damage or destruction of equipment.

Note

Additional helpful information.

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310824D

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 symbol refers to procedure-specificrisks. Refer back to these warnings. Additional,product-specificwarnings may be found throughout the body of this manual where applicable.

Grounding Instructions

This product must be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electric current. This product is equipped with a cord having a grounding wire with an appropriate grounding plug. The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances.

WARNING

GROUNDING

Improper installation of the grounding plug is able to result in a risk of electric shock.

When repair or replacement of the cord or plug is required, do not connect the grounding wire to either flat blade terminal.

The wire with insulation having an outer surface that is green with or without yellow stripes is the grounding wire.

Check with a qualified electrician or serviceman when the grounding instructions are not completely understood, or when in doubt as to whether the product is properly grounded.

Do not modify the plug provided; if it does not fit the outlet, have the proper outlet installed by a qualified electrician.

This product is for use on a nominal 120V circuit and has a grounding plug similar to the plug illustrated in the figure below.

Only connect the product to an outlet having the same configuration as the plug.

Do not use an adapter with this product.

Extension Cords:

Use only a 3-wireextension cord that has a3-bladegrounding plug and a3-slotreceptacle that accepts the plug on the product.

Make sure your extension cord is not damaged. If an extension cord is necessary, use 12 AWG (2.5 mm2) minimum to carry the current that the product draws.

An undersized cord results in a drop in line voltage and loss of power and overheating.

310824D

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Warning

WARNING

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:

Do not spray flammable or combustible materials near an open flame or sources of ignition such as cigarettes, motors, and electrical equipment.

Paint or solvent flowing through the equipment is able to result in static electricity. Static electricity creates a risk of fire or explosion in the presence of paint or solvent fumes. 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-pressureairless paint sprayer hoses.

Verify that all containers and collection systems are grounded to prevent static discharge.

Connect to a grounded outlet and use grounded extensions cords. Do not use a 3-to-2adapter.

Do not use a paint or a solvent containing halogenated hydrocarbons.

Keep spray area well-ventilated.Keep a good supply of fresh air moving through the area. Keep pump assembly in a well ventilated area. Do not spray pump assembly.

Do not smoke in the spray area.

Do not operate light switches, engines, or similar spark producing products in the spray area.

Keep area clean and free of paint or solvent containers, rags, and other flammable materials.

Know the contents of the paints and solvents being sprayed. Read all Material Safety Data Sheets (MSDS) and container labels provided with the paints and solvents. Follow the paint and solvents manufacturer’s safety instructions.

Fire extinguisher equipment shall be present and working.

Sprayer generates sparks. When flammable liquid is used in or near the sprayer or for flushing or cleaning, keep sprayer at least 20 feet (6 m) away from explosive vapors.

SKIN INJECTION HAZARD

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 Graco 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.

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

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

This system is capable of producing 3300 psi. Use Graco replacement parts or accessories that are rated a minimum of 3300 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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310824D

Warning

WARNING

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 operate the unit when fatigued or under the influence of drugs or alcohol.

Do not kink or over-bendthe hose.

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

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

Misuse of the sprayer platform can cause death or serious injury.

Do not exceed platform rating.

Make sure sprayer is on firm, level, non-slippery,secure foundation before accessing sprayer platform.

Make sure platform has been properly secured to frame before standing on platform.

If you are unable to step up to sprayer platform, use a stable intermediate stepping device for stepping up to sprayer platform or stepping down from sprayer platform.

Keep both feet squarely and firmly on platform.

Do not allow sprayer frame to come in contact with live electrical wires.

Do not over reach while on sprayer platform.

Do not position sprayer behind any doors when on sprayer platform.

ELECTRIC SHOCK HAZARD

Improper grounding, setup, or usage of the system can cause electric shock.

Turn off and disconnect power cord before servicing equipment.

Use only grounded electrical outlets.

Use only 3-wireextension cords.

Ensure ground prongs are intact on sprayer and extension cords.

Do not expose to rain. Store indoors.

PRESSURIZED ALUMINUM PARTS HAZARD

Do not use 1, 1, 1-trichloroethane,methylene chloride, other halogenated hydrocarbon solvents or fluids containing such solvents in pressurized aluminum equipment. Such use can cause serious chemical reaction and equipment rupture, and result in death, serious injury, and property damage.

BURN HAZARD

Equipment surfaces can become very hot during operation. To avoid severe burns, do not touch hot equipment. Wait until equipment has cooled completely.

MOVING PARTS HAZARD

Moving parts can pinch 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 in this manual. Disconnect power or air supply.

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 MSDS’s 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.

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, inhalation of toxic fumes, burns, and hearing loss. This equipment includes but is not limited to:

Protective eye wear

Clothing and respirator as recommended by the fluid and solvent manufacturer

Gloves

Hearing protection

310824D

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