Graco Inc 308-084, 4600SC, 235893, 235-894, 224-224, 224-094 manual Spray Pattern Troubleshooting Chart

Page 13

SPRAY PATTERN TROUBLESHOOTING CHART

WARNING

Installing and servicing this equipment requires access to parts which may cause electrostatic shock or other seri- ous bodily injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified.

To reduce the risk of serious bodily injury, including splashing fluid or solvent in the eyes or on the skin, always follow the Pressure Relief Procedure on page 9 before checking, adjusting, cleaning or repairing the gun or any part of the system.

NOTE: Check all possible remedies in the Troubleshooting Charts before disassembling the gun.

PROBLEM:

CAUSE

SOLUTION

IMPROPER SPRAY

 

 

PATTERN

 

 

Fluttering or spitting spray

Insufficient fluid supply.

Adjust fluid regulator or fill fluid tank.

 

 

 

 

Loose fluid nozzle or damaged

Tighten or replace fluid nozzle.

 

 

 

 

fluid nozzle taper seat.

See page 19.

 

 

 

 

Dirt between fluid nozzle, taper

Clean. See page 11.

 

 

 

 

seat and body.

 

 

 

 

 

 

 

 

 

 

Loose or cracked coupler at

Tighten or repair.

 

 

 

 

 

 

 

 

fluid inlet.

 

 

 

 

 

Loose fluid tube in tank.

Tighten.

 

 

 

 

Fluid build-up on air cap; partially

Clean with soft implement or

 

 

 

 

clogged horn holes. Full air pres-

submerge in suitable solvent and

 

 

 

 

sure from clean horn hole forces

wipe clean. See page 11.

 

 

 

 

fan pattern toward clogged end.

 

 

 

 

 

Bent electrode.

Straighten electrode

 

 

 

 

Damaged fluid nozzle or air

Replace damaged part. See

 

 

 

 

cap holes.

page 19.

 

 

 

 

Fluid build-up on the perimeter

Remove obstruction. Never use

 

 

 

 

of fluid nozzle orifice, or partially

wire or hard instruments. See

 

 

 

 

clogged fluid nozzle orifice

page 11.

 

 

 

 

Bent electrode.

Straighten electrode

 

 

 

 

Too high fan air pressure.

Reduce air pressure or adjust fan

 

 

 

 

 

air adjusting valve.

 

 

 

 

Fluid too thin.

Regulate fluid viscosity.

 

 

 

 

Not enough fluid pressure

Increase fluid pressure.

 

 

 

 

 

 

 

 

 

 

Low fan air pressure

Increase air pressure.

 

 

 

 

Fluid too thick

Regulate fluid viscosity.

 

 

 

 

Too much fluid.

Reduce fluid flow.

 

 

 

 

 

 

Streaks

Last coat of fluid applied too wet.

Apply drier finish with multiple

 

 

 

 

 

strokes.

 

 

 

 

Too much air pressure.

Use least air pressure necessary.

 

 

 

 

Insufficient air pressure.

Increase air pressure.

 

 

 

 

Non-uniform spray pattern.

Clean or replace air cap. See

 

 

 

 

 

page 11.

NOTE: Some improper patterns are caused by the improper balance between air and fluid.

308-084￿ ￿ ￿ ￿ ￿ 13

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Contents Part No -893, Series a Part No -224, Series a Air Spray Gun, without shroudPart No -894, Series a Part No -094 Series a Gun ManifoldEquipment Misuse Hazard Hose SafetyHazardous Fluid Hazard Ventilate the Spray Booth Flushing and Cleaning SafetyFIRE, EXPLOSION, or Electrostatic Shock Hazard GroundingTable of Contents Installing the System Typical InstallationSystem Options Spraying Voltage MonitorVentilate the Spray Booth InstallationInstall the Gun Mounting Bracket Install the Gun and Manifold See FigAir Cap/Air Cap Nut Accessories sectionCheck the Electrical Grounding See Fig Install the Fabric Cover See FigAdjusting the Spray Pattern Operating ChecklistOperation Selecting a Fluid Nozzle and Air Cap Gun FunctionsAdjusting the Turbine Air Pressure MaintenanceDaily Care and Cleaning Activating the Voltage Select KV HI/LOFollow the Pressure Relief Procedure Warning on Clean the Air Cap and Fluid NozzleCheck for Fluid Leakage See Fig Check for signs of fluid leakage where indicated by arrowsProblem Cause Solution Improper Spray Pattern Spray Pattern Troubleshooting ChartProblem Cause Solution GUN Operation Troubleshooting ChartSee Check the Electrical Grounding Electrical Troubleshooting ChartElectrical Tests Test Power Supply Resistance See FigTest Gun Resistance See Fig 40dTest Resistor Stud Resistance Air Cap/Nozzle/Resistor Stud ReplacementService Notes ServiceFlush the Gun and Relieve Pressure To install the resistor stud Air Cap/Nozzle/Resistor Stud ReplacementElectrode Replacement Barrel Removal Barrel Installation Fluid Packing Rod Removal and Repair   Power Supply Adjustment Power Supply Removal and ReplacementTurbine Alternator Removal Replacement 40cSpray GUN Service Notes Manifold Service Notes Detail a Spray GUN Parts DrawingPart No -893, Series a Air Spray Gun, with standard shroud Spray GUN Parts ListManifold Parts Drawing Manifold Parts ListSure Relief Procedure on Installing the PRO 4600HC Conversion KitPRO 4600HC Conversion KIT Accessories Volt Power Supply Gun Mount AssemblyMount Extensions 224-255/259 Nylon Fabric CoverGrounding Clamp and Wire Bulkhead ConnectorFiber Optic Cables MegohmmeterManual Change Summary Technical DataGraco Phone Numbers Graco Warranty and DisclaimersMINNEAPOLIS, MN

308-084, 4600SC, 224-094, 235-894, 235893 specifications

Graco Inc. is a renowned company in the manufacturing of fluid handling systems and products, particularly focusing on industrial, automotive, and contractors' markets. Among its extensive range of offerings are specific models that have garnered attention for their performance and reliability. This article highlights several Graco product numbers, including 224-224, 235893, 235-894, 224-094, and 4600SC.

The model 224-224 is recognized for its versatile usage in paint applications, capable of accommodating various material types. It is equipped with Graco's innovative technology that ensures consistent and precise fluid delivery, making it ideal for both professional contractors and DIY enthusiasts. The device often includes features like a lightweight structure for easy maneuverability and an ergonomic design for enhanced user comfort.

Moving to the model 235893, it presents impressive durability and optimal performance in high-pressure scenarios. This model is particularly popular among heavy-duty applications, thanks to its ability to withstand the rigors of demanding environments. With advanced component engineering, the 235893 ensures minimal downtime and enhances efficiency, making it a go-to choice for professionals in need of reliability under pressure.

The 235-894 model stands out due to its unique pump design that optimizes material flow and reduces overspray. This characteristic is crucial for achieving professional-grade finishes with reduced waste, saving both time and resources. Additionally, its user-friendly interface allows operators to adjust settings easily, catering to varied application needs.

Next, the 224-094 model is tailored for precision and versatility, featuring a compact design suitable for tighter spaces. It is engineered for efficiency, allowing for rapid color changes without compromising performance. The advanced filtration system integrated within this model ensures that contaminants are minimized, safeguarding the integrity of the materials being used.

Lastly, the 4600SC model exemplifies Graco’s commitment to innovation, specifically tailored for airless spray applications. It is equipped with cutting-edge technology that maximizes control over pressure and flow rate, allowing for seamless operation in different environments. The model’s ability to adapt to various paints and coatings while providing a superior finish adds to its appeal.

In summary, Graco Inc. provides a range of high-performance products like the 224-224, 235893, 235-894, 224-094, and 4600SC, each with distinctive features and technologies that cater to a broad spectrum of fluid handling needs. These models reflect the company’s dedication to enhancing efficiency, durability, and user experience in fluid management across various industries.
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