OPERATION

Adjusting the Turbine Air Pressure

WARNING

The fan and atomizing air MUST be on before

turning on the turbine air . Actuating the turbine air without fan and atomizing air flow could damage the gun and may create hazardous operating conditions and result in serious injury and property damage.

1. Complete all the checks under the

Operating

Checklist on page 9.

 

2.Make sure the fan and atomizing air are on, then turn the turbine air (electrostatics) on.

3.The turbine air pressure should be adjusted to 40 psi (2.8 bar) at the gun manifold inlet when air is flowing. The gun may be operated at a lower air pressure, but some voltage loss could occur. Do not exceed 50 psi (3.5 bar) air pressure as there is no added benefit and turbine life could be reduced.

4.Check the gun electrostatics display module, if used, to see the voltage and current output levels.

NOTE: The gun’s normal high voltage output is 60 to 70 kV. If a ball end high voltage measurement probe is used, the gun voltage will rise to about 85 kV. This will happen with all resistive electrostatic guns.

See the Electrical Troubleshooting Chart on page 15 to correct voltage problems.

Activating the Voltage Select (KV HI/LO)

To change the voltage to the lower setting, activate the voltage select function (KV HI/LO). The lower voltage setting is factory set to 60 kilovolts at zero microamperes. To change this setting, see page 25.

The valve used to activate the KV HI/LO switch must bleed the air out of the line for the switch to draw back to the high setting.

MAINTENANCE

WARNING

To reduce the risk of serious bodily injury, including splashing in the eyes or on the skin or electrostatic shock, always follow the Pressure Relief Proce- dure Warning on page 9 when shutting of f the system, when you stop spraying and before check- ing, servicing, installing, cleaning or changing any part in the system.

CAUTION

Clean all parts with a non-conductive solvent, compatible with the fluid being sprayed. Conduc- tive solvents can cause the gun to malfunction.

Methylene chloride is not recommended as a flushing or cleaning solvent with this gun as it will damage nylon components.

Immersing the gun in solvent is not recommended as a cleaning method. Solvent left in gun passages could result in a poor quality paint finish and may draw current and reduce the electrostatic ef fect. Solvent in the power supply cavity can reduce the alternator life.

Daily Care and Cleaning

1.Clean the fluid and air line filters daily.

2.Clean the outside of the gun daily with a soft cloth dampened in a compatible solvent.

3.Clean the air cap and fluid nozzle daily , minimum. Some applications require more frequent cleaning. Replace the fluid nozzle and air cap if they are dam- aged. See Clean the Air Cap and Fluid Nozzle.

4.Check the electrode wire. Straighten if bent, and replace if broken or damaged. See Replacing the Electrode Needle.

5.Check for any fluid leakage from the gun and fluid hoses. See Check for Fluid Leaks.

6.Check all of the work hangers for material build-up; clean them if necessary.

WARNING

To reduce the risk of fire, explosion, or electrostatic shock, BE SURE the turbine air (electrostatics) is off before flushing the gun or any part of the system.

7.Flush the fluid passages by alternating solvent and air. Flush before changing colors and whenever you are done operating the gun.

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Graco Inc 224-224, 4600SC, 308-084 Maintenance, Adjusting the Turbine Air Pressure, Activating the Voltage Select KV HI/LO
Page 9 Page 11

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.

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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.

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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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