Power Supply Removal and Replacement, 40c

SERVICE

KEY		40	40e
F	3-wire Connector	40	40e
G	Potentiometer
10	Gun Barrel		40b
13	Retainer Ring		40b
27	Alternator		G
27a	O-Ring		G
27a	O-Ring
27b	Cushion	40a
39	Gun Body	40a

40Power Supply

40a	Gasket	40c
40b	Pad
40c	Pad
40d	Seal
40e	Cushion	40d

F
	27a
10
27b	27	0450

Fig 23

Power Supply Removal and Replacement

REPAIR NOTES:

a.To avoid a loss in electrostatic performance, inspect the gun handle’s power supply cavity for dirt or moisture. Clean the cavity with a clean, dry rag.

b.Do not expose the seal (40d) or o-ring (27a) to solvents as solvents will damage them.

1.Remove the barrel as described in Barrel Removal.

2.Grasp the power supply (40) with your hand. With a gentle side-to-side motion, being careful not to dam- age the power supply, pull the power supply free from the gun handle (39), then pull it straight out.

3.Inspect the power supply for any physical damage. Check the electrical resistance as instructed in Test Power Supply Resistance. If needed, replace the power supply.

Before installing the power supply, inspect the seal (40d) for any damage or swelling; replace if neces- sary. Also, make sure the gaskets/pads (40a–40e) are in place.

4.Lubricate the o-ring (27a) and insert the power sup- ply in the gun handle.

5.Install the barrel on the handle as described in Barrel Installation.

Power Supply Adjustment

The KV HI/LO switch, on the back of the gun manifold, enables you to switch between full voltage and a lower voltage output. The lower voltage is factory set at 60 kV, but can be adjusted between 45 and 80 kV.

To adjust the low voltage setting, use a small blade end screw driver to turn the potentiometer (G), clockwise to increase the voltage or counterclockwise to decrease it; fully clockwise is 80 kV, fully counterclockwise is 45 kV.

Turbine Alternator Removal and

Replacement

NOTE: Replace turbine bearings after 2,000 hours of operation. See your authorized Graco representative.

1.Remove the power supply from the gun handle as described at left.

2.Squeeze the two ends of the retaining ring (13) together and carefully pull the alternator (27) away from the power supply (40) until the wire connector

(F) disengages. See Fig 23 .

3.Use an ohmmeter to test the turbine alternator coil. Measure the resistance between the two outer termi- nals of the 3-wire connector (F). Resistance should be 3 to 5 ohms. If the reading varies from this value, replace the alternator.

4.Connect the 3-wire connector to the 3 prongs in the power supply. Push the alternator (27) onto the pow- er supply (40) until the retaining ring (13) engages with the alternator.

5.Install the power supply in the gun handle as described at left.

308-084 25

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.

Graco Inc 308-084, 4600SC manual Power Supply Removal and Replacement, Power Supply Adjustment, 40c

Models: 308-084 4600SC 224-094 235-894 235893 224-224