Troubleshooting

Electrical Troubleshooting

Problem

Cause

Solution

 

 

 

Poor wrap.

ES ON/OFF valve OFF (0).*

Turn ON (I).

 

 

 

 

Gun air pressure too low.

Check air pressure to gun; minimum

 

 

40 psi (0.28 MPa, 2.8 bar) needed at

 

 

gun for full voltage.

 

 

 

 

Atomizing air pressure too high.

Decrease.

 

 

 

 

Fluid pressure too high.

Decrease.

 

 

 

 

Incorrect distance from gun to part.

Should be 8-12 in. (200-300 mm).

 

 

 

 

Poorly grounded parts.

Resistance must be 1 megohm or

 

 

less. Clean workpiece hangers.

 

 

 

 

Faulty gun resistance.

See Test Gun Resistance on page

 

 

17.

 

 

 

 

Low fluid resistivity.

Check fluid resistivity, page 13.

 

 

 

 

Fluid leaks from the packing (26d)

Clean the packing rod cavity.

 

and causes a short.

Replace the packing rod. See page

 

 

28.

 

 

 

 

Faulty turbine alternator.

Be sure the plug is in place on the

 

 

back of the turbine alternator hous-

 

 

ing. Remove and test the turbine

 

 

alternator. See page 31.

 

 

 

ES indicator or voltage/current dis-

ES ON/OFF valve OFF (0).*

Turn ON (I).

play is not lit.

 

 

 

 

 

 

No power.

Replace power supply. See page 30.

 

 

 

Operator gets mild shock.

Operator not grounded or is near

See Grounding on page 11.

 

ungrounded object.

 

 

 

 

 

Gun not grounded.

See Check Electrical Grounding on

 

 

page 12 and Test Gun Resistance

 

 

on page 17.

 

 

 

Operator gets shock from workpiece.

Workpiece not grounded.

Resistance must be 1 megohm or

 

 

less. Clean workpiece hangers.

 

 

 

* ES indicator light is off when the gun is triggered.

22

309291P

Page 22
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Graco Inc 309291P, 244399 Electrical Troubleshooting, See Test Gun Resistance on, See Check Electrical Grounding on

309291P, 244399 specifications

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The Graco 244399 is a robust fluid-handling pump designed specifically for transferring and dispensing a variety of fluids. Crafted with durability in mind, it features an air-operated diaphragm pump mechanism that ensures consistent performance in demanding environments. Its design incorporates a lightweight composite structure, making it easy to transport and install. The pump is capable of handling a wide range of fluids, including paints, coatings, and chemicals, making it versatile for different applications.

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In conclusion, Graco Inc’s 244399 and 309291P highlight the company’s dedication to providing high-quality, innovative solutions for fluid handling and application. With their superior features, advanced technologies, and user-centric designs, these models continue to set standards in performance and reliability across various industries.