Section 3

DESCRIPTION & COMPONENTS

3. Repeat Step 1 at Pin Location 8 (Wire 55) and Stator Lead 11.

For the following steps (4 through 6) an additional paper clip (or similar item) will be needed:

4.Insert a paper clip into Pin Location 3 (Wire 55A). Connect the red tester probe to the paper clip. Insert additional paper clip into Pin Location 6 (Wire 2). Connect the black tester probe to this paper clip. Refer to Steps 5a through 5c of “TESTING ALL STATOR WINDINGS TO GROUND” on the previous page.

5.Insert a paper clip into Pin Location 3 (Wire 55A). Connect the red tester probe to the paper clip. Insert additional paper clip into Pin Location 8 (Wire 55). Connect the black tester probe to this paper clip. Refer to Steps 5a through 5c of “TESTING ALL STATOR WINDINGS TO GROUND” on the previous page.

6.Insert a paper clip into Pin Location 6 (Wire 2). Connect the red tester probe to the paper clip. Insert the additional paper clip into Pin Location 8 (Wire 55). Connect the black tester probe to this paper clip. Refer to Steps 5a through 5c of “TESTING ALL STATOR WINDINGS TO GROUND” on the previous page.

Rotor Insulation Resistance Test

Before attempting to test rotor insulation, the brush holder must be completely removed. The rotor must be completely isolated from other components before starting the test. Attach all leads of all stator windings to ground.

1.Connect the red tester lead to the positive (+) slip ring (nearest the rotor bearing).

2.Connect the black tester probe to a clean frame ground, such as a clean metal part of the rotor shaft.

POSITIVE (+)

TEST LEAD

Figure 3-10. – Testing Rotor Insulation

3.Turn the tester switch OFF.

4.Plug the tester into a 120 volts AC wall socket and set the volt- age switch to “1500 volts”.

5.Turn the tester switch “On” and make sure the pilot light has turned on.

6.Observe the breakdown lamp, then turn the tester switch OFF.

DO NOT APPLY VOLTAGE LONGER THAN ONE (1) SECOND.

If the breakdown lamp came on during the one (1) second test, cleaning and drying of the rotor may be necessary. After cleaning and drying, repeat the insu- lation breakdown test. If breakdown lamp comes on during the second test, replace the rotor assembly.

Cleaning the Generator

Caked or greasy dirt may be loosened with a soft brush or a damp cloth. A vacuum system may be used to clean up loosened dirt. Dust and dirt may also be removed using dry, low-pressure air (25 psi maximum).

*CAUTION: Do not use sprayed water to clean the generator. Some of the water will be retained on generator windings and terminals, and may cause very serious problems.

Drying the Generator

To dry a generator, proceed as follows:

1.Open the generator main circuit breaker. NO ELECTRICAL LOADS MUST BE APPLIED TO THE GENERATOR WHILE DRYING.

2.Provide an external source to blow warm, dry air through the generator interior (around the rotor and stator windings. DO NOT EXCEED 185° F. (85° C.).

3.Start the generator and let it run for 2 or 3 hours.

4.Shut the generator down and repeat the stator and rotor insula- tion resistance tests.

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Guardian Technologies 4451 & 4986, 4583 Rotor Insulation Resistance Test, Cleaning the Generator, Drying the Generator
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5308, 4583, 4451 & 4986, 4582 & 4987 specifications

Guardian Technologies has carved a niche in the market with its innovative air purification and UV-C sanitization products. The company's model numbers, including 4582, 4987, 4451, 4986, 4583, and 5308, represent a diverse range of solutions designed to enhance indoor air quality and safety in both residential and commercial settings.

The Guardian Technologies 4582 is equipped with a true HEPA filter that captures 99.97% of dust, pollen, smoke, and other particles as small as 0.3 microns. This model features a smart sensor that adjusts the fan speed according to the air quality in real-time. The UV-C light technology integrated into this device works to eliminate viruses and bacteria, providing an additional layer of protection against airborne pathogens.

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The 4583 model stands out with a unique combination of design and functionality. It features a low-profile design, making it easy to fit into any space. Its UV-C light technology not only disinfects air but can also sanitize surfaces, bridging the gap between air purification and direct sanitation.

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In summary, Guardian Technologies’ products exemplify a commitment to improving air quality and promoting health through innovative technology. With features like HEPA filtration, UV-C sanitization, smart sensors, and sleek designs, consumers can choose from a range of models that best fit their needs, ensuring cleaner, safer indoor environments.
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