Guardian Technologies 4582 & 4987, 4451 & 4986, 4583 Stator Assembly, Brush Holder and Brushes

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Section 3

DESCRIPTION & COMPONENTS

Figure 3-2. – The 2-Pole Rotor Assembly

Stator Assembly

The stator can houses and retains (a) dual AC power windings, (b) an excitation winding, and (c) two bat- tery charge windings. A total of thirteen (13) stator leads are brought out of the stator can as shown in Figure 3-3.

The stator can is sandwiched between an engine adapter and a rear bearing carrier. It is retained in that position by four stator studs.

11

44

22

11S

44S

55A

66A

77A

2

6

55

66

77

Figure 3-3. – Stator Assembly Leads

Brush Holder and Brushes

The brush holder is retained to the rear bearing car- rier by means of two Taptite screws. A positive (+) and a negative (-) brush are retained in the brush holder, with the positive (+) brush riding on the slip ring near- est the rotor bearing.

Wire 4 connects to the positive (+) brush and Wire 0 to the negative (-) brush. Wire 0 connects to frame ground. Rectified and regulated excitation current, as well as current from a field boost circuit, are delivered to the rotor windings via Wire 4, and the positive (+) brush and slip ring. The excitation and field boost cur- rent passes through the windings and to frame ground via the negative (-) slip ring and brush, and Wire 0. This current flow creates a magnetic field around the rotor having a flux concentration that is proportional to the amount of current flow.

4 0

Figure 3-4. – Brush Holder and Brushes

Other AC Generator Components

Some AC generator components are housed in the generator control panel enclosure. These are (a) an Excitation Circuit Breaker, (b) a Voltage Regulator, and (c) a main line circuit breaker.

EXCITATION CIRCUIT BREAKER:

The Excitation Circuit Breaker (CB2) is housed in the generator control panel enclosure and electrically connected in series with the excitation (DPE) wind- ing output to the Voltage Regulator. The breaker is self-resetting, i.e.; its contacts will close again when excitation current drops to a safe value.

If the circuit breaker has failed open, excitation current flow to the Voltage Regulator and, subsequently, to the rotor windings will be lost. Without excitation cur- rent flow, AC voltage induced into the stator AC power windings will drop to a value that is commensurate with the rotor residual magnetism (see Figure 3-5).

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Contents Diagnostic Repair Manual Safety Replacement PartsTable of Contents Section Disassembly and Exploded Views 66-71 Magnetism Electromagnetic FieldsElectromagnetic Induction STATORs AC power windings Simple AC GeneratorMore Sophisticated AC Generator Generator Operating Diagram Meters Measuring AC VoltageVOM Measuring DC VoltageMeasuring Current Measuring ResistanceElectrical Units Ohms LawRotor Assembly Introduction AC GeneratorEngine-Generator Drive System Stator Assembly Brush Holder and BrushesOther AC Generator Components Excitation Circuit BreakerUnderfrequency Adjust 162Voltage Regulator Rotor Residual Magnetism Field Boost CircuitOperation Insulation Resistance MegohmmeterStator Insulation Resistance Test Testing ALL Stator Windings to Ground Test Between WindingsCleaning the Generator Rotor Insulation Resistance TestDrying the Generator Battery Recommended BatteryPrinted Circuit Board Circuit Board ConnectionsControl Panel Component Identification ENGINE DC CONTROLC1 Female Side C1 Male Side C2 Female Side C2 Male SideTerminal Block Terminal BLOCKTB2 TB1 Page Circuit Condition Rest = 12 VDC Control Circuit Condition Start IM1 SP1 IM2 SP2 RED Black Battery Circuit Condition RUN = Idle Control Transformer Output CIRcUIT Condition Stop Fault Shutdown If Problem Involves AC Output Problem 1 Voltage & Frequency Are Both High or LowIntroduction Or Replace If BAD Load Watts Problem 4 No Battery Charge Output Problem 5 No 10A Battery Charge OutputProblem 6 Engine Will Not Crank Problem 7 Engine Cranks But Will Not Start Problem 8 Engine Starts Hard and Runs Rough Problem 9 Engine Starts Then Shuts DownProblem 10 10 Amp Fuse F1 Blowing Problem 11 Unit Overspeeds Problem 12 Idle Control RPM Does Not DecreaseProblem 14 Engine Hunts / Erratic Idle Procedure Test 1 Check No-Load Voltage FrequencyTest 2 Check Main Circuit Breaker ResultsTest 4 Fixed Excitation Test Rotor AMP Draw If circuit breaker is good, go on to TestSet voltmeter to measure AC voltage AC Voltage across Wires 11S and 44S= Refer to Test 4 Results chartRemove air cleaner cover to access stepper motor Set a voltmeter to measure resistanceTest 6 Wire Continuity Test 7 Check Field BoostDisconnect both wires from the Resistor R1 Test 8 DIODE/RESISTORSet volt meter to the diode test range Set volt meter to measure resistanceFrom the 50 Amp receptacle disconnect Wire Test 9 Test StatorUnplug the six pin connector at the Voltage Regulator Test 10 Sensing LeadsTest 11 Excitation Wiring Gain access to the brushes and slip ringsTest 12 Check Brush Leads Test 13 Check Brushes & Slip RingsTest 14 Check Rotor Assembly Test 15 Check Load Voltage FrequencyTest 16 Check Load Watts & Amperage If the unit is overloaded, reduce the loadTest 17 Check Battery Charge Output Test 19 Check Battery Charge Rectifier BCR2Disconnect all wires from the Battery Charge Rectifier Test 22- Check Battery & Cables Test 21- Check 10 Amp FuseBCR1BCR2 Refer back to flow chart Test 23 Check Voltage at Starter Contactor SCTest 24 Check Starter Contactor SC Test 25 Check Starter MotorChecking the Pinion Tools for Starter Performance TestTest 26 Test Starter Contactor Relay SCR Set voltmeter to measure DC voltageTest 27 Check Start-Run-Stop Switch SW1 Test 28 Check Start-Run-Stop Switch SW1 WiringReconnect all wires to the switch Procedure Set voltmeter to measure resistanceRefer back to the Flow Chart Test 29 Check Ignition SparkTest 30 Check Spark Plugs Test 31 Remove Wire 18 / Shutdown Lead Refer to Flow ChartSSR and the Battery Charge Rectifier 2 BCR2 Test 32 Test Start Stop Relay SSRTest 33 Test Wire RUNTest 34 Test Start Stop Relay Wiring Test 35 Check and Adjust IgnitionMagnetos Test 36 Test Fuel Shutoff Solenoid FSS Test 37 Test Fuel Shutoff Solenoid VoltageTest 38 Check Fuel Pump MagnetoTest 40 Valve Adjustment Adjusting Valve ClearanceTest 39 Check Carburetion Adjust the regulated pressure on the gauge to 80 psi 52 Tightening the Jam NutTest 42 Check Oil Pressure Switch Wire Test 43 Check Start Stop Relay SSRTest 45 Check Wire 15 Circuit Test 46 Check Wire 14 CircuitTest 44 Test Starter Contactor Relay SCR Test 47 Check Fuel Shutoff SolenoidTest 50 Check Wire Test 49 Check Wire 15BTest 51 Check Wires 11S & 44S Test 48 Check HourmeterTest 52 Check Idle Control Switch Test 53 Check Idle Control WiringSW2 TB2Test 55 Check TR1 & TR2 Wiring Test 54 Check Idle Control Transformers ICTTest 56 Choke Test Continuity should be measuredMajor Disassembly Remove air deflector Figure B, Item #45 from cross memberSupport Alternator 3317 3026 20 22 25 QTY Description Detail of Battery Tray QTY. Description ELECTRICAL DATA RED Battery Charge Winding BA Brush Assembly Governor Actuator 167 229 15B Power Winding DPE Winding SCR Wiring Diagram 17.5 kW Drawing No G0731 Stator Closest to Bearing Electrical Schematic 17.5 kW Drawing No G0733 Circuit 11 ORG Circuit 13 DRK BLU Circuit 15 PNK ELECTRICAL DATA Page Rated Max DC Load Amperes Current @ 12 Volts Load %Frequency Hz 238-242 59-61 100 Torque Specifications Trim Torque SpecificationsPO BOX 297 WHITEWATER, WI

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.

The 4987 model follows suit with similar advanced features but adds a sleek design ideal for modern interiors. With multiple speed settings and a night mode, the 4987 is perfect for bedrooms or quiet spaces. Its energy-efficient operation coupled with an indicator that signals filter replacement ensures that users maintain optimal performance effortlessly.

The Guardian Technologies 4451 and 4986 models are particularly notable for their enhanced capacity and filtration efficiency. Both units incorporate a three-in-one filtration system that includes a pre-filter, activated charcoal filter, and HEPA filter. With their strategic design, these models not only purify the air but also trap common household odors, making them a popular choice for families with pets.

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.

Finally, the Guardian Technologies 5308 caters to larger spaces, offering impressive air circulation and filtration capabilities. Equipped with a high-efficiency particulate air (HEPA) filter and a powerful fan, it effectively cleans larger areas while maintaining whisper-quiet operation.

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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