Guardian Technologies 4451 & 4986, 4582 & 4987, 4583, 5308 AC Voltage across Wires 11S and 44S=

Section 6

DIAGNOSTIC TESTS

9.Shutdown the generator.

10.Reconnect Wire 2 to the Excitation Circuit Breaker.

11.Connect one meter test lead to Wire 11S located in the six pin connector previously removed from the Voltage Regulator. Connect the other meter test lead to Wire 44S located in the six pin connector previously removed from the Voltage Regulator. See Figure 6-11. Be careful not to damage the pin connectors with the test leads.

0	PIN 1	VOLTAGE
162	PIN 2
11S	PIN 3	REGULATOR

4PIN 4

44S	PIN 5
6	PIN 6

Figure 6-11. - Voltage Regulator Pin Connector Wire

Number Locations

12.Start the generator.

13.Measure the output voltage across wires 11S and 44S and record the results.

AC Voltage across Wires 11S and 44S= _________

14.Shutdown the generator.

15.Remove the Jumper lead between Wire 14 and Diode D1.

16.Set the voltmeter to measure DC amperage (10 Amp Range). Switch the test leads on the meter if required.

1.5 A

14

WIRE 14

REMOVEDR1 14

D2

4

4

Figure 6-12. – Measuring Amp Draw

17.Connect the positive meter test lead to Wire 14. Connect the negative test lead to Wire 4 at Diode D1. See Figure 6-12.

18.Start the generator.

19.Measure the DC Rotor Amp draw and record the results.

Rotor Amp Draw =________________

20.Shutdown the generator.

21.Reconnect the six pin connector.

22.Reconnect Wire 14 to the resistor R1.

RESULTS:

Refer to "TEST 4 RESULTS" chart.

TEST 4 RESULTS

	A	B	C	D	E	F	G
VOLTAGE RESULTS	ABOVE	ABOVE	BELOW	ZERO OR RESIDUAL VOLTAGE	BELOW	BELOW	ABOVE
WIRE 2 & 6
	60 VAC	60 VAC	60 VAC	(2-12 VAC)	60 VAC	60 VAC	60 VAC
EXCITATION WINDING
VOLTAGE RESULTS	ABOVE	BELOW	ABOVE	ZERO OR RESIDUAL VOLTAGE	BELOW	BELOW	ABOVE
WIRE 11S & 44S	120 VAC	120 VAC	120 VAC	(2-12 VAC)	120 VAC	120 VAC	120 VAC
ROTOR AMP DRAW	1.8 A	1.8 A	1.8 A			1.8 A	ZERO
12.5 kW (MODEL 004451-0)				ZERO CURRENT DRAW	2.3 A		CURRENT
	± 20%	± 20%	± 20%			± 20%
(MODEL 004986-0)							DRAW
ROTOR AMP DRAW							ZERO
15 kW (MODEL 004582-0,1)	1.6 A	1.6 A	1.6 A			1.6 A
				ZERO CURRENT DRAW	2.1 A		CURRENT
(MODEL 004987-0)	± 20%	± 20%	± 20%			± 20%
							DRAW
(MODEL 005209-0)
ROTOR AMP DRAW	0.96 A	0.96 A	0.96 A			0.96 A	ZERO
15 kW (MODEL 004582-2)				ZERO CURRENT DRAW	1.5 A		CURRENT
	± 20%	± 20%	± 20%			± 20%
(MODEL 004987-1)							DRAW
ROTOR AMP DRAW	0.89 A	0.89 A	0.89 A			0.89 A	ZERO
17.5 kW (MODEL 004583-0)				ZERO CURRENT DRAW	1.4 A		CURRENT
	± 20%	± 20%	± 20%			± 20%
(MODEL 005308-0)							DRAW

(MATCH RESULTS WITH LETTER AND REFER TO FLOW CHART – Problem 2 on Pages 29 & 30)

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