Guardian Technologies 4451 & 4986 Test 9 Test Stator, From the 50 Amp receptacle disconnect Wire

Section 6

DIAGNOSTIC TESTS

14	25 ohm
WIRE 14
REMOVED
14
R1
	D2
4
4
Figure 6-17. – Diode Test Step 9

10.Connect one meter test lead to the top terminal of the resistor (R1). Connect the other meter test lead to the ground terminal. INFINITY or an open condition should be measured.

11.Reconnect the six pin connector, reconnect the C1 connector, reconnect the two wires removed from the resistor (R1).

RESULTS:

1. If the diode or resistor failed any step it should be replaced.

TEST 9 - TEST STATOR

PROCEDURE:

1.From the 50 Amp circuit breaker, disconnect Wires 11 and 44.

2.From the 50 Amp receptacle disconnect Wire 22.

3.Disconnect Connector C1. See Page 17 for connector location.

4.Set a voltmeter to measure resistance.

5.Connect the meter test leads across Stator leads 11 and 22. Normal power winding resistance should be read.

6.Connect the meter test leads across Stator leads 44 and 22. Normal power winding resistance should be read.

7.Connect the meter test leads across Stator leads 11S (Pin 1) and Stator lead 44S (Pin 2) at the C1 connector female side. See Figure 6-18. Be careful not to damage the pin connectors with the test leads, use paper clips - do not force probes into connectors. Normal power winding resistance should be read.

8.Connect the meter test leads across Stator leads 66A (Pin 4) and Stator lead 77A (Pin 5) at the C1 connector female side. See Figure 6-18. Be careful not to damage the pin connectors with the test leads, use paper clips - do not force probes into connectors. Normal battery charge winding resistance should be read.

	77A	55A		11S	PIN
		66A
PIN	2		44S		LOCATION

LOCATION	1
6

PIN					PIN
		55	77	0	LOCATION
LOCATION					12
7	6		66	4

Figure 6-18. – C1 Connector, Female Side

9.Connect the meter test leads across Stator leads 2 (Pin 6) and Stator lead 6 (Pin 7) at the C1 connector female side. See Figure 6-18. Be careful not to damage the pin connectors with the test leads, use paper clips - do not force probes into con- nectors. Normal excitation winding resistance should be read.

10.Connect the meter test leads across Stator leads 66 (Pin 9) and Stator lead 77 (Pin 10) at the C1 connector female side. See Figure 6-18. Be careful not to damage the pin connectors with the test leads, use paper clips - do not force probes into connectors. Normal 10 Amp battery charge winding resistance should be read.

Winding	Wire		Models	Models	Models	Models
	Numbers		004451-0	004582-0,1	004582-2	004583-0
			004986-0	004987-0	004987-1	005308-0
				005209-0
Power	11	& 22	0.125	0.088	0.088	0.067
Power	44	& 22	0.125	0.088	0.089	0.067
Sensing	11S	& 44S	0.25	0.176	0.176	0.134
Excitation	2	& 6	0.576	0.546	1.270	1.010
Battery	66A	& 77A	0.132	0.111	0.111	0.103
Charge
10A	66	& 77	0.145	0.125	0.125	0.117
Battery
Charge

*Resistance values In ohms at 20° C. (68° F.). Actual readings may vary depending on ambient tempera- ture. A tolerance of plus or minus 5% is allowed.

11.Connect the meter test leads across Stator lead 11 and frame ground. INFINITY should be read.

10.Connect the meter test leads across Stator lead 66A (Pin 4) and Stator lead 2 (Pin 6) at the C1 connector female side and frame ground. Be careful not to damage the pin connectors with the test leads, use paper clips - do not force probes into connectors. See Figure 6-18. INFINITY should be read.

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