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Guardian Technologies 5209 User Manual

Page 49

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Page 47

section 6

Diagnostic tests

2. If load is within limits, but frequency and voltage still drop

excessively, refer back to Flow Chart.

TEST 17 - CHECk bATTERY CHARgE

OUTPUT

PROCEDURE:
1. Disconnect Wire 15 (center terminal) from the Battery Charge

Rectifier 2 (BCR2), which is located under BCR1. They are
stacked. See Page 17 for BCR2 location.

66A

15

BCR2

77A

15

2.0 a

Figure 6-23. – Testing BCR2

2. Set a voltmeter to measure DC Amps. Connect the positive (+)

test lead to the center terminal of the Battery Charge Rectifier.
Connect the negative (-) test lead to Wire 15 previously discon-
nected.

3. Start the generator. The amp reading on the voltmeter should

be approximately 0.6 Amps. Apply full load to the generator.
The amp reading should increase to approximately 2 Amps.

RESULTS:
1. If amperage was measured between 0.6 to 2 Amps in Step 2

and Step 3, the charging system is working.

2. If no amperage was measured, check the voltmeter fuses and

verify the functioning of the Amp Meter. If DC Amp Meter is
good and no current is measured refer to flow chart.

TEST 18 - CHECk 10 AMP bATTERY CHARgE

OUTPUT

PROCEDURE:
NOTE: The battery charge cable must be connect-

ed to the 12 VdC panel receptacle and be charging

a separate battery to perform this test.
1. Disconnect Wire 13A (center terminal) from the Battery Charge

Rectifier 1 (BCR1), which is located on top of BCR2 they are
stacked. See Page 17 for BCR1 location.

2. Set a voltmeter to measure DC Amperage. Connect the posi-

tive (+) test lead to the center terminal of the Battery Charge
Rectifier. Connect the negative (-) test lead to Wire 13A previ-
ously disconnected. See Figure 6-24.

66

BCR1

77

13A

5.0 a

Figure 6-24. – Testing BCR1

3. Start the generator. The amp reading on the voltmeter should

be approximately 0.2 Amps. Apply full load to the generator.
The amp reading should increase. It will depend upon the state
of charge of the battery as to how high current will get. Normal
ranges at full load can be 3-7 amps, but can get as high as 10
amps.

RESULTS:
1. If amperage was measured between 0.2 to 10 Amps in Step 2

and Step 3, the charging system is working.

2. If no amperage was measured, check the voltmeter fuses and

verify the functioning of the Amp Meter. If DC Amp Meter is
good and no current is measured refer to flow chart.

TEST 19 - CHECk bATTERY CHARgE

RECTIFIER (bCR2)

PROCEDURE:
1. Disconnect all wires from the Battery Charge Rectifier.

2. Set the VOM to the Diode Test range. Connect the negative (-)

test lead to the center terminal of the BCR. Connect the posi-
tive (+) test lead to an outer terminal. The meter should mea-
sure approximately 0.5 volts. Now connect the positive test lead
to the other outer terminal. Again, the meter should measure
approximately 0.5 volts.

3. Connect the positive (+) test lead to the center terminal of the BCR.

Connect the negative (-) test lead to an outer terminal. The meter
should measure INFINITY. Connect the negative test lead to the
other outer terminal. INFINITY should once again be measured.

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