PREVOST X3-45 Multiplex, Руководство по обслуживанию

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Incorporated
Testing and Trouble Shooting
BATTERY EQUALIZER OWNER’S MANUAL 12
Test Procedure for Family 2 Battery Equalizers
Models 60-100C, 60-100D and 60-100E
General:
Family 2 Equalizers were designed to be more energy conservative during low power
requirements compared to Family 1 models. This along with unique protection circuitry require Family 2
models to be tested differently than Family 1, or Family 3, 4 and 5 models.
CAUTION
To avoid Reverse Polarity Damage to Family 1 and Family 2 Equalizers when servicing the electrical
system or when performing any work which involves making battery connections always:
1. Remove Equalizer Ground terminal first.
2. Replace Equalizer Ground terminal last.
Family 2 Battery Equalizer Test Procedure:
1. With the coach engine and vehicle loads OFF measure the voltage of Battery A. Replace or recharge
Battery A if less than 11.5 volts.
2. Start the engine and turn ON a 12 volt load such as headlights.
3. Measure the input voltage between the +24 and GND posts of the equalizer. This voltage should be
between 25.5 volts and 29.0 volts. If it isn’t then check the alternator and 24 volt voltage regulator
circuits.
4. Zero the DC Clamp-on ammeter as needed.
5. Put the jaws of the clamp-on ammeter around all wires connected to the equ12 volt terminal
stud.
6. Observe the DC amperage out of the equalizer with the clamp-on ammeter. If there are 3 amps or
more showing on the ammeter, the equalizer is functioning and no further tests are needed.
7. Continue with the following steps ONLY if the ammeter shows less than 3 amps.
8. Measure the voltage between the +24 terminal (meter positive lead) and the +12 terminal (meter
negative lead) of the equalizer. Record this voltage.
9. Subtract 0.60 volts from the number recorded in Step 8.
10. Measure the voltage between the equ12 terminal (meter pos) and the GND terminal (meter
neg).
11. Wait for this voltage to drop below the voltage calculated in Step 9 or the clamp-on ammeter reading
jumps from approximately 0 to more than 3 amps. More than 3 amps means the equalizer is
functioning.
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