Monaco 2008 Knight, Руководство пользователя

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electrIcal systems - chassIs — 9
1
2 0 0 8 K n I G h t
alternator
The function
of the alternator
is an electrical
system voltage
maintainer, not a
battery charger.
When the engine
is operating,
the alternator
maintains electrical system voltage
relative to a load, such as headlights and
windshield wipers. When a heavy load is placed
on the alternator, such as trying to charge dead
house batteries, the operating temperature of
the alternator will increase. Excess operating
temperature of the alternator for extended
periods of operation can lead to premature
failure of the alternator.
The alternator replaces amp hours the chassis
battery used to start the engine. The amount of
charge the alternator sends to the chassis battery
is dependent on the amount of time the engine
is operated. Repeatedly starting the engine for
short periods may not be enough operating time
to adequately replace the amp hours the chassis
battery uses to start the engine.
When traveling, keep an eye on the voltmeter
in the dash area. Normal readings should be
between 13 to 14.5 Volts DC. Voltage indications
higher or lower indicate a potential problem
with the charging system. If the alternator
output drops below an acceptable level, a charge
indication warning lamp will illuminate.
NOTE
The alternator is not designed to charge
the house batteries from a complete
discharge to a full state of charge. The
alternator will maintain the battery
charge during travel, supplying the DC
current necessary to operate running
lights or other DC loads.
If the house batteries are in a low state of
charge, it is recommended to charge the house
batteries with the converter/inverter or an
auxiliary battery charger before driving the
motorhome.
CAUTION
Long-term use of the inverter to operate
the microwave while in transit will
damage the alternator. Use the generator
to operate the microwave while in
transit.
Alternator Testing Procedure
Alternator Testing:
Check all wiring for burnt or loose
electrical connections. Repair as needed.
Check all grounds and electrical
connections to confirm they are clean and
tight.
- Alternator ground to chassis frame.
- Motor block ground to chassis frame.
- Chassis battery ground to chassis frame.
- Alternator positive output to isolator relay
terminal.
Inspect
the alternator for damage.
Check belt, pulley and fan for wear.
Replace as needed.
DO NOT disconnect the battery or
battery wire from the alternator with the
engine running as this can damage the
alternator or regulator.
The pulley for the alternator should be
torqued to 80 ft. lbs.
Chassis battery voltage with the engine
OFF
should range from 12.2 to 12.7 Volt
DC.
Chassis battery voltage with the engine at
idle should range 13.5 to 14.2 Volts DC.
The output of the alternator range is 13.6
to 15.4 Volts DC. Connect a volt meter
to the (B+) terminal of the alternator and
chassis ground. Idle the engine up to
1200 RPM.
Connect a clamp-on amp-meter, if
available, to the positive battery cable to
verify the battery state/rate of charge.
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DUVAC
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