9-3
TOPAZ
9.2.2 12 VOLT CIRCUIT FUSES
All 12-volt circuits are protected by either a circuit
breaker or a fuse in the control panel. When a
breaker trips or a fuse blows, shut off all electrical
loads on the affected circuit and reset the breaker
or replace the fuse with a new one of the same
amperage. The label on the panel identifies both
the fuse amperage and the applicable circuit.
The fuse panel is located next to the circuit-
breaker panel, in the kitchen.
Fig. 9-4 FUSE PANEL
Fig. 9-5 FUSES USED IN 12 VOLT SYSTEM
Blown
Good
9.2.3 BATTERY MAINTENANCE
RV batteries are reservoirs of 12-volt electrical
energy. Whenever energy is removed from the
battery it has to be replaced in order for the battery
to continue functioning. This energy is restored by
the tow vehicle engine alternator whenever the tow
vehicle engine is running or by the RV charging
system when plugged into a 120-volt power source.
1. Problems:
Two conditions can destroy the function of a
battery. One is called sulphating in which a
layer of sulphate crystals collect on the lead
plates inside the battery. This can happen
when a battery is discharged and not used for a
long period of time (30 days or more) especially
during warm weather. This situation requires
replacement of the battery. The second is
freezing. A battery must be kept at almost full
charge to prevent the liquid electrolyte inside
the battery from freezing.
2. Prevention:
a. Disconnect the battery cables during long
periods of storage.
b. Hook up a battery charger at least once a
month during long periods of storage.
3. Long Term Storage:
If you do not intend to use your trailer for a
longer period of time it might be a good idea to
remove the battery from the trailer and store it
in a cool dry location on a wood or rubber pad.
4. Additional maintenance suggestions:
a. Check the external condition of the battery
monthly. Look for cracks in the cover and
case.
b. Make sure battery is always securely
fastened down.
c. Make sure battery clamps are tight and free
of corrosion.
Do not allow battery electrolyte to contact skin,
eyes, fabrics, or painted surfaces. The electro-
lyte is a sulphuric acid solution which could cause
serious personal injury or property damage.
Wear eye protection when working with batteries.
WARNING
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