Battery - Chassis - Holiday Navigator 2003 Owner's Manual

Electrical Systems - Chassis
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BATTERY -
CHASSIS
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This will help prevent the possibility of dead batteries. If an AC source is not
available, and the motorhome is not going to be used or is stored more than
48 hours, it is recommended to turn the battery disconnect switch off.
NOTE: The solar panels will charge the batteries with the disconnect
switches off.
WARNING: When the frame or other welding is involved for
motorhome repair, or modification, the following precautions are
required to protect electronic components in the motorhome chassis:
1. Disconnect the (+) positive and (-) negative battery connection
and any electronic control ground wires connected to the frame
or chassis.
2. Cover electronic control components and wiring to protect from
hot sparks.
3. Disconnect the wiring harness connectors at the transmission
electronic control unit. Open bed storage compartment, open
engine access door. The ECU is located above the transmission.
4. Do not connect welding cables to electronic control components.
5. The welding ground cable should be attached no more than two
feet from the part to be welded.
The chassis battery operates only chassis and engine functions. The chassis
battery is a crank type battery, producing the high amperage needed to start the
engine. Engine starters initially require a large amount of current to crank an
engine. Initial starter amperage draw exceeds 1,200 Amps. The type of
application in which the engine battery is used differs from the house battery
application. The engine battery state of charge remains consistent.
Maintenance is still required to the engine battery. Regular electrolyte level
checks and hydrometer readings should be performed. High electrolyte
consumption, or inconsistent hydrometer cell readings, may indicate a charging
system problem. Perform a charging system and current draw check if the
battery is exhibiting abnormal hydrometer readings.
NOTE: Replacement batteries should have the same cold cranking
amp (CCA) rating.
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