Crown C48-2+2 Owner's Manual And Service Manual page 31

OPERATION AND SERVICE INFORMATION
! WARNING !
To reduce the possibility of fire, never attach a battery charger to a vehicle that is to
be unattended beyond the normal charging cycle. Overcharging could cause damage to the vehicle
batteries and result in extreme overheating. The charger should be checked after 24 hours and
unplugged after the charge cycle is complete.
Before charging the batteries, inspect the plug of the battery charger and vehicle receptacle housing for dirt or
debris.
Charge the batteries after each days use.
Monthly
Inspect all wiring for fraying, loose terminations, corrosion or deterioration of insulation.
Check that the electrolyte level is correct and add suitable water as required.
Clean the batteries and wire terminations.
Electrolyte Level and Water
The correct level of the electrolyte is 1" (25 mm) above the plates in each cell (Ref Fig. 16).
Fig.16 Correct Electrolyte Level
This level will leave approximately 3/4" ( 19.5 mm) of space between the electrolyte and the vent tube. The
electrolyte level is important since any portion of the plates exposed to air will be ruined beyond repair. Of
equal importance is too much water which will result in electrolyte being forced out of the battery due to
gassing and the increase in volume of the electrolyte that results
from the charging cycle.
CAUTION
Do not overfill batteries. The charging cycle will expel electrolyte and result in component
damage.
28
Owner's Manual and Service Guide