Battery Lnstal Lation - Hobart 9OC24S Operation Manual

GENERATOR DIVISION
HOBART BROTHERS COMPANY
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OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A~.::.:': .
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
(3) Test with hydrometer
Remove filler caps and check the specific gravity of electrolyte in each cell.
!
If specific gravity is 1.230 or below, add water if necessary and charge the ;
battery until it is fully charged. A fully charged battery will give a specific
gravity reading of from 1.265 to 1.285. The specific gravity of a fully dis-
charged battery may range from 1.140 down to 1.120.
NOTE: The battery is fully charged when all ce I Is are "gassing" freely, and
the specific gravity ceases to rise for three successive readings taken
at hourly intervals.
If the Battery-Starter Test indicated the battery voltage was below the acceptacle
voltage value, test each cell with the hydrometer. If the difference in specific'
gravity readings between any two cells is 50 points (0.050) or more, the battery
is not satisfactory for service and should be replaced.
F.
Cleaning the Battery (see Fig. 16)
Disconnect battery lead connectors from battery posts. Brighten terminal and post
surfaces with steel wool, a wire brush, or special terminal cleaning tool. If the
top of the battery is dirty, it may be cleaned with a brush dipped in ammonia
or soda solution. The vent plugs must be tightened to prevent any solution from
getting into the battery cells. After the foaming stops, flush off the battery with
clean water. Make certain that the vent holes in filler caps are not clogged.
Install cable leads on batteries and coat lightly with Vaseline or spray with a
commercial anti-corrosion product.
To Starter
/To Ground
Battery lnstal lation
Figure 16
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