"2047ES / 2647ES / 3247ES" Service & Parts Manual - CE Specifications
March 2008
Page 2-5
Battery Maintenance (in use)
Check battery and surrounding area for signs of damage or corrosion.
Check battery terminals for:
•
Corrosion: Regularly clean connections and apply a nonmetallic grease or protective spray
to retard corrosion.
•
Loose connections: Be sure all cable connections are tightly secured, and that good con-
tact is made with terminals.
•
Broken or Frayed cables: Be sure all connections are good and that no loose or broken
wires are exposed. Replace as necessary.
Check battery electrolyte level. Replenish the electrolyte, if necessary. Remove vent caps before
filling, and USE ONLY DISTILLED WATER. DO NOT OVERFILL. Fill to level indicator (or
1/2 inch
over the top of separators, if there is no level indicator). Fill after charging to prevent overflow of
acid due to expansion. Do not use a hose to add water to batteries.
Allowing the electrolyte level to drop below the top of the separators will lead to shortened battery
life.
Excessive water usage can indicate that a battery has been overcharged, has been subjected to
excessively high temperatures, or is nearing the end of its service life.
Battery Preventative Maintenance:
Every 15 hours (after battery has been charged), spot-check the specific gravity of two or more
cells. A fully charged battery should indicate 1.28 specific gravity. If low reading are noted, check
the following:
•
Check terminals for corrosion, loose connections and broken or frayed cables.
•
Check all cells with a hydrometer for variance in specific gravity. A variation of 0.03 points
or more between cells is a cause for concern. Mark the low cells.
Recheck specific gravity of all cells after recharging. Wash the top of the battery, making sure all
vents are in place. Do not allow cleaning water or other foreign mater to enter the cells. Use a
solution of bicarbonate of soda (5 tsp of baking soda per quart of warm water) and water to wash
the battery if there is an accumulation of acid.
Battery Specific Gravity and Voltage Table
SPECIFIC GRAVITY
VOLTS DC
EACH CELL
1.280
1.130
Fully Charged
Fully Discharged
PER CELL
2.10
1.75
12V BATTERY
12.60
10.50
6V BATTERY
6.30
5.19
