Charging Battery - Yale 524150797 Maintenance Manual

Battery Maintenance
Specific Electrolyte
Gravity Temp.
Reading
1.210 31°C (88°F)
1.210 27°C (81°F)
1.210 25°C (77°F)
1.210 18°C (64°F)
+0.001 or −0.001 for each 2 degrees C from the 25-
degree base value.
Figure 15. Specific Gravity Check
Figure 16. Battery Thermometer
12
Correction Correct
Points Value
+0.003 1.213
+0.001 1.211
0.000 1.210
−0.004 1.206

CHARGING BATTERY

NOTE: There can be one of two types of batteries.
One type has removable cell caps. The other type has
sealed cells. The sealed batteries require a different
charger. The electrolyte level or specific gravity cannot
be checked, and water cannot be added to the
electrolyte of these sealed batteries.
WARNING
The acid in the electrolyte can cause injury. If
electrolyte is spilled, use water to flush the area.
Make the acid neutral with a solution of sodium
bicarbonate.
Batteries generate explosive fumes when they are
being charged. Keep fire, sparks, and burning
material away from the battery charger area.
Prevent sparks from the battery connectors.
Charge batteries only in the special area for
charging batteries. When charging the batteries,
keep the vent caps clean. The battery charger area
must have ventilation so that explosive fumes are
removed. Open the hood over the battery or
remove the cover if the battery has a cover.
Disconnect the battery when doing cleaning and
maintenance.
If the lift truck has been operated with a low
battery, check the contactors for welded contacts
before a charged battery is connected. The circuit
will not reset and lift truck operation cannot be
controlled if the contacts are welded. To check the
contacts, see the Contactor inspection procedure
for your lift truck.
CAUTION
Use only battery chargers approved by the battery
manufacturer or dealer.
CAUTION
NEVER connect the battery charger plug to the
plug of the lift truck. You can damage the traction
control circuit. Make sure the charger voltage is
the correct voltage for the battery.
Correct use of the hydrometer (see Figure 14) and
proper operation of the battery charger is important.
Also see Figure 15. Follow the instructions of the
charger manufacturer. NEVER let the battery
discharge below the minimum value given by the
2240 YRM 0001