Kenworth T410, Driver'S Handbook Manual

Page: 281 / 418

CAT: 8612 November 2019 Page 255
PREVENTIVE MAINTENANCE
Slow Battery Charging
If a battery has lost charge gradually over a long period of time, recharge
at 6 to 8 amps for about 8 to 10 hours.
• Follow the instructions that come with your battery charger.
• It is not necessary to remove the battery from the compartment.
Charger cables must be connected positive to positive (+ to +) and
negative to negative (- to -). If connected incorrectley, batteries could
explode causing serious personal injury.
1. Always make sure the battery charger is OFF before connecting or
disconnecting the cable clamps. To reduce the danger of explosions
and resulting personal injury, do not connect or disconnect charger
cables while the charger is operating.
2. Make sure the electrolyte level in each cell is between the ‘MIN’
and ‘MAX’ marks. If the fluid level is below the mark, correct the
condition.
3. Disconnect the battery cables.
4. Connect charger cables.
5. Start charging the battery at a rate not over 6 amps. Normally, a
battery should be charged at no more than 10 percent of its rated
capacity.
6. After charging is complete, switch off charger and disconnect
charger cables from the batteries.
Fast Battery Charging
If the battery(s) has lost its charge rapidly, from cranking an engine that
failed to start, recharge at 30 to 40 amps for 1 to 2 hours.
A rapid charge rate generates an explosive mixture of hydrog en and
oxygen gases. A spark or flame near a battery on charge could cause
the battery to explode with considerable force. When fast-charging,
remove caps so that pressure does not build up.
Use care when fast-charging. Watch for gassing. Check electrolyte. If it
starts gassing violently, reduce the charging rate. Battery voltage should
not exceed 14.2 volts. This is the recommended alternator voltage setting.