Battery Charging and Changing Procedures
OSHA Directive, STD 1-11.4 - 29 CFR 1910.178(g)(2); Battery Charging Stations for Fork Lifts and Other Industrial Trucks, 10/30/1978 states:
"Battery charging" areas where forklift batteries are charged only--no maintenance is performed, batteries are not removed from the forklifts and no electrolyte is present in the area--are not subject to the requirement of [29 CFR 1910.178(g)(2)]. The charging areas shall be in compliance with [29 CFR 1910.178(g)(1), (8), (9), (10), (11) and (12)]. Personal protective equipment shall be used when and where required.
- When charging batteries, pour acid into water. Never pour water into acid.
- Check to assure that vent caps are functioning properly. The battery (or compartment) cover(s) should be open to dissipate heat.
- Prohibit smoking in the charging area.
- Take precautions to prevent open flames, sparks, or electric arcs in battery charging areas.
- Remove all metallic jewelry before recharging. Tools and other metallic objects must be kept away from the top of uncovered batteries.
- Wear personal protective equipment (face shield, safety goggles, neoprene or rubber gloves and apron).
- Where the eyes or body of any person may be exposed to injurious corrosive materials, suitable facilities for quick drenching or flushing of the eyes and body must be provided within the work area for immediate emergency use.
- Check the electrolyte level before recharging. Record the specific gravity with the hydrometer in the service log. Check the pilot cell.
- Check the water level. Do not add water prior to recharging. Record in service log.
- Check the voltage. If the battery has sealed vents, do not recharge with a current greater than 25 amperes.
- Unplug and turn off the charger before connecting or disconnecting the clamp connections.
- Attach the positive clamp (+, usually colored red) to the positive terminal first and then the negative clamp (-, usually colored black) to the negative terminal, keeping the proper polarity.
- Turn off the charger if the battery becomes hot or the electrolyte fluid comes out of the vents. Restart charging at a lower charging rate.
- Check water level after charging. Add distilled water or de-ionized water if water level is below level indicator. Record in service log.
- Return battery to forklift with lifting beam and secure in place after charging.
- Check the indicator on the hour meter to see that battery is fully charged.
Knowledge Check Choose the best answer for the question.
7-4. Which of the following actions is correct when charging batteries?
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