Taylor-Dunn SC-011-59 Operation, T Roubleshooting And Replacement Parts Manual Download

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Maintenance, Service, and Repair

Batteries

Page 3

Explosive mixtures of Hydrogen gas are

present within battery cells at all times. Do

not work with or charge battery in an area

where open flames (including gas furnace

or water heater pilots), sparks, cigarettes,

or any other sources of combustion are

present. Always provide ample ventilation

in rooms where batteries are being

charged. Failure to do so may result in

severe bodily injury and/or property

damage.

Battery electrolyte will stain and corrode

most surfaces. Immediately and

thoroughly clean any surface outside of the

battery that the battery electrolyte comes

in contact with. Failure to clean may result

in property damage.

1. Make sure the key-switch is in the “OFF”

position, then remove the key.

2. Place the forward-reverse switch in the

center “OFF” position.

3. Set the park brake.
4. Place blocks under the front wheels to

prevent vehicle movement.

5. Disconnect the main positive and

negative cables at the batteries.

A battery is a live electrical source. It

cannot be disconnected or neutralized. Do

not drop any tool or conductive object onto

the battery. A conductive object that comes

in contact with the battery terminals will

initiate a short circuit of the battery. This

could cause the battery to explode

resulting in severe bodily injury and/or

property damage.

Battery electrolyte is poisonous and

dangerous. It contains sulfuric acid. Avoid

contact with skin eyes or clothing. Wear

rubber gloves and safety glasses while

servicing batteries. DO NOT INGEST! This

may result in severe bodily injury.

TESTING

NOTE: A combination of the Load Test and Specific

Gravity Test should be used to accurately
determine the condition of the batteries.

Load Test (6-volt batteries only)

NOTE: The batteries must be fully charged before

performing this test.

1. Clean the batteries. Refer to

Cleaning the

Batteries

section for information on cleaning the

batteries.

2. Load test each battery using a battery load test

meter (available at most auto parts distributors).
Follow the instructions provided with the test meter.

• If any battery fails the load test, then it

should be replaced.

NOTE: If the batteries are over one year old, it is

recommended to replace them as a set.

• If all batteries fail the test you should

check the charging system before
replacing the batteries. Refer to

Charger Troubleshooting

section for

information on checking the charging
system.

Specific Gravity Test

NOTE: The batteries must be fully charged before

performing this test.

The specific gravity of a cell is an indication of the actual
state of charge of the cell. A fully charged cell should
have a reading of 1275 to 1300 (see the illustration to
the right). A discharged battery will read 1100. Ideally,
all cells in a battery pack will have the same reading.
Any cells in a battery pack that vary by more than 30-
points may be an indication of a bad cell.