Section 9.3
Storage Battery

The lead-acid storage battery is an electro-chemical device for storing energy and converting chemical energy into electrical energy.‪

The battery has three major functions:‪

• It provides a source of current for starting the engine.
• It acts as a stabilizer to the voltage in the electrical system.
• It can, for a limited time, furnish current when the electrical demands exceed the output of the alternator.

Battery Explosion and Acid Burn ‪
To avoid injury from battery explosion or contact with battery acid, work in a well ventilated area, wear protective clothing, and avoid sparks or flames near the battery. If you come in contact with battery acid:‪ Flush your skin with water. Apply baking soda or lime to help neutralize the acid. Flush your eyes with water. Get medical attention immediately.

If you come in contact with battery electrolyte:‪

1. Flush your skin with water.
2. Apply baking soda or lime to help neutralize the acid.
3. Flush your eyes with water for 10-15 minutes.
4. Get medical attention immediately.

In the selection of a replacement battery, it is always good practice to select one of an "electrical size" at least equal to the battery originally engineered for the particular equipment by the manufacturer. This information is listed in Table "Electrical Size of Engine Replacement Battery" . ‪

Section 9.3.1
Replacement of Storage Battery

Refer to the OEM for replacement procedure.‪

Section 9.3.2
Removal and Cleaning of Storage Battery

Precleaning of the battery carrier may be necessary. Refer to OEM guidelines.‪

Remove storage battery as follows:‪

1. Disconnect grounded terminal of the battery.
2. Remove the cable clamps and felt washer.
3. Remove the battery.

Section 9.3.2.1
Inspection of Storage Battery

Refer to OEM guidelines, for storage battery inspection procedure.‪

Section 9.3.3
Installation of Storage Battery

Install the battery as follows:‪

1. Seat the battery level in its carrier.

   NOTICE:
   Do not draw the hold-down clamps down too tightly or the battery case will become distorted or crack.‪

2. Tighten the hold-down clamps evenly until snug.
3. Attach the cable clamps after ensuring the cables and terminal clamps are clean and in good condition.
4. Place a new felt washer at the base of each terminal beneath the cable clamps, to make the cable connections as corrosion resistant as possible.
5. Coat the entire connection with a heavy general-purpose grease.

   Note: Ensure the ground cable is clean and tight at the engine block or frame.

   NOTICE:
   Connect the grounded terminal of the battery last to avoid short circuits, which will damage the battery.‪

6. Check the polarity to ensure the battery is not reversed with respect to the generating system.Refer to "12.1.8 Storage Battery" for verification of proper storage battery installation.