D250E Series II and D300E Series II Articulated Trucks Caterpillar

A battery should not require more than 30 cc (1 oz) of water per cell per week. This should exist with the proper charging rate and with a moderate climate.

Inspect the electrolyte level in each battery cell. Maintain the electrolyte level to the bottom of the filler openings. Use distilled water. If distilled water is not available, use clean drinking water.

Note: A maintenance free battery does not require inspection.

In extreme temperatures, check the water in the cells weekly.

All batteries must have the following maintenance at every 250 hours.

1. Park the machine on a level surface. Ensure that the parking brake is fully engaged. Lower the dump body and stop the engine.

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2. The batteries are located under panels at either side of the engine hood.

3. Remove the two panels.

4. Check the battery retainers. Tighten the battery retainers.

5. Clean the top of the batteries with a clean towel. Do not allow dirt to build up on the battery. Conductive paths may develop. Under dusty conditions, clean the tops of the batteries often.

   Buildup of dirt may lead to the following electrical problems:

   • Electrical charge may be drained from the batteries.

   • The Engine Monitoring System may function with the disconnect switch in the OFF position.

6. Lift the post covers in order to remove the cable from the battery terminal. Clean the battery terminals. A fine grade of sandpaper may be used for cleaning.

7. Petroleum jelly may be used as protection against corrosion. Apply corrosion inhibitors after you connect the cables to the battery post.

8. Install the cables.

9. Position the post covers.

10. Install the two panels.