The charging rate of the alternator should be checked when an alternator is charging the battery too much. The charging rate of the alternator should be checked when an alternator is not charging the battery enough. Make reference to the Specifications module in order to find all testing specifications for the alternators and regulators.
No adjustment can be made in order to change the rate of charge on the alternator regulators. If the rate of charge is not correct, a replacement of the regulator is necessary.
The alternator requires large volumes of engine oil for proper cooling. 7.6 L (2.00 US gal) per minute of engine oil is required when the engine is operating at high speeds. 1.9 L (0.50 US gal) per minute of engine oil is required while the engine is idling.