44 Operator’s Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU Load Test A battery must be fully charged before performing a load test. To load-test a battery that is fully charged, proceed as follows: 1 Connect a load tester and voltmeter across the battery terminals. 2 Apply a load so that a figure of 300 amps is obtained for 15 seconds to remove the battery surface charge. 3 Wait 60 seconds to let the battery recover and then apply the proper test load to the battery to determine its condition. To get the proper load, use half the cranking performance rating. Read the voltage after 15 seconds. Remember that the minimum voltage varies according to temperature.
Consult the following chart for the proper specification. If the battery voltage does not fall below the minimum test voltage after 15 seconds, the battery is acceptable for use. Electrical Connection Protection If corrosion is seen at any external ring-type terminal connections, such as those used at the starter, alternator, chassis and/or engine grounds, etc., LPS HardCoat Corrosion Protectant must be applied to the connection after disconnecting, cleaning and reconnecting the ring terminal.
Additionally, LPS HardCoat should be applied to any ring-type terminal connector following any type of service procedure which involved disconnecting/reconnecting the ring terminals (such as component replacement, troubleshooting, service and repair, etc.). Load Test Temperature Correction Minimum Voltage Temperature C F 9.6 21 70 9.5 16 60 9.4 10 50 9.3 4 40 9.1 1 30 8.9 7 20 8.7 12 10 8.5 18 0