Reference: Service Magazine, SEBD1672 July 1986, “Brushless Alternators May Not Charge In Certain Conditions” Start the engine and set the throttle to at least 75%.…

Turn the keyswitch to the OFF position. Connect the 9U-5795 Current Probe to a DMM (digital multimeter) or use a 225-8266 Ammeter Tool Gp .…

Check the condition of the alternator drive belt. If the drive belt is oily, clean the pulleys. Replace the drive belt, and retest the system.…

Verify that the alternator “B+” terminal nut is tight and verify that the wire has a good connection to the “B+” terminal. Many Caterpillar machines…

T2a – Undesired Electrical System Current – Test (For Machines Equipped With a Main Disconnect Switch) Turn off all of the accessories. Turn the keyswitch…

Ensure that the batteries are NOT fully charged. Fully charged batteries have open circuit voltage above 12.5 V on 12 V systems or 25 V…

CHECK THE SYSTEM VOLTAGE. Before you start the machine, connect a voltmeter between the “B+” terminal and the case of the alternator. Turn OFF all…

Often when problems with the charging system are being investigated, the alternator is not the problem. If a low battery condition is present, test the…

Hexadecimal UID numbers must be converted to their decimal equivalents in order to be placed in the XML code for the custom pages. The hexadecimal…

Limited Modbus Master The PL1000E can act as a “Modbus Master” in a limited fashion. As a “Modbus Master”, the features of the PL1000E are…