F-code
Section
C-code
PS S5.12 5460 24 Volt, 400 Amp Transistor Controller Version no
T-code
001
HMX
3. Remove all dirt or corrosion from the bus bar area. The controller should be wiped clean with a moist rag. Allow it to dry before reconnecting the battery. 4. Make sure the connections to the bus bars are tight. Use two well insulated wrenches for this task in order to avoid stressing the bus bars.
1.3. Diagnostics and Troubleshooting The 1244 controllers provide diagnostics information to assist technicians in troubleshooting drive system problems. The diagnostics information can be obtained by reading the appropriate display on the PMC handset. The information can also be obtained by looking at the status LED built in the controller that is visible thought the window in label. 1.3.1. Handset Diagnostics The handset presents complete diagnostic information. Faults are displayed in the Diagnostic Menu, and the status of the controller inputs/outputs is displayed in the Test Menu. Accessing the Diagnostic History Menu provides a list of the faults that have occurred since the diagnostic history file was last cleared. Checking (and clearing) the diagnostic history file is recommended each time the unit is brought in for maintenance. See C-code 5710 for complete operating instruction for the PMC handset. Refer to the troubleshooting chart for suggestions covering a wide range of possible faults. 1.3.2. Troubleshooting Troubleshooting can be broken down into three sections: 1. Handset 2. Status LED on the controller 3. Electrical circuits These can be broken down into control circuit and power circuit. By knowing the exact symptoms of the truck operation, many hours of troubleshooting time can be saved. If the proper switch operates for the chosen direction and speed, then the problem can be found in the controller or the power circuit of that function. 254
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1997-07-15
