TM 5-3805-261-20Section XI. CAB SWITCH PANEL TROUBLESHOOTING.7-40.GENERAL INFORMATION. This section lists the common cab switch panel malfunctions which may occurduring the operation of the 130G Grader. You should perform the tests, inspections and corrective actions in the orderlisted. Follow the troubleshooting procedures listed below step-by-step until you can go no further.7-41.CAB SWITCH PANEL TROUBLESHOOTING PROCEDURES. This section cannot list all possiblemalfunctions, nor can it list all possible tests, inspections or corrective actions. If a malfunction is not listed, contact yoursupervisor.CAB SWITCH PANEL TROUBLESHOOTING AND MAINTENANCE PROCEDURES.MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONa.WINDSHIELD WIPERS DO NOT OPERATE.Step 1. Check fuse number 4A.If the fuse is blown--replace. Refer to paragraph 7-62.Step 2. Test the continuity of the windshield wiper switch. Connect one lead of multimeter to back of switch andone lead to ground (Figure 7-56).Figure 7-56If the multimeter needle does not move, the circuit does not have continuity. Replace windshield wiper switch.Refer to paragraph 7-43.7-105
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