TM 5-3805-261-20
Section XIV. ELECTRICAL SYSTEM TROUBLESHOOTING.
7-52.
GENERAL INFORMATION. This section lists the common blade float limit switch malfunctions which may occur
during the operation of the 130G Grader. You should perform the tests, inspections and corrective actions in the order
listed. Follow the troubleshooting procedures listed below step-by-step until you can go no further.
7-53.
ELECTRICAL SYSTEM TROUBLESHOOTING PROCEDURES. This section cannot list all possible
malfunctions, nor can it list all possible tests, inspections or corrective actions. If a malfunction is not listed, contact your
supervisor.
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
BLADE FLOAT LIMIT SWITCH DOES NOT OPERATE.
Step 1. Check fuse number 10A.
If fuse is blown--replace. Refer to paragraph 7-62.
Step 2. Test the continuity of the blade float limit switch. Connect one lead on multimeter to switch and one lead to
ground (Figure 7-72).
Figure 7-72
If the multimeter does not move, the circuit does not have continuity. Replace blade float limit switch. Refer to
paragraphs 7-55 and 7-56.
7-132
