Section XXIV. SENDING UNITS AND WARNING SWITCHES TROUBLESHOOTING.

ENGINE OIL PRESSURE SWITCH DOES NOT OPERATE.

TM-5-3805-261-20 Grader Heavy Road Motorized (Caterpillar Model 130 G) Manual
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TM 5-3805-261-20 Section XXIV. SENDING UNITS AND WARNING SWITCHES TROUBLESHOOTING. 7-88. GENERAL INFORMATION. This section lists the common sending units and warning switches 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. 7-89. SENDING UNITS AND WARNING SWITCHES 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. SENDING UNITS AND WARNING SWITCHES TROUBLESHOOTING AND MAINTENANCE PROCEDURES. MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION a. AIR PRESSURE SWITCH NOT OPERATING. Check the air pressure gage for proper reading (Figure 7-135). Figure 7-135 If air pressure switch is damaged or defective--replace. Refer to paragraph 7-91. 7-216

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