TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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' . . . ,••• . . . : . ... : I '• I I I I .. FROM CRANKSHAFT :.': DAMPER ANO OIL FILTER. : HOUSING · · - . · · . . } . . · ' ' : .• ,' . " : I I I FROM CRANKCASE ANO ACCESSORY DRIVE HOUSING ... TM 9-2815-220-34 REAR SHROUD ---� /,,) . - ... - - ···· . . • CRANKCASE BREATHER TUBE TA02 I 494 f'ig111·r 1·14. '11gi1+• rn111kr111· 1·1·11(pr 11111/ fire e.cli11g11h1her yxllll -Jluw digru111. 1·21. Transmitters and Switches a. Oil Pressure Gage Transmitter (figs. 1-1 and 1-7.1). The electrical oil pressure gage transmitter is located to the front of the crankcase at the open- ing in the gallery line below the No. 1 right cylin- der. This sealed transmitter consists of a threaded plate to which a diaphragm, a radially notched spring, and an overload guard plate are crimped. Electrical resistance in the transmitter varies di- rectly as the oil pressure varies. The resulting var- iation in the current is transmitted to the electrical oil gage on the vehicle instrument panel. b. Low Oil Pressure Waming Ught Switch (figs. 1-1 and 1-7.1). The low oil pressure waing light switch is furnished with the engine and is located at t�e lower right side of the crankshaft damper and oil filter housing. The electrical contact points in this switch close when the oil pressure in the main oil gallery is below 11± 2 psi. Completion of the electrical circuit will light the low pressure waing lamp on the vehicle instrument panel. c. Oil Temperature Transmitter. The oil temper- ature gage transmitter is located at the upper right side of the crankshaft damper and oil filter housing above the oil pressure regulator valve. Change 1 1·21