11.2.4 ENGINE OIL PRESSURE GAUGE This gauge registers the pressure at which the lubricating oil is circulated through the engine. The pointer must register in green area (1) immediately upon engine starting and when the engine is operated at full load speeds. 11.2.5 ILLUMINATION LAMP This lamp illuminates the starting switch and the ether start switch (if equipped) and is applied when the work light switch is pulled out to either position. 11.2.6 VOLTMETER The voltmeter indicates the condition of the battery. At low idle speed, the gauge pointer should be within the green with white stripe area (l), which indicates a good battery charge.
If the voltage drops below this area (2), the battery should be checked. With the engine operating above low idle speed, the pointer should be within the upper green area (3), which is the normal operating range. If the pointer drops below or exceeds (4) this area, the battery and/or alternator may be at fault. 11.2.7 DRIVE TRAIN OIL TEMPERATURE GAUGE The gauge registers the temperature of the fluid in the drive train. After the engine has operated sufficiently to reach a stabilized drive train temperature, check the gauge. The pointer must be in the green range (1). If the pointer is out of this area (2) shut down the engine and check the following: a. b.
Restricted radiator or oil cooler core. Low drive train oil level. Torque converter charge pressure. Rear main frame breather. C. d. 2-7