TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM9-2350-311-20-1 - Set TEST SELECT switches to 10, press and release TEST button. 2 - Increase engine rpm to 2100 rpm. - Watch engine oil pressure gage. I Is oil pressure from 40 to 70 psig (2.8 to 4.8 kg/sq cm)? NOTE If VTM does not display engine speed, refer to pulse tachometer fault isolation in TM 9-4910-571-12&P and correct problem. Go to NG 31 (Figure 3, sheet 27). Go to GO 6 (Figure 2, sheet 17). Figure 2, Sheet 16 of 20 I-22