TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 1203 of 1275
TM 9-2350-311-20-1 - Set TEST SELECT switches to 10, press and release TEST button. - See paragraph 9-14 to adjust engine idle to 650 to 750 rpm. - Watch VTM readout display for about 10 seconds to verify idle speed remains within tolerance. Figure 2, Sheet 20 of 20 I-26