TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 1235 of 1275
TM 9-2350-311-20-1 WARNING On some vehicles that have the MASTER switch in negative battery cable, sparking may occur if VTM case touches vehicle while MASTER switch is off and STE/lCE-R power is on. This sparking in presence of fuel or vapors presents potential hazard. Avoid hazard by doing all testing with vehicle MASTER switch on. Excessive pressure can damage transducer. Pressure being measured should not exceed 1000 psig (68.9 kg/sq cm) Refer to TM 9-4910-571-12&P for offset fault isolation. Go to step 3, Figure 3, sheet 33. Figure 3, Sheet 32 of 36 I-58 CAUTION NOTE During offset test, systme must be depressurized.