TB-9-2350-368-25 Powerplant Test Stand M113A2 M113A3 M548A1 M548A3 Download
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TB 9-2350-368-25 4-17 NOTE • Extremely high ambient temperature and high altitude will lower stall speed. • Use STE-ICE to verify the tachometer is calibrated or to get a reading when performing a stall check. • If check fails and a faulty tachometer is suspected, verify tachometer reading by performing STE-ICE check number 10 before sending to next higher level of maintenance. d) Tachometer reading above 2100 indicates transmission problems. Tachometer reading below 1900 rpm indicates a faulty engine. Troubleshoot fuel system. Check for correct vehicle tachometer adapter. If no fault can be found, contact next higher level of maintenance. Figure 4-8. Hook-up List (M113A2/M548A1)