TB-9-2350-368-25
M113A2/M113A3/M548Al/M548A3 FAMILY OF VEHICLES INCLUDING OPPOSING FORCES SURROGATE VEHICLE (OSV)
FABRICATION AND OPERATION OF POWERPLANT TEST STAND
FEBRUARY 2003
TB-9-2350-368-25 - Page 89 of 120
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)
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