TM 9-2320-362-14&P
3-17. TACH/HOURMETER BOX REPLACEMENT (Cont’d)
FOLLOW-ON TASKS:
l Connect battery ground cable (TM 9-2320-280-20).
l Start engine (TM 9-2320-280-10) and check operation
at idle of tach/hourmeter box.
Tachometer should
display 650 ± 25 RPM and hourmeter should advance
0.1 hours for 6 minutes of operation.
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