TM 1-1520-238-T-4
6–58
Change 5
6–13.
DRIVE SYSTEM – DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont)
6–13
M58-280
HOD
Figure 6–20.
CPG HOD
Task
Result
b. On pilot caution/warning panel (fig. 6–17),
check OIL PSI NOSE GRBX 1 indicator.
If OIL PSI NOSE GRBX 1 indicator lights, and HOD
displays a 55 LB to 85 LB (normal) reading for NGB
1, shutdown helicopter and go to paragraph 6–47.
If OIL PSI NOSE GRBX 1 indicator lights, and HOD
displays a 29 LB to 54 LB (low) reading for NGB 1 oil
pressure, go to paragraph 6–48.
c. On CPG HOD (fig. 6–20 ), check FD/LS
display for XMSN 1 oil pressure reading.
If HOD XMSN 1 oil pressure displays 0 LB oil
pressure, shutdown helicopter and go to
paragraph 6–16.
If HOD XMSN 1 oil pressure displays 50 LB oil
pressure, shutdown helicopter and go to
paragraph 6–16.1.
If HOD XMSN 1 oil pressure displays >99 LB oil
pressure, shutdown helicopter and go to
paragraph 6–16.2.
If HOD XMSN 1 oil pressure displays 54 LB oil
pressure or less, shutdown helicopter and go to
paragraph 6–16.3.
