TM 1-1520-238-T-4
Change 5
660.1
613.
DRIVE SYSTEM DYNAMIC MAINTENANCE OPERATIONAL CHECK (cont)
613
Task
Result
n. On pilot caution/warning panel, check OIL
HOT MAIN XMSN 2 indicator.
If OIL HOT MAIN XMSN 2 indicator lights, HOD
displays a 096 C and 139 C (high) oil temperature
reading for XMSN 2, shutdown helicopter and go to
paragraph 671.
If OIL HOT MAIN XMSN 2 indicator lights, and HOD
displays a 070 C to 095 C (normal) oil temperature
reading for XMSN 2, go to paragraph 670.
o. On CPG HOD, check FD/LS display for
NGB 2 oil temperature reading.
If HOD displays a 140 C or more reading for NGB 2
oil temperature, shutdown helicopter and go to
paragraph 622.2.
If HOD displays a reading between 121 C and
139 C for NGB 2, go to paragraph 622.2.
p. On pilot caution/warning panel, check OIL
HOT NOSE GRBX 2 indicator.
If OIL HOT NOSE GRBX 2 indicator lights, HOD
displays a 121 C and 139 C (high) oil temperature
reading for NGB 2, go to paragraph 675.
If OIL HOT NOSE GRBX 2 indicator lights, and HOD
displays a 103 C to 120 C (normal) oil temperature
reading for NGB 2 , shut down helicopter and go to
paragraph 674.
q. On pilot caution/warning panel (fig. 617),
check CHIPS MAIN XMSN indicator.
If CHIPS MAIN XMSN indicator lights, shut down
helicopter and go to paragraph 624.
r. On pilot caution/warning panel, check
CHIPS NOSE GRBX 1 indicator.
If CHIPS NOSE GRBX 1 indicator lights, shut down
helicopter and go to paragraph 676.
s. On pilot caution/warning panel, check
CHIPS NOSE GRBX 2 indicator.
If CHIPS NOSE GRBX 2 indicator lights, shut down
helicopter and go to paragraph 677.
t. On pilot caution/warning panel, check TEMP
INT indicator.
If TEMP INT indicator lights, shut down helicopter and
go to paragraph 678.
u. On pilot caution/warning panel, check TEMP
TR indicator.
If TEMP TR indicator lights, shut down helicopter and
go to paragraph 679.
v. Shut down helicopter (TM 1-1520-238-CL).
NOTE
If all indicators remain retracted, go to step 3.
