TM 1–1520–238–T–1
Change 5
4–36.3
4–5A HARS – INTERACTIVE FD/LS CHECK
4–5A
(ADD) (cont)
TASK
RESULT
f. On HARS panel,
rotate HARS switch
to NORM.
If 1 was selected, once the
HARS has started outputting
data, the following message
(prompt) appears:
HARS
TEST IN PROGRESS
If the prompt message
remains for more 90
seconds, the HARS is
NO–GO.
If 2 was selected, the
following message (prompt)
appears:
PUT HARS POWER
SWITCH TO OFF – THEN
TO NORM
ANY KEY FOR FDLS
MENU
There is no display of HARS
status (NO–GOs) when the
test is completed.
NOTE
Once the HARS is turned on, it requires
approximately 6 to 9 minutes for warm–up and
inertial alignment.
If FD/LS NO–GO display
appears on the HOD, perform
the following in sequence:
(1) Rotate HARS switch to
OFF, then back to
NORM.
(2) If HARS fails the FD/LS
check, perform HARS
– SELF – CHECK
(TM 11-1520-238-23-2).
(3) If HARS fails
HARS – SELF – CHECK,
refer to
TM 11-1520-238-23-2 for
troubleshooting
Navigation System.
