ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-14. IMU Testing, Alignment, and Troubleshooting Continued
Malfunction
Normal indication
indication/corrective action
Test procedure
1i. Install IMU alignment data tape, for IMU
being tested, on tape reader. Tape is
located in storage container on IMU con-
nector 2J2. Be careful not to tangle the
coiled tape
1j. Set tape reader SPOOLING switch to
ENABLE
MEMORY LOAD switch-
1k. Press MEMORY LOAD switch-indicator to
Tape stops in middle or does not stop
indicator lights. Tape reader
on
at end: Rewind tape and reload.
reads tape and stops at end
Make sure tension is applied to the
of tape
front of the tape to ensure the sprocket
wheel is properly engaged
1l. Press MEMORY LOAD switch-indicator
MEMORY LOAD switch-
indicator goes off
to off
REVERSE switch-indicator
1m. Press REVERSE switch-indicator to on
lights. Tape rewinds and stops
near beginning
1n. Press REVERSE switch-indicator to off
REVERSE switch-indicator
goes off
1o. Press VERIFY switch-indicator to check
VERIFY switch-indicator
Tape does not stop at end: Rewind tape
tape against memory contents
lights. Tape reader reads
and verify
tape and stops at end of tape
Tape stops before end and VERIFY
ERROR indicator lights: Rewind
tape, reload and verify
1p. Press VERIFY switch-indicator to off
VERIFY switch-indicator goes
off
1q. Set tape reader SPOOLING switch to
DISABLE
lr. Remove tape from tape reader and store in
container on IMU connector 2J2
1s. Press PADS ON/OFF switch-indicator, then
PADS ON/OFF switch-indicator
ENTER
goes off
PADS turn off
1t. Set PS BATTERY and VEHICLE circuit
breakers CB1 and CB2 to OFF. Set TTY
MOTOR switch to OFF
lu. Press SPU ON switch-inidcator to OFF
SPU ON switch-indicator goes
off
4-83
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