Install guide

ARMY TM 5-6675-308-34
MARINE CORPS TM 08837A-34/2
Table 4-14.1 IMU Testing, Alignment, and Troubleshooting Using Tape Reader, Part No. 877406-2 –
Continued
Malfunction
Test procedure
Normal indication
indication/corrective action
MOVE IMU TO X DEGREES
PITCH X DEGREES ROLL
WHEN DONE TYPE: RDY
ALIGNMENT HALTED
Obtain the desired pitch and roll
angles by placing blocks under the
primary pallet frame. Make sure the
system cannot rock on the blocks.
Level porro prism
2q. Repeat steps 2m thru 2p for the
following pitch and roll angles:
PITCH ROLL RAISE
Do not move or disturb primary pal-
let after last position is reached.
Make snre pallet is firmly blocked in
level position.
2r. Enter geodetic (true) azimuth of
target
in
roils
in format
XXXX.XX RDY
After data for last position
TTY prints out:
ENTER TAZ (MIL) RDY
ALIGNMENT HALTED
TTY prints out:
RDY
Alignment continues
entered,
TTY prints out:
TAZ OR IMU HEADING INCOR-
RECT
MOVE TO APPROX 45 DEG HDG
Change 1 4-90.9