TB 55-1905-202-34/1
of heading indicator reading.
d. Aline landing craft to 000 degree heading and
record reading of heading indicator.
k. Repeat steps g through j as required to optimize
adjustment.
e. Remove all magnetic material from person who
is to be adjusting transmitter case. Loosen 3 nuts
l. Aline landing craft to 000 degree heading and
securing transmitter case to mast support, figure 6.
adjust 0 degree adjustment screw at rear of heading
Rotate transmitter case so that new heading on heading
indicator to obtain 000 degree reading on heading
indicator is equal to heading recorded in step d, minus
indicator.
the index error (magnitude and sign) calculated in step
m. Aline landing craft to 180 degree heading and
c.
adjust 0 degree adjustment screw to remove onehalf
error of heading indicator reading.
insuring that position of transmitter does not change.
n. Aline landing craft to 045 degree heading and
g. With the landing craft still aligned to 000
adjust 45 degree adjustment screw at rear of heading
degrees, adjust N-S adjustment screw to obtain 000
indicator obtain 045 degree reading on heading
degree reading on heading indicator.
indicator.
h. Aline landing craft to 090 degree heading and
o. Aline landing craft to 225 degree heading and
adjust E-W adjustment screw to obtain 090 degree
adjust 45 degree adjustment screw to remove onehalf
reading on heading indicator.
error of heading indicator reading.
i. Aline landing craft to 180 degree heading and
p. Repeat steps I through o as required to optimize
adjust N-S adjustment screw to remove one-half error
adjustment.
Section IV. OPERATION
19. Operation
18. Inspection
To engage the RMHS, set compass and well light switch
The RMHS indicator repeater is electrically operated
to the ON position, and set switch to the compass
from the LCM-8, 24 volt, DC battery system. Inspect
position.
the heading indicator and the transmission case for
evidence of damage. Inspect all interconnect cables
NOTE
and terminals for breakage, wear and tightness.
Keep compass switch in the OFF
position when the RMHS is not in use.
By Order of the Secretary of the Army:
CREIGHTON W. ABRAMS
General, United States Army
Chief of Staff
Official:
VERNE L. BOWERS
Major General, United States Army
The Adjutant General
Distribution:
To be distributedin accordance with DA Form 12-25D (qty qrq block No. 815) Direct and General Support
Maintenance requirements for Marine Equipment: All.
U.S. GOVERNMENT PRINTING OFFICE: 194 - 342421/.207S
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