TM 9-1290-357-15
INTRODUCTION
Section I. GENERAL
accordance with the requirements of FM 5-25.
1-1. Scope
a. These instructions are for use by operator,
crew, organization, direct support, general sup-
a. Authorized Forms. Department of the Army
port and depot maintenance personnel. They apply
forms and procedures used for equipment main-
to the aiming circle M1, w/e (1190-671-6145).
tenance will be those prescribed by TM 38-750.
ferences, including supply and technical manuals,
b. Recommendations for Maintenance Manual
forms and other publications applicable to the
Improvements. The reporting of errors, omissions,
aiming circle, M1, w/e.
and recommendations for improving this publica-
tion by the individual user is encouraged. Reports
should be submitted on DA Form 2028 (Recom-
items, repair parts list, and special tools that are
mended Changes to DA Publications) and for-
required for use by operator, organizational,
warded direct to Commanding Officer, Frankford
direct support, general support and depot main-
Arsenal, ATTN: AMSWESMFW3100, Phila-
tenance.
delphia, Pa. 19137.
c. Report of Accidents. The necessary reports
location chart.
are prescribed in AR 38540.
e. The procedures for administrative storage
d. Equipment Improvement Recommendations.
of equipment is contained in chapter 7. A portion
Use the Equipment Improvement Recommenda-
of these procedures are in accordance with the
tion section of DA Form 2407.
requirements of TM 74090-1.
e. Materiel Failure Report. Failure of mat-
f. The procedures for destruction of Army
eriel will be reported in accordance with TM
materiel to prevent enemy use is contained in
38-750.
Section Il. DESCRIPTION AND DATA
point, without changing azimuth scale settings.
1-3. Description
tripod mounted, optical instrument used to orient
Mechanism
artillery and infantry weapons by measuring any
horizontal angle and limited vertical angles of
a. Telescope assembly. The telescope assembly
targets with respect to reference points.
is a low power optical instrument with an ad-
justable focusing sleeve for clear definition (figs.
consists basically of a telescope, elevation and
system is a vertically and laterally graduated
azimuth orienting mechanisms, and magnetic
reticle used for direct observation of small angles
needle assembly. The clamping screw and orient-
ing mechanism knob are used to position the in-
in elevation and azimuth, and for accurate sight-
strument on the tripod with respect to a reference
ing on an object as required in the determination
