TM 55-6610-247-40
SECTION I
INTRODUCTION
two-piece construction to insure an airtight seal. The
1-1. General Information.
mounting flange is equipped with self-locking nuts to
This manual comprises overhaul instructions for
facilitate mounting. An adjusting knob is located at the
sensitive altimeters, (figure 1-1), manufactured by
lower left corner of the case. A fitting at the rear of the
Kollsman Instrument Corporation (89944), Syosset New
case provides for connection to the aircraft static
York. Sections I through IV of this technical manual
pressure system.
contain instructions for part numbers 671CPX4-037
(2) Part numbers 671CPX4-037, 671CPU19-015,
671CPX4-037D, 671CPX4-037DF, 671CPU19- 015,
and 671CLU4-035 are basic instruments and are
671CPUI9-01D,
671CPU19-015DF,
671CLU4-035,
identical with each other with the exception of different
671CLU4-035D and 671CLU4- 035DF.
Overhaul
parts as listed in the illustrated parts breakdown.
instructions for part numbers 1845X4-03, 1845X4-03D
(3) Part numbers 671CPX4-037D, 671CPU19-
and 1845X4-03DF are provided in section V by the use
015D, and 671CLU4-035D are instruments which have
of difference data sheets.
been modified as required by paragraph 2-5, and have
a. Equipment Records. The Army maintenance
been adjusted for 35,000 feet instead of 60,000 feet.
management system and procedures established in DA
(4) Part numbers 671CPX4-037DF, 671CPU19-
PAM 738-751 apply to this equipment. The applicable
015DF, and 671CLU4-035DF are the final configuration
forms as required by DA PAM 738-751 shall be used.
and overhaul in accordance with the instructions in this
b. Reporting of Errors. The direct reporting of
manual and adjustment to the tolerances as required, will
errors, omissions, and recommendations for improving
automatically change the instrument from a basic, or a D,
this manual by the individual user is authorized and
to a DF configuration.
encouraged.
Use DA Form 2028 Recommended
changes to DA Publication) and forward it directly to the
Commanding General, US Army Aviation Systems
Command, ATTN: AMSAV-MPSD, 4300 Goodfellow
Blvd., St. Louis, Missouri, 63120-1798.
c.
Quality Control Personnel.
Quality control
personnel shall insure complete compliance with quality
program and / or inspection system requirements
specified in the contract and this manual. Any deviations
from the established requirements shall be approved by
the contracting officer or his designated representative.
d. Purpose of Equipment. The sensitive altimeter is
for use on aircraft to indicate altitude of the aircraft above
some reference point (generally sea level), assuming
standard conditions of temperature and pressure. The
sensitive altimeter measures existing ambient pressure.
Since atmospheric pressure varies with altitude, this
pressure is indicated on the dial in feet of altitude.
1-2. Description and Leading Particulars.
a. Description. Description of the sensitive altimeter
is as follows:
(1) The sensitive altimeter case is of
Figure 1-1. Sensitive Altimeter, Type
6 71 CPX4-03 7DF.
b. Leading Particulars. Leading particulars for
the sensitive altimeter are found in table 1-1:
Change 6 1-1
