TM 55-4920-244-14
INTRODUCTION
Section I. GENERAL
Publications, and forwarded direct to Commander, U.S.
1. SCOPE.
Army Aviation Systems Command, Attn: AMSAV-
MMD, 4300 Goodfellow Blvd., St. Louis, Missouri
a. General. These instructions are published for the
use of personnel who operate the exhaust gas
63120-1798.
temperature tester, part number BH112JA-36, and for
personnel responsible for organizational, direct support,
and general support of the tester. The instructions pro-
The following record and report forms are used by the
vide information on the description, operation,
operator and maintenance personnel for recording and
maintenance, shipment, storage, and demolition of the
reporting operations and maintenance activities. For in-
tester.
structions as to the use of listed forms, refer to DA
PAM 738-751.
b. Appendix A. Appendix A provides a standard list
of all publications applicable to this manual and available
a. DA Form 2402, Exchange Tag
to the operator and maintenance personnel.
b. DA Form 2404, Equipment Inspection and Main-
tenance Worksheet
c. Appendix B. Appendix B contains the Maintenance
Allocation Chart. The chart assigns to the lowest ap-
c. DA Form 2405, Maintenance Request Register
propriate echelon the maintenance functions and repair
operations to be performed.
d. DA Form 2406, Material Readiness Report
d. Appendix C. Appendix C contains Repair Parts and
e. DA Form 2407, Maintenance Request
Special Tools.
f. DA Form 2409, Equipment Maintenance Log
e. Recommendations. Report of errors, omissions, and
(Consolidated)
recommendations for improving this publication by the
g. DD Form 314, Preventive Maintenance Schedule
individual user is encouraged. Reports should be submit-
ted on DA Form 2028, Recommended Changes to
and Record
Section II. DESCRIPTION AND DATA
1-3. DESCRIPTION.
to 400 Hertz, ac power source in temperatures ranging
from -54 to +71 Celsius (-65 to + 160 Fahrenheit).
The exhaust gas temperature tester (fig l-l) is used to
1-4. IDENTIFICATION.
determine the accuracy of the aircraft exhaust gas
a. Nameplate. The tester nameplate is located on the
temperature (egt) system without running the engine
outside of the probe storage compartment between the
and to read engine rpm and egt accurately during engine
latches. The nameplate identifies the tester by name,
run. The major components of the tester are the exhaust
manufacturer's part number and serial number, and
gas temperature indicator; resistance, insulation, and
Federal Stock Number.
rpm check circuit; potentiometer; voltage regulator
meters; switches; and the the necessary probes, cables,
b. Instruction Plate. The instruction plate is mounted
and adapters for performing all tests. Storage is pro-
on the bottom of the probe storage compartment, and
vided within the tester for all probes, cables, and
gives the step-by-step operating instructions for the
adapters. The tester operates on any 95 to 135 volts, 50
tester.
