TM-9-2350-358-BD
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A6
TECHNICAL MANUAL; OPERATOR’S, UNIT, AND DIRECT SUPPORT SUPPORT MAINTENANCE
MARCH 1994
TM-9-2350-358-BD - Page 2 of 343
TM 9-2350-358-BD
WARNING
This technical manual contains nonstandard maintenance procedures.
All normal safety procedures should be observed
when the tactical situation permits.
Extra care will be taken when the tactical situation requires performing maintenance
with ammunition up-loaded and when fuels and lubricants are spilled in hull and cab.
WARNING
RADIOACTIVE MATERIAL(S)
TRITIUM (HYDROGEN-3) GAS
Handle with care in the event the radioluminous source is broken, cracked or there is no illumination, immediately wrap
device in plastic bag (item 3, Appendix C) and notify the local Radiation Protection Officer (RPO).
Contact the base safety
office for the name and telephone number of your local RPO.
LOCAL RPO ___________________________
TELEPHONE. _________________________________
SAFETY PROCEDURES FOR NUCLEAR REGULATORY COMMISSION
(NRC) TRITIUM FIRE CONTROL DEVICES
1.
Purpose
: To implement mandatory license requirements for use and maintenance of tritium radioluminous
fire control devices used on howitzers, mortars, tanks, and rifles.
2.
Scope
: This procedure is applicable to all personnel working with tritium devices, including unit, direct
support, general support maintenance, and operator’s levels.
3.
Radiological hazard
: The beta radiation emitted by tritium presents no external radiation hazard.
However,
if taken internally, it can damage soft tissue.
If a capsule is broken, the tritium gas will dissipate into the
surrounding air and surfaces near the vicinity of the break may become contaminated.
Tritium can be taken
into the body by inhalation, ingestion, or percutaneous (skin) absorption/injection.
4.
Safety precautions
.
a.
Check for illumination prior to use or service in low light or darkroom.
If not illuminated, do not repair .
Wrap the entire device in plastic bag (item 3, Appendix C) and notify the local RPO.
b.
No eating, drinking, or smoking will be allowed in tritium device work areas.
5.
Emergency procedures
: If a tritium source breaks, inform other personnel to vacate the area or move
upwind.
If skin contact is made with any area contaminated with tritium, wash immediately with
a
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