4-87. PREPARATION FOR SHIPMENT (Con't),
SHIP AND RAIL MOVEMENT.
Explosive vapor level measurements must be taken at specified intervals
prior to semitrailer ship and rail movement. Failure to follow this procedure
may result in serious injury or death to personnel.
After semitrailer has been purged, explosive vapor level measurements must be
taken by trained personnel and must be LESS than 20% lower explosive level (LEL),
This measurement is to be taken every 12 hours after purging, until semitrailer is
shipped. One-half hour prior to loading, a reading MUST be taken. Tank must be
repurged if vapor levels reach 20% of the LEL.
Prior to shipping by ship or rail, semitrailer must be placed in a covered and ventilated
area with manholes open.
Hazardous cargo certification must be provided in accordance with TM 38-250
(AFR 71-4). Certification of this hazardous material shall be accomplished on
DD Form 1387-2 by the qualified specialist or technician who actually prepared and
inspected the semitrailer for shipment.
Loading, blocking, tie-down, and bracing on railcars will be accomplished with techni-
cal guidance from the Installation Transportation Officer (ITO) and in accordance with
the Association of American Railroad (AAR) published Rules Governing the Loading of
Department of Defense Material on Open-Top Cars.
The Installation Transportation Officer is responsible for initial coordination with the
Port of Embarkation (POE) to determine special requirements and for providing the
shipper with port of call information.
The Installation Transportation Officer must coordinate with unit personnel for any spe-
cial equipment preparation or markings required by the POE.
4-88. LOADING AND MOVEMENT.
The M1062 Tank Semitrailer has not been designed for air transportability.
Any attempt to transport the semitrailer by air may result in an accident,
causing damage to semitrailer or serious injury or death to personnel.
a. After semitrailer is loaded, ensure that both air reservoirs are empty by pulling on draincock
Ensure that both air couplings are protected by dummy couplings (see paragraph 1-7, Front