| Tweet |
Custom Search
|
|
|
||
 TB 55-1900-231-15
F. The teams required to activate and test HLPS watercraft are listed in paragraph 4 of this Chapter. This
concept will provide for the availability of 3552 manhours in a 48 hour period. These manhours include 48
manhours for supervision and 1008 hours for relief of crews as required. For SSB watercraft this concept
will provide for the availability of 1620 manhours in a 48 hour period. This includes 48 manhours for
supervision and 480 manhours relief crews.
G. As stated in paragraph I B(5) above, the compliment of starting batteries that are installed in battery trays
on each watercraft are in a dry charged state and shall be used for activation. Insure that vent caps on the
batteries are open. Four (4) each 105-125VAC/6VDC battery chargers are stored on the HLPS vessel and
two (2) on each SSB, one for each ROWPU. On completion of represervation, the wet charged batteries
will be removed from the watercraft for disposal and replaced with new starting batteries.
2. Depreservation: The preservation storage of all craft is such that little is required and consist of opening the
vessel by removing the sealing, dehumidification ducting, flex hoses, sensing elements, humidistats, and
plywood blanks, etc. This can be accomplished concurrently with the preliminary activation. It is anticipated that
most of the depreservation would be accomplished prior to float off/launching of the craft. The following order of
removal/depreservation is recommended.
A. Remove dehumidification disconnect and remove dry and humid air PVC piping from host (HLPS) ship.
Remove exterior PVC piping from the craft. ROWPU barges are equipped with two (2) dehumidification
machines located in the ro-ro compartment. See Appendix E.
B. Open up and air out craft Remove tape and plywood blanks, open doors, port lights, scuttles, and hatches
as deemed appropriate under the prevailing climactic conditions. Remove the internal flex hose/ducting,
humidistats and sensing elements. Reinstall port lights, doors, and/or whatever may have been removed
for the introduction and circulation of dehumidified air.
3. Activation: As stated in I.B(3) above, the machinery, electrical equipments, and systems are in a ready for
service status. However, there are certain preliminary requirements that must be accomplished prior to
activation and testing that cannot commence until the craft are waterborne. The following order of activation is
recommended.
A. For total activation, activate the batteries by filling the electrolyte that is stored in proximity thereof, except
in the LCU 1466A class, the electrolyte is stored in the crews quarters. Let batteries stand for
approximately one (1) hour, then connect cables and batteries are ready for service.
CAUTION
Electrolyte is a mixture of sulfuric acid and water, that is highly corrosive, and will cause severe
burns if allowed to come in contact with the skin and/or eyes, and is destructive to clothing.
Extreme caution shall be exercised in handling the electrolyte. As a minimum, personnel shall
wear rubber gloves and a face shield. Prior to commencement of battery activation, ensure the
space is open and well ventilated. No open flame or smoking is permitted in the space during
the process. During activation, batteries give off hydrogen gas which is highly explosive.
B. Load and sanitize/chlorinate potable water in tanks. The potable water tanks were left clean and dry at
preservation and should require nothing more than filling and chlorination to a potable level of 0.2 ppm.
The procedure to be used is listed in TB 43-0153 which is on board each watercraft having potable water
tanks.
CAUTION
Personnel handling chlorine shall wear rubber gloves and face shield to prevent skin and eye
contact. Any contact of chlorine on the skin will be washed off immediately with fresh water.
Any contact of chlorine in the eyes will be flushed out immediately with fresh water and
examined by a medical doctor as soon as possible.
38 Change 1
|
||
|
||
