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 TB 740-97-4
CHAPTER 5
DEPRESERVATION INSTRUCTIONS
133. General. Depreservation of vessels includes any necessary removal of barrier-materials, sealing materials, desiccant, blanks,
plugs and caps, dehumidification systems, sensing elements, shelters and ventilators. Also included are connection of all
disconnected piping, insertion of drain plugs, installation of packings, reassembly of disassembled items, and closure of openings
made for purpose of preservation.
134. Preservation and Depreservation Guide. A Preservation and Depreservation Guide for Marine Equipment (DA Form 3256)
will be prepared in duplicate for each vessel at the time of preservation. One copy will be placed in a waterproof envelope marked
"Preservation and Depreservation Guide" and securely attached in a conspicuous and protected location in the pilothouse. One copy
will be placed in the vessel record file.
NOTE
The preservation and depreservation guide will be annotated to reflect the type and grade of lubricants specified
herein.
135. Tagging. Warning and instruction tags will be used as a supplement to, but not as a substitute for, depreservation instructions.
Tags will be attached to items or systems in conspicuous locations to draw attention to the need for any depreservation operation
likely to be overlooked which would endanger personnel or equipment.
136. Removal of Preservatives. Removal of P-type preservatives, except P-14 when required, will be accomplished by use of
solvent conforming to MIL-S-18718 or FED-TT-T-291, grade 1. Removal of P-14 preservative will be accomplished by use of soap
and water, or with scouring powder, detergent, or other cleaner approved for galley use.
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