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 TB 55-1900-231-15
D. Humid air will be removed from the machinery house through lengths of 4" flexible hose routed to
pickup air aft of the boom hoist drum and connected to the stbd. machinery door blank's pipe coupling
and nipple with a hose clamp.
E. The humid air from the machinery house will beudted through 4' PVC pipe supplied to the living
c
quarters and storeroom through a blank fitted with two each 4 inch pipe couplings and installed over the
stbd. outboard porthole above the refrigerator. The pickup from the fwd. end of the port living
quarters storeroom will be ducted to the blank over the after CHT room scuttle. The pickup from the
stbd. side fwd. end of the CHT room, in turn will be ducted to the stbd. outboard center porthole on
the engineroom deckhouse.
F. Unbolt and remove the tbd. outboard center porthole on the engineroom deckhouse. Stow porthole in
s
the engineroom. Tag and bag bolts and nuts and attach to porthole. Install a circular wooden blank
over this opening fitted with two (2) each 4 inch PVC pipe couplings, located top and bottom, and with
strips of 1/8 inch neoprene rubber glued to the wood to provide a flexible seal between the wood and
the mounting surface. Drill holes as required in the blank so that it can be secured with a minimum of
four (4) bolts, nuts, and flat washers through the existing porthole bolt holes.
G. The blank over the living quarters deckhouse porthole will also be fitted with two (2) each 4 inch PVC
pipe couplings located vertically. The blank will be installed flush with deckhouse bulkhead, inside the
porthole coaming. Remove and stow porthole screen in galley. Any gaps will be packed with duct seal
and sealed with pressure sensitive tape and glue.
V. MANHOUR REQUIREMENTS:The following listing contains the estimated skills, man-hours, and costs
required to accomplish those tasks and procedures as set forth in Chapter III, Storage Requirements,
Section 3, Preservation (General), Section 4, Specific Preservation Requirements, and this Appendix.
SKILL
QTY
M/Hrs.
TOTAL M/Hrs.
Mechanic/Processor
2
175
350
Processor
2
175
350
Processor Helper
1
175
175
Support/Quality
1
75
75
Assurance
M/Hrs Per Watercraft
950
X2
Qty. for 2 Watercraft
1,900 M/Hrs.
H. The blank over the CHT room's after scuttle will be equipped with two e2)ch 4 inch PVC pipe
(a
couplings, a simple quick-acting dogging device or strongback securing device, and strips of 1/8 inch
neoprene rubber glued to the wood to provide a flexible seal between the wood and the scuttle's knife
edge.
I.
Sensing Elements: Four(4) sensing elements will be installed within three (3) feet of the pickups in the
machinery house, port living quarters storeroom, CHT room, and port engineroom.
J. Humidistat: A single humidistat will be installed within three (3) feet of the pickup the port
in
engineroom. The humidistat will be set to maintain 40 percent (plus or minus 5 percent) relative
humidity.
K. Stencil the blanks or the adjacent surface near the blanks on the machinery house and engineroom
deckhouse with "DRY AIR" and "HUMID AIR" for the benefit of those who will connect the D/H systems.
D-4
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