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 TM 55-1925-204-12
Table 3-1. Operator/Crew Preventive Maintenance Checks and Services - Continued
Tug Diesel Large Design 3006
B - Before
A - After
M - Monthly
D - During
B/A - Biannually
Q - Quarterly
Intervals
Item
Item To Be
Procedure
Equipment Will Be Reported
No.
BDA
M Q B/A
Inspected
Not ready/Available If:
14
Tank vents
Ensure vents pipes are free from
Vent tube is rup-
corrosion/deterioration. Check
tured/sheared allowing
flame arrestor screen for rust and
S.W. into fuel tank en-
paint. Ensure ball check valves
dangering vessel and
operate correctly - ball free.
crew. Rubber ball is miss-
ing from check valve.
15
Vertical ladders,
Inspect preventer bars for frac-
scupper drains,
tures, check drain pipes for inter-
bulwark, freeing
nal corrosion. Check ladder
ports.
securements and hand rail for
deterioration/corrosion. Ensure
non-skid is applied to ladder
steps.
16
Life raft, life rings,
Inspect for damage to life raft and
Life raft is damaged/
light marker, rail
hydrostatic release. Ensure life
nonoperational.
and mounting
ring marker lights are operative.
brackets.
Ensure hull number/name of
vessel is marked on life ring.
Check brackets for damage,
deterioration and ease of
removal. Check life ring buoy for
sufficient life line.
Life jackets and life
Inspect life jackets for hull
Life jackets are missing,
17
jacket stowage
number, bears missing straps, oil
damaged/deteriorated.
locker.
paint soaks and deterioration.
Life jacket lock will not
Check life jacket locker for mark-
float free/cannot be
ing and deterioration. Ensure
removed upon submerg-
l
locker cover floats free upon
ing.
submerging locker.
18
Cargo lights
Ensure cargo lights are opera-
Cargo lights are in-
tional, check for damaged plug
operative.
and frayed wiring. Ensure lenses
are intact and lights can be
elevated for work on fan tail/lazy
boy area.
19
Stack house
Check the exhaust uptakes for
Uptakes are leaking ex-
condition and mounting. Check
haust fumes creating a
for carbon streaks and other in-
carbon monoxide safety
dications of exhaust leaks.
hazard to crew, and
Tighten the mounting bolts and
operating personnel..
connections. Ensure manifolds
and gaskets are in good condition,
secure and not leaking. Check in-
sulation (main engine and both
Change 1
3-5
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