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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:
57
Lazaretted freezers
Start freezer units and observe
No refrigeration available
and galley chill box
bullseye for short charge. Check
for onboard foods.
drive belts for wear, and replace
as one unit. If bubbles are present
in unit bullseye, test unit with halide
torch for leaks. Repair leaks, and
recharge unit. Check operating
pressures with charging manifold for
proper operation. Ensure TXV is
feeding properly. Check seal on
boxes for wear and deterioration.
Ensure box temperatures are lowering
with unit running-hourly check.
Ensure thermometers are in
freezers, and chill box to indicate
operating temperature. Chill box:
o
o
+36- + 42 F. Freezer: 0 to -10 F.
58
Drinking water
Check water temperature Freon-12
fountain
charge and compressor operation.
59
Galley range
Check galley fuel oil day tank for
adequate oil supply. Open stop
valve, and set oil throttle valve to
fire box. Check fire box for oil
presence. Start fire in fire box
with paper. Cut in blower motor
and monitor combustion.
Regulate fire at desired temperature.
Check range, occasionally for proper
operation and overfeeding of oil supply.
Sanitizing sink
Check for proper operatiori and
Sink heater, galley range
60
heater
correct temperature (180-190 ).
F
and the ships boiler are in-
Ensure sink is filled with water
operative.
prior to energizing the heating
element.
61
Battle lantern
Ensure battle lanterns are in good
repair and functional. Check
lantern by dropping electrical load,
and observe lantern for emergency light.
Change 1
3-8.13
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