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 TM 55-1905-223-24-1
Table 2-1. Preventive Maintenance Checks and Services
D-Daily
Q-Quarterly
A-Annually
B-Biennially
Item
Intervals
Items To Be
No.
DQAB
Inspected/Serviced
Procedures
5
*
Exhaust System
Check exhaust manifold for exhaust leaks, water leaks, and corrosion. Check insulation
blankets (turbocharger also) to make sure that all hot surfaces are properly covered to
prevent any possibility of oil spraying on the hot surfaces.
*
Fuel, Lube and
Make sure there are no signs of abrasion. Make sure all hoses are properly connected.
Coolant Hoses
Make sure there is no seepage or leaks of hoses or fittings. Make sure cla ps are
m
tightened properly.
NOTE
Inspect under operating conditions with engine running. No twisting or bending force
should be applied during inspection, since flexible hose may "take a set" after being
in service.
*
Fuel Pump
Check for misadjustment, evidence of tampering, and leakage.
6
*
Lube Oil (or at
Change lube oil. The engine is provided with a manually operated sump pump located
every 250
at the right rear of the engine, mounted to the flywheel housing The output side of the
.
operating hours)
pump is connected to the "Dirty Lube Oil" tank. To change oil, proceed as follows.
Bring engine to operating temperature (175 to 195, then shut down. Wait 15 minutes,
)
then open the valve between the engine sump and sump pump. Be sure the valve to the
marine gear is closed. Turn the handle until all oil has been pumped from the oil pan. Close
valve when all oil has been removed. Fill the crankcase to the "H" mark on the dipstick or
on the sight gauge. Start engine and check for leaks. Shut down engine; allow 15 minutes
for oil to drain back into pan; recheck oil level. Add oil as required.
I
2-9
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