MIL-DTL-62483A(AT)
4.2.5.2 Oil filters. Verify that oil filters are part of the engine configuration and that they
are readily accessible for hot oil draining, and filters can be easily removed and replaced.
4.2.5.3 Oil filler and gage. Verify that the oil filler opening is in such a position that oil
can be poured into the filler without the use of a funnel. Remove the waterproof type bayonet
gage oil dipstick and verify that the oil level is in the safe operating zone as identified on the
dipstick.
4.2.5.4 Fuel-water separator and fuel filters. Verify by visual inspection that the fuel-
water separator and the fuel filters operate and there is no evidence of leakage.
4.2.5.5 Engine data plate. Verify that the engine data plate is installed on the engine
block in a location that will be readily visible to personnel performing maintenance when the
engine is installed in a vehicle.
4.2.5.6 Leakage. During all testing the engine assembly shall be closely monitored for
evidence of leakage. Any leakage great enough to form drops (class III) as defined in 6.6 shall be
cause for rejection.
4.2.6 Operating environment requirements verification.
4.2.6.1 Environmental requirements. With the engine mounted on a dynamometer as
specified in 4.2.3.2, the engine shall be started and operated for 15 minutes under the following
conditions:
a. Temperature conditions. With integral cold starting aids only after being
cold-soaked for 24-hour period without benefit of solar-radiation, to an ambient
temperature of -25°F (-32°C).
b. Elevation conditions. At any elevation from sea level to 8000 ft (2438 m) as
specified in table III, the engine shall have adequate torque and power
characteristics to meet the performance requirements specified herein.
c. Humidity conditions. Under relative humidity conditions as low as 5% at
temperature of 120°F (49 °C) and as high as 100% at all temperatures from
-25° to 85°F (-32° to 29°C).
4.2.6.2 Limiting operating temperatures. Monitor the engine oil and coolant
temperatures to verify that they do not exceed the operational limits.
4.2.6.3 Steam and water jet cleaning. The engine assembly shall be steam and water jet
cleaned as follows: The jet is applied perpendicular to the surface being cleaned at a distance of
not more than 1 ft (0.305 m) from the surface for steam cleaning, and not more than 5 ft (1.53 m)
from the surface for water jet cleaning, and cleaned at a rate of one square foot per minute
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