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 TM 55-1905-219-14-10
5-4. MAIN PROPULSION ENGINE/MARINE GEAR - REMOVAL AND RUN-IN
MAINTENANCE INSTRUCTIONS. (Continued).
LOCATION
ITEM
ACTION
REMARKS
RUN IN (Cont)
15
Refer to the Basic Run-In Horsepower Schedule and deter- mine the
maximum rated brake horsepower and the full-load speed to be used during
the Final Run-In. Apply the load thus determined to the dynamometer. If a
hydraulic governor is used, the droop may be adjusted at this time by
following the prescribed procedure. The engine should be run at this speed
and load for 1/2 hour. While making the Final Run-In, the engine should
develop, within 5%, the maximum rated brake horsepower indicated for the
speed at which it is operating. If this brake horsepower is not developed, the
cause should be determined and corrections made.
16
When the above conditions have been met, adjust the maximum no-load
speed to conform with that specified for the particular engine. This speed
may be either higher or lower than the maximum speed used during the
Basic Run-In. This will ordinarily require a governor adjust- ment .
17
All information required in Section "E", Final Run-In, of the Engine Test
Report should be determined and filled in. After the prescribed time for the
Final Run-In has elapsed, remove the load from the dynamometer and
reduce the engine speed gradually to idle speed and then stop the engine.
The Final Run-In is complete.
(f) Inspection After Final Run-In.
After the Final Run-In and before the Engine Test Report is completed, a final inspection must be made.
This inspection will provide final assurance that the engine is in proper working order. During this inspection,
the engine is also made ready for any brief delay in delivery or installation which may occur. This is
accomplished by rust-proofing the fuel system. Also, a rust inhibitor should be introduced into the cooling
system.
5-34
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