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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)
3
A preliminary valve clearance adjustment must be made
before the engine is started.
4
A preliminary injector timing check must be made before
starting the engine.
5
Preliminary governor adjustments must be made.
6
Preliminary injector rack adjustment must be made.
(b)
Basic Engine Run-In
1
The operator should be observant at all times, so that any malfunction which
may develop wll1 be detected. Since the engine has just been reconditioned, this
run-in will be a test of the workmanship of the service- man who performed the
overhaul. Minor difficulties should be detected and corrected so that a major
problem will not develop.
2
After performing the preliminary steps, be sure all water valves, fuel valves,
etc. are open. Also inspect the exhaust system, being sure that it is properly
connected to the engine. Always start the engine with minimum dynamometer resi
stance.
3
After the engine starts, if using a water brake type dynamometer, allow
sufficient water, by means of the control loading valves, into the dynamometer
absorption unit to show a reading of approximately 5 lb-ft on the torque gage (or
10-15 HP on a horsepower gage). This is necessary, on some units, to lubricate
the absorption unit seals and to protect them from damage.
4
Set the engine throttle at idle speed, check the lubricating oil pressure and
check all connections to be sure there are no leaks.
5-29
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