John Deere POWERTECH 4045 - Manual (Page 127)

Engine Operation- 4.5 L “270” Engines
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Stopping the Engine
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Key Switch on Instrument Panel (Earlier Engines)
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Key Switch on Instrument Panel (Later Engines)
IMPORTANT: Stopping the engine immediately when
it has been working under load, can
result in overheating and accelerated
wear of the engine components.
ALWAYS run the engine at slow idle
and no load to allow hot engine parts to
cool before shutdown (if possible).
On engines with variable speed
governors, remove load from engine
and run engine for at least 2 minutes
Run turbocharged engines for 3 to 5
minutes.
On generator set engines with
governors locked at a specific speed,
remove electrical load from engine (if
possible) and run at fast idle and no
load for at least 2 minutes.
1. Reduce engine speed to slow idle (variable speed
governors only).
2. Turn key switch (A) to "OFF" position to stop the
engine. After engine stops, close valve on fuel supply
to prevent accidental starting.
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Exhaust Stack Rain Cap
IMPORTANT: Make sure that exhaust stack cap (rain
cap) is in place when engine is not
running. This will prevent water and dirt
from entering engine.
3. Fill fuel tank to minimize possible water condensation
problems. Filling tanks at end of day drives out
moisture-laden air.
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