Normal engine operation (Cummins)
Observe
volt meter water temperature and oil
pressure
gages trequently to be sure all engine
systems are functioning properly.
Be alert for unusual noises or vibration.
When
an unusual condition is noticed stop in a safe area
and shut off engine. Determine cause and correct
before continuing.
Early recognition and correction of unusual con-
ditions can often prevent a major breakdown.
Apply load to engine gradually;
shock loads are
hard on all drive line components.
When using engine braking power (downshifting
or releasing acclerator and permitting carrier to
“push” engine) to slow travel take care to
avoid
overspeeding the engine
(exeeding governed
RPM - 22 00 RPM). The governor has no control over
engine speed when engine is being “pushed” by
carrier load.
Select an appropriate gear ratio and use service
brake to assist in slowing travel down steep grades.
Permitting the engine to labor under too great a
load for the gear ratio being used (lugging the
engine) will shorten engine life.
Shift to the proper
gear ratio for conditions.
Avoid prolonged idling.
Idling causes engine tem-
perature to drop and this permits formation of
heavy carbon deposits and dilution of lubricating oil
by incompletely burned fuel. If the engine is not
being used turn it off.
Do not “gun” engine before shut down;
this
practice causes raw fuel to remove oil film from
cylinder walls and dilute lubricant in crankcase.
Stop engine by turning ignition switch to “OFF”
position.
W A R N I N G
Do not operate carrier engine when
operating upperstructure.
Stopping the engine (Cummins)
Operate engine at idle speed for a few minutes
before turning it off.
This allows engine coolant and
lubricating oil to carry excessive heat away from
critical engine areas.
This is especially important
for turbocharged engines.
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