CUMMINS N14 Specifications download pdf (Page 444)

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101

General Run-In Procedures

Caution: Refer to General Engine Test Specifications

before operating the engine to avoid internal component

damage.

Caution: The lubricating oil system must be pressurized

before operating the engine to avoid internal component

damage.

NOTE: The amount of time specified for the following engine

run-in phases are minimums.

The engine can be operated for longer periods of time at

each operating range or phase with the exception of

engine idling which must be kept to 10 minutes or less.

Start the engine and idle for initial check.

NOTE: Avoid long idle periods. Operate the engine at low

idle only long enough (10 minutes maximum) to check for

correct oil pressure and any fuel, oil, water, or air leaks.

NOTE: Do not operate the engine at idle speed longer than

specified during engine run-in. Excessive carbon formation

will occur and cause damage to the engine.

NOTE: To avoid internal component damage, do not allow

the engine speed to exceed 1,000 RPM before run-in.

While the engine is idling, listen for unusual noises; watch

for coolant, fuel, and lubricating oil leaks; and check for

correct engine operation in general.

NOTE: Repair all leaks or component problems before con-

tinuing the engine run-in.

General Run-In Procedures Engine Testing

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CUMMINS N14 Specifications Page 444

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