TEST - TM-5-2410-237-230350

TM 5-2410-237-23

CYLINDER CUTOUT TEST - CONTINUED

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TEST

WARNING

DO NOT perform fuel system checks, inspections or maintenance while smoking or near fire, flames or

sparks. Fuel may ignite, causing damage to machine and injury or death to personnel or equipment

damage.

Eye protection must be worn when performing this test procedure. Failure to take precautions could

cause injury to personnel.

CAUTION

Use caution to ensure fuel system does not become contaminated. Keep work area clean. Contamina-

tion of fuel system could result in premature failure.

Utilize line wrenches for removal of injector lines to avoid damage to fittings and connectors.

NOTE

Use a suitable container to catch any fuel that may drain from system. Dispose of fuel IAW local policy

and ordinances. Ensure all spills are cleaned up.

This on-vehicle test can be performed to find cylinder that is misfiring and causing erratic engine idle

and black exhaust smoke.

While running engine at an RPM that makes symptom most evident, loosen fuel line nut at a fuel injection nozzle. This

will stop flow of fuel to that cylinder.

Listen for a change in engine idle speed or for idle to become more erratic.

a. If change occurs, tighten fuel line and go to step 3.

b. If no change occurs, this cylinder is misfiring.

Repeat step 1-2 for each injector to be tested.

Record results of test and return to troubleshooting, if required (WP 0006 00).

END OF WORK PACKAGE

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