Symptom Tree t077
Cause | Correction |
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Air pressure is low in the air tanks |
Increase air pressure with an external air source. Refer to the OEM service manual. |
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Engine-driven units are engaged |
Disengage engine-driven units. |
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Lubricating oil temperature is below specificationthe OEM service manual |
Install an oil pan heater, or drain the oil and fill the system with warm oil. |
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Lubricating oil does not meet specifications for operating conditions |
Change the oil and filters. Refer to Procedure |
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Crankshaft rotation is impaired |
Check the crankshaft for ease of rotation. Refer to Procedure |
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Starting motor is malfunctioning or starting motor is not correct |
Check the starting motor operation. Compare the starting motor with the engine and vehicle specifications. Refer to the manufacturer’s instructions. |
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Starting motor pinion or ring gear is damaged |
Remove the starting motor, and inspect the gear. Refer to Procedure |
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Hydraulic lock in a cylinder |
Remove the injectors and rotate the crankshaft. Look for the source of fluid in the cylinder. Refer to Procedures |
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Internal engine damage |
Analyze the oil and inspect the filters to locate an area of probable damage. Refer to Procedure |