2.5.1 Malfunction Symptom Index

1. ENGINE FAILS TO START OR FAILS TO START EASILY

TM-5-3895-373-34 Paving Machine Bituminous Material Crawler Mounted Diesel Engine Driven Manual
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TM 5-3895-373-34 2.5.1 Malfunction Symptom Index. The malfunction symptom index is a reference list of the troubleshooting tables. Refer to the malfunction symptom index before troubleshooting. Each system and its faults are listed in the order they appear in the troubleshooting tables. To find the correct test or inspection procedure, refer to the system and its symptom. A troubleshooting procedure reference is listed for each symptom. Refer to the correct procedure in the troubleshooting tables. Malfunction Symptom Index TROUBLESHOOTING TABLE Engine .............................................................. 2-1 Engine fails to start or fails to start easily Low power output, excessive fuel consumption/black exhaust, or misfiring Blue or white exhaust Low oil pressure High oil pressure Engine knocking Rough or erratic running/excessive engine vibration Overheating Poor compression Track tension ..................................................... 2-2 Track fails to maintain operating tension Track fails to maintain correct tension (in reverse only) Auxiliary hydraulic supply to vibration and cylinder circuits faulty Propulsion system ............................................. 2-3 Track fails to move or moves sluggishly Track fails to move at either travel or pave speed Track moves one direction only Mistracking No hydraulic functions Tow point .......................................................... 2-4 Tow point lift cylinders do not operate One tow point lift cylinder fails to operate Auxiliary hydraulic supply to vibration and cylinder circuits faulty Screed lift ......................................................... 2-5 Screed fails to lift Screed fails to lower Screed fails to maintain position Auxiliary hydraulic supply to vibration and cylinder circuits faulty Hopper lift ......................................................... 2-6 Hopper fails to operate One hopper wing fails to operate Hopper wing fails to remain in raised position Auxiliary hydraulic supply to vibration and cylinder circuits faulty Auger/conveyor ................................................. 2-7 Auger/conveyor does not operate or operates sluggishly Auger/conveyor operates continuously Vibration ............................................................ 2-8 Vibrators fail to operate or operate sluggishly Extension screed vibrators fail to operate Vibrator runs continuously Auxiliary hydraulic supply to vibration and cylinder circuits faulty Vibration pump hydraulic supply faulty Auxiliary Screed extension................................ 2-9 Screed extension fails to operate One screed extension function fails to operate Auxiliary hydraulic supply to vibration and cylinder circuits faulty 2-4

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