TM-9-2815-220-24 Maintenance Manual for AVDS-1790-2CA AVDS-1790-DA and AVDS-1790-2DR Engines Download
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TM 9-2815-220-24 ENGINE ABNORMAL OIL PRESSURE 0018 00 THIS WORK PACKAGE COVERS: Troubleshooting Table and Diagnostic Tests INITIAL SETUP: Tools: General mechanic’s tool kit (item 121, WP 0176) Personnel Required Track Vehicle Repairer (2) 63H10 Equipment Conditions: Engine installed in vehicle or ground hop. MALFUNCTION 1: Low oil pressure, temperature normal. PROBABLE CAUSE CORRECTIVE ACTION a. Low oil level. (1) Refer to WP 0031, Engine Oil Replacement. b. Seasonal grade of oil improper (oil too light) for ambient temperature. (1) Check oil in engine. Drain and refill with proper grade of oil (refer to pertinent lubrication order). c. Oil diluted with fuel. (1) Refer to Malfunction 9 in this work package. (1) Check electrically (refer to pertinent vehicle technical manual). d. Pressure sending unit or gauge defective. (2) Repair or replace as required. e. Oil pressure regulator valve malfunction. (1) Inspect for sticky or defective valve. Repair or replace as required (WP 0074, Damper/Oil Filter Housing Related Parts Replacement). f. Defective oil pump or obstructed oil pickup screen. (1) Remove oil pump and inspect pump and screen (WP 0153, Oil Pump Assembly Replacement). (1) Check for deposits in filter. If found, disassemble engine, clean and repair as required (WP 0178, Disassembly/Assembly Procedure Sequence for the AVDS 1790-2 Engine). g. Crankshaft bearing worn or damaged. (2) Check for damage (WP 0139, Crankshaft Replace/Repair). WP 0018 00-1