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 CYLINDER COMPRESSION TEST 0033 00 THIS WORK PACKAGE COVERS: Before Test, Test, and After Test INITIAL SETUP: Tools: Cylinder compression adapter (item 1, WP 0176) Cylinder compression gauge (item 24, WP 0176) General mechanic’s tool kit (item 121, WP 0176) Mandatory Replacement Parts: Gasket (12) (item 272, WP 0175) Expendable and Durable Items: Lubriplate (item 23, WP 0173) Personnel Required: Track Vehicle Repairer (2) 63H10 Equipment Conditions: Engine at normal operating temperature with fuel supply cut off. Fuel injector nozzle assemblies removed (WP 0114) BEFORE TEST WARNING All nozzles must be removed when performing a compression check. Nozzle removal will prevent the possibility of the engine firing on other cylinders when the engine is cranked, and permits the engine to be cranked at the required rpm to check compression. Unexpected starting of the engine could injure personnel. NOTE Compression testing must be performed within 1 hour after stopping engine. 1. With all nozzles removed from engine, crank engine for 30 seconds to clear cylinders of possible sources of ignition. 2. Position new injector nozzle gasket (flat washer) (1) (item 272, WP 0175) on end of compression adapter (2) (item 1, WP 0176). Apply a light coating of Lubriplate (item 23, WP 0173) on gasket so it adheres to adapter when installed in cylinder. 2 1 WP 0033 00-1