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 PISTONS, RINGS, AND ASSOCIATED PARTS REPLACE/REPAIR 0142 00 CLEANING (Continued) B 4 CAUTION Be careful not to scratch or gouge ring grooves and lands on piston. Failure to comply may result in premature failure. A 2. Scrape remaining carbon deposits from piston (4) ring grooves (A) with a scraper or broken piston ring. 3. Clean oil drain holes (B) in oil ring grooves of piston. WARNING Cleaning solvent is mildly toxic. Solvent evaporates and both the fumes and liquid are flammable. Continued contact with solvent can cause skin problems. Ensure there is good airflow when using solvent, and work area is away from heat and flames. • Keep fire extinguisher nearby. • Do not breathe solvent fumes. • Avoid skin contact. See Warning in front of Manual. 4. Clean carbon from piston pins (7) with crocus cloth (item 9, WP 0173) dipped in cleaning solvent (item 8, WP 0173). 5. Scrape any remaining carbon from the ends (in the gap) of piston rings (1, 2, 3). 7 3 1 2 WP 0142 00-4