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 ROCKER ARM ASSEMBLY AND COVER REPAIR 0105 00 CLEANING 1. See Work Package 0028 for General Cleaning Procedures. INSPECTION All parts must be inspected with care. Replace parts if damage or wear exceeds allowable limits. 1. See Work Package 0028 for General Inspection Procedures. 2. Inspect rocker arm cover (2) for cracks using a magnifying glass (item 73, WP 0176) and a strong light. Replace any cracked rocker arm cover. 3. Check straight shaft (5) for cracks, scores, and metal pick up or plugged oil passages. Replace any cracked, deeply scored, or plugged straight shafts. 4. Measure outside diameter of straight shaft (5) using outside micrometer (item 17, WP 0176). Replace straight shafts that do not meet the following limits: Location Sizes and Fits of New Parts inches (mm) Wear Limits A (Shaft diameter) 0.7480 (18.9992) 0.7485 (19.0119) 0.7470 (18.9738) 5. Inspect adjusting screw (7) for stripped or damaged threads. Replace adjusting screw if damaged. 6. Check adjusting screw (7) by turning in and out of rocker arm (1). Replace adjusting screw (7) that does not turn freely. 7. Check swivel pad (B) for free rotation on adjusting screw (7). Replace adjusting screw (7) if swivel pad (A) does not rotate freely. A 5 2 1 7 B WP 0105 00-3