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 VALVES AND ASSOCIATED PARTS REPAIR 0145 00 INSPECTION (Continued) 7. Inspect inner spring (5), intermediate spring (6), and outer spring (7) for wear, cracks, collapse, or other evidence of failure. Replace springs when worn, cracked, or otherwise damaged. 8. Measure springs (5, 6, and 7) using a valve spring tester. Replace springs that do not meet specifications in the following table. Location Sizes and Fits of New Parts pounds (Kg) Wear Limits Inner valve spring (small) Scale reading at 1.3-inch (33.020) Scale reading at 2.07-inch (52.578) Maximum solid height 43.9 (19.9306) 26.2 (11.8948) 1.28 inch (32.5 mm) +/- 4.39 (1.9930) +/- 1.31 (0.5947) none intermediate valve spring (medium) Scale reading at 1.56-inch (39.624) Scale reading at 2.26-inch (57.404) Maximum solid height 1.4 (0.6356) 81.4 (36.9224) 51.7 (23.4718) 1.34 inch (34.036 mm) +/- 8.14 (3.6995) +/- 2.60 (1.1804) none Outer valve spring (large) Scale reading at 1.56-inch (39.624) Scale reading at 2.26-inch (57.404) Maximum solid height 85.4 (38.7716) 134.2 (60.9268) 85.4 (38.7716) 1.47 inch (37.338 mm) +/- 13.42 (6.0926) +/- 4.27 (1.9385) none 9. Inspect spring retainer locks (8) for wear or cracks. Worn locks will have ridges on top face. Replace locks that are worn or cracked. 10. Inspect lock retainers (9, 10), and seat (11) for wear and cracks. Replace if worn or cracked. 11. Check rotor (12) by rotating inner section and inspect for wear or cracks. Replace rotor if inner section does not rotate freely or is worn or cracked. 8 12 11 5 10 6 6 7 7 5 9 8 WP 0145 00-3