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 OIL PUMP REPAIR 0154 00 INSPECTION (Continued) 11. Measure outside diameter of shafts (40, 41). a. Measure outside diameter (A) of reserve impeller shaft (40). b. Measure outside diameter (B) of driven impeller shaft (41). c. Replace oil pump if not within specifications in the following table. Location Sizes and Fit of New Parts inches (mm) Wear Limits A, B 0.9834 (24.9783) 0.9839 (24.9910) 0.9829 (24.9656) B 41 A 40 12. Pressure relief springs (3, 4) are mandatory replacement items. a. New springs (3 or 4) may be tested with a spring tester to specifications in the following table. Location Sizes and Fit of New Parts inches (mm) Wear Limits 3 (Outer) Approximate free length: Load at 3.22 inch (81.788): Maximum solid height: 4.96 inch (125.984) 141.5-156.5 lb (64.241-71.096 kg) 2.90 inch (73.66) None 4 (Inner) Approximate free length: Load at 3.22 inch (81.788): Maximum solid height: 4.27 inch (108.458) 95-105 lb (43.13-47.67 kg) 2.94 inch (74.676) None 3 4 WP 0154 00-10