NMWR-9-2815-220 Overhaul Manual for M60 M88 Engine AVDS-1790-2CA, AVDS-1790-2DA, AVDS-1790-2DR Download
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NMWR 9-2815-220 CRANKSHAFT AND ASSOCIATED PARTS OVERHAUL—Continued 0008 00 INSPECTION 1. Inspect components not covered by an OIP in accordance with WP 0005 00. 2. Refer to WP 0005 00 and the OIPs in Table 1 for specific inspection criteria for selected items. 3. Discard all mandatory replacement parts. Refer to Figure 1. Table 1. Components Requiring Overhaul Inspection. COMPONENT OIP Crankshaft (item 2, Figure 5) 12254238 (Table 2) Crank pin bearing oil plug (item 5, Figure 5) 10865183 (Table 3) Engine crankshaft vibration dampener (item 7, Figure 5) 5654225 (Table 4) Engine accessory bracket (item 8, Figure 5) 10882610* (Table 5) Fuel pump drive spur gear (item 12, Figure 5) 10882613* (Table 6) Power take-off spur gearshaft (item 13, Figure 5) 12275793** (Table 7) Accessory drive spur gear (item 1, Figure 6) 10898778 (Table 8) Engine flywheel (item 2, Figure 6) 10912453 (Table 9) Transmission accessory spur gear (item 3, Figure 6) 8725260* (Table 10) Engine flywheel (item 6, Figure 6) 11682645** (Table 11) Engine flywheel housing adapter (item 7, Figure 6) 11684197** (Table 12) * Model AVDS-1790-2CA and AVDS-1790-2DA ** Model AVDS-1790-2DR RECLAMATION 1. Use the procedures outlined below to reclaim the crankshaft rear oil seal surface. (a) Inspect crankshaft rear oil seal surface (Figure 1) for wear caused by the oil seal lip. If seal wear (groove) is 0.003 in. (0.0762 mm) deep, or less, it can be repaired by blending (polishing) the groove and scoring the seal surface with 80 grit paper at a 45° angle, with the spiral (pattern) as shown in Figure 2. CAUTION Do not spin the crankshaft when scoring the rear oil seal surface. (b) If seal wear (groove) exceeds 0.003 in. (0.0762 mm) depth on a side, it must be restored to serviceable condition before being reused. Grind the area shown in Figure 3 to eliminate the wear groove. Restore the seal surface by applying hard chrome plate in the area shown in Figure 3 to a depth of 0.002 – 0.005 in. (0.0508 – 0.127 mm) thick on a side after finish. (c) Grind the rear oil seal surface and polish to the dimensions shown in Figure 4. (d) Score the rear oil seal surface with 80 grit paper as shown in Figure 2. 0008 00-2