TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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Fig. No. 6-187 6-181 6-187 6-187 6-187 6-187 Table 6-32. Rear Fan and Accessory Ref. letter J K L M N P Setting height 3-1/2 4-5 / 8 2-9/16 4-1 / 4 5-1/4 1 Stud Identification No. req’d 2 1 4 9 2 2 Drive Housings Standard and Oversize on-Continued Stud size and length Note. Refer to figure 6-1 for oversize stud identification. d. Assembly. (1) Shimming procedures for rear fan driven gearshaft, rear fan drive bevel gearshaft, and accessory drive bevel gearshaft. Note. Before assembly of the rear fan and accessory drive housings, it is necessary to determine the shim thickness required to control the end play of the rear fan driven gearshaft and backlash of the fan drive bevel gearshaft. Figure 6-188 illustrates shim location and measuring points. The shim thickness for the accessory drive bevel gearshaft, which determines the backlash and end play of the two camshaft bevel gearshafts, is determined as shown in figure 6- 189. 6-157