TM-9-2815-200-35 Maintenance Manual for AVDS-1790-2M AVDS-1790-2A and AVDS-1790-2AM Engines Download
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(3) Fuel injection pump advance assembly. Refer to figures 6-191, 6-192, 6-181, 6-193 through 6-198, 6-174 and 6-173. 1. Position shim (A) of predetermined thickness (fig. 6- 189) on bearing hub of accessory drive gearshaf. 2. Position bevel gearshaft ball bearing (B) on hub, with bearing trademark facing away from gearshaft. 3. Press bearing on gearshaft. Note. Install rear bearing support (fig. 6- 184) on bearing using a soft faced hammer. Figure 6-190. Pressing bevel gear-shaft ball bearing on gearshaft. (2) Rear fan drive clutch assembly. Refer to table 6-24 for appropriate clutch assembly sequence. 1. Place accessory drive bevel gearshaft (A) in a soft jawed vise. 2. Install vane housing cover (B) on gearshaft until it exposes the retaining ring groove. 3. Install retaining ring (C) in groove. Pull cover (B) forward until retaining ring is seated in the cover retaining ring groove. Figure 6-191. Installing advance vane housing cover on accessory drive bevel gearshaft. 6-160