PLATE 4744781 - Caterpillar

1. Bend lock away from bolts (1). Remove bolts, lock and retainer (2). Remove pulley and hub (3) as a unit. 2. Remove hub (4) from pulley (5). Remove the bearings and the spacer from hub (4). 3. Remove line (6) and fittings (10). Remove spring (7) and retainer (8). Remove spacer (9). 4. Remove dowels (13) with a hammer and a punch. Use a press to remove shafts (12) from bracket assembly (11).Assemble Fan Drive
1. Use a press to push shafts (1) and (2) into the bracket. Install the dowels in bracket assembly (3). 2. Install line (7), fittings (8), retainer (4) and spring (5). Put spacer (6) in position on shaft (1) with the chamfer up. 3. Install bearings (9) and (13) in hub (11) with spacer (10) between them. 4. Use tooling (A) to install seal (12) in hub (11). Put the seal in the hub until the top edge is even with the outside edge of hub (11). 5. Put hub (11) in position inside pulley (14). 6. Put bolt (15) in bracket assembly (3).7. Put pulley and hub in position on shaft (1). Install the retainer, lock and two bolts.END BY:a. install belt tightenerb. install fan drive and fan belt tightener as a unit