TUBE AS 3481048 - Caterpillar

1. Remove the inspection plate from the conveyor drive drop housing. If the master link for conveyor drive chain (1) is not accessible, start the engine and jog the feeder switch until the master link is accessible. Stop the engine.2. Remove the conveyor drive motor. See the topic, Remove Conveyor Drive Motor, in this manual. 3. Loosen four bolts (2) and jam nut (5). Turn adjusting nut (4) on support bolt (3) until conveyor drive chain (1) is slack.4. Remove the master link from conveyor drive chain (1). Remove the conveyor drive chain from the conveyor torque hub sprocket. 5. Attach a lifting device to conveyor torque hub (9). The weight of the conveyor torque hub is 34 kg (75 lb.).6. Loosen jam nuts (5) and (6), and remove support bolt (3) from plate (8).7. Remove four bolts (2), and remove plate (8) and conveyor torque hub (9) from the machine.8. Remove two bolts (10), and remove sprocket (11) from the conveyor torque hub.9. Support plate (8). Remove nine bolts (7), and remove plate (8) from conveyor torque hub (9). The following steps are for installation of the conveyor torque hub.10. Position conveyor torque hub (9) on plate (8), and install nine bolts (7). Make sure the conveyor torque hub filler plug is at the top and the drain plug is at the bottom.11. Install sprocket (11) on the conveyor torque hub shaft, and install two bolts (10).12. Position plate (8) and conveyor torque hub (9) on the machine, and install four bolts (2). Do not tighten the bolts at this time.13. Position conveyor drive chain (1) on the conveyor torque hub sprocket, and install the master link.14. Install support bolt (3) in plate (8), and tighten nut (6).15. Adjust the conveyor drive chain tension. See the Operation And Maintenance Manual.16. Install the conveyor drive motor. See the topic, Install Conveyor Drive Motor, in this manual.17. Install the inspection plate on the conveyor drive drop housing.Disassemble And Assemble Conveyor Torque Hub
Start By:a. remove conveyor torque hub
When removing bolts (2), mark the location of the four shoulder bolts for assembly.
1. Remove twelve bolts (2), and remove cover (1) from the ring gear. 2. Remove O-ring seal (3), washer (4) and thrust washer (5) from cover (1). 3. Remove ring gear (7), coupling (8) and carrier assembly (9) from hub (6). Remove the O-ring seal from the ring gear. 4. Remove input shaft assembly (10) from carrier assembly (9). 5. Remove retaining ring (11), and remove thrust washer (12), thrust bearing (13), thrust washer (14), thrust spacer (15) and input gear (16) from input shaft (17).
Be careful not to loose any of the needle rollers from inside gear (21) when the shaft is removed from the carrier.
6. Use a hammer and punch, and push pin (20) into shaft (18). Remove the shaft from carrier (19).7. Remove gear (21) and thrust washers (22) from carrier (19).8. Remove sixteen needle rollers (23), spacer (24) and sixteen needle rollers (25) from gear (21).