LINK AS-TRACK 2726009 - Caterpillar

Remove Rear Gear Group
start by:a) remove flywheel housing
3508 ONLY Before the flywheel housing is removed, the 3508 engine must be put in time to make sure the rear gear group is in alignment according to the rotation of the engine as shown. 1. Remove plate (1) to remove gear assembly (2) from the shaft. 2. Use tool group (A) and a press to remove bearing (3) from gear assembly (2).3. Use tool group (A) and a press to make a separation of the gears for gear assembly (2). 4. Remove the bolts to remove the shafts, gears (4) and the washers from the cylinder block. 5. Remove washers (6) and shafts (5) from gears (4). 6. Use tool group (A) and a press to remove the bearings from gears (4). Remove shaft (7) from engine. 7. Remove the bolts and remove gear (8) from the end of the crankshaft.Install Rear Gear Group
1. Put gear (1) in position on the end of the crankshaft and install the bolts. 2. Install shaft (2) on the cylinder block. 3. Use tool group (A) and a press to install the bearings in both gears (3) until the bearings are in the center of their bores. The bore in the bearing must be 75.00 0.053 mm (2.9528 .0021 in.) after assembly. 4. Put clean engine oil on the bearings and install shafts (5) in gears (3). Install washers (4) on the shafts. 5. Put gears (3) in position on the cylinder block and install the bolts to hold the gears in position. 6. Use tool group (A) and a press to install bearing (6) in gear assembly (7). The bore in bearing (6) must be 75.00 0.053 mm (2.9528 .0021 in.) after assembly. 7. Heat the larger gear of gear assembly (7) to a maximum temperature of 400° C (752° F) and install it on the smaller gear as shown.8. Put clean engine oil on the bearing and install gear assembly (7) on the shaft. Step 9 is for the 3508 Engine.9. Put clean engine oil on the bearing and install the gear assembly on the shaft. Make sure the marks on the gear assembly and the crankshaft gear are in alignment according to the rotation of the engine as shown.
3508 ONLY 10. Put plate (8) in position on gear assembly (7) and install the bolts.end by:a) install flywheel housing