DISC ASSEM. 8P8681 - Caterpillar

Remove Accessory Drive (Front)
Start By:a. remove alternator (if so equipped) 1. Remove the bolts and remove cover (1) from adapter assembly (2).2. Use two 1/2 "-13 NC Forcing Screws to remove adapter assembly (2) from the front drive housing. 3. Remove the bolts and remove adapter assembly (3), the drive gear and shaft as a unit from the front drive housing.Install Accessory Drive (Front)
1. Make sure the two O-ring seals are in position on adapter assembly (1) and put clean engine oil on them.2. Install the drive shaft, gear and adapter assembly (1) in the front drive housing. Make sure the teeth of the accessory drive gear are correctly engaged with the teeth of the oil and water pump drive gear and install the bolts to hold adapter assembly (1) in position. 3. Make sure the two O-ring seals are installed on adapter assembly (2) and put clean engine oil on the seals. Put clean oil on the lip of the seal and bearing in adapter assembly (2) and install the adapter assembly. Tighten the bolts to hold adapter assembly (2) in position.4. Install the cover on adapter assembly (2).End By:a. install alternator (if equipped)Disassemble Accessory Drive (Front)
Start By:a. remove accessory drive (front) 1. Remove O-ring seals (2) and (3) from the adapter (1). 2. Remove seal (4) from adapter (1). Use a press and Tool (A) to remove bearing (5) from adapter (1). 3. Remove bolts (7) to remove gear (8) from shaft (6). 4. Remove bolts (9) and the retainer washer to remove shaft (6) from adapter (10). 5. Remove O-ring seals (12) and (13) from adapter (10).6. Use a press and Tool (A) to remove bearing (11) from adapter (10).Assemble Accessory Drive (Front)
1. Make an alignment of the oil hole in the bearing and the oil hole in adapter (1). Use a press and Tool (A) to install the bearing in adapter (1). Check the bore in the bearing after assembly. The bore in the bearing must be 75.000 0.055 mm (2.9528 .0022 in).2. Install the two O-ring seals in adapter (1). 3. Put clean engine oil on the bearing and install shaft (3) in adapter (1). Install retainer washer (2) to hold the shaft and adapter together. 4. Put gear (4) in position on shaft (3) and install the bolts to hold them together. 5. Make an alignment of the oil hole in the bearing and the oil hole in adapter (5). Use a press and Tool (A) to install the bearing in adapter (5). Check the bore in the bearing after assembly. The bore in the bearing must be 75.000 0.055 mm (2.9528 .0022 in).6. Use Tool (A) to install the seal in adapter (5). Make sure the lip of the seal is toward the bearing as shown. 7. Install O-ring seals (6) and (7) on adapter (5). Put clean engine oil on the seals.End By:a. install accessory drive (front)