VALVE GP-CONTROL 2451662 - Caterpillar

Remove Accessory Drive (Front)
start by:a) remove alternator (if so equipped)b) remove governor drive1. If the engine is equipped with an alternator, remove the bolts to remove the alternator pulley from the drive shaft. 2. Remove bolts (1) and cover (2) from adapter assembly (3). Remove bolts (4) and use two 1/2"-13 NC forcing screws to remove adapter assembly (3) from the drive housing. 3. Remove bolts (6) to remove adapter assembly (5), the drive gear and shaft as a unit from the drive housing.Install Accessory Drive (Front)
1. Put clean engine oil on the two O-ring seals on adapter assembly (1).2. Install the drive gear, shaft and adapter assembly (1) in the drive housing. Make sure the drive gear teeth are in alignment with the teeth of the oil and water pump drive gear. Install the bolts that hold adapter assembly (1) in the drive housing. 3. Put clean engine oil on the two O-ring seals on adapter assembly (2). Put adapter assembly (2) in position in the drive housing and install the four bolts that hold it in position. Put the cover with a gasket in position on adapter assembly (2) and install the two bolts that hold the cover and gasket in position.4. If the engine is equipped with an alternator, put the alternator pulley in position on the drive shaft and install the bolts that hold it in position. end by:a) install alternator (if so equipped)b) install governor driveDisassemble Accessory Drive (Front)
start by:a) remove accessory drive (front) 1. Remove O-ring seals (2) and (3) from the adapter. 2. Remove seal (4) from adapter (1). Use a press and tool group (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 group (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 group (A) and 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 group (A) and 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 group (A) to