GEAR PUMP GROUP 1P4165 - Caterpillar

Remove Front Balancer Group
Start By:a. remove front drive housing 1. Remove the bolts that hold the brackets for shaft (2) to the front of the cylinder block. Disconnect the levers on shaft (2) from the levers on shafts (1) and (3), and remove shaft (2) from the engine. 2. Use tool (A) to make an alignment of the marks on balancer gear (4) and crankshaft gear (6) according to the rotation of the engine as shown. 3. Remove the bolts, and remove plate (5) from balancer gear (4). Remove balancer gear (4) from the shaft. 4. Use tool group (A) and a press to remove bearing (7) from balancer gear (4). 5. Remove shaft (8) from the end of the cylinder block.6. Remove crankshaft gear (6) from the end of the crankshaft.Install Front Balancer Group
1. Put crankshaft gear (2) in position on the end of the crankshaft, and install the bolts that hold it.2. Install shaft (1) on the end of the cylinder block. 3. Use tool group (A) and a press to install the bearing in balancer gear (3). Make sure the bearing joint is in the center of the heavy section in gear (3). The bore in the bearing must be 75.00 0.053 mm (2.953 .0021 in.) after assembly. 4. Put balancer gear (3) in position on the shaft. Make sure the marks on the balancer gear and the crankshaft gear are in alignment according to the rotation of the engine as shown.5. Install plate (4) and the bolts to hold it on the balancer gear. 6. Put shaft (7) in position on the cylinder block. Make sure the levers on shaft (7) are correctly engaged with the levers on shafts (5) and (6). Install the bolts to hold the brackets and shaft (7) to the cylinder block.End By:a. install front drive housing