AXLE AR-OSCILLATING 3904493 - Caterpillar

2. Loosen clamps (7) and separate water pump outlet hose (6) from water pump (5).3. Disconnect bypass tube (2) at water pump.4. Loosen water pump inlet hose clamp (4).5. Remove two visible bolts (3) and remove two hidden bolts (1).6. Remove water pump.Install Water Pump
1. Install water pump on engine.2. Install four pump retaining bolts.3. Tighten water pump inlet hose clamp.4. Connect bypass tube.5. Connect water pump outlet hose to the water pump.6. Fill radiator with coolant to the specified level.Disassemble Water Pump
preparatory step: a) remove water pump1. Remove the water pump water inlet cover. 2. Remove the bearing assembly cover (1). 3. Back the impeller retaining bolt (2) out approximately .25 in. (6,0 mm). Strike the retaining bolt with a soft hammer to separate the impeller from the shaft. Remove the retaining bolt, washer, and impeller (3).4. Remove the seal and ring from the impeller. 5. Remove the bearing assembly retaining bolt (4) and washer.6. Using a hammer and soft punch, drive the shaft and seal assembly out the impeller end of the water pump housing.7. Remove the water pump drive gear from housing. 8. Remove the bearings (5) and spacer (6) from housing (7).9. Remove the lip-type seal (8) from housing.Assemble Water Pump
1. Install the lip-type seal in water pump housing with the lip of seal toward bearing end of housing. Lubricate the lip of seal with clean SAE 30 engine oil.2. Position the drive gear in housing, and install the shaft with key on shaft aligned with slot in drive gear.3. Lubricate the bearing assemblies with clean SAE 30 engine oil. Install the bearing assemblies and spacer in the pump housing. Install the retaining bolt and washer.4. Install the bearing assembly cover. 5. Using seal installer (A), install the seal assembly (4) in housing. 6. Install the seal (2) and ring (3) in the impeller with the polished surface of ring toward the seal assembly (4). 7. Position the impeller (5) on shaft, and install retaining bolt and washer. Tighten bolt (1) to 28 1 lb. ft. (3,9 0,14 mkg).8. Install the water pump water inlet cover (6).concluding step: a) install water pump