LINK 0931970 - Caterpillar

preparatory step: a) remove oil pan1. Remove the suction screen mounting bolt.2. Remove the oil pump mounting bolts (1).3. Remove the oil pump-weight 40 lbs. (18,1 kg).Install Oil Pump
Prime the oil pump with SAE 30 engine oil before installation.
1. Position the oil pump on the engine, and install the pump mounting bolts and screen mounting bolt.concluding step: a) install oil panDisassemble Oil Pump
preparatory step: a) remove oil pump 1. Remove the oil pump idler gear (1). Using tool setup (A), remove the bearing from the gear.2. Remove the suction bell assembly (2) and relief valve oil tube (3). 3. Remove the relief valve (4) and spring (5).4. Using tool setup (B), pull the oil pump drive gear from the shaft. Remove the woodruff key. 5. Remove the oil pump housing cover (6).6. Remove the pump gears. 7. Using tool setup (C), remove the bearings from the pump housing and gear.8. Remove the bearing from the pump housing cover.Assemble Oil Pump
1. Using tool setup (A), install the bearing in the oil pump idler gear. Recess the bearing edge flush with the inner edge of the chamfer. 2. Using tool setup (B), install the bearings in the pump housing, pump gear and pump housing cover. Recess the bearing edge flush with the inner edge of the chamfer. 3. Lubricate the bearings, gears (1) and shaft with clean SAE 30 engine oil. Install the gears into the pump housing.4. Install the oil pump housing cover (2).5. Heat the oil pump drive gear to 350°F (177°C). Install the woodruff key and gear on the pump shaft.6. Install the relief valve and spring.7. Install the suction bell assembly, relief valve oil tube and install idler gear.concluding step: a) install oil pump