GEAR (66 TEETH) 3K7112 - Caterpillar

Remove Oil Cooler
1. Drain the coolant from the cooling system.2. Drain the oil from the oil cooler. 3. Remove the bolt and remove clips (1) from oil tube (2). 4. Disconnect oil hose (3) from elbow (4).5. Remove the bolts and retainers that hold oil tube (2) to elbow (4) and pull tube (2) out of elbow (4). Remove the bolts and remove elbow (4) from the oil cooler. 6. Remove the bolts to disconnect flange (5) and tube (6) from the water line adapter. Step 7 is for the 3512 Engines.
3512 ENGINES7. Remove the bolts from elbow (7) and remove elbow (7) and tube (8) as a unit from the oil cooler bonnet. 8. Fasten a hoist to the oil cooler and remove the bolts from bracket (9). Step 9 is for the 3512 Engine.
3512 ENGINES9. Remove two bolts (10) from bonnet (12) and pull oil cooler (13) from oil tube (11). Remove the cooler from the engine. The weight of cooler (13) is 65 kg (145 lb.). Step 10 is for the 3508 Engine.
3512 ENGINES10. Remove the four bolts from bonnet (16) and pull oil cooler (15) from oil tube (14). Remove the cooler from the engine. The weight of cooler (15) is 50 kg (110 lb.).Install Oil Cooler
Step 1 is for the 3508 Engine.
3508 ENGINES1. Put clean engine oil on the O-ring seal on oil tube (2). Fasten a hoist to oil cooler (3) and put cooler (3) in position on oil tube (2). Make sure the gasket is in place and install the four bolts in bonnet (1) to hold the cooler in position. Step 2 is for the 3512 Engine.
3508 ENGINES2. Put clean engine oil on the O-ring seal on oil tube (4). Fasten a hoist to oil cooler (6) and put cooler (6) in position on oil tube (4). Install the two bolts in bonnet (5) to hold the cooler in position. 3. Install the bolts that hold the oil cooler to bracket (7) and remove the hoist from the oil cooler. Step 4 is for the 3512 Engine.
3512 ENGINES4. Put clean engine oil on the O-ring seal on tube (8). Put elbow (9) and tube (8) in bonnet (5). Make sure the gasket is in place and install the bolts to hold elbow (9) to the engine. 5. Make sure the gasket is in place and install the bolts to hold flange (11) and tube (10) to the water line adapter. 6. Put clean engine oil on the O-ring seal on elbow (14). Put elbow (14) in position on the oil cooler and install the bolts to hold it.7. Put clean engine oil on the O-ring seal on the end of tube (13). Put tube (13) in position in elbow (14) and install the retainers and bolts to hold the tube.8. Connect oil hose (12) to elbow (14). 9. Put clips (15) in position on tube (13) and install the bolt to hold the clips in position.Disassemble Oil Cooler
start by:a) remove