ELBOW 3550555 - Caterpillar

Removal Procedure
Start By:
Remove the engine oil pan. Refer to Disassembly and Assembly, "Engine Oil Pan - Remove and Install".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines.Dispose of all fluids according to local regulations and mandates.
The engine oil pump idler gear can fall off of the pump when the pump is removed or installed. Injury may result. To help prevent injury, always hold the idler gear on the pump when the pump is removed or installed.
Illustration 1 g00501740
Remove bolt (1) and the lock washer that holds the suction bell to the oil pan plate.
Remove two bolts (3) that hold the scavenge line to engine oil pump (4) .
Remove four bolts (2) and the washers that hold engine oil pump (4) to the cylinder block. Hold the gears on the oil pump and remove the engine oil pump and the suction bell as a unit.