ACTUATOR GP 4555962 - Caterpillar

Removal Procedure
Start By:
Remove the flywheel housing in order for the rear main bearing to be removed. Refer to Disassembly and Assembly, "Flywheel Housing- Remove and Install".
Remove the engine front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove".
Remove the oil supply tube. Refer to Disassembly and Assembly, "Crankshaft - Remove".
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00554537
Remove two bolts (1) that hold crankshaft main bearing cap (2) . Remove crankshaft main bearing cap (2) .Note: Be careful not to damage the bearings. Match each crankshaft main bearing cap and main bearing in order to ensure installation in the original location. The crankshaft main bearing caps are marked two through four and the caps have arrows that point to the front of the engine block. The rear main bearing cap is not numbered. The front main bearing cap only has a number.
Illustration 2 g00554539
Remove the lower half of the main bearing (3) from crankshaft main bearing cap (2) .
Illustration 3 g00656618
Use a suitable soft tool and carefully push upper bearing (4) on the side opposite the bearing tab in order to remove the bearing tab from the tab groove of the bearing housing.
If the crankshaft is turned in the wrong direction, the tab of the crankshaft main bearing will be pushed between the crankshaft and the cylinder block. this can cause damage to either or both the crankshaft and the cylinder block.
Carefully rotate the crankshaft in order to remove the upper half of crankshaft main bearing (4) . The crankshaft must be rotated in the correct direction so that the tab end of the bearing is removed first.Note: Be careful not to damage the bearings. Mark each main bearing in order to ensure installation in the original location.
Repeat Steps 1 through 4 for the removal of the remaining crankshaft main bearings.Note: Check the condition of the crankshaft main bearings. Refer to the Guideline For Reusable Parts, SEBF8009, "Main and Connecting Rod Bearings" or refer to the Guideline For Reusable Parts, SEBV0544, "Engine Bearings and Crankshafts".