TUBE AS 4534143 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 9S-9082 Engine Turning Tool 1
B 9U-5023 Main Bearing Wrench 1
C 2P-5517 Main Bearing Tool 1
D 230-5843(1)
or
236-6688(2) Main Bearing Cap Tool 2
(1) Use with 19.0 mm (3/4 inch) main bearing cap bolts.
(2) Use with 22.2 mm (7/8 inch) main bearing cap bolts.Start By:
Remove the engine oil pump.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g00930577
Remove covers (1) from the side of the engine.
Use Tooling (A) in order to rotate the crankshaft. Rotate the crankshaft in order to position the counterweight on the top.
Illustration 2 g00930580
Use Tooling (B) and loosen the bolts for the main bearing cap.
Illustration 3 g00930589
Remove the two outer bolts for main bearing cap (2) and install Tooling (D). Install Tooling (D) until Tooling (D) bottoms out in the block. Adjust nuts (3) on Tooling (D) until nuts (3) make contact with main bearing cap (2). Remove the two inner bolts for main bearing cap (2).
Illustration 4 g00930593
Loosen nuts (3) evenly in order to lower main bearing cap (2). Lower main bearing cap (2) to the end of the bolt on Tooling (D) in order to gain access to the main bearings.
Illustration 5 g00930603
Use Tooling (A) and rotate the crankshaft until the oil hole of the crankshaft journal is just below the side of the main bearing without the tab. Install Tooling (C) and remove the upper bearing.
Illustration 6 g00930606
Remove lower main bearing (4) from main bearing cap (2).