TUBE 2A6940 - Caterpillar

Removal Procedure
Start By:
Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Remove" for the correct procedure.
If the engine is equipped with a fan, remove the fan. Refer to Disassembly and Assembly, "Fan - Remove and Install" for the correct procedure.
Remove the front seal from the front cover. Refer to Disassembly and Assembly, "Crankshaft Front Seal - Remove and Install" for the correct procedure.
Illustration 1 g01992013
Remove bolts (3) and bolts (4). Identify the positions of bolts of different length.
Remove front cover (1) from the front housing.
Remove gasket (2) from front cover (1). Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Guide Stud
M8 by 70 mm 2
B 367-3535 Front Cover Alignment Tool 1
Illustration 2 g02190133
Thoroughly clean the gasket surface of the front housing.
If the original front cover is installed, follow Step 2.a through Step 2.b.
Thoroughly clean front cover (1).
Install a new gasket (2) to front cover (1). Engage Locators (Y) into the holes in the front cover.
Install Tooling (A) into Holes (X) in the front housing.
Use Tooling (A) in order to position the front cover assembly onto the front housing.
Install bolts (3) and bolts (4) finger tight. Ensure that the bolts of different length are installed in the correct positions.
Install a new front seal to the front cover. Refer to Disassembly and Assembly, "Crankshaft Front Seal - Remove and Install" for the correct procedure.
Use Tooling (B) in order to align the front cover.
Remove Tooling (A) and install remaining bolts (4).
Tighten bolts (3) and bolts (4) to a torque of 22 N m (195 lb in).
Remove Tooling (B) from the front cover. End By:
Install the crankshaft pulley. Refer to Disassembly and Assembly, "Vibration Damper and Pulley - Install" for the correct procedure.
If the engine was equipped with a fan, install the fan. Refer to Disassembly and Assembly, "Fan - Remove and Install" for the correct procedure.