SEAL AS 1920943 - Caterpillar

Illustration 1 g02475578
Use Tooling (A) in order to remove engine oil filter (5). Remove plug (3) and drain the engine lubricating oil. Remove O-ring seal (4) (not shown) from plug (3). Refer to Operation and Maintenance Manual, "Engine Oil and Filter - Change" for correct procedure.
If necessary, remove breather hose (1) from the clip. Position the breather hose away from the engine oil pan.
Loosen nut (6) and remove tube assembly (2). Remove O-ring seal (7) and seal (8) from the tube assembly.
Illustration 2 g02475581
Remove nuts (9) and bolts (10) from engine oil pan (11). Note: The bolts are different lengths. Note the position of the different bolts.
Attach a suitable lifting device to engine oil pan (11). Support the weight of the engine oil pan. The engine oil pan weighs approximately 41 kg (90 lb).
Use the lifting device to remove engine oil pan (11) from the cylinder block.
Remove gasket (12) from the cylinder block. Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
A - Loctite 5900 -
B - Loctite 243 -
C - Straight Edge 1 Note: In order to install a cast iron oil pan, the engine must be removed from the machine.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the gasket face of the cylinder block and the engine oil pan are clean and free from damage. Inspect the studs in the cylinder block for damage. If necessary, replace the studs.
Illustration 3 g03701801
Illustration 4 g03701802
Apply a bead of Tooling (A) to Positions (X) on the cylinder block. Note: If the bridge piece for the cylinder block has just been installed, the engine oil pan must be installed before Tooling (A) has cured.
Illustration 5 g03701799
Illustration 6 g03701800
Illustration 7 g03701798
Align a new gasket (12) with the studs in the cylinder block. Install the gasket to the cylinder block.
Apply a 3 mm (0.118 inch) bead of Tooling (A) to edge of gasket (12) in Position (Y) on both sides of the gasket.
Attach a suitable lifting device to engine oil pan (11). The engine oil pan weighs approximately 41 kg (90 lb).
Use the lifting device to align engine oil pan (11) with the studs in the cylinder block. Install the engine oil pan to the cylinder block. Remove the lifting device from the engine oil pan.
Install nuts (9) and bolts (10) finger tight.
Align the rear face of engine oil pan (11) to the rear face of cylinder block (13) on both sides. Use Tooling (C) and a feeler gauge in order to check the alignment between the engine oil pan and the cylinder block. The maximum step that is allowed between the cylinder block and the sump is 0.1 mm (0.004 inch).
Tighten bolts (9) and nuts (10) to