PIN 4373391 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 1U-7600 Slide Hammer Puller 1
B - Drill Bit 4 mm (0.158 inch) 1 Start By:
Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley - Remove and Install" for the correct procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g03343092
Apply clean grease to Tooling (B) in order to prevent any swarf that is generated from entering the engine. Use Tooling (B) to drill three evenly spaced holes in crankshaft front seal (2).
Ensure that the main lip is used in order to remove the crankshaft front seal. Do not damage the edge of the housing for the crankshaft front seal.
Note: Do not damage the crankshaft during the removal process of the crankshaft front seal.
Use Tooling (A) to remove crankshaft front seal (2). Alternate the position of Tooling (A) from one hole to another hole. Alternating the position of Tooling (A) will allow you to evenly removal of the crankshaft front seal from front housing (1). Alternative Removal Procedure
Start By:
Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley - Remove and Install" for the correct procedure.
Remove the front housing. Refer to Disassembly and Assembly, "Housing (Front) - Remove" for the correct procedure.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: This alternative procedure can be used to remove the crankshaft front oil seal. This procedure may be used if the front housing has been removed from the engine.
Use a suitable mandrel and a press in order to remove the oil seal from the front cover. Ensure that the front cover is supported in order to prevent damage to the cover while the oil seal is being removed. Installation Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 2 g03343093
Ensure that the bore in front housing (1) and the nose of the crankshaft are clean and free from damage.
Lubricate the lip of a new crankshaft front seal (2) with clean engine oil.
Position crankshaft front seal (2) in the bore of front housing (1).
Ensure that the lip of the crankshaft front seal that is spring loaded is facing toward the inside of the front housing and that it is square with the bore of the housing for the crankshaft front seal.
Use a suitable tool to install crankshaft front seal (2) to front housing (1). End By:
Install the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley - Remove and Install" for the correct procedure.