HEATER 4976389 - Caterpillar

Removal Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A - Drill Bit (3 mm) 1
B 1U-7600 Slide Hammer Puller 1
C 1U-7262 Telescopic Magnet 1 Start By:
Remove the crankshaft pulley. Refer to Disassembly and Assembly, "Crankshaft Pulley - Remove and Install" for the correct procedure.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Illustration 1 g02927001
Apply clean grease to Tooling (A) to prevent any swarf that is generated from entering the engine. Use Tooling (A) to drill three evenly spaced holes in crankshaft front seal (1).
Use Tooling (B) with care to remove crankshaft front seal (1) from front cover (3) and crankshaft pulley adaptor (2). Alternate the position of Tooling (B) from one hole to another. Alternating the position of Tooling (B) will allow the crankshaft front seal to be easily removed from the crankshaft.
Use Tooling (C) to collect any swarf that has entered the engine.Installation Procedure
Table 2
Required Tools
Tool Part Number Part Description Qty
D(1) 460-8232 Crankshaft Front Seal Installer 1
D(2) 390-1125 Crankshaft Front Seal Installer 1
(1) Used for Procedure 1
(2) Used for Procedure 2Note: The tool used is determined by which crankshaft front seal is installed.Procedure 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Ensure that the crankshaft pulley adaptor and the front cover are clean and free from oil and damage.
Illustration 2 g02927218
Sectional view of the crankshaft front seal, the crankshaft pulley adaptor, and the installation tool
Use Tooling (D) and follow Step 2.a through Step 2.f to install crankshaft front seal (1).
Position the adaptor of Tooling (D) onto the crankshaft pulley adaptor and secure with bolts.
Position the new crankshaft front seal (1) over the adaptor onto the front of the crankshaft.
Align the seal installer of Tooling (D) with the crankshaft.Note: Check that the installer of Tooling (D) is parallel to the adaptor.
Install the nut and washer to the locator.
Tighten the nut until the installer bottoms out on the adaptor to install crankshaft front