SCREEN AS 7C4483 - Caterpillar

On-highway Engine: Truck
3406
3406B
3406C
3406E
3408
C15
C16Description of Change: A new front crankshaft seal and a new rear crankshaft seal are now in production. Production for both seals started 9January 2003. These new seals are for the front and rear sealing journals of the crankshaft. The new seals incorporate a one piece seal/wear sleeve combination. The new crankshaft seals have a redesigned wear sleeve that has a flanged face. This new flanged face rotates with the crankshaft in order to keep dirt away from the sealing lip. This will provide better control of contaminants.The removal procedure for the new seals has been changed, from the former seal design because of the new flanged face on the wear sleeve. The seal face is blocked or hidden by the new flanged face on the wear sleeve. Refer to the section "Removal Procedure" and table 2 for the required removal tools. The assembly procedure for the new seals has not changed from the former seal design. Refer to section "Installation Procedure" and table 3 for the required tools for assembly.Adaptable To: The new crankshaft front seal and the new rear seal is adaptable to the above Truck Engines: 3406, 3408, C15 and C16. The new crankshaft seals are a direct replacement for the former seals. Refer to table 1 below for the new part numbers and the former part numbers.
Table 1
Parts List    
Item     Qty     New Part Number     Description     Former Part Numbers    
1     1     142-5867     Front Crankshaft Seal     2W-1733, 4P-2733, or 187-8953    
1     1     142-5868     Rear Crankshaft Seal     2W-1734, 101-1716, or 130-8107    Removal Procedure
Use the same removal procedure for the front and rear seals.Reference: See table 2 and illustration 1.
Table 2
Required Tools    
Tool    Part Number    Part Description    Qty    
A     1U-7600     Slide Hammer Puller     1    
Illustration 1 g00997360
New seal (1) Seal (2) Wear sleeve (3) Wear sleeve flange
Use a hammer and a punch in order to puncture 3 or more holes into the wear sleeve (2) on the flange side of the wear sleeve (3). Use Tool (A) to remove the wear sleeve (2) .
Use a punch or Tool (A) to puncture a hole in seal (1). Use Tool (A) to remove seal (1) .Installation Procedure
Reference: See table 3 and illustrations 2, 3, and 4.
Table 3
Required Tools    
Tool    Part Number    Part Description    Qty    
A     5P-1733     Seal Locator     1    
B     5P-1737     Bolts     3    
C     9S-8858     Nut (Seal Installer)     1    
D     6V-6142     Front Seal Installer     1    
E     6V-6143     Rear Seal Installer     1    
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Note: The seal and the wear sleeve must be replaced at the same time. Once the seal and the wear sleeve