2009/04/27 Caterpillar


A New Fan Adapter Is Now Used {1359}

Usage:

784C 2PZ
Off-Highway Truck/Tractor:
784C (S/N: 2PZ1-UP)
785C (S/N: APX1-UP)
785D (S/N: MSY1-UP)

Description of Change: A new fan adapter is now used on the machines that are listed above. The new fan adapter lowers stresses in the area of the flange. The new fan adapter is now made with ductile iron that increases the material strength and useful life of the adapter.

Adaptable To: The new 327-7990 Adapter is a direct replacement for the old 172-0221 Adapter. The 327-7990 Adapter is adaptable back to the first production of the listed machines.

The change is effective at the factory with the machine serial numbers 2PZ00107-UP, APX01662-UP and MSY00128-UP.




Illustration 1g01806480

(1) Fan pulley

(2) 5F-3144 O-Ring Seal

(3) 0T-0573 Bolt

(4) 5M-2894 Hard Washer

(5) 327-7990 Adapter

Table 1
Parts That Are Needed    
Quantity     Part Number     Description    
12     0T-0573     Bolt    
1     327-7990     Adapter    
1     5F-3144     O-Ring Seal    
12     5M-2894     Hard Washer    
Refer to Illustration 1 and Table 1 for aid in mounting the new adapter.

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