2005/11/07 Caterpillar


An Updated Pump Has Improved Sealing Capability {5073}

Usage:

793C 4AR
Off-Highway Truck:
793C (S/N: CBR1-UP; 4AR1-UP; ATY1-UP; 4GZ1-UP)
Service Magazine SEPD0792, 11 July 2005, "An Updated Pump Has Improved Sealing Capability". Please disregard the previous article. The information in the table has been updated.

Reference: Refer to Power Train, Disassembly and Assembly, "Gear Pump (Torque Converter and Transmission) - Remove" and Disassembly and Assembly, "Gear Pump (Torque Converter and Transmission) - Install" for more information.

Description of Change: An updated pump group includes a new gasket, new bolts, new spacers and new hard washers. The new gasket provides a better sealing force. The new bolts are longer. The longer bolts retain the specified torque better. The longer bolts provide more bolt stretch. The longer bolts also ensure that the bolts remain tightened to the specified torque.

Adaptable To: The updated pump group is effective with the following machines:

  • 793C (S/N: CBR109-UP; ATY913-UP)

The updated pump group is adaptable to the following machines:

  • 793C (S/N: CBR1-108; 4AR1-UP; ATY1-912; 4GZ1-UP)

Table 1
Required Parts    
Pt. No.     Description     Qty    
261-3062     Gasket     1    
0L-2070     Bolt     8    
8T-4896     Hard Washer     8    
132-4354     Spacer     8    



Illustration 1g01183270

Updated 141-5866 Gear Pump Gp

(1) 0L-2070 Bolt

(2) 8T-4896 Hard Washer

(3) 132-4354 Spacer

(4) 1A-2029 Bolt

Note: Do not replace Bolt (4). Reuse Bolt (4) .Refer to Power Train, Disassembly and Assembly, "Gear Pump (Torque Converter and Transmission) - Remove" and Disassembly and Assembly, "Gear Pump (Torque Converter and Transmission) - Install" for more information.

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