2009/09/30 Shims are Available for Improved Strength of Draft Arm and the Bearing Joint on Wheel Tractor-Scrapers {6207, 6245} Caterpillar


Shims are Available for Improved Strength of Draft Arm and the Bearing Joint on Wheel Tractor-Scrapers {6207, 6245}
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2009/09/30 [SEPD1012]
FRAME AND BODY
FRAME GP
2009/09/30 Shims are Available for Improved Strength of Draft Arm and the Bearing Joint on Wheel Tractor-Scrapers {6207, 6245}
Wheel Tractor-Scraper:
621F (S/N: 4SK1-UP)
621G (S/N: DBB1-UP; CEN1-UP; ALP1-UP)
623F (S/N: 5EW1-UP)
623G (S/N: DBC1-UP; CES1-UP; ARW1-UP)
627F (S/N: 1DL1-UP)
627G (S/N: DBD1-UP; AXF1-UP; CEX1-UP)
631E (S/N: 1AB1-UP)
631G (S/N: DFA1-UP; AWK1-UP; CLR1-UP)
637E (S/N: 1FB1-UP)
637G (S/N: CEH1-UP; DFJ1-UP; AXT1-UP)
651E (S/N: 4YR1-UP)
657E (S/N: 5YR1-UP; 6TR1-UP)
657G (S/N: W1B1-UP; W1C1-UP; A4G1-UP)

Description of Change: The joint for the draft frame and bearing cap has been improved. The improved joint will provide better stability and longer life of the joint and components.

Adaptable To: The following spacers will provide a solid joint, when the bearing caps for the draft arms are replaced on the Wheel Tractor-Scrapers that are listed above. The new hardware is adaptable to the following families of Wheel Tractor-Scrapers:

  • 620

  • 630

  • 650

Table 1
Parts List    
Callout     New Part     Description     Qty     Model    
(1)     9T-0065     Shim     1     620    
(2)     4T-9707     Shim     1     630    
(3)     346-3300     Shim     1     650    
( 1 ) Remove 7 mm (0.28 inch) at dimension (A) .
( 2 ) Remove 6 mm (0.24 inch) at dimension (A) .
( 3 ) This shim requires no trimming of dimension (A) .

The Procedure to Install the Shims With the New Bearing Cap




    Illustration 1g01945380

    A view of a typical draft frame and bearing cap

  1. Install the appropriate bearing cap (1) and tighten bolts (2). Refer to the Disassembly and Assembly manual for your machine. This will provide information regarding the disassembly and the assembly of this bearing cap.

  1. Then inspect the gap in the bolted joint (3) by using a feeler gauge.

  1. Create a shim pack that is equal to the measured gap plus 1.5 ± 0.05 mm (0.06 ± 0.002 inch). More than one shim may be required.



    Illustration 2g01944939

    If the shim requires trimming then Reference Table1.

  1. Trim (A) to the dimension that is referenced in Table 1. Blend the radius into radius (B) .

  1. Install the shim between the cap and the draft arm and tighten the bolts. Refer to the Disassembly and Assembly manual for your machine.

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