2003/05/12 New Bearing and Bearing Cap Improves Service Life {6062, 7115} Caterpillar


New Bearing and Bearing Cap Improves Service Life {6062, 7115}
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Wheel Tractor-Scraper:
627B (S/N: 15S1-UP)
627E (S/N: 6EB1-UP; 6GB1-UP; 7CG1-UP)
627G (S/N: AXF1-UP; CEX1-UP)
637D (S/N: 27W1-UP; 71W1-UP)
637E (S/N: 1JB1-UP; 1FB1-UP)
637G (S/N: CEH1-UP; AXT1-UP)

Reference: Refer to Disassembly and Assembly, "Push-Pull Plate - Remove" for your machine. Refer to Disassembly and Assembly, "Push-Pull Plate - Install" for your machine.

Description of Change: New bearings and bearing caps have been designed in order to improve the retention of the bolts for the push block. The new bearings have hollow dowel pins that are incorporated into the design.

Adaptable To: The new parts are effective with (S/N: CEX209-UP) and (S/N: CEH238-UP).

The new parts are adaptable to the following machines: (S/N: 15S1-UP), (S/N: 6EB1-UP), (S/N: 6GB1-UP), (S/N: 7CG1-UP), (S/N: AXF1-UP), (S/N: CEX1-208), (S/N: 27W1-UP), (S/N: 71W1-UP), (S/N: 1JB1-UP), (S/N: 1FB1-UP), (S/N: CEH1-237) and (S/N: AXT1-UP).

If the former 8J-5011 Bearing is replaced, 8J-4918 Bearing Cap must be replaced. The following table contains the parts that are required if the former parts are replaced.

Table 1
Qty     New Pt. No.     Description     Former Pt. No.    
2     222-4617     Bearing     8J-5011    
2     222-4616     Bearing Cap     8J-4918    
8     132-8237     Hollow Dowel     N/A    
8     7X-0373     Bolt     7X-0371 (1)    
8     8T-4994     Hard Washer     N/A    
( 1 ) For (S/N: 15S1-UP), the former part number is 7F-5227 Bolt .
If the top 8J-4918 Bearing Cap needs to be replaced, the 8J-4918 Bearing Cap is still available. The following procedure is only required when 8J-5011 Bearing needs to be replaced.

Welding New Bearings onto Push Plate Assembly




Illustration 1g00997774

Right side view

(1) 7X-0373 Bolt

(2) 8T-4994 Hard Washer

(3) 222-4616 Bearing Cap

(4) 132-8237 Hollow Dowel

(5) 222-5517 Plate As

(5A) 222-4617 Bearing




Illustration 2g00997970

Push-Pull Plate Assembly

(A) 470 ± 2.0 mm (18.5 ± 0.08 inch)

(B) 235.0 mm (9.25 inch)

(C) 124.5 mm (4.90 inch)

(W1) 2.5 mm (0.10 inch) penetration

(W2) 12.7 mm (0.50 inch) fillet weld

  1. Remove plate assembly (5). Refer to Disassembly and Assembly, "Push-Pull Plate - Remove" for your machine.

  1. Remove the former 8J-5011 Bearing from plate assembly (5) .

  1. Locate bearing (5A) a length of (B) 235.0 mm (9.25 inch) from the center of the push plate assembly.

  1. Locate bearing (5A) a length of (A) 470 ± 2.0 mm (18.5 ± 0.08 inch) from the first bearing.

  1. Locate bearing (5A) a length of (C) 124.5 mm (4.90 inch) from the plate.

  1. Weld (W2) 12.7 mm (0.50 inch) fillet weld all the way around bearing (5A) with (W1) 2.5 mm (0.10 inch) of weld penetration.

  1. Apply 4C-5591 Anti-Seize Compound to the counterbores in the bearing caps and the counterbores in the bearings. Apply the anti-seize compound to hollow dowels (4) .

  1. Install hollow dowels (4) into bearing (5A) .

    Note: Apply 4C-4030 Thread Lock Compound to bolts (1) .

  1. Install plate assembly (5). Refer to Disassembly and Assembly, "Push-Pull Plate - Install" for your machine.

Replacement of Push Plate Assembly

If the process of welding the bearing caps is not desired, plate assembly (5) can be purchased. Bearing (5A) is part of plate assembly (5). The following parts will also need to be purchased:

Table 2
QTY     Pt. No.     Description    
2     222-4616     Bearing Cap    
8     132-8237     Hollow Dowel    
8     7X-0373     Bolt    
8     8T-4994     Hard Washer    

For more information, refer to Disassembly and Assembly, "Push-Pull Plate - Remove" for your machine. For more information, refer to Disassembly and Assembly, "Push-Pull Plate - Install".

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