12M Motor Grader Engine Supplement Caterpillar


Rear Gear Group - Remove and Install

Usage:

12M B92

Removal Procedure

Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     1P-0520     Driver Gp     1    
B     1P-0510     Driver Gp     1    

Start By:

  1. Remove the flywheel and rear gear group.



    Illustration 1g01383883

  1. Remove bolts (1), retainer (2), and gear assembly (3) .



    Illustration 2g01383924

  1. Use Tooling (A) to remove bushing (4) from gear assembly (3) .

  1. Repeat Steps 1 and 2 for the opposite side.



    Illustration 3g01383927

  1. Remove bolts (5), adapter (6), and the O-ring seal.



    Illustration 4g01384414

  1. Use Tooling (B) to remove bearing (7) from adapter assembly (6) .



    Illustration 5g01384424

  1. Remove gear assembly (8) .



    Illustration 6g01384430

  1. Remove cover (9) and the O-ring seal.



    Illustration 7g01384432

  1. Use Tooling (B) to remove bearing (10) .

  1. Repeat Steps 4 through 8 for the opposite side.

Installation Procedure




    Illustration 8g01384432



    Illustration 9g01384692



    Illustration 10g01384693

  1. Lower the temperature of bearing (10). Install bearing (10) to Dimension (B) and Dimension (C). Dimension (B) is the angle of the joint on bearing (10). Dimension (B) is 15° ± 1°. Dimension (C) is the distance from bearing (10) to the end of the bore. Dimension (C) is 4.00 ± 0.50 mm (0.158 ± 0.020 inch).



    Illustration 11g01384714



    Illustration 12g01384715

  1. Lower the temperature of bearing (10A). Install bearing (10A) to Dimension (D) and Dimension (E). Dimension (D) is the angle of the joint on bearing (10A). Dimension (D) is 15° ± 1°. Dimension (E) is the distance from bearing (10A) to the end of the bore. Dimension (E) is 4.00 ± 0.50 mm (0.158 ± 0.020 inch).



    Illustration 13g01384430

  1. Install the O-ring seal and cover (9) .



    Illustration 14g01384783

  1. Install gear assembly (8). Make sure that oil passage plug (8A) is facing outward.



    Illustration 15g01384809



    Illustration 16g01384831

  1. Lower the temperature of bearing (7). Install bearing (7) to Dimension (F) and Dimension (G). Dimension (F) is the angle of the joint on bearing (7). Dimension (F) is 15° ± 1°. Dimension (G) is the distance from bearing (7) to the end of the bore. Dimension (G) is 3.50 ± 0.50 mm (0.138 ± 0.020 inch).



    Illustration 17g01383927

  1. Install the O-ring seal, adapter assembly (6), and bolts (5) .

  1. Repeat Steps 3 through 6 for the opposite side.



    Illustration 18g01384996

  1. Lower the temperature of bearing (4). Install bearing (4) into gear assembly (3). Be sure that each relief (H) in bearing (4) is within 2° of each relief in gear assembly (3) .



    Illustration 19g01383883

  1. Install gear assembly (3), retainer (2), and bolts (1) .

  1. Repeat Steps 8 and 9 for the opposite side.

End By: Install the flywheel and rear gear group.

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